MSM6577U-XXGS-K [OKI]
Microcontroller, 4-Bit, MROM, 0.032768MHz, CMOS, PQFP56, 9 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-56;
| 型号： | MSM6577U-XXGS-K |
| 厂家： | 
OKI ELECTRONIC COMPONETS |
| 描述： | Microcontroller, 4-Bit, MROM, 0.032768MHz, CMOS, PQFP56, 9 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-56 微控制器 |
| 文件： | 总22页 (文件大小：173K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
E2E0022-27-Y3
This version: Jan. 1998
Previous version: Mar. 1996
¡ Semiconductor
MSM6577-xx
Operatable at 0.9V and Built-in LCD Driver 4-Bit Microcontroller
GENERAL DESCRIPTION
TheMSM6577isa4-bitmicrocontrollerthatisfabricatedinOKI'slow-voltageCMOStechnology,
enabling operation at 0.9 V. This device incorporates LCD drivers, 8-bit synchronous serial
ports,andabuzzeroutputcircuit. TheMSM6577isoptimizedforremote-controlmicrocontroller
applications that are portable and battery powered.
FEATURES
• Operating range
Operating frequency
Operating voltage
: 32.768 kHz
1.5 V operation : MSM6577K/N/S/U
3.0 V operation : MSM6577L/C/D/E
(See Mask Option List.)
Operating temperature
• Memory space
: –20 to +70°C
ROM
RAM
: 1536 words ¥ 17 bits
: 128 words ¥ 4 bits
: 61 ms
• Minimum instruction execution time
• I/O port
Input-output port
Input only port
Output only port
• Serial port
• LCD drivers
: 1 port ¥ 4 bits
: 1 port ¥ 4 bits
: 1 port ¥ 4 bits
: 8-bit clock synchronous type
: 28
Duty and frame frequency are selectable by the mask options.
1/3 duty, 1/3 bias
1/2 duty, 1/3 bias
• Halt release timers
Timer frequency is selectable by the mask options.
• External interrupt
: Up to 75 segments
: Up to 52 segments
: 4
: 4
• Buzzer output
: 1
• Clock
: 32.768 kHz crystal oscillator
Oscillation starts at 0.9 V.
• Power supply voltage
:
1.5 V/3.0 V (selectable by mask
option)
(See Mask Option List)
• Packageoptions:
56-pin plastic QFP (QFP56-P-910-0.65-K)
56-pin plastic QFP (QFP56-P-910-0.65-2K)
Chip
(Product name : MSM6577 -¥¥GS-K)
(Product name : MSM6577 -¥¥GS-2K)
¥¥ indicates the code number.
indicates the option code.
1/22
ACC
ALU
A-Bus
S-Bus
D-Bus
RAM
128¥4 bits
FLAG
PAGE
WORK
ADRS
MPX
P2.3
P2.2
P2.1
P2.0
HRQSER EHRSER
SCND0 SCND1
SERIAL I/O
SBFFH
SBFFL
IRQEX EIEX PNEX
INTERRUPT CONTROL
MDTH
MDTL
SERIAL
HALT RELEASE
P1.3
P1.2
P1.1
P1.0
BD
BUZZER
TEMPO
LCDCT
P0.3
P0.2
P0.1
P0.0
PROGRAM ROM
HRQTMR EHRTMR
1536¥17 bits
HALT RELEASE
TIMER
ADDER
INSTRUCTION
REG.
TMOUT
SEG0
TIME BASE
COUNTER
LCD DRIVER
XT
OSC
INSTRUCTION
DECODER
SEG27
STACK
XTB
VDD
SYSTEM CLOCK
GENERATOR
VCP
VSS1
VSS2
VSS3
VOLTAGE
REGULATOR
VCM
VEE
¡ Semiconductor
MSM6577-xx
PIN CONFIGURATION (TOP VIEW)
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9 10
SEG10 11
SEG11 12
SEG12 13
SEG13 14
1
2
3
4
5
6
7
8
9
42 SEG27
41 SEG26
40 SEG25
39 SEG24
38 SEG23
37 SEG22
36 SEG21
35 SEG20
34 SEG19
33 SEG18
32 SEG17
31 SEG16
30 SEG15
29 SEG14
NC: No-connection pin
56-Pin Plastic QFP
*
Pin 49 (V ) is provided only when a 56-pin flat package is used.
DD
3/22
¡ Semiconductor
MSM6577-xx
PIN DESCRIPTIONS
Type
Description
Circuit
Symbol
PORT0
I/O • 4-bit input-output port
(P0.0 to P0.3)
• Input or output software selectable.
• A pull-up resistor or pull-down resistor can be selected for each bit (P0.0 to P0.3)
A
(via mask option).
• When using port as output, the pull-up or pull-down resistor is disconnected
from the pin.
PORT1
(P1.0 to P1.3)
I
• 4-bit input port
P1.0
P1.1
P1.2
P1.3
—
B
External
Interrupt
ports
• Pull-up resistor or pull-down
resistor can be selected for
Serial clock pin
Serial input pin
SCLK
C
B
PORT1 (P1.0 to P1.3)
(via mask option).
SIN
PORT2
(P2.0 to P2.3)
O
• 4-bit output port
P2.0
Serial output pin SOUT
—
D
E
E
P2.1 to P2.3
BD
O
I
Buzzer output pin
• Reset input pin
RESET
• System reset generation level "H" or "L" selectable (mask option)
Note : If "H" is selected, pull-down resistor is used and if "L" is selected,
pull-up resistor is used.
F
TEST
XT
I
Test pin (Tie to the negative pole of the battery.)*
Oscillation crystal connection pin
G
H
I
XTB
O
VDD
—
—
—
—
0V power supply pin
—
—
—
—
VSS1
VSS2
VSS3
VCP
–1.5 V power supply pin (power supply pin for –1.5 V operation)
–3.0 V power supply pin (power supply pin for –3.0 V operation)
–4.5 V power supply pin
Capacitor connection pin for voltage converter
—
—
VCM
VEE
—
O
Internal logic power supply pin (voltage regulator output pin)
Liquid crystal display driving pins
—
I
SEG0 to
SEG27
*
3.0 V operation ...... V = V
SS
SS2
SS1
1.5 V operation ...... V = V
SS
4/22
¡ Semiconductor
MSM6577-xx
Pin Circuits
A. Input-output port
VDD
VSS: by power supply specification
3.0 V operation ... VSS=VSS2
1.5 V operation ... VSS=VSS1
Pull-up control signal
CMOS inverter
I
O
VSS
(Internal logic)
3-state CMOS buffer
VSS
VDD
(Internal logic)
I
O
VSS
VSS
I/O switching signal
Pull-down control signal
VSS
B. Input port
VDD
Pull-up control signal
CMOS inverter
(Internal logic)
VSS
Pull-down control signal
VSS
5/22
¡ Semiconductor
MSM6577-xx
C. Input port
VDD
Pull-up control signal
CMOS inverter
(Internal logic)
VSS
3-state CMOS buffer
SCLK
VSS
Serial output control signal
Pull-down control signal
VSS
D. Output port
CMOS inverter
(Internal logic)
(SOUT)
VSS
Output switching control signal
E. Output port, BD pin
CMOS inverter
(Internal logic)
VSS
6/22
¡ Semiconductor
MSM6577-xx
F. RESET pin
VDD
CMOS Schmitt trigger buffer
2
1
2
(Internal Logic)
VSS
1
"1"...System reset generated by a "H" level
"2"...System reset generated by a "L" level
VSS
G. TEST pin
CMOS inverter
(Internal logic)
VSS
VSS
H. Oscillation part (XT, XTB pins)
VDD
CG
ROM Option (normally connected)
CMOS Inverter
(Internal logic)
VEE
VEE
Rf
Constants
CD
Rf=approximately 20 MW
CD=approximately 20 pF
CG=approximately 5 pF
VEE
7/22
¡ Semiconductor
MSM6577-xx
I. LCD driver
VDD / VSS1
(Internal logic)
VSS2 / VSS3
8/22
¡ Semiconductor
MSM6577-xx
ABSOLUTE MAXIMUM RATINGS (MSM6577K/77N/77S/77U)
1.5 V operation •Backup flag (BUF)="0"
The input of the constant voltage circuit corresponds to the output of the voltage converter
VDD=0 V (VSS1=Battery Voltage)
(V ).
SS2
Parameter
Symbol
Condition
Ta=25°C
—
Rating
Unit
Power Supply Voltage 1
Power Supply Voltage 2
Power Supply Voltage 3
Input Voltage
VSS1
VSS2
VSS3
VIN
–4.0 to +0.3
–7.0 to +0.3
–7.0 to +0.3
VSS1–0.3 to +0.3
VSS1–0.3 to +0.3
VSS2–0.3 to +0.3
VSS3–0.3 to +0.3
–55 to +125
V
Output Voltage 1 *1,*2
Output Voltage 2 *2
Output Voltage 3 *2
Storage Temperature
VO1
VO2
VO3
TSTG
°C
*1 Normal output
*2 LCD driver output
RECOMMENDED OPERATING CONDITIONS (MSM6577K/77N/77S/77U)
1.5 V operation •Backup flag (BUF)="0"
The input of the constant voltage circuit corresponds to the output of the voltage converter
(V ).
VDD=0 V (VSS1=Battery Voltage)
SS2
Parameter
Symbol
Vop
Condition
Range
–0.9 to –1.75
–20 to +70
32.768
Unit
V
Operating Voltage
—
—
—
Operating Temperature
Oscillation Frequency
Top
°C
fOSC
kHz
9/22
¡ Semiconductor
MSM6577-xx
ELECTRICAL CHARACTERISTICS (MSM6577K/77N/77S/77U)
1.5 V operation •Backup flag (BUF)="0"
The input of the constant voltage circuit corresponds to the output of the voltage converter
(V ).
(VDD=0 V, VSS1=–1.5 V (Battery Voltage), VSS2=–3.0 V, VSS3=–4.5 V, fOSC=32.768 kHz, CX=35 pF, Ta=25°C)
SS2
Symbol
Parameter
Condition
Max. Unit
Applicable Pin
Typ.
Min.
—
—
Current Consumption
Oscillation Start Voltage
*1
3
—
—
µA
V
—
IDD
–VOSC
Within 2 sec
0.9
VSS1
Output Current 1
Output Current 2
VO=–0.5 V
VO=–1.0 V
VO=–0.5 V
VO=–1.0 V
VOH=–0.2 V
VOMH=VSS1
0.2 V
150
150
20
20
4
—
—
—
—
—
—
—
—
—
—
—
—
µA
µA
µA
PORT0, PORT 2 *2
SOUT, SCLK
–IOH1
IOL1
BD
–IOH2
IOL2
Output Current 3
(LCD driver
Common • Segment)
SEG0 to SEG27
–IOH3
IOMH3
4
VOML=VSS2
0.2 V
4
4
—
—
—
IOML3
VOL=–4.3 V
—
15
IOL3
IIH1
Input Current 1
VI=0 V,
Input mode,
with pull-down
resistor
3.75 7.5
µA
µA
µA
PORT0, PORT1 *2
PORT0, PORT1 *2
Input Current 2
VI=–1.5 V,
Input mode,
with pull-up
resistor
3.75 7.5
15
1
–|IL2
Input Leakage Current
VI=0 V, –1.5 V
Input mode,
without internal
resistor
—
—
PORT0, PORT1 *2
SIN, SOUT, SCLK
RESET *3
|IIL|
Input Current 3
Input Current 4
Input Voltage
VI=0 V,
with pull-down
resistor
30 100 200 µA
30 100 200 µA
RESET *3
TEST
IIH3
VI=–1.5 V,
with pull-up
resistor
RESET *3
–IIL4
—
—
—
—
0.3
—
V
All input pins
–VIH
–VIL
1.2
*1 Dependent on program ("3 mA typ." is under 5% duty of the microcontroller).
*2 PORT0=P0.0 to P0.3, PORT1=P1.0 to P1.3, PORT2=P2.0 to P2.3
(P1.2 is shared with SCLK, P1.3 with SOUT, and P2.0 with SIN)
*3 The RESET pin can be selected by mask option (with pull-down, with pull-up or without
internal resistor).
MSM6577K: System reset by a "H" level with a pull-down resistor
MSM6577N: System reset by a "H" level without a pull-down resistor
MSM6577S: System reset by a "L" level with a pull-up resistor
MSM6577U: System reset by a "L" level without a pull-up resistor
10/22
¡ Semiconductor
MSM6577-xx
ABSOLUTE MAXIMUM RATINGS (MSM6577K/N/S/U)
1.5 V operation •Backup flag (BUF)="1"
The input of the constant voltage circuit corresponds to the output of the battery (V ).
SS1
VDD=0 V (VSS1=Battery Voltage)
Parameter
Symbol
Condition
Ta=25°C
—
Rating
Unit
Power Supply Voltage 1
Power Supply Voltage 2
Power Supply Voltage 3
Input Voltage
VSS1
VSS2
VSS3
VIN
–4.0 to +0.3
–7.0 to +0.3
–7.0 to +0.3
VSS1–0.3 to +0.3
VSS1–0.3 to +0.3
VSS2–0.3 to +0.3
VSS3–0.3 to +0.3
–55 to +125
V
Output Voltage 1 *1,*2
Output Voltage 2 *2
Output Voltage 3 *2
Storage Temperature
VO1
VO2
VO3
TSTG
°C
*1 Normal output
*2 LCD driver output
RECOMMENDED OPERATING CONDITIONS (MSM6577K/N/S/U)
1.5 V operation •Backup flag (BUF)="1"
The input of the constant voltage circuit corresponds to the output of the battery (V ).
SS1
VDD=0 V (VSS1=Battery Voltage)
Parameter
Operating Voltage
Symbol
Vop
Condition
Range
–0.9 to –1.75
–20 to +70
32.768
Unit
V
—
—
—
Operating Temperature
Oscillation Frequency
Top
°C
fOSC
kHz
11/22
¡ Semiconductor
MSM6577-xx
ELECTRICAL CHARACTERISTICS (MSM6577K/N/S/U)
1.5 V operation •Backup flag (BUF)="1"
The input of the constant voltage circuit corresponds to the output of the battery (V ).
SS1
(VDD=0 V, VSS1=–1.5 V (Battery Voltage), VSS2=–3.0 V, VSS3=–4.5 V, fOSC=32.768 kHz, CX=35 pF, Ta=25°C)
Parameter
Symbol
Condition
Min. Typ. Max. Unit
Applicable Pin
Current Consumption
Oscillation Start Voltage
*1
—
—
1.5
—
—
0.9
µA
V
—
IDD
–VOSC
Within 2 sec
VSS1
Output Current 1
Output Current 2
VO=–0.5 V
VO=–1.0 V
VO=–0.5 V
VO=–1.0 V
VOH=–0.2 V
VOMH=VSS1
0.2 V
150
150
20
20
4
—
—
—
—
—
—
—
—
—
—
—
—
µA
µA
µA
PORT0, PORT2 *2
SOUT, SCLK
–IOH1
IOL1
BD
–IOH2
IOL2
Output Current 3
(LCD driver
Common • Segment)
SEG0 to SEG27
–IOH3
IOMH3
4
VOML=VSS2
0.2 V
4
4
—
—
—
IOML3
VOL=–4.3 V
—
15
IOL3
IIH1
Input Current 1
VI=0 V,
Input mode,
with pull-down
resistor
3.75 7.5
µA
µA
µA
PORT0, PORT1 *2
PORT0, PORT1 *2
Input Current 2
VI=–1.5 V,
Input mode,
with pull-up
resistor
3.75 7.5
15
1
–|IL2
Input Leakage Current
VI=0 V, –1.5 V
Input mode,
without internal
resistor
—
—
PORT0, PORT1 *2
SIN, SOUT, SCLK
RESET *3
IIL
Input Current 3
Input Current 4
Input Voltage
VI=0 V,
with pull-down
resistor
30 100 200 µA
30 100 200 µA
RESET *3
TEST
IIH3
VI=–1.5 V,
with pull-up
resistor
RESET *3
–IIL4
—
—
—
—
0.3
—
V
All input pins
–VIH
–VIL
1.2
*1 Dependent on program ("1.5 mA typ." is under 5% duty of the microcontroller)
*2 PORT0=P0.0 to P0.3, PORT1=P1.0 to P1.3, PORT2=P2.0 to P2.3
(P1.2 is shared with SCLK, P1.3 with SOUT, and P2.0 with SIN.)
*3 RESET pin can be selected by mask option (with pull-down, with pull-up or without inter-
nal resistor).
MSM6577K: System reset by a "H" level with a pull-down resistor
MSM6577N: System reset by a "H" level without a pull-down resistor
MSM6577S: System reset by a "L" level with a pull-up resistor
MSM6577U: System reset by a "L" level without a pull-up resistor
12/22
¡ Semiconductor
MSM6577-xx
ABSOLUTE MAXIMUM RATINGS (MSM6577L/C/D/E)
3.0 V operation •Backup flag (BUF)="0"
The input of the constant voltage circuit corresponds to the output of the voltage converter
VDD=0 V (VSS2=Battery Voltage)
(V ).
SS1
Parameter
Symbol
Condition
Ta=25°C
—
Rating
Unit
Power Supply Voltage 1
Power Supply Voltage 2
Power Supply Voltage 3
Input Voltage
VSS1
VSS2
VSS3
VIN
–4.0 to +0.3
–7.0 to +0.3
–7.0 to +0.3
VSS2–0.3 to +0.3
VSS1–0.3 to +0.3
VSS2–0.3 to +0.3
VSS3–0.3 to +0.3
–55 to +125
V
Output Voltage 1 *2
Output Voltage 2 *1,*2
Output Voltage 3 *2
Storage Temperature
VO1
VO2
VO3
TSTG
°C
*1 Normal output
*2 LCD driver output
RECOMMENDED OPERATING CONDITIONS (MSM6577L/C/D/E)
3.0 V operation •Backup flag (BUF)="0"
The input of the constant voltage circuit corresponds to the output of the voltage converter
(V ).
VDD=0 V (VSS2=Battery Voltage)
SS1
Parameter
Symbol
Vop
Condition
Range
–1.8 to –3.5
–20 to +70
32.768
Unit
V
Operating Voltage
—
—
—
Operating Temperature
Oscillation Frequency
Top
°C
fOSC
kHz
13/22
¡ Semiconductor
MSM6577-xx
ELECTRICAL CHARACTERISTICS (MSM6577L/C/D/E)
3.0 V operation •Backup flag (BUF)="0"
The input of the constant voltage circuit corresponds to the output of the voltage converter
(V ).
(VDD=0 V, VSS1=–1.5 V, VSS2=–3.0 V (Battery Voltage), VSS3=–4.5 V, fOSC=32.768 kHz, CX=35 pF, Ta=25°C)
SS1
Symbol
Conditions
Min. Typ. Max.
Applicable Pin
Parameter
Unit
µA
V
Current Consumption
Oscillation Start Voltage
*1
—
—
0.75
—
—
1.8
—
IDD
–VOSC
Within 2 sec
VSS2
Output Current 1
Output Current 2
VO=–0.5 V
VO=–2.5 V
VO=–0.5 V
VO=–2.5 V
VOH=–0.2 V
VOMH=VSS1
0.2 V
500
500
20
20
4
—
—
—
—
—
—
—
—
—
—
—
—
µA
µA
µA
PORT0, PORT2 *2
SOUT, SCLK
–IOH1
IOL1
BD
–IOH2
IOL2
Output Current 3
(LCD driver
Common/Segment)
SEG0 to SEG27
–IOH3
IOMH3
4
VOML=VSS2
0.2 V
4
4
—
—
—
—
IOML3
VOL=–4.3 V
IOL3
IIH1
Input Current 1
VI=0 V,
Input mode,
with pull-down
resistor
60 120 240 µA
PORT0, PORT1 *2
PORT0, PORT1 *2
Input Current 2
VI=–3.0 V,
Input mode,
with pull-up
resistor
60 120 240 µA
–|IL2
Input Leakage Current
VI=0 V, –3.0 V
Input mode,
without internal
resistor
—
—
1
µA
PORT0, PORT1 *2
SIN, SOUT, SCLK
RESET *3
IIL
Input Current 3
Input Current 4
Input Voltage
VI=0 V,
with pull-down
resistor
200 750 1500 µA
200 750 1500 µA
RESET *3
TEST
IIH3
VI=–3.0 V,
with pull-up
resistor
RESET *3
–IIL4
—
—
—
—
0.5
—
V
All input pins
–VIH
–VIL
2.5
*1 Dependent on program ("0.75 mA typ." is under 5% duty of the MCU.)
*2 PORT0=P0.0 to P0.3, PORT1=P1.0 to P1.3, PORT2=P2.0 to P2.3
(P1.2 is shared with SCLK, P1.3 with SOUT, and P2.0 with SIN.)
*3 RESET pin can be selected by mask option (with pull-down, with pull-up or without inter-
nal resistor).
MSM6577L: System reset by a "H" level with a pull-down resistor
MSM6577C: System reset by a "H" level without a pull-down resistor
MSM6577D: System reset by a "L" level with a pull-up resistor
MSM6577E: System reset by a "L" level without a pull-up resistor
14/22
¡ Semiconductor
MSM6577-xx
ABSOLUTE MAXIMUM RATINGS (MSM6577L/C/D/E)
3.0 V operation •Backup flag (BUF)="1"
The input of the constant voltage circuit corresponds to the output of the battery (V ).
SS2
VDD=0 V (VSS2=Battery Voltage)
Parameter
Symbol
Condition
Ta=25°C
—
Rating
Unit
Supply Voltage 1
Supply Voltage 2
Supply Voltage 3
Input Voltage
VSS1
VSS2
VSS3
VIN
–4.0 to +0.3
–7.0 to +0.3
–7.0 to +0.3
VSS2–0.3 to +0.3
VSS1–0.3 to +0.3
VSS2–0.3 to +0.3
VSS3–0.3 to +0.3
–55 to +125
V
Output Voltage 1 *2
Output Voltage 2 *1,*2
Output Voltage 3 *2
Storage Temperature
V01
V02
V03
TSTG
°C
*1 Normal output
*2 LCD driver output
RECOMMENDED OPERATING CONDITIONS (MSM6577L/C/D/E)
3.0 V operation •Backup flag (BUF)="1"
The input of the constant voltage circuit corresponds to the output of the battery (V ).
SS2
VDD=0 V (VSS2=Battery Voltage)
Parameter
Operating Voltage
Symbol
Vop
Condition
Range
–0.9 to –3.5
–20 to +70
32.768
Unit
V
—
—
—
Operating Temperature
Oscillation Frequency
Top
°C
fOSC
kHz
15/22
¡ Semiconductor
MSM6577-xx
ELECTRICAL CHARACTERISTICS (MSM6577L/C/D/E)
3.0 V operation •Backup flag (BUF)="1"
The input of the constant voltage circuit corresponds to the output of the battery (V ).
SS2
(VDD=0 V, VSS1=–1.5 V, VSS2=–3.0 V (Battery Voltage), VSS3=–4.5 V, fOSC=32.768 kHz, CX=35 pF, Ta=25°C)
Parameter
Condition
Min. Typ. Max. Unit
Applicable Pin
Symbol
Current Consumption
Oscillation Start Voltage
*1
—
—
1.5
—
—
0.9
µA
V
—
IDD
–VOSC
Within 2 sec
VSS2
Output Current 1
Output Current 2
VO=–0.5 V
VO=–2.5 V
VO=–0.5 V
VO=–2.5 V
VOH=–0.2 V
VOMH=VSS1
0.2 V
500
500
20
20
4
—
—
—
—
—
—
—
—
—
—
—
—
µA
µA
µA
PORT0, PORT2 *2
SOUT, SCLK
–IOH1
IOL1
BD
–IOH2
IOL2
Output Current 3
(LCD driver
Common • Segment)
SEG0 to SEG27
–IOH3
IOMH3
4
VOML=VSS2
0.2 V
4
4
—
—
—
—
IOML3
VOL=–4.3 V
IOL3
IIH1
Input Current 1
VI=0 V,
Input mode,
with pull-down
resistor
60 120 240 µA
PORT0, PORT1 *2
PORT0, PORT1 *2
Input Current 2
VI=–3.0 V,
Input mode,
with pull-up
resistor
60 120 240 µA
–|IL2
Input Leakage Current
VI=0 V, –3.0 V
Input mode,
without internal
resistor
—
—
1
µA
PORT0, PORT1 *2
SIN, SOUT, SCLK
RESET *3
|
IL
Input Current 3
Input Current 4
Input Voltage
VI=0 V,
with pull-down
resistor
200 750 1500 µA
200 750 1500 µA
RESET *3
TEST
IIH3
VI=–3.0 V,
with pull-up
resistor
RESET *3
–IIL4
—
—
—
—
0.5
—
V
All input pins
–VIH
–VIL
2.5
*1 Dependent on program ("1.5 mA typ." is under 5% duty of the MCU.)
*2 PORT0=P0.0 to P0.3, PORT1=P1.0 to P1.3, PORT2=P2.0 to P2.3
(P1.2 is shared with SCLK, P1.3 with SOUT, and P2.0 with SIN.)
*3 RESET pin can be selected by mask option (with pull-down, with pull-up or without inter-
nal resistor).
MSM6577L: System reset by a "H" level with a pull-down resistor
MSM6577C: System reset by a "H" level without a pull-down resistor
MSM6577D: System reset by a "L" level with a pull-up resistor
MSM6577E: System reset by a "L" level without a pull-up resistor
16/22
¡ Semiconductor
MSM6577-xx
MASK OPTION LIST
The device names for the MSM6577-xx are differentiated as follows, depending on the
combination of a power supply voltage and RESET pin function.
No.
1
Battery
RESET Pin Function
Device
1.5 V operation System reset by a "H" level with a pull-down resistor
1.5 V operation System reset by a "H" level without a pull-down resistor
1.5 V operation System reset by a "L" level with a pull-up resistor
1.5 V operation System reset by a "L" level without a pull-up resistor
3.0 V operation System reset by a "H" level with a pull-down resistor
3.0 V operation System reset by a "H" level without a pull-down resistor
3.0 V operation System reset by a "L" level with a pull-up resistor
3.0 V operation System reset by a "L" level without a pull-up resistor
MSM6577K-xx
MSM6577N-xx
MSM6577S-xx
MSM6577U-xx
MSM6577L-xx
MSM6577C-xx
MSM6577D-xx
MSM6577E-xx
2
3
4
5
6
7
8
17/22
¡ Semiconductor
MSM6577-xx
NOTES ON USE
PowerSupplyfor0.9VMicrocontrollerSeries: BackupFlagandConstant-VoltageCircuit
The 0.9 V microcontroller series have a built-in constant-voltage circuit. The output of this
constant-voltage circuit powers the microcontroller's internal logic circuits. Setting a backup
flag (BUF) allows the input of the constant voltage circuit to be switched to either the battery or
the output generated in the voltage converter, based on the battery voltage. A battery voltage
of 1.5 V or 3.0 V can be selected.
VDD
Internal
logic
(0 V)
XT
Voltage
Backup flag
(BUF)
VSS1
(–1.5 V)
XTAL
converter
XTB
VSS2
(–3.0 V)
Constant voltage circuit
VR
*VSS3
(–4.5 V)
VEE
(About–1.3 V)
* The VSS3 pin is provided for the devices that contain an
LCD driver.
LCD driver*
The output (V ) of the constant-voltage circuit is set at approximately –1.3 V. This allows the
EE
current consumed by the internal logic to be limited, irrespective of the battery voltage.
However, if the input of the constant voltage circuit is below this set value (about –1.3 V), the
output (V ) is equal to the input. The 0.9 V microcontroller can be operated even if the internal
EE
voltage (output from the constant-voltage circuit) falls to 0.9 V. Setting the backup flag allows
alargeroperatingvoltagemargindespitechangesininternalvoltageduetonoise. Forexample,
for the 1.5 V operation, setting the backup flag to "0" supplies twice the battery voltage to the
constant-voltage circuit. Thus, even if the battery voltage falls to 0.9 V, the output voltage (V
)
EE
is maintained at –1.3 V, providing a larger margin of operating voltage of the internal logic
circuits because 1.8 V is applied to the input of the constant-voltage circuit. Figures 1 to 4 show
the internal status depending on the backup flag settings for the battery, as well as status
features.
18/22
¡ Semiconductor
MSM6577-xx
(Figure 1) 1.5 V Operation (Backup Flag="1")
Internal
status
The battery level VSS1 is applied to the input of the
constant voltage circuit.
VDD=0 V
VDD
Voltage converter
VSS1
Internal logic
VB=–1.5 V
Operating
range
–0.9 to –1.75 V
Voltage
doubler
Current
1.5 mA*
consumption
VSS2
(–3.0 V)
Feature
When the battery level is powered down, the internal
circuit is powered directly by the battery.
VR
VEE
* When the software duty is about 5%
(Figure 2) 1.5 V Operation (Backup Flag="0")
Internal
status
A doubled level of VSS2 is applied to the input of the
constant voltage circuit.
VDD=0 V
VDD
Voltage converter
VSS1
VB=–1.5 V
Internal logic
Operating
range
–0.9 to –1.75 V
Voltage
doubler
Current
3 mA*
VSS2
consumption
(–3.0 V)
When the baftery level is powered down, a larger
operating voltage margin is gained, compared to the
case of Figure 1.
Feature
VR
VEE
* When the software duty is about 5%
(Figure 3) 3.0 V Operation (Backup Flag="1")
Internal
status
The battery level VSS2 is applied to the input of the
constant voltage circuit.
VDD=0 V
VDD
Internal logic
(–1.5 V)
Operating
range
Voltage converter
–0.9 to –3.5 V
VSS1
Voltage
doubler
VB=–3.0 V
Current
1.5 mA*
VSS2
consumption
Feature
When the battery level is powered down, the internal
circuit is powered directly by the battery.
VR
VEE
* When the software duty is about 5%
19/22
¡ Semiconductor
MSM6577-xx
(Figure 4) 3.0 V Operation (Backup Flag="0")
Internal
status
A doubled level of VSS1 is applied to the input of the
constant voltage circuit.
VDD=0 V
VDD
Internal logic
(–1.5 V)
Operating
range
Voltage converter
–1.8 to –3.5 V
VSS1
Voltage
rise
VB=–3.0 V
Current
0.75 mA*
VSS2
consumption
When the battery level is powered down, a smaller
operating voltage margin is gained, compared to the
case of Figure 3.
Feature
VR
VEE
* When the software duty is about 5%
20/22
¡ Semiconductor
PACKAGE DIMENSIONS
QFP56-P-910-0.65-K
MSM6577-xx
(Unit : mm)
Mirror finish
Package material
Lead frame material
Pin treatment
Solder plate thickness
Package weight (g)
Epoxy resin
42 alloy
Solder plating
5 mm or more
0.36 TYP.
Notes for Mounting the Surface Mount Type Package
The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which
are very susceptible to heat in reflow mounting and humidity absorbed in storage.
Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the
product name, package name, pin number, package code and desired mounting conditions
(reflow method, temperature and times).
21/22
¡ Semiconductor
MSM6577-xx
(Unit : mm)
QFP56-P-910-0.65-2K
Mirror finish
Package material
Lead frame material
Pin treatment
Solder plate thickness
Package weight (g)
Epoxy resin
42 alloy
Solder plating
5 mm or more
0.43 TYP.
Notes for Mounting the Surface Mount Type Package
The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which
are very susceptible to heat in reflow mounting and humidity absorbed in storage.
Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the
product name, package name, pin number, package code and desired mounting conditions
(reflow method, temperature and times).
22/22
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