MM908E624AYPEWR2 [NXP]
Relay driver, 3x HSS, I-sense, VREG, 8-bit MCU, 512B RAM, 16KB Flash, LIN, SOICW 54 , Reel;型号: | MM908E624AYPEWR2 |
厂家: | NXP |
描述: | Relay driver, 3x HSS, I-sense, VREG, 8-bit MCU, 512B RAM, 16KB Flash, LIN, SOICW 54 , Reel 时钟 微控制器 光电二极管 外围集成电路 |
文件: | 总39页 (文件大小:773K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Document Number: MM908E624
Rev. 11.0, 4/2012
escale Semiconductor
Technical Data
Integrated Triple High Side
Switch with Embedded MCU
and LIN Serial Communication
for Relay Drivers
908E624
HIGH SIDE SWITCH
The 908E624 is an integrated single-package solution that
includes a high performance HC08 microcontroller with a
SMARTMOS analog control IC. The HC08 includes flash memory, a
timer, enhanced serial communications interface (ESCI), an analog-
to-digital converter (ADC), internal serial peripheral interface (SPI),
and an internal clock generator module. The analog control die
provides three high side outputs with diagnostic functions, voltage
regulator, watchdog, current sense operational amplifier, and local
interconnect network (LIN) physical layer.
The single package solution, together with LIN, provides optimal
application performance adjustments and space saving PCB design.
It is well-suited for the control of automotive high current motors
applications using relays (e.g., window lifts, fans, and sun roofs).
EW (Pb-FREE) SUFFIX
98ASA99294D
54-pin SOICW
Features
• High performance M68HC908EY16 core
• 16 KB of on-chip flash memory, 512 B of RAM
• Internal clock generator module
• Two 16-bit, two-channel timers
• 10-bit ADC
ORDERING INFORMATION
Device
Temperature
Range (TA)
(Add an R2 suffix for Tape
and reel orders)
Package
• LIN physical layer interface
• Low dropout voltage regulator
• Three high side outputs
• Two wake-up inputs
MM908E624ACPEW
MM908E624AYPEW
-40°C to 85°C
-40°C to 125°C
54 SOICW
• 16 microcontroller I/Os
908E624
VBAT
LIN Interface
5.0 V
VSP1
VSP
LIN
VREFH
VDDA
EVDD
VCC
HS3
VDD
L1
L2
VREFL
VSSA
EVSS
AGND
GND
HS1
RXD
PTE1/RXD
RST
M
RST_A
IRQ
IRQ_A
HS2
+E
PTD0/TACH0
PW/MIN
PTA0-4
WDCONF
PTB1;3-7
PTC2-4
Microcontroller
Ports
To Microcontroller A/D Channel
PTD1/TACH1
OUT
-E
Figure 1. 908E624 Simplified Application Diagram
*This document contains certain information on a product under development.
Freescale reserves the right to change or discontinue this product without notice.
© Freescale Semiconductor, Inc., 2012. All rights reserved.
RNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
AGND
GND
VSUP2
VSUP1
PWMIN
RST_A
IRQ_A
WDCONF
LIN
RXD
PTE1/RXD
PTD0/TACH0
RST
IRQ
C R T P O
D D R C
D T R P O
D D R D
E R T P O
D D R
E
s
B u
a n r e I n t
l
VREFL
D D R A
A T R P O
D D R B
B R T P O
VSSA
EVSS
EVDD
VDDA
VREFH
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
2
PIN CONNECTIONS
PIN CONNECTIONS
1
PTB7/AD7/TBCH1
PTB6/AD6/TBCH0
PTC4/OSC1
PTC3/OSC2
PTC2/MCLK
PTB5/AD5
PTB4/AD4
PTB3/AD3
IRQ
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
PTA0/KBD0
PTA1/KBD1
PTA2/KBD2
FLSVPP
PTA3/KBD3
PTA4/KBD4
VREFH
VDDA
EVDD
EVSS
VSSA
VREFL
PTE1/RXD
NC
RXD
WDCONF
+E
-E
OUT
VCC
AGND
VDD
NC
VSUP1
GND
LIN
VSUP2
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
RST
PTB1/AD1
PTD0/TACH0
PTD1/TACH1
NC
NC
NC
PWMIN
RST_A
IRQ_A
NC
NC
NC
L1
L2
HS3
HS2
HS1
Figure 3. Pin Connections
Table 1. Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 16.
Die
Pin
Pin Name
Formal Name
Definition
These pins are special function, bidirectional I/O port pins, that are
shared with other functional modules in the MCU.
MCU
1
2
6
PTB7/AD7/TBCH1
PTB6/AD6/TBCH0
PTB5/AD5
Port B I/Os
7
PTB4/AD4
8
PTB3/AD3
11
PTB1/AD1
These pins are special function, bidirectional I/O port pins, that are
shared with other functional modules in the MCU.
MCU
3
4
5
PTC4/OSC1
PTC3/OSC2
PTC2/MCLK
Port C I/Os
This pin is an asynchronous external interrupt input pin.
MCU
MCU
MCU
—
9
IRQ
External Interrupt
Input
This pin is bidirectional, allowing a reset of the entire system. It is driven
low when any internal reset source is asserted.
10
RST
External Reset
These pins are special function, bidirectional I/O port pins, that are
shared with other functional modules in the MCU.
12
13
PTD0/TACH0
PTD1/TACH1
Port D I/Os
Not connected.
14, 15, 16,
20, 21, 22,
32, 41
NC
No Connect
This pin is a special function, bidirectional I/O port pin, that can is shared
with other functional modules in the MCU.
MCU
42
PTE1/RXD
Port E I/O
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
3
CONNECTIONS
Table 1. Pin Definitions (continued)
A functional description of each pin can be found in the Functional Pin Description section beginning on page 16.
Die
Pin
Pin Name
Formal Name
Definition
These pins are the reference voltage pins for the analog-to-digital
converter (ADC).
MCU
43
48
VREFL
VREFH
ADC References
These pins are the power supply pins for the analog-to-digital converter.
MCU
MCU
MCU
44
47
VSSA
VDDA
ADC Supply Pins
These pins are the ground and power supply pins, respectively. The
MCU operates from a single power supply.
45
46
EVSS
EVDD
MCU Power Supply
Pins
These pins are special function, bidirectional I/O port pins that are
shared with other functional modules in the MCU.
49
50
52
53
54
PTA4/KBD4
PTA3/KBD3
PTA2/KBD2
PTA1/KBD1
PTA0/KBD0
Port A I/Os
For test purposes only. Do not connect in the application.
MCU
51
17
FLSVPP
PWMIN
Test Pin
This pin allows the enabling and PWM control of the high side HS1 and
HS2 pins.
Analog
Direct High Side
Control Input
This pin is the reset output pin of the analog die.
Analog
Analog
18
19
RST_A
IRQ_A
Internal Reset Output
This pin is the interrupt output pin of the analog die indicating errors or
wake-up events.
Internal Interrupt
Output
These pins are the wake-up inputs of the analog chip.
Analog
Analog
23
24
L1
L2
Wake-Up Inputs
These output pins are low R
high side switches.
25
26
27
HS3
HS2
HS1
High Side Output
DS(ON)
These pins are device power supply pins.
Analog
31
28
VSUP1
VSUP2
Power Supply Pins
This pin represents the single-wire bus transmitter and receiver.
These pins are device power ground connections.
Analog
Analog
29
LIN
LIN Bus
30
34
GND
AGND
Power Ground Pins
The +5.0 V voltage regulator output pin is intended to supply the
embedded microcontroller.
Analog
Analog
33
35
36
VDD
VCC
OUT
Voltage Regulator
Output
This pin is the single +5.0 V power supply for the current sense
operational amplifier.
Amplifier Power
Supply
This pin is the output of the current sense operational amplifier.
Analog
Analog
Amplifier Output
Amplifier Inputs
These pins are the current sense operational amplifier inverted and
non-inverted inputs.
37
38
-E
+E
This input pin is for configuration of the watchdog period and allows the
disabling of the watchdog.
Analog
Analog
39
WDCONF
Window
Watchdog
Configuration Pin
This pin is the output of LIN transceiver.
40
RXD
LIN Transceiver
Output
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
4
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 2. Maximum Ratings
All voltages are with respect to ground unless otherwise noted. Exceeding limits on any pin may cause permanent damage to
the device.
Rating
Symbol
Value
Unit
ELECTRICAL RATINGS
Supply Voltage
V
Analog Chip Supply Voltage under Normal Operation (Steady-state)
Analog Chip Supply Voltage under Transient Conditions
MCU Chip Supply Voltage
V
-0.3 to 27
-0.3 to 40
-0.3 to 5.5
SUP(SS)
V
SUP(PK)
VDD
Input Pin Voltage
Analog Chip
V
V
-0.3 to V +0.3
DD
IN(ANALOG)
Microcontroller Chip
V
V
-0.3 to V +0.3
SS DD
IN(MCU)
Maximum Microcontroller Current per Pin
All Pins except VDD, VSS, PTA0:PTA6, PTC0:PTC1
PTA0:PTA6, PTC0:PTC1 Pins
mA
I
I
±15
±25
PIN(1)
PIN(2)
Maximum Microcontroller VSS Output Current
Maximum Microcontroller VDD Input Current
I
100
100
mA
mA
MVSS
MVDD
I
Current Sense Operational Amplifier
Maximum Input Voltage, +E, -E Pins
Maximum Input Current, +E, -E Pins
Maximum Output Voltage, OUT Pin
Maximum Output Current, OUT Pin
V
-0.3 to 7.0
±20
V
mA
V
+E-E
I
+E-E
V
-0.3 to V +0.3
CC
OUT
I
±20
mA
OUT
LIN Supply Voltage
V
V
V
Normal Operation (Steady-state)
V
-18 to 40
BUS(SS)
Transient Input Voltage (per ISO7637 Specification) and with
External Components (Figure 4, page 13)
V
-150 to 100
BUS(PK)
L1 and L2 Pin Voltage
Normal Operation with a 33 kΩ resistor (Steady-state)
V
-18 to 40
WAKE(SS)
WAKE(PK)
Transient Input Voltage (per ISO7637 Specification) and with
External Components (Figure 4, page 13)
V
-100 to 100
ESD Voltage
Human Body Model (1)
Machine Model (1)
Charge Device Model (1)
V
±2000
±100
ESD1
V
V
ESD2
ESD3
±500
Notes
1. ESD1 testing is performed in accordance with the Human Body Model (CZAP =100 pF, RZAP = 1500 Ω), the Machine Model (CZAP
=
200 pF, RZAP = 0 Ω), and the Charge Device Model, Robotic (C
=4.0 pF).
ZAP
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
5
CTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 2. Maximum Ratings (continued)
All voltages are with respect to ground unless otherwise noted. Exceeding limits on any pin may cause permanent damage to
the device.
Rating
Symbol
Value
Unit
THERMAL RATINGS
Package Operating Ambient Temperature (4)
T
°C
A
MM908E624ACPEW
MM908E624AYPEW
-40 to 85
-40 to 125
Operating Junction Temperature (2)(4)
T
°C
J
-40 to 125
-40 to 125
MM908E624ACPEW
MM908E624AYPEW
Storage Temperature
T
-40 to 150
Note 5
°C
STG
Peak Package Reflow Temperature During Reflow(3)(5)
TPPRT
°C
Notes
2. The temperature of analog and MCU die is strongly linked via the package, but can differ in dynamic load conditions, usually because
of higher power dissipation of the analog die. The analog die junction temperature must not exceed 150°C under these conditions.
3. Pin soldering temperature is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
4. Independent of TA, device parametrics are only guaranteed for -40 < TJ < 125 °C. Please see note 2. TJ is a factor of power dissipation,
package thermal resistance, and available heat sinking.
5. Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow
Temperature and Moisture Sensitivity Levels (MSL), Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes
and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
6
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics
All characteristics are for the analog chip only. Refer to the 68HC908EY16 data sheet for characteristics of the microcontroller
chip. Characteristics noted under conditions 9.0 V ≤ VSUP ≤ 16 V, -40 °C ≤ TJ ≤ 125 °C, unless otherwise noted. Typical values
noted reflect the approximate parameter mean at TA = 25°C under nominal conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
SUPPLY VOLTAGE RANGE
Nominal Operating Voltage
V
5.5
—
—
—
18
27
V
V
SUP
Functional Operating Voltage (6)
SUPPLY CURRENT RANGE
Normal Mode (7)
V
SUPOP
V
= 13.5 V, Analog Chip in Normal Mode, MCU Operating Using
SUP
Internal Oscillator at 32 MHz (8.0 MHz Bus Frequency), SPI, ESCI, ADC
Enabled
I
—
—
—
20
60
35
—
75
45
mA
μA
μA
RUN
,
(8)
Stop Mode (7)
V
= 13.5 V, LIN in recessive state
I
SUP
STOP
,
(8)
Sleep Mode (7)
V
= 13.5 V, LIN in recessive state
I
SUP
SLEEP
DIGITAL INTERFACE RATINGS (ANALOG DIE)
Output Pin RST_A
Low-state Output Voltage (IOUT = -1.5 mA)
High-state Output Current (VOUT > 3.5 V)
Pull-down Current Limitation
VOL
IOH
—
—
—
250
—
0.4
—
V
μA
mA
IOL_MAX
-1.5
-8.0
Output Pin IRQ_A
V
Low-state Output Voltage (IOUT = -1.5 mA)
High-state Output Voltage (IOUT = 250 μA)
VOL
VOH
—
—
—
0.4
—
3.85
Output Pin RXD
Low-state Output Voltage (IOUT = -1.5 mA)
High-state Output Voltage (IOUT = 250 μA)
VOL
VOH
CIN
—
3.85
—
—
—
0.4
—
V
V
Capacitance (9)
4.0
—
pF
Input Pin PWMIN
Input Logic Low Voltage
Input Logic High Voltage
Input Current
VIL
VIH
IIN
—
3.5
-10
—
—
—
1.5
—
V
V
—
10
—
μA
pF
Capacitance (9)
Pin TXD, SS–Pull-up Current
Notes
CIN
4.0
I
—
40
—
μA
PU
6. Device is fully functional. All functions are operating. Over-temperature may occur.
7. Total current (I + I ) measured at GND pin.
VSUP1
VSUP2
8. Stop and Sleep mode current will increase if VSUP exceeds 15 V.
9. This parameter is guaranteed by process monitoring but is not production tested.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
7
CTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics (continued)
All characteristics are for the analog chip only. Refer to the 68HC908EY16 data sheet for characteristics of the microcontroller
chip. Characteristics noted under conditions 9.0 V ≤ VSUP ≤ 16 V, -40 °C ≤ TJ ≤ 125 °C, unless otherwise noted. Typical values
noted reflect the approximate parameter mean at TA = 25°C under nominal conditions, unless otherwise noted.
Characteristic
SYSTEM RESETS AND INTERRUPTS
Symbol
Min
Typ
Max
Unit
Low-voltage Reset (LVR)
Threshold
V
V
V
LVRON
3.6
4.0
4.4
Low-voltage Interrupt (LVI)
Threshold
V
5.7
—
6.0
1.0
6.6
—
LVI
Hysteresis
V
V
LVI_HYS
High-voltage Interrupt (HVI)
Threshold
V
18
—
19.25
220
20.5
—
V
HVI
Hysteresis
mV
HVI_HYS
VOLTAGE REGULATOR (10)
Normal Mode Output Voltage
V
V
DDRUN
2.0 mA < I
< 50 mA, 5.5 V < V
< 27 V
SUP
4.75
50
5.0
5.25
200
DD
Normal Mode Output Current Limitation (11)
I
110
mA
V
DDRUN
Dropout Voltage
V
DDDROP
V
SUP = 4.9 V, I
= 50 mA
—
0.1
0.2
DD
Stop Mode Output Voltage (12)
Stop Mode Regulator Current Limitation
Line Regulation
V
4.75
4.0
5.0
8.0
5.25
14
V
DDSTOP
DDSTOP
I
mA
mV
Normal Mode, 5.5 V < V
< 27 V, I = 10 mA
DD
V
—
—
20
10
150
100
SUP
LRRUN
Stop Mode, 5.5 V < V
< 27 V, I
= 2.0 mA
DD
V
SUP
LRSTOP
Load Regulation
Normal Mode, 1.0 mA < I < 50 mA, VSUP = 18 V
mV
V
—
—
40
40
150
150
DD
LRRUN
Stop Mode, 1.0 mA < I
< 5.0 mA, VSUP = 18 V
V
DD
LDSTOP
Over-temperature Prewarning (Junction) (13)
Thermal Shutdown Temperature (Junction) (13)
Temperature Threshold Difference
T
120
155
135
170
160
—
°C
°C
°C
PRE
T
SD
ΔT
T
SD- PRE
T
-T
20
30
45
SD PRE
Notes
10. Specification with external capacitor 2.0 μF< C < 10 μF and 200 mΩ ≤ ESR ≤ 10 Ω. Capacitor value up to 47 μF can be used.
11. Total VDD regulator current. A 5.0 mA current for current sense operational amplifier is included. Digital output supplied from VDD.
12. When switching from Normal to Stop mode or from Stop mode to Normal mode, the output voltage can vary within the output voltage
specification.
13. This parameter is guaranteed by process monitoring but not production tested
908E624
Analog Integrated Circuit Device Data
8
Freescale Semiconductor
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics (continued)
All characteristics are for the analog chip only. Refer to the 68HC908EY16 data sheet for characteristics of the microcontroller
chip. Characteristics noted under conditions 9.0 V ≤ VSUP ≤ 16 V, -40 °C ≤ TJ ≤ 125 °C, unless otherwise noted. Typical values
noted reflect the approximate parameter mean at TA = 25°C under nominal conditions, unless otherwise noted.
Characteristic
WINDOW WATCHDOG CONFIGURATION PIN (WDCONF)
External Resistor Range
Symbol
Min
Typ
Max
Unit
R
10
—
—
100
15
kΩ
EXT
Watchdog Period Accuracy with External Resistor
(Excluding Resistor Accuracy) (14)
WD
%
CACC
-15
LIN PHYSICAL LAYER
LIN Transceiver Output Voltage
V
Recessive State, TXD HIGH, I
= 1.0 μA
V
VSUP-1
—
—
—
—
OUT
LIN_REC
Dominant State, TXD LOW, 500 Ω External Pull-up Resistor
Normal Mode Pullup Resistor to VSUP
Stop, Sleep Mode Pull-up Current Source
Output Current Shutdown Threshold
V
1.4
LIN_DOM
R
20
—
50
30
2.0
75
60
—
kΩ
μA
mA
μA
PU
I
PU
I
150
OV-CUR
Leakage Current to GND
I
BUS
VSUP Disconnected, V
at 18 V
—
0.0
-1.0
1.0
3.0
—
10
20
BUS
Recessive State, 8.0 V ≤ V
≤ 18 V, 8.0 V≤ V
≤ 18 V, V
≥ V
BUS SUP
SUP
BUS
1.0
GND Disconnected, V
= V
, V
at -18 V
GND
SUP BUS
LIN Receiver
V
SUP
Receiver Threshold Dominant
Receiver Threshold Recessive
Receiver Threshold Center
Receiver Threshold Hysteresis
VBUS_DOM
VBUS_REC
VBUS_CNT
VBUS_HYS
—
0.6
—
—
0.4
—
0.475
—
0.5
—
0.525
0.175
HIGH SIDE OUTPUTS HS1 AND HS2
Switch On Resistance
R
Ω
DS(ON)
TJ = 25 °C, ILOAD = 150 mA, V
> 9.0 V
—
—
—
2.0
—
2.5
4.5
—
SUP
TJ = 125 °C, ILOAD = 150 mA, V
> 9.0 V
SUP
3.0
TJ = 125 °C, ILOAD = 120 mA, 5.5 V < V
> 9.0 V
SUP
Output Current Limit
I
300
155
—
—
—
—
600
190
10
mA
°C
μA
V
LIM
,
Over-temperature Shutdown (15)
Leakage Current
(16)
THSSD
I
LEAK
Output Clamp Voltage
V
CL
I
= -100 mA
-6.0
—
—
OUT
Notes
14. Watchdog timing period calculation formula: PWD = 0.991 REXT+0.648 (REXT in kΩ and PWD in ms).
*
15. This parameter is guaranteed by process monitoring but it is not production tested
16. When over-temperature occurs, switch is turned off and latched off. Flag is set in SPI.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
9
CTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics (continued)
All characteristics are for the analog chip only. Refer to the 68HC908EY16 data sheet for characteristics of the microcontroller
chip. Characteristics noted under conditions 9.0 V ≤ VSUP ≤ 16 V, -40 °C ≤ TJ ≤ 125 °C, unless otherwise noted. Typical values
noted reflect the approximate parameter mean at TA = 25°C under nominal conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
HIGH SIDE OUTPUT HS3
Switch On Resistance
R
Ω
DS(ON)
TJ = 25 °C, ILOAD = 50 m A, V
> 9.0 V
> 9.0 V
—
—
—
—
—
—
7.0
10
14
SUP
TJ = 125 °C, ILOAD = 50 mA, V
SUP
TJ = 125 °C, ILOAD = 30 mA, 5.5 V < V
> 9.0 V
SUP
Output Current Limitation
I
60
155
—
100
—
200
190
10
mA
°C
LIM
,
Over-temperature Shutdown (17)
Leakage Current
(18)
T
HSSD
LEAK
I
—
μA
CURRENT SENSE OPERATIONAL AMPLIFIER
Rail-to-Rail Input Voltage
V
-0.1
—
V
+0.1
CC
V
V
IMC
Output Voltage Range
Output Current ±1.0 mA
Output Current ±5.0 mA
V
V
0.1
0.3
—
—
V
V
-0.1
-0.3
OUT1
OUT2
CC
CC
Input Bias Current
Input Offset Current
Input Offset Voltage
L1 AND L2 INPUTS
Low Detection Threshold
I
—
—
—
—
250
nA
nA
B
I
-100
-25
100
25
O
V
mV
IO
V
V
V
THL
THH
HYS
5.5 V < V
6.0 V < V
< 6.0 V
< 18 V
< 27 V
2.0
2.5
2.7
2.5
3.0
3.2
3.0
3.5
3.7
SUP
SUP
SUP
18 V < V
High Detection Threshold
V
5.5 V < V
< 6.0 V
< 18 V
< 27 V
2.7
3.0
3.5
3.3
4.0
4.2
3.8
4.5
4.7
SUP
SUP
SUP
6.0 V < V
18 V < V
Hysteresis
V
V
5.5 V < V
< 27 V
0.5
-10
—
—
1.3
10
SUP
Input Current
-0.2 V < V < 40 V
I
μA
IN
IN
Notes
17. This parameter is guaranteed by process monitoring but it is not production tested
18. When over-temperature occurs, switch is turned off and latched off. Flag is set in SPI.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
10
ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics
All characteristics are for the analog chip only. Please refer to the 68HC908EY16 data sheet for characteristics of the
microcontroller chip. Characteristics noted under conditions 9.0 V ≤ VSUP ≤ 16 V, -40 °C ≤ TJ ≤ 125 °C, unless otherwise noted.
Typical values noted reflect the approximate parameter mean at TA = 25 °C under nominal conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
LIN PHYSICAL LAYER
,
(20)
Driver Characteristics for Normal Slew Rate (19)
Dominant Propagation Delay TXD to LIN
Dominant Propagation Delay TXD to LIN
Recessive Propagation Delay TXD to LIN
Recessive Propagation Delay TXD to LIN
tDOM-MIN
tDOM-MAX
tREC-MIN
tREC-MAX
DT1
—
—
—
—
—
—
—
—
50
50
50
50
—
11
μs
μs
μs
μs
μs
μs
—
—
Propagation Delay Symmetry: t
- t
-10.44
—
DOM-MIN REC-MAX
Propagation Delay Symmetry: t
- t
DT2
DOM-MAX REC-MIN
,
(21)
Driver Characteristics for Slow Slew Rate (19)
Dominant Propagation Delay TXD to LIN
Dominant Propagation Delay TXD to LIN
Recessive Propagation Delay TXD to LIN
Recessive Propagation Delay TXD to LIN
tDOM-MIN
tDOM-MAX
tREC-MIN
tREC-MAX
DT1S
—
—
—
—
—
—
—
—
100
100
100
100
—
μs
μs
μs
μs
μs
μs
—
—
Propagation Delay Symmetry: t
Propagation Delay Symmetry: t
- t
-22
—
DOM-MIN REC-MAX
- t
DT2S
23
DOM-MAX REC-MIN
Driver Characteristics for Fast Slew Rate
LIN High Slew Rate (Programming Mode)
Receiver Characteristics and Wake-Up Timings
Receiver Dominant Propagation Delay (22)
Receiver Recessive Propagation Delay (22)
Receiver Propagation Delay Symmetry
Bus Wake-up Deglitcher
SRFAST
—
15
—
V/μs
tRL
tRH
—
—
3.5
3.5
—
6.0
6.0
2.0
150
—
μs
μs
μs
μs
μs
tR-SYM
tPROPWL
tWAKE
-2.0
35
—
Bus Wake-up Event Reported (23)
—
20
Notes
19.
V
from 7.0 V to 18 V, bus load R0 and C0 1.0 nF/1.0 kΩ, 6.8 nF/660 Ω, 10 nF/500 Ω. Measurement thresholds: 50% of TXD signal
SUP
to LIN signal threshold defined at each parameter.
20. See Figure 6, page 14.
21. See Figure 7, page 14.
22. Measured between LIN signal threshold V or V and 50% of RXD signal.
IL
IH
23.
t
is typically 2 internal clock cycles after LIN rising edge detected. See Figure 8 and Figure 9, page 15. In Sleep mode the V
DD
WAKE
rise time is strongly dependent upon the decoupling capacitor at VDD pin.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
11
CTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics (continued)
All characteristics are for the analog chip only. Please refer to the 68HC908EY16 data sheet for characteristics of the
microcontroller chip. Characteristics noted under conditions 9.0 V ≤ VSUP ≤ 16 V, -40 °C ≤ TJ ≤ 125 °C, unless otherwise noted.
Typical values noted reflect the approximate parameter mean at TA = 25 °C under nominal conditions, unless otherwise noted.
Characteristic
LIN PHYSICAL LAYER (CONTINUED)
Symbol
Min
Typ
Max
Unit
Output Current Shutdown Delay
SPI INTERFACE TIMING
t
—
10
—
μs
OV-DELAY
SPI Operating Recommended Frequency
L1 AND L2 INPUTS
f
0.25
8.0
—
4.0
38
MHz
μs
SPIOP
Wake-up Filter Time (24)
t
t
20
WUF
PWD
WINDOW WATCHDOG CONFIGURATION PIN (WDCONF)
Watchdog Period
ms
External Resistor REXT = 10 kΩ (1%)
External Resistor REXT = 100 kΩ (1%)
Without External Resistor REXT (WDCONF Pin Open)
—
—
97
10.558
99.748
150
—
—
205
STATE MACHINE TIMING
Reset Low Level Duration after VDD High (28)
Interrupt Low Level Duration
t
0.65
7.0
97
1.0
10
1.35
13
ms
μs
ms
μs
μs
μs
RST
t
INT
NRTOUT
Normal Request Mode Timeout (28)
t
150
3.0
3.0
35
205
10
,
,
Delay Between SPI Command and HS1/HS2/HS3 Turn On (25)
Delay Between SPI Command and HS1/HS2/HS3 Turn Off (25)
(26)
(26)
tS-HSON
tS-HSOFF
tS-NR2N
—
—
10
Delay Between Normal Request and Normal Mode After W/D Trigger
Command (27)
6.0
70
Delay Between SS Wake-Up (SS LOW to HIGH) and Normal Request Mode
(VDD On and Reset High)
tW-SS
μs
μs
15
40
80
Delay Between SS Wake-Up (SS LOW to HIGH) and First Accepted SPI
Command
tW-SPI
90
30
15
—
—
—
N/A
N/A
—
Delay Between Interrupt Pulse and First SPI Command Accepted
Minimum Time Between Two Rising Edges on SS
Notes
tS-1STSPI
t2SS
μs
μs
24. This parameter is guaranteed by process monitoring but is not production tested.
25. Delay between turn-on or turn-off command and high side on or high side off, excluding rise or fall time due to external load.
26. Delay between the end of the SPI command (rising edge of the SS) and start of device activation/deactivation.
27. This parameter is guaranteed by process monitoring but it is not production tested.
28. Also see Figure 10 on page 15
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
12
ELECTRICAL CHARACTERISTICS
MICROCONTROLLER PARAMETRICS
Table 4. Dynamic Electrical Characteristics (continued)
All characteristics are for the analog chip only. Please refer to the 68HC908EY16 data sheet for characteristics of the
microcontroller chip. Characteristics noted under conditions 9.0 V ≤ VSUP ≤ 16 V, -40 °C ≤ TJ ≤ 125 °C, unless otherwise noted.
Typical values noted reflect the approximate parameter mean at TA = 25 °C under nominal conditions, unless otherwise noted.
Characteristic
CURRENT SENSE OPERATIONAL AMPLIFIER
Supply Voltage Rejection Ratio (29)
Common Mode Rejection Ratio (29)
Gain Bandwidth (29)
Symbol
Min
Typ
Max
Unit
SVR
CMR
GBP
SR
60
70
1.0
0.5
40
—
—
—
—
—
—
85
—
—
—
—
—
—
dB
dB
MHz
V/μs
°
Slew Rate
Phase Margin (for Gain = 1, Load 100 pF/ 5.0 kΩ (29)
Open Loop Gain
PHMO
OLG
dB
Notes
29. This parameter is guaranteed by process monitoring but it is not production tested.
MICROCONTROLLER PARAMETRICS
Table 5. Microcontroller
For a detailed microcontroller description, refer to the MC68HC908EY16 data sheet.
Module
Description
Core
Timer
Flash
RAM
ADC
SPI
High-Performance HC08 Core with a Maximum Internal Bus Frequency of 8.0 MHz
Two 16-Bit Timers with 2 Channels (TIM A and TIM B)
16 K Bytes
512 Bytes
10-Bit Analog-to-Digital Converter
SPI Module
ESCI
Standard Serial Communication Interface (SCI) Module
Bit-Time Measurement
Arbitration
Prescaler with Fine Baud-Rate Adjustment
ICG
Internal Clock Generation Module
TIMING DIAGRAMS
Transient Pulse
LIN, L1, and L2
Generator
10 kΩ
1.0 nF
Note Waveform in accordance with ISO7637 Part 1, Test Pulses 1, 2, 3a, and 3b.
Figure 4. Test Circuit for Transient Test Pulses
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
13
CTRICAL CHARACTERISTICS
TIMING DIAGRAMS
VSUP
R0
C0
TXD
RXD
R0 and C0 Combinations:
LIN
‚Ä¢ 1.0 kΩ and 1.0
‚Ä¢ 600 Ω and 6.8
‚Ä¢ 500 Ω and 10
Figure 5. Test Circuit for LIN Timing Measurements
TXD
LIN
tREC-MAX
tDOM-MIN
58.1% VSUP
40% VSUP
74.4% VSUP
VLIN_REC
60% VSUP
28.4% VSUP
42.2% VSUP
tDOM-MAX
tREC-MIN
RXD
tRL
tRH
Figure 6. LIN Timing Measurements for Normal Slew Rate
TXD
tREC-MAX
LIN
tDOM-MIN
VLIN_REC
61.6% VSUP
40% Vsup
77.8% VSUP
60% VSUP
25.1% VSUP
38.9% VSUP
tDOM-MAX
tREC-MIN
RXD
tRL
tRH
Figure 7. LIN Timing Measurements for Slow Slew Rate
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
14
ELECTRICAL CHARACTERISTICS
TIMING DIAGRAMS
LIN
VLIN_REC
0.4 VSUP
l
Dominant Level
VDD
t
t
WAKE
PROPWL
L
Figure 8. Wake-up Sleep Mode Timing
LIN
VLIN_REC
P
0.4 VSUP
Dominant Level
IRQ_A
t
t
WAKE
PROPWL
Figure 9. Wake-up Stop Mode Timing
VSUP
VDD
RST_A
tRST
tNRTOUT
Figure 10. Power On Reset and Normal Request Timeout Timing
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
15
CTIONAL DESCRIPTION
INTRODUCTION
FUNCTIONAL DESCRIPTION
INTRODUCTION
The 908E624 was designed and developed as a highly
integrated and cost-effective solution for automotive and
industrial applications. For automotive body electronics, the
908E624 is well suited to perform relay control in applications
like window lift, sunroof, etc., via a three-wire LIN bus.
high side outputs. Other ports are also provided, which
include a current sense operational amplifier port and two
wake-up pins. An internal voltage regulator provides power to
the MCU chip.
Also included in this device is a LIN physical layer, which
communicates using a single wire. This enables this device
to be compatible with three-wire bus systems, where one wire
is used for communication, one for battery, and one for
ground.
The device combines an HC908EY16 MCU core with flash
memory together with a SmartMOS IC chip. The SmartMOS
IC chip combines power and control in one chip. Power
switches are provided on the SmartMOS IC configured as
FUNCTIONAL PIN DESCRIPTION
See Figure 1, 908E624 Simplified Application Diagram,
page 1, for a graphic representation of the various pins
referred to in the following paragraphs. Also, see the pin
diagram on page 3 for a depiction of the pin locations on the
package.
For details, refer to the 68HC908EY16 data sheet.
PORT E I/O PIN (PTE1)
PTE1/RXD and PTE0/TXD are special function,
bidirectional I/O port pins that can also be programmed to be
enhanced serial communication.
PORT A I/O PINS (PTA0:4)
PTE0/TXD is internally connected to the TXD pin of the
analog die. The connection for the receiver must be done
externally.
These pins are special function, bidirectional I/O port pins
that are shared with other functional modules in the MCU.
PTA0:PTA4 are shared with the keyboard interrupt pins
KBD0:KBD4.
For details, refer to the 68HC908EY16 data sheet.
The PTA5/SPSCK pin is not accessible in this device and
is internally connected to the SPI clock pin of the analog die.
The PTA6/SS pin is likewise not accessible.
EXTERNAL INTERRUPT PIN (IRQ)
The IRQ pin is an asynchronous external interrupt pin. This
pin contains an internal pull-up resistor that is always
activated, even when the IRQ pin is pulled LOW.
For details, refer to the 68HC908EY16 data sheet.
For details, refer to the 68HC908EY16 data sheet.
PORT B I/O PINS (PTB1:7)
These pins are special function, bidirectional I/O port pins
that are shared with other functional modules in the MCU. All
pins are shared with the ADC module. The PTB6:PTB7 pins
are also shared with the Timer B module.
EXTERNAL RESET PIN (RST)
A logic [0] on the RST pin forces the MCU to a known
startup state. It is driven LOW when any internal reset source
is asserted.
The PTB0/AD0 and PTB2/AD2 pins are not accessible in
this device.
This pin contains an internal pull-up resistor that is always
activated, even when the reset pin is pulled LOW.
For details, refer to the 68HC908EY16 data sheet.
Important To ensure proper operation, do not add any
external pull-up resistor.
PORT C I/O PINS (PTC2:4)
For details, refer to the 68HC908EY16 data sheet.
These pins are special function, bidirectional I/O port pins
that are shared with other functional modules in the MCU. For
example, PTC2:PTC4 are shared with the ICG module.
MCU POWER SUPPLY PINS (EVDD AND EVSS)
PTC0/MISO and PTC1/MOSI are not accessible in this
device and are internally connected to the MISO and MOSI
SPI pins of the analog die.
EVDD and EVSS are the power supply and ground pins,
respectively. The MCU operates from a single power supply.
Fast signal transitions on MCU pins place high, short
duration current demands on the power supply. To prevent
noise problems, take special care to provide power supply
bypassing at the MCU.
For details, refer to the 68HC908EY16 data sheet.
PORT D I/O PINS (PTD:0:1)
For details, refer to the 68HC908EY16 data sheet.
PTD1/TACH1 and PTD0/TACH0/BEMF are special
function, bidirectional I/O port pins that can also be
programmed to be timer pins.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
16
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
the watchdog period. If the pin is open, the watchdog period
is fixed to its default value.
ADC SUPPLY PINS (VDDA AND VSSA)
VDDA and VSSA are the power supply pins for the analog-
to-digital converter (ADC). It is recommended that a high-
quality ceramic decoupling capacitor be placed between
these pins.
The watchdog can be disabled (e.g., for flash
programming or software debugging) by connecting this pin
to GND.
Important VDDA is the supply for the ADC and should be
tied to the same potential as EVDD via separate traces.
VSSA is the ground pin for the ADC and should be tied to the
same potential as EVSS via separate traces.
POWER SUPPLY PINS (VSUP1AND VSUP2)
This VSUP1 power supply pin supplies the voltage
regulator, the internal logic, and LIN transceiver.
For details, refer to the 68HC908EY16 data sheet.
This VSUP2 power supply pin is the positive supply for the
high side switches.
ADC REFERENCE PINS (VREFL AND VREFH)
POWER GROUND PIN (GND)
VREFL and VREFH are the reference voltage pins for the
ADC. It is recommended that a high quality ceramic
decoupling capacitor be placed between these pins.
This pin is the device ground connection.
Important VREFH is the high reference supply for the
ADC and should be tied to the same potential as VDDA via
separate traces. VREFL is the low reference supply for the
ADC and should be tied to the same potential as VSSA via
separate traces.
HIGH SIDE OUTPUT PINS (HS1 AND HS2)
These pins are high side switch outputs to drive loads such
as relays or lamps. Each switch is protected with over-
temperature and current limit (over-current). The output has
an internal clamp circuitry for inductive load. The HS1 and
HS2 outputs are controlled by the SPI and have a direct
enabled input (PWMIN) for PWM capability.
For details, refer to the 68HC908EY16 data sheet.
TEST PIN (FLSVPP)
HIGH SIDE OUTPUT PIN (HS3)
This pin is for test purposes only. Do not connect in the
application or connect to GND.
This high side switch can be used to drive small lamps,
Hall-effect sensors, or switch pull-up resistors. The switch is
protected with over-temperature and current limit (over-
current). The output is controlled only by the SPI.
PWMIN PIN (PWMIN)
This pin is the direct PWM input for high side outputs 1 and
2 (HS1 and HS2). If no PWM control is required, PWMIN
must be connected to VDD to enable the HS1 and HS2
outputs.
LIN BUS PIN (LIN)
The LIN pin represents the single-wire bus transmitter and
receiver. It is suited for automotive bus systems and is based
on the LIN bus specification.
LIN TRANSCEIVER OUTPUT PIN (RXD)
This pin is the output of LIN transceiver. The pin must be
connected to the microcontroller’s Enhanced Serial
Communications Interface (ESCI) module (RXD pin).
WAKE-UP PINS (L1 AND L2)
These pins are high-voltage capable inputs used to sense
external switches and to wake-up the device from Sleep or
Stop mode. During Normal mode the state of these pins can
be read through the SPI.
RESET PIN (RST_A)
RST_A is the reset output pin of the analog die and must
be connected to the RST pin of the MCU.
Important If unused, these pins should be connected to
VSUP or GND to avoid parasitic transitions. In Low Power
Mode, this could lead to random wake-up events.
Important To ensure proper operation, do not add any
external pull-up resistor.
CURRENT SENSE OPERATIONAL AMPLIFIER
PINS (E+, E-, OUT, VCC)
INTERRUPT PIN (IRQ_A)
IRQ_A is the interrupt output pin of the analog die
indicating errors or wake-up events. This pin must be
connected to the IRQ pin of the MCU.
These are the pins of the single supply current sense
operational amplifier.
•
The E+ and E- input pins are the non-inverting and
inverting inputs of the current sense operational
amplifier, respectively.
WINDOW WATCHDOG CONFIGURATION PIN
(WDCONF)
This pin is the configuration pin for the internal watchdog.
A resistor is connected to this pin. The resistor value defines
•
•
The OUT pin is the output pin of the current sense
operational amplifier.
The VCC pin is the +5.0 V single supply connection.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
17
CTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
Note If the operational amplifier is not used, it is possible
to connect all pins (E+, E-, OUT and VCC) to GND. In this
case, all of the four pins must be grounded.
VOLTAGE REGULATOR AND CURRENT SENSE
AMPLIFIER GROUND PIN (AGND)
The AGND pin is the ground pin of the voltage regulator
and the current sense operational amplifier.
+5.0 V VOLTAGE REGULATOR OUTPUT PIN (VDD)
Important GND, AGND, VSS, EVSS, VSSA, and VREFL
The VDD pin is needed to place an external capacitor to
stabilize the regulated output voltage. The VDD pin is
intended to supply the embedded microcontroller. The pin is
protected against shorts to GND with an integrated current
limit (temperature shutdown could occur).
pins must be connected together.
NO CONNECT PINS (NC)
The NC pins are not connected internally.
Note Each of the NC pins can be left open or connected
to ground (recommended).
Important The VDD, EVDD, VDDA, and VREFH pins
must be connected together.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
18
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Wake-up from Stop mode is initiated by a wake-up
interrupt. Wake-up from Sleep mode is done by a reset and
the voltage regulator is turned back on.
908E624 ANALOG DIE MODES OF OPERATION
The 908E624 offers three operating modes: Normal (Run),
Stop, and Sleep. In Normal mode the device is active and is
operating under normal application conditions. The Stop and
Sleep modes are low-power modes with wake-up
capabilities.
The selection of the different modes is controlled by the
MODE1:2 bits in the SPI Control register.
Figure 11 describes how transitions are done between the
different operating modes and Table 6, page 20, gives an
overview of the operating mode.
In Stop mode, the voltage regulator still supplies the MCU
with V (limited current capability), and in Sleep mode the
DD
voltage regulator is turned off (V = 0 V).
DD
Normal Request Timeout Expired (tNRTOUT
)
V
Low
DD
VDD High and
Power Up
Reset Delay (t
) Expired
RST
Power
Normal
Reset
Down
Request
VDD Low
Normal
WD Failed
VDDLOW(>tN
T) Expired
R
T
O
U
andLVF = 0
Sleep Command
Wake-up(Reset)
Sleep
Stop
VLow
DD
Legend
WD: Watchdog
WD Disabled: Watchdog disabled (WDCONF pin connected to GND)
WD Trigger: Watchdog is triggered by SPI command
WD Failed: No watchdog trigger or trigger occurs in closed window
Stop Command: Stop command sent via SPI
Sleep Command: Sleep command sent via SPI
Wake-up: L1 or L2 state change or LIN bus wake-up or SS rising edge
Figure 11. Operating Modes and Transitions
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
19
CTIONAL DEVICE OPERATION
OPERATIONAL MODES
Table 6. Operating Modes Overview
Device
Mode
Wake-up
Capabilities
Watchdog
Function
HS1, HS2,
and HS3
Sense
Amplifier
RST_A
Output
Voltage Regulator
DD ON
LIN Interface
Reset
V
N/A
LOW
HIGH
Disabled
Disabled
Enabled
Recessive only
Not active
Not active
Normal
Request
VDD ON
N/A
150 ms time out if
WD enabled
Transmit and
receive
Normal
(Run)
VDD ON
N/A
HIGH
HIGH
Window WD if
enabled
Enabled
Disabled
Transmit and
receive
Active
Stop
VDD ON with limited
current capability
LIN wake-up,
L1, L2 state change,
SS rising edge
Disabled
Recessive state with Not active
wake-up capability
Sleep
V
DD OFF
LIN wake-up
L1, L2 state change
LOW
Disabled
Disabled
Recessive state with Not active
wake-up capability
INTERRUPTS
Wake-up Interrupts
In Normal (Run) mode the 908E624 has four different
interrupt sources. An interrupt pulse on the IRQ_A pin is
generated to report a fault to the MCU. All interrupts are not
maskable and cannot be disabled.
In Stop mode the IRQ_A pin reports wake-up events on the
L1, L2, or the LIN bus to the MCU. All wake-up interrupts are
not maskable and cannot be disabled.
After a wake-up interrupt, the INTSRC bit in the Serial
Peripheral Interface (SPI) Status register is set, indicating the
source of the event. This wake-up source information is only
transferred once, and the INTSRC bit is cleared
automatically.
After an Interrupt the INTSRC bit in the SPI Status register
is set, indicating the source of the event. This interrupt source
information is only transferred once, and the INTSRC bit is
cleared automatically.
Figure 12, page 21, describes the Stop/Wake-up
procedure.
Low-Voltage Interrupt
Low-voltage interrupt (LVI) is related to external supply
voltage VSUP1. If this voltage falls below the LVI threshold,
it will set the LVF bit in the SPI Status register and an interrupt
will be initiated. The LVF bit remains set as long as the Low-
voltage condition is present.
Voltage Regulator Temperature Prewarning (VDDT)
Voltage regulator temperature prewarning (VDDT) is
generated if the voltage regulator temperature is above the
T
threshold. It will set the VDDT bit in the SPI Status
PRE
During Sleep and Stop mode the low-voltage interrupt
circuitry is disabled.
register and an interrupt will be initiated. The VDDT bit
remains set as long as the error condition is present.
During Sleep and Stop mode the voltage regulator
temperature prewarning circuitry is disabled.
High-voltage Interrupt
High-voltage interrupt (HVI) is related to external supply
voltage VSUP1. If this voltage rises above the HVI threshold,
it will set the HVF bit in the SPI Status register and an
interrupt will be initiated. The HVF bit remains set as long as
the high-voltage condition is present.
High Side Switch Thermal Shutdown (HSST)
The high side switch thermal shutdown HSST is generated
if one of the high side switches HS1:HS3 is above the HSST
threshold, it will shutdown all high side switches, set the
HSST flag in the SPI Status register and an interrupt will be
initiated. The HSST bit remains set as long as the error
condition is present.
During Sleep and Stop mode the high-voltage interrupt
circuitry is disabled.
During Sleep and Stop mode the high side switch thermal
shutdown circuitry is disabled.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
20
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
MCU
Power Die
From Reset
initialize
operate
SPI:
2x STOP
Command
Switch to VREG
low current mode
STOP
Wake-up on
LIN or L1, L2?
IRQ
interrupt
?
Assert IRQ
SPI: reason for
interrupt
Switch to VREG
high current mode
operate
Figure 12. Stop Mode/Wake-up Procedure
If no PWM control is required, PWMIN must be connected
to the VDD pin.
ANALOG DIE INPUTS/OUTPUTS
High Side Output Pins HS1 and HS2
Current Limit (Over-current) Protection
These are two high side switches used to drive loads such
as relays or lamps. They are protected with over-temperature
and current limit (over-current) and include an active internal
clamp circuitry for inductive load drive. Control is done using
the SPI Control register. PWM capability is offered through
the PWMIN input pin.
These high side switches feature current limit to protect
them against over-current and short circuit conditions.
Over-temperature Protection
If an over-temperature condition occurs on any of the three
high side switches, all high side switches (HS1, HS2, and
HS3) are turned off and latched off. The failure is reported by
the HSST bit in the SPI Control register.
The high side switch is turned on if both the HSxON bit in
the SPI Control register is set and the PWMIN input is HIGH
(refer to Figure 13, page 22). In order to have HS1 on, the
PWMIN must be HIGH and bit HS1ON must be set. The
same applies to the HS2 output.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
21
CTIONAL DEVICE OPERATION
OPERATIONAL MODES
Sleep and Stop Mode
Current Limit (Over-current) Protection
In Sleep and Stop modes the high sides are disabled.
This high side feature switch feature current limit to protect
it against over-current and short-circuit conditions.
High Side Output HS3
Over-temperature Protection
This high side switch can be used to drive small lamps,
Hall-effect sensors, or switch pull-up resistors. Control is
done using the SPI Control register. No direct PWM control is
possible on this pin (refer to Figure 14, page 22).
If an over-temperature condition occurs on any of the three
high side switches, all high side switches (HS1, HS2, and
HS3) are turned off and latched off. The failure is reported by
the HSST bit in the SPI Control register.
Sleep and Stop Mode
In Sleep and Stop mode the high side is disabled.
.
PWMIN
VSUP2
MODE1:2
On/Off
High Side Driver
Charge Pump,
HSxON
HSx
Control
Status
Current Limit Protection,
Over-temperature Protection
Figure 13. High Side HS1 and HS2 Circuitry
.
MODE1:2
VSUP2
On/Off
High Side Driver
Charge Pump,
HS3ON
Control
Status
Current Limit Protection,
Over-temperature Protection
HS3
Figure 14. High Side HS3 Circuitry
node. The fall time from dominant to recessive and the rise
time from recessive to dominant is controlled. The symmetry
between both slew rate controls is guaranteed.
LIN PHYSICAL LAYER
The LIN bus pin provides a physical layer for single-wire
communication in automotive applications. The LIN physical
layer is designed to meet the LIN physical layer specification.
The slew rate can be selected for optimized operation at
10 and 20 kBit/s as well as a fast baud rate for test and
programming. The slew rate can be adapted with the bits
LINSL2:1 in the SPI Control Register. The initial slew rate is
optimized for 20 kBit/s.
The LIN driver is a low side MOSFET with over-current
protection and thermal shutdown. An internal pull-up resistor
with a serial diode structure is integrated, so no external
pullup components are required for the application in a slave
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
22
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
The LIN pin offers high susceptibility immunity level from
external disturbance, guaranteeing communication during
external disturbance.
the transmitter and set the LINFAIL flag in the SPI Status
Register.
For improved performance and safe behavior in case of
LIN bus short to Ground or LIN bus leakage during low power
mode the internal pull-up resistor on the LIN pin can be
disconnected, with the LIN-PU bit in the SPI Control Register,
and a small current source keeps the LIN bus at recessive
level. In case of a LIN bus short to GND, this feature will
reduce the current consumption in STOP and SLEEP modes.
The LIN transmitter circuitry is enabled in Normal and
Normal Request mode.
An over-current condition (e.g. LIN bus short to V
) or a
BAT
over-temperature in the output low side FET will shutdown
MODE2:1
LINSL2:1
Control
LIN-PU
VSUP1
LINWU
2µA
LINFAIL
30k
LIN bus
TXD
Slope
Control
Wake-up
Filter
GND
RXD
Figure 15. LIN Interface
TXD Pin
STOP Mode and Wake-up Feature
The TXD pin is the MCU interface to control the state of the
LIN transmitter (see Figure 2, page 2). When TXD is LOW,
the LIN pin is low (dominant state). When TXD is HIGH, the
LIN output MOSFET is turned off (recessive state). The TXD
pin has an internal pull-up current source in order to set the
LIN bus to recessive state in the event, for instance, the
microcontroller could not control it during system power-up or
power-down.
During STOP mode operation the transmitter of the
physical layer is disabled. In case the bit LIN-PU was set in
the Stop mode sequence the internal pull-up resistor is
disconnected from VSUP and a small current source keeps
the LIN pin in recessive state. The receiver is still active and
able to detect wake-up events on the LIN bus line.
A dominant level longer than t
followed by an rising
PROPWL
edge will generate a wake-up interrupt and set the LINWF
flag in the SPI Status Register. Also see Figure 9, page 15.
RXD Pin
SLEEP Mode and Wake-up Feature
The RXD transceiver pin is the MCU interface, which
reports the state of the LIN bus voltage. LIN HIGH (recessive
state) is reported by a high level on RXD, LIN LOW (dominant
state) by a low level on RXD.
During SLEEP mode operation the transmitter of the
physical layer is disabled. In case the bit LIN-PU was set in
the Sleep mode sequence the internal pull-up resistor is
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
23
CTIONAL DEVICE OPERATION
OPERATIONAL MODES
disconnected from VSUP and a small current source keeps
the LIN pin in recessive state. The receiver is still active to be
able to detect wake-up events on the LIN bus line.
Current Limit (Over-current) Protection
The voltage regulator has current limit to protect the device
against over-current and short-circuit conditions.
A dominant level longer than t
followed by an rising
PROPWL
edge will generate a system wake-up (reset) and set the
LINWF flag in the SPI Status Register. Also see Figure 8,
page 15).
Over-temperature Protection
The voltage regulator also features an over-temperature
protection having an over-temperature warning (Interrupt -
VDDT) and an over-temperature shutdown.
WINDOW WATCHDOG
Stop Mode
The window watchdog is configurable using an external
resistor at the WDCONF pin. The watchdog is cleared
through by the MODE1:2 bits in the SPI Control register (refer
to Table 8, page 26).
During Stop mode, the Stop mode regulator supplies a
regulated output voltage. The Stop mode regulator has a
limited output current capability.
A watchdog clear is only allowed in the open window. If the
watchdog is cleared in the closed window or has not been
cleared at the end of the open window, the watchdog will
generate a reset on the RST_A pin and reset the whole
device.
Sleep Mode
In Sleep mode the voltage regulator external V is turned
off.
DD
Note The watchdog clear in Normal request mode
(150 ms) (first watchdog clear) has no window.
FACTORY TRIMMING AND CALIBRATION
To enhance the ease of use of the 908E624, various
parameters (e.g., ICG trim value) are stored in the flash
memory of the device. The following flash memory locations
are reserved for this purpose and might have a value different
from the “empty” (0xFF) state:
Window closed
Window open
no watchdog clear allowed
for watchdog clear
•
•
0xFD80:0xFDDF Trim and Calibration Values
0xFFFE:0xFFFF Reset Vector
In the event the application uses these parameters, one
has to take care not to erase or override these values. If these
parameters are not used, these flash locations can be erased
and otherwise used.
WD timing x 50%
WD timing x 50%
(t
WD period
WD timing selected by resistor on WDCONF terminal.
)
PWD
Trim Values
The usage of the trim values, located in the flash memory,
is explained in the following.
Figure 16. Window Watchdog Operation
Internal Clock Generator (ICG) Trim Value
Watchdog Configuration
The internal clock generator (ICG) module is used to
create a stable clock source for the microcontroller without
using any external components. The untrimmed frequency of
the low frequency base clock (IBASE), will vary as much as
±25%, due to process, temperature, and voltage
dependencies. To compensate for these dependencies, an
ICG trim value is located at the address $FDC2. After
trimming the ICG, a range of typ. ±2% (±3% max.) at nominal
If the WDCONF pin is left open, the default watchdog
period is selected (typ. 150 ms). If no watchdog function is
required, the WDCONF pin must be connected to GND.
The watchdog period is calculated using the following
formula:
t
[ms] = 0.991
R
[kΩ] + 0.648
PWD
EXT
*
conditions (filtered (100 nF) and stabilized (4.7 μF) V
=
DD
VOLTAGE REGULATOR
5.0 V, T
~23 °C) and will vary over-temperature and
Ambient
The 908E624 chip contains a low-power, low dropout
voltage regulator to provide internal power and external
power for the MCU. The on-chip regulator consist of two
elements, the main voltage regulator and the low-voltage
reset circuit.
voltage (V ) as indicated in the 68HC908EY16 data sheet.
DD
To trim the ICG, these values must be copied to the ICG
Trim Register ICGTR at address $38 of the MCU.
Important The value has to be copied after every reset.
The V regulator accepts an unregulated input supply
DD
OPERATING MODES OF THE MCU
and provides a regulated VDD supply to all digital sections of
the device. The output of the regulator is also connected to
the VDD pin to provide the 5.0 V to the microcontroller.
For a detailed description of the operating modes of the
MCU, refer to the MC68HC908EY16 data sheet.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
24
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
LOGIC COMMANDS AND REGISTERS
•
•
•
MOSI—Master-Out Slave-In
MISO—Master-In Slave-Out
SPSCK—Serial Clock
908E624 SPI INTERFACE AND CONFIGURATION
The serial peripheral interface creates the communication
link between the microcontroller and the analog die of the
908E624.
A complete data transfer via the SPI consists of 1 byte.
The master sends 8 bits of control information and the slave
replies with 8 bits of status data.
The interface consists of four pins (see Figure 17):
•
SS—Slave Select
SS
Register write data
D4 D3
D7
D6
D5
D2
D1
D0
MOSI
MISO
Register read data
D4 D3
D7
D6
D5
D2
D1
D0
SPSCK
Read data latch
Write data latch
Rising edge of SPSCK
Falling edge of SPSCK
Change MISO/MOSI Output
Sample MISO/MOSI Input
Figure 17. SPI Protocol
During the inactive phase of the SS (HIGH), the new data
transfer is prepared.
The data transfer is only valid if exactly 8 sample clock
edges are present in the active (low) phase of SS.
The falling edge of the SS indicates the start of a new data
transfer and puts the MISO in the low-impedance state and
latches the analog status data (Register read data).
The rising edge of the slave select SS indicates the end of
the transfer and latches the write data (MOSI) into the
register The SS high forces MISO to the high-impedance
state.
With the rising edge of the SPI clock, SPSCK the data is
moved to MISO/MOSI pins. With the falling edge of the SPI
clock SPSCK the data is sampled by the Receiver.
SPI REGISTER OVERVIEW
Table 7 summarizes the SPI Register bit meaning, reset
value, and bit reset condition.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
25
CTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
.
Table 7. SPI Register Overview
Bit
Read/Write
Information
D7
D6
D5
D4
D3
D2
D1
MODE2
L2
D0
MODE1
L1
Write
LINSL2
LINSL1
LIN-PU
HVF
HS3ON
HS2ON
VDDT
HS1ON
HSST
(30)
INTSRC
LINWU
or
LINFAIL
LVF
or
BATFAIL
Read
(31)
Write Reset Value
0
0
0
0
0
0
—
—
—
—
Write Reset Condition
POR,
POR,
POR
POR, RESET
POR,
POR,
RESET
RESET
RESET
RESET
Notes
30. D7 signals interrupts and wake-up interrupts, D6:D0 indicated the source.
31. The first SPI read after reset returns the BATFAIL flag state on bit D4.
SPI Control Register (Write)
reduce the power consumption, e.g. in combination with
STOP/SLEEP mode.
Table 8 shows the SPI Control register bits by name.
HS3ON:HS1ON—High Side H3:HS1 Enable Bits
Table 8. Control Bits Function (Write Operation)
These bits enable the HSx. Reset clears the HSxON bit.
D7
D6
D5
D4
D3
D2
D1
D0
•
•
1 = HSx switched on (refer to Note below).
0 = HSx switched off.
LINSL2 LINSL1 LIN-PU HS3ON HS2ON HS1ON MODE2 MODE1
Note If no PWM on HS1 and HS2 is required, the PWMIN
pin must be connected to the VDD pin.
LINSL2:1—LIN Baud Rate and Low-power Mode
Selection Bits
These bits select the LIN slew rate and requested low-
power mode in accordance with Table 9. Reset clears the
LINSL2:1 bits.
MODE2:1—Mode Section Bits
The MODE2:1 bits control the operating modes and the
watchdog in accordance with Table 10.
Table 9. LIN Baud Rate and Low-power Mode Selection
Bits
Table 10. Mode Selection Bits
MODE2
MODE1
Description
LINSL2
LINSL1
Description
(32)
0
0
1
1
0
1
0
1
Sleep Mode
Stop Mode
(32)
(33)
0
0
1
0
1
0
Baud Rate up to 20 kbps (normal)
Baud Rate up to 10 kbps (slow)
Watchdog Clear
Run (Normal) Mode
Fast Program Download
Baud Rate up to 100 kbps
Notes
32. To enter Sleep and Stop mode, a special sequence of SPI
commands is implemented.
1
1
Low-power Mode (Sleep or Stop) Request
33. The device stays in Run (Normal) mode.
LIN-PU—LIN Pull-up Enable Bit
To safely enter Sleep or Stop mode and to ensure that
these modes are not affected by noise issue during SPI
transmission, the Sleep/Stop commands require two SPI
transmissions.
This bit controls the LIN pull-up resistor during Sleep and
Stop modes.
•
•
1 = Pull-up disconnected in Sleep and Stop modes.
0 = Pull-up connected in Sleep and Stop modes.
Sleep Mode Sequence
If the Pull-up is disconnected, a small current source is
used to pull the LIN pin in recessive state. In case of an
erroneous short of the LIN bus to ground, this will significantly
The Sleep command, as shown in Table 11, must be sent
twice.
Table 11. Sleep Command Bits
LINSL2 LINSL1 LIN-PU HS3ON HS2ON HS1ON MODE2 MODE1
0/1
1
1
0
0
0
0
0
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
26
FUNCTIONAL DEVICE OPERATION
Stop Mode Sequence
The Stop command, as shown in Table 12, must be sent
twice.
Table 12. Stop Command Bits
LINSL2 LINSL1 LIN-PU HS3ON HS2ON HS1ON MODE2 MODE1
0/1
1
1
0
0
0
0
1
SPI Status Register (Read)
Table 13 shows the SPI Status register bits by name.
Table 13. Control Bits Function (Read Operation)
D7
D6
D5
D4
D3
D2
D1
L2
D0
L1
INTSRC LINWU
HVF
LVF
or
VDDT
HSST
or
LINFAIL
BATFAIL
INTSCR —Register Content Flags or Interrupt Source
•
•
1 = Low-voltage condition has occurred.
0 = No low-voltage condition.
This bit indicates if the register contents reflect the flags or
an interrupt/wake-up interrupt source.
VDDT—Voltage Regulator Status Flag Bit
•
•
1 = D6:D0 reflects the interrupt or wake-up source.
0 = No interrupt occurred. Other SPI bits report real time
status.
This flag is set as prewarning in case of an over-
temperature condition on the voltage regulator.
•
1 = Voltage regulator over-temperature condition,
prewarning.
LINWU/LINFAIL—LIN Status Flag Bit
•
0 = No over-temperature detected.
This bit indicates a LIN wake-up condition.
•
1 = LIN bus wake-up occurred or LIN over-current/over-
temperature occurred.
HSST—High Side Status Flag Bit
This flag is set on over-temperature conditions on one of
the high side outputs.
•
0 = No LIN bus wake-up occurred.
In case of a LIN over-current/over-temperature condition
the LIN transmitter is disabled. To reenable the LIN
transmitter, the error condition must be GONE and the
LINWU/LINFAIL flag must be cleared.
•
•
1 = HSx off due to over-temperature.
0 = No over-temperature.
In case one of the high sides has an over-temperature
condition all high side switches are disabled.
The flag is cleared by reading the flag when it is set (SPI
command).
To reenable the high side switches, the flags have to be
cleared, by reading the flag when it is set and by writing a one
to high side HSxON bit (two SPI commands are necessary).
HVF —High-voltage Flag Bit
This flag is set on an over-voltage (VSUP1) condition.
L2:L1— Wake-up Inputs L1, L2 Status Flag Bit
•
•
1 = High-voltage condition has occurred.
0 = no High-voltage condition.
These flags reflect the status of the L2 and L1 input pins
and indicate the wake-up source.
LVF/BATFAIL—Low-voltage Flag Bit
•
1 = L2:L1 input high or wake-up by L2:L1 (first register
read after wake-up indicated with INTSRC = 1).
0 = L2:L1 input low.
This flag is set on an under-voltage (VSUP1) condition.
•
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
27
CAL APPLICATIONS
TYPICAL APPLICATIONS
The programming is principally possible at two stages in
DEVELOPMENT SUPPORT
the manufacturing process — first on chip level, before the IC
is soldered onto a PCB board and second after the IC is
soldered onto the PCB board.
As the 908E624 has the MC68HC908EY16 MCU
embedded typically all the development tools available for
the MCU also apply for this device, however due to the fact
of the additional analog die circuitry and the nominal +12 V
supply voltage some additional items have to be considered:
Chip Level Programming
On Chip level the easiest way is to only power the MCU
with +5.0 V (see Figure 18) and not to provide the analog
chip with VSUP, in this setup all the analog pin should be left
open (e.g. VSUP[1:2]) and interconnections between MCU
and analog die have to be separated (e.g. IRQ - IRQ_A).
•
•
nominal 12 V rather than 5.0 or 3.0 V supply
high voltage V
but IRQ_A pin
might be applied not only to IRQ pin,
TST
•
MCU monitoring (Normal request timeout) has to be
disabled
This mode is well described in the MC68HC908EY16 data
sheet - section development support.
For a detailed information on the MCU related
development support see the MC68HC908EY16 data sheet -
section development support.
VSUP[1:2]
GND
VDD
AGND
+5V
VREFH
VDDA
EVDD
RST
RST_A
VDD
100nF
4.7µF
1
16
C1+
VCC
VTST
IRQ
VREFL
VSSA
EVSS
MM908E624
+
+
+
1µF
1µF
1µF
1µF
3
4
15
2
C1-
GND
V+
1µF
+
IRQ_A
C2+
6
V-
VDD
10k
9.8304MHz CLOCK
PTB4/AD4
+5V
MAX232
5
C2-
CLK
RS232
DB-9
+
PTC4/OSC1
PTA0/KBD0
10k
10k
10k
74HC125
PTA1/KBD1
PTB3/AD3
WDCONF
2
3
5
7
8
10
9
6
5
DATA
T2OUT
R2IN
T2IN
74HC125
4
R2OUT
3
2
1
Figure 18. Normal Monitor Mode Circuit (MCU only)
Of course it is also possible to supply the whole system
with VSUP (12 V) instead as described in Figure 19, page 29.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
28
TYPICAL APPLICATIONS
PCB Level Programming
system has to be powered up providing V
(see
SUP
Figure 19).
If the IC is soldered onto the PCB board, it is typically not
possible to separately power the MCU with +5.0 V, the whole
VDD
VSUP
VSUP[1:2]
GND
VDD
+
100nF
AGND
47µF
VREFH
VDDA
EVDD
RST
RST_A
VDD
100nF
4.7µF
1
16
C1+
VCC
VTST
IRQ
VREFL
VSSA
EVSS
MM908E624
+
+
+
1µF
1µF
1µF
1µF
2.2k
3
4
15
2
C1-
GND
V+
1µF
+
IRQ_A
C2+
6
V-
VDD
10k
9.8304MHz CLOCK
PTB4/AD4
VDD
MAX232
5
C2-
CLK
RS232
DB-9
+
PTC4/OSC1
PTA0/KBD0
10k
10k
10k
74HC125
PTA1/KBD1
PTB3/AD3
WDCONF
2
3
5
7
8
10
9
6
5
DATA
T2OUT
R2IN
T2IN
74HC125
4
R2OUT
3
2
1
Figure 19. Normal Monitor Mode Circuit
Table 14 summarizes the possible configurations and the
necessary setups.
Table 14. Monitor Mode Signal Requirements and Options
Serial
Communication
Mode
Selection
Communication Speed
Bus
Normal
Request
Timeout
Reset
Vector
Mode IRQ RST WDCONF
ICG
COP
External
Baud
Rate
PTA0
PTA1 PTB3 PTB4
Frequenc
y
Clock
Normal
Monitor
9.8304
MHz
2.4576
MHz
V
V
V
V
GND
GND
X
1
0
0
0
X
X
1
X
X
OFF
OFF
ON
disabled
disabled
disabled
enabled
disabled
disabled
disabled
enabled
9600
9600
TST
DD
DD
9.8304
MHz
2.4576
MHz
V
DD
Forced
Monitor
$FFFF
(blank)
1
Nominal
1.6 MHz
Nominal
6300
GND
—
—
not $FFFF
(not blank)
Nominal
1.6 MHz
Nominal
6300
User
V
R
EXT
X
X
ON
DD
DD
Notes
34. PTA0 must have a pull-up resistor to V in monitor mode.
DD
35. External clock is a 4.9152 MHz, 9.8304 MHz or 19.6608 MHz canned oscillator on OCS1.
36. Communication speed with external clock is depending on external clock value. Baud rate is bus frequency / 256.
37. X = don’t care.
38.
V
is a high voltage V + 3.5 V ≤ VTST ≤ V + 4.5 V.
TST DD DD
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
29
CAL APPLICATIONS
MCU Digital Supply Pins (EVDD and EVSS)
EMC/EMI RECOMMENDATIONS
This paragraph gives some device specific
Fast signal transitions on MCU pins place high, short
duration current demands on the power supply. To prevent
noise problems, take special care to provide power supply
bypassing at the MCU. It is recommended that a high quality
ceramic decoupling capacitor be placed between these pins.
recommendations to improve EMC/EMI performance.
Further generic design recommendations can be found on
the Freescale website: www.freescale.com.
VSUP Pins (VSUP1 and VSUP2)
MCU Analog Supply Pins (VREFH, VDDA, VREFL, and
VSSA)
Its recommended to place a high quality ceramic
decoupling capacitor close to the VSUP pins to improve
EMC/EMI behavior.
To avoid noise on the analog supply pins it is important to
take special care on the layout. The MCU digital and analog
supplies should be tied to the same potential via separate
traces and connected to the voltage regulator output.
LIN Pin
For DPI (Direct Power Injection) and ESD (Electro Static
Discharge) it is recommended to place a high quality ceramic
decoupling capacitor near the LIN pin. An additional varistor
will further increase the immunity against ESD. A ferrite in the
LIN line will suppress some of the noise induced.
Figure 20 and Figure 21 show the recommendations on
schematics and layout level and Table 15 indicates
recommended external components and layout
considerations.
Voltage Regulator Output Pins (VDD and AGND)
Use a high quality ceramic decoupling capacitor to
stabilize the regulated voltage.
D1
VSUP
VSUP1
VSUP2
VDD
+
C2
AGND
C1
VREFH
VDDA
EVDD
L1
LIN
LIN
V1
C5
C3
C4
VREFL
VSSA
EVSS
MM908E624
GND
Figure 20. EMC/EMI Recommendations
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
30
TYPICAL APPLICATIONS
1
54
53
2
3
52
4
51
5
50
6
49
7
VREFH 48
VDDA 47
EVDD 46
EVSS 45
VSSA 44
VREFL 43
42
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
41
908E624
40
39
38
37
Comment:
Terminal 32 NC - used for signal routing
36
35
C4
AGND 34
VDD 33
NC
32
VSUP1 31
GND 30
LIN
29
D1
VBAT
LIN
VSUP2 28
C5
L1
Figure 21. PCB Layout Recommendations
Table 15. Component Value Recommendation
.
Component
Recommended Value(39)
Comments / Signal routing
D1
C1
C2
C3
Reverse battery protection
Bulk Capacitor
100 nF, SMD Ceramic
100 nF, SMD Ceramic
Close (<5.0 mm) to VSUP1, VSUP2 pins with good ground return
Close (<3.0 mm) to digital supply pins (EVDD, EVSS) with good
ground return.
The positive analog (VREFH, VDDA) and the digital (EVDD) supply
should be connected right at the C3.
C4
C5
4.7 μF, SMD Ceramic or Low ESR
Bulk Capacitor
180 pF, SMD Ceramic
Close (<5.0 mm) to LIN pin.
Total Capacitance per LIN node has to be below 220 pF.
(C
= C
+ C5 + C
~ 10 pF + 180 pF + 15 pF)
TOTAL
LIN-PIN
VARISTOR
(40)
V1
Varistor Type TDK AVR-M1608C270MBAAB
SMD Ferrite Bead Type TDK MMZ2012Y202B
Optional (close to LIN connector)
Optional, (close to LIN connector)
(40)
L1
Notes
39. Freescale does not assume liability, endorse, or want components from external manufactures that are referenced in circuit drawings
or tables. While Freescale offers component recommendations in this configuration, it is the customer’s responsibility to validate their
application.
40. Components are recommended to improve EMC and ESD performance.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
31
KAGING
PACKAGING DIMENSIONS
PACKAGING
PACKAGING DIMENSIONS
Important For the most current revision of the package, visit www.freescale.com and do a keyword search on the
98ASA99294D drawing number below. Dimensions shown are provided for reference ONLY.
EW SUFFIX (Pb-FREE)
54-Pin SOIC WIDE BODY
98ASA99294D
ISSUE B
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
32
PACKAGING
PACKAGING DIMENSIONS
EW SUFFIX (Pb-FREE)
54-Pin SOIC WIDE BODY
98ASA99294D
ISSUE B
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
33
KAGING
PACKAGING DIMENSIONS
EW SUFFIX (Pb-FREE)
54-Pin SOIC WIDE BODY
98ASA99294D
ISSUE B
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
34
ADDITIONAL DOCUMENTATION
THERMAL ADDENDUM (REV 3.0)
ADDITIONAL DOCUMENTATION
908E624
THERMAL ADDENDUM (REV 3.0)
INTRODUCTION
This thermal addendum is provided as a supplement to the MM908E624
technical datasheet. The addendum provides thermal performance information
that may be critical in the design and development of system applications. All
electrical, application, and packaging information is provided in the datasheet.
54-Pin
SOICW
Packaging and Thermal Considerations
The MM908E624 is a dual die package. There are two heat sources in the
package independently heating with P and P . This results in two junction
1
2
temperatures, T and T , and a thermal resistance matrix with RθJAmn
.
J1
J2
For m, n = 1, RθJA11 is the thermal resistance from Junction 1 to the reference
temperature while only heat source 1 is heating with P .
1
EW (Pb-FREE) SUFFIX
98ASA99294D
For m = 1, n = 2, RθJA12 is the thermal resistance from Junction 1 to the
reference temperature while heat source 2 is heating with P . This applies to
RθJ21 and RθJ22, respectively.
54-Pin SOICW
2
Note For package dimensions, refer to
98ASA99294D.
RθJA11 RθJA12
RθJA21 RθJA22
T
T
P
P
J1
J2
1
2
.
=
The stated values are solely for a thermal performance comparison of one
package to another in a standardized environment. This methodology is not meant to and will not predict the performance of a
package in an application-specific environment. Stated values were obtained by measurement and simulation according to the
standards listed below
Standards
Table 16. Thermal Performance Comparison
1 = Power Chip, 2 = Logic Chip [°C/W]
Thermal
m = 1,
n = 1
m = 1, n = 2
m = 2, n = 1
m = 2,
n = 2
Resistance
(1)(2)
R
40
25
57
21
31
16
47
12
36
21
52
16
θJAmn
θJBmn
θJAmn
θJCmn
(2)(3)
(1)(4)
(5)
R
R
R
Notes:
1. Per JEDEC JESD51-2 at natural convection, still air
condition.
2. 2s2p thermal test board per JEDEC JESD51-7and
JESD51-5.
54 Terminal SOIC
0.65 mm Pitch
17.9 mm x 7.5 mm Body
3. Per JEDEC JESD51-8, with the board temperature on the
center trace near the power outputs.
4. Single layer thermal test board per JEDEC JESD51-3 and
JESD51-5.
5. Thermal resistance between the die junction and the
exposed pad, “infinite” heat sink attached to exposed pad.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
35
TIONAL DOCUMENTATION
THERMAL ADDENDUM (REV 3.0)
A
PTB7/AD7/TBCH1
PTB6/AD6/TBCH0
PTC4/OSC1
PTC3/OSC2
PTC2/MCLK
PTB5/AD5
PTB4/AD4
PTB3/AD3
IRQ
1
2
3
4
5
6
7
8
PTA0/KBD0
PTA1/KBD1
PTA2/KBD2
FLSVPP
PTA3/KBD3
PTA4/KBD4
VREFH
VDDA
EVDD
EVSS
VSSA
VREFL
PTE1/RXD
NC
RXD
WDCONF
+E
-E
OUT
VCC
AGND
VDD
NC
VSUP1
GND
LIN
VSUP2
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
9
RST
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
PTB1/AD1
PTD0/TACH0
PTD1/TACH1
NC
NC
NC
PWMIN
RST_A
IRQ_A
NC
NC
NC
L1
L2
HS3
HS2
HS1
908E624 Pin Connections
54-Pin SOICW
0.65 mm Pitch
17.9 mm x 7.5 mm Body
Figure 22. Surface Mount for SOIC Wide Body
Non-exposed Pad
Device on Thermal Test Board
Table 17. Thermal Resistance Performance
Material:
Single layer printed circuit board
1 = Power Chip, 2 = Logic Chip (°C/W)
FR4, 1.6 mm thickness
Pin
Resistance
Area A
(mm2)
Cu traces, 0.07 mm thickness
m = 1,
n = 1
m = 1, n = 2
m = 2, n = 1
m = 2,
n = 2
Outline:
80 mm x 100 mm board area,
including edge connector for thermal
testing
R
0
58
56
54
48
46
45
53
51
50
mn
θJA
300
600
Area A:
Cu heat-spreading areas on board
surface
Ambient Conditions: Natural convection, still air
RθJAmn is the thermal resistance between die junction and
ambient air.
This device is a dual die package. Index m indicates the
die that is heated. Index n refers to the number of the die
where the junction temperature is sensed.
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
36
ADDITIONAL DOCUMENTATION
THERMAL ADDENDUM (REV 3.0)
θJA
70
60
50
40
30
20
10
0
R
θ
JA11
R
R
x
θ
JA22
JA12 = R
θJA21
θ
0
300
600
Heat spreading area [mm²]
A
Figure 23. Device on Thermal Test Board
100
10
1
R
x
θ
JA11
JA22
R
θ
R
JA12 = R
θJA21
θ
0.1
1.00E-03 1.00E-02 1.00E-01 1.00E+00 1.00E+01 1.00E+02 1.00E+03 1.00E+04
Time[s]
Figure 24. Transient Thermal Resistance RθJA (1.0 W Step Response)
Device on Thermal Test Board Area A = 600 (mm2)
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
37
SION HISTORY
REVISION HISTORY
REVISION
DATE
DESCRIPTION OF CHANGES
•
•
•
Implemented Revision History page
Added Pb-Free package option (Suffix EW) and higher Soldering temperature
5/2006
7.0
Added “Y” temperature (T -40°C to 125°C) code option (MM908E624AYEW) and updated condi-
J
tion statement for Static and Dynamic Electrical Characteristics
•
Corrected Figure 11, Operating Modes and Transitions (“STOP command” for transition from Nor-
mal to Stop state)
•
•
•
•
•
•
•
•
•
Updated Figure 21, PCB Layout Recommendations, comment NC Pin used for signal routing
Updated Table 15, Component Value Recommendation
Corrected Figure 23, Device on Thermal Test Board
Removed reference to Note 11, Voltage Regulator - Dropout Voltage
Added comment “LIN in recessive state” to Supply Current Range in Stop Mode and Sleep Mode
Updated format to match current data sheet standard.
Added Figure 10, Power On Reset and Normal Request Timeout Timing
Added LIN P/L details
Made clarifications on Max Ratings Table for T and T Thermal Ratings and the accompanying
A
J
Note
3/2007
9/2010
•
•
Removed “Advance Information” watermark from first page.
Changed Peak Package Reflow Temperature During Reflow
8.0
9.0
(3)(5)
description.
(5)
•
•
•
•
•
•
•
Added note
Deleted MM908E624ACDWB/R2
8/2011
10.0
Added MM908E624ACPEW/R2 and MM908E624AYPEW/R2
Update Freescale form and style.
Updated package drawing
Removed part number MM908E624ACEW/ R2 and MM908E624AYEW/ R2.
Update Freescale form and style.
4/2012
11.0
908E624
Analog Integrated Circuit Device Data
Freescale Semiconductor
38
Information in this document is provided solely to enable system and software
implementers to use Freescale products. There are no express or implied copyright
licenses granted hereunder to design or fabricate any integrated circuits on the
information in this document.
How to Reach Us:
Home Page:
freescale.com
Web Support:
freescale.com/support
Freescale reserves the right to make changes without further notice to any products
herein. Freescale makes no warranty, representation, or guarantee regarding the
suitability of its products for any particular purpose, nor does Freescale assume any
liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation consequential or incidental
damages. “Typical” parameters that may be provided in Freescale data sheets and/or
specifications can and do vary in different applications, and actual performance may
vary over time. All operating parameters, including “typicals,” must be validated for
each customer application by customer’s technical experts. Freescale does not convey
any license under its patent rights nor the rights of others. Freescale sells products
pursuant to standard terms and conditions of sale, which can be found at the following
address: http://www.reg.net/v2/webservices/Freescale/Docs/TermsandConditions.htm
Freescale, the Freescale logo, AltiVec, C-5, CodeTest, CodeWarrior, ColdFire, C-Ware,
Energy Efficient Solutions logo, mobileGT, PowerQUICC, QorIQ, Qorivva, StarCore, and
Symphony are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off.
Airfast, BeeKit, BeeStack, ColdFire+, CoreNet, Flexis, MagniV, MXC, Platform in a
Package, Processor expert, QorIQ Qonverge, QUICC Engine, Ready Play,
SMARTMOS, TurboLink, Vybrid, and Xtrinsic are trademarks of Freescale
Semiconductor, Inc. All other product or service names are the property of their
respective owners.
© 2012 Freescale Semiconductor, Inc.
Document Number: MM908E624
Rev. 11.0
4/2012
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