SN74AVCH4T245RGYR [TI]
4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS; 可配置电压转换和三态输出的4位双电源总线收发器型号: | SN74AVCH4T245RGYR |
厂家: | TEXAS INSTRUMENTS |
描述: | 4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS |
文件: | 总19页 (文件大小:604K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
FEATURES
•
Control Inputs VIH/VIL Levels Are Referenced
to VCCA Voltage
•
•
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
•
Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.2-V to
3.6-V Power-Supply Range
ESD Protection Exceeds JESD 22
– 8000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
•
•
I/Os Are 4.6-V Tolerant
– 1000-V Charged-Device Model (C101)
Ioff Supports Partial Power-Down-Mode
Operation
•
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
D, DGV, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW)
V
V
CCB
1
2
3
4
5
6
7
8
16
15
14
13
CCA
1DIR
2DIR
1A1
1OE
2OE
1B1
1
16
15
14
13
12
11
10
1DIR
2DIR
1A1
1A2
2A1
2A2
2
3
4
5
6
7
1OE
2OE
1B1
1B2
2B1
2B2
1A2
12 1B2
11
10
9
2A1
2B1
2B2
GND
2A2
GND
8
9
DESCRIPTION/ORDERING INFORMATION
This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed
to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB
accepts any supply voltage from 1.2 V to 3.6 V. The SN74AVCH4T245 is optimized to operate with VCCA/VCCB
set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. This allows for universal low-voltage
bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
The SN74AVCH4T245 is designed for asynchronous communication between data buses. The device transmits
data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the
direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are
effectively isolated.
The SN74AVCH4T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA
.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance
state. The bus-hold circuitry on the powered-up side always stays active.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
www.ti.com
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
SN74AVCH4T245RGYR
SN74AVCH4T245D
TOP-SIDE MARKING
QFN – RGY
SOIC – D
Tape and reel
WS245
Tube
AVCH4T245
Tape and reel
Tube
SN74AVCH4T245DR
–40°C to 85°C
SN74AVCH4T245PW
TSSOP – PW
TVSOP – DGV
WS245
WS245
Tape and reel
Tape and reel
SN74AVCH4T245PWR
SN74AVCH4T245DGVR
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
FUNCTION TABLE
(EACH 4-BIT SECTION)
INPUTS
OPERATION
OE
L
DIR
L
B data to A bus
A data to B bus
All output Hi-Z
L
H
H
X
LOGIC DIAGRAM (POSITIVE LOGIC)
2
4
3
1DIR
1A1
2DIR
15
14
11
1OE
2OE
2B1
6
2A1
13
1B1
5
7
1A2
2A2
12
10
1B2
2B2
2
Submit Documentation Feedback
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
Absolute Maximum Ratings(1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VCCA
Supply voltage range
VCCB
–0.5
4.6
V
I/O ports (A port)
I/O ports (B port)
Control inputs
A port
–0.5
–0.5
–0.5
–0.5
–0.5
4.6
4.6
4.6
4.6
4.6
VI
Input voltage range(2)
V
Voltage range applied to any output
VO
VO
V
V
in the high-impedance or power-off state(2)
B port
A port
–0.5 VCCA + 0.5
Voltage range applied to any output in the high or low state(2)(3)
B port
–0.5 VCCB + 0.5
IIK
IOK
IO
Input clamp current
VI < 0
–50
–50
±50
±100
73
mA
mA
mA
mA
Output clamp current
VO < 0
Continuous output current
Continuous current through VCCA, VCCB, or GND
D package(4)
DGV package(4)
PW package(4)
RGY package(5)
120
108
39
θJA
Package thermal impedance
Storage temperature range
°C/W
°C
Tstg
–65
150
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
(3) The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
(5) The package thermal impedance is calculated in accordance with JESD 51-5.
3
Submit Documentation Feedback
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
www.ti.com
Recommended Operating Conditions(1)(2)(3)(4)(5)
VCCI
VCCO
MIN
MAX UNIT
VCCA
VCCB
Supply voltage
Supply voltage
1.2
3.6
3.6
V
V
1.2
CCI × 0.65
1.6
1.2 V to 1.95 V
1.95 V to 2.7 V
2.7 V to 3.6 V
1.2 V to 1.95 V
1.95 V to 2.7 V
2.7 V to 3.6 V
1.2 V to 1.95 V
1.95 V to 2.7 V
2.7 V to 3.6 V
1.2 V to 1.95 V
1.95 V to 2.7 V
2.7 V to 3.6 V
V
High-level
input voltage
VIH
VIL
VIH
VIL
Data inputs(4)
Data inputs(4)
V
V
V
V
2
VCCI × 0.35
Low-level
input voltage
0.7
0.8
V
CCA × 0.65
High-level
input voltage
DIR
1.6
2
(5)
(5)
(referenced to VCCA
)
)
V
CCA × 0.35
Low-level
input voltage
DIR
0.7
0.8
3.6
VCCO
3.6
–3
–6
–8
–9
–12
3
(referenced to VCCA
VI
Input voltage
0
0
0
V
V
Active state
3-state
VO
Output voltage
1.2 V
1.4 V to 1.6 V
1.65 V to 1.95 V
2.3 V to 2.7 V
3 V to 3.6 V
1.2 V
IOH
High-level output current
Low-level output current
mA
mA
1.4 V to 1.6 V
1.65 V to 1.95 V
2.3 V to 2.7 V
3 V to 3.6 V
6
IOL
8
9
12
5
∆t/∆v
Input transition rise or fall rate
Operating free-air temperature
ns/V
TA
–40
85
°C
(1) VCCI is the VCC associated with the input port.
(2) VCCO is the VCC associated with the output port.
(3) All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
(4) For VCCI values not specified in the data sheet, VIH min = VCCI × 0.7 V, VIL max = VCCI × 0.3 V.
(5) For VCCA values not specified in the data sheet, VIH min = VCCA × 0.7 V, VIL max = VCCA × 0.3 V.
4
Submit Documentation Feedback
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
Electrical Characteristics(1)(2)
over recommended operating free-air temperature range (unless otherwise noted)
TA = 25°C
–40°C to 85°C
MIN MAX
PARAMETER
TEST CONDITIONS
VCCA
VCCB
UNIT
MIN
TYP
MAX
IOH = –100 µA
1.2 V to 3.6 V
1.2 V
1.2 V to 3.6 V
1.2 V
VCCO – 0.2 V
IOH = –3 mA
0.95
0.15
IOH = –6 mA
VI = VIH
1.4 V
1.4 V
1.05
1.2
VOH
V
IOH = –8 mA
1.65 V
2.3 V
1.65 V
2.3 V
IOH = –9 mA
IOH = –12 mA
IOL = 100 µA
IOL = 3 mA
1.75
2.3
3 V
3 V
1.2 V to 3.6 V
1.2 V
1.2 V to 3.6 V
1.2 V
0.2
IOL = 6 mA
VI = VIL
1.4 V
1.4 V
0.35
0.45
0.55
0.7
VOL
V
IOL = 8 mA
1.65 V
2.3 V
1.65 V
2.3 V
IOL = 9 mA
IOL = 12 mA
3 V
3 V
II
DIR input VI = VCCA or GND
1.2 V to 3.6 V
1.2 V
1.2 V to 3.6 V
1.2 V
±0.025 ±0.25
±1
µA
µA
VI = 0.42 V
VI = 0.49 V
VI = 0.58 V
VI = 0.7 V
VI = 0.8 V
VI = 0.78 V
VI = 0.91 V
VI = 1.07 V
VI = 1.6 V
VI = 2 V
25
1.4 V
1.4 V
15
25
(3)
IBHL
1.65 V
2.3 V
1.65 V
2.3 V
45
3.3 V
3.3 V
100
1.2 V
1.2 V
–25
1.4 V
1.4 V
–15
–25
(4)
IBHH
1.65 V
2.3 V
1.65 V
2.3 V
µA
µA
µA
–45
3.3 V
3.3 V
–100
1.2 V
1.2 V
50
1.6 V
1.6 V
125
200
300
500
(5)
IBHLO
VI = 0 to VCCI
1.95 V
2.7 V
1.95 V
2.7 V
3.6 V
3.6 V
1.2 V
1.2 V
–50
1.6 V
1.6 V
–125
–200
–300
–500
(6)
IBHHO
VI = 0 to VCCI
1.95 V
2.7 V
1.95 V
2.7 V
3.6 V
3.6 V
(1) VCCO is the VCC associated with the output port.
(2) VCCI is the VCC associated with the input port.
(3) The bus-hold circuit can sink at least the minimum low sustaining current at VIL max. IBHL should be measured after lowering VIN to GND
and then raising it to VIL max.
(4) The bus-hold circuit can source at least the minimum high sustaining current at VIH min. IBHH should be measured after raising VIN to
VCC and then lowering it to VIH min.
(5) An external driver must source at least IBHLO to switch this node from low to high.
(6) An external driver must sink at least IBHHO to switch this node from high to low.
5
Submit Documentation Feedback
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
www.ti.com
Electrical Characteristics(1)(2)
over recommended operating free-air temperature range (unless otherwise noted) (continued)
TA = 25°C
–40°C to 85°C
MIN MAX
PARAMETER
TEST CONDITIONS
VCCA
VCCB
UNIT
MIN TYP MAX
A port
B port
0 V
0 V to 3.6 V
0 V
±0.1
±0.1
±1
±1
±5
±5
Ioff
VI or VO = 0 to 3.6 V
µA
0 V to 3.6 V
VO = VCCO or
A or B port GND,
OE = VIH
3.6 V
3.6 V
±0.5 ±2.5
±5
VI = VCCI or GND
(3)
IOZ
µA
B port
A port
VO = VCCO or
GND,
VI = VCCI or GND
OE =
don't
care
0 V
3.6 V
0 V
±5
±5
3.6 V
1.2 V to 3.6 V
0 V
1.2 V to 3.6 V
3.6 V
8
–2
8
ICCA
VI = VCCI or GND, IO = 0
VI = VCCI or GND, IO = 0
µA
µA
3.6 V
0 V
1.2 V to 3.6 V
0 V
1.2 V to 3.6 V
3.6 V
8
ICCB
8
3.6 V
0 V
–2
16
ICCA + ICCB
VI = VCCI or GND, IO = 0
VI = 3.3 V or GND
1.2 V to 3.6 V
1.2 V to 3.6 V
µA
pF
pF
Control
inputs
Ci
3.3 V
3.3 V
3.3 V
3.3 V
3.5
6
4.5
7
Cio
A or B port VO = 3.3 V or GND
(1) VCCO is the VCC associated with the output port.
(2) VCCI is the VCC associated with the input port.
(3) For I/O ports, the parameter IOZ includes the input leakage current.
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 1)
VCCB = 1.5 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
VCCB = 3.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.1 V
± 0.2 V
± 0.3 V
PARAMETER
UNIT
TYP
3.4
3.4
3.6
3.6
5.6
5.6
5
TYP
2.9
2.9
3.1
3.1
4.7
4.7
4.3
4.3
5.2
5.2
5.1
5.1
TYP
2.7
2.7
2.8
2.8
4.3
4.3
3.9
3.9
5.2
5.2
5
TYP
2.6
2.6
2.6
2.6
3.9
3.9
3.6
3.6
4.3
4.3
4.7
4.7
TYP
2.8
2.8
2.6
2.6
3.7
3.7
3.6
3.6
4.8
4.8
5.5
5.5
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
B
OE
OE
OE
OE
5
6.2
6.2
5.9
5.9
5
6
Submit Documentation Feedback
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 1)
VCCB = 1.5 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V VCCB = 3.3 V
± 0.2 V ± 0.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.1 V
PARAMETER
UNIT
TYP
3.2
3.2
3.3
3.3
4.9
4.9
4.5
4.5
5.6
5.6
5.2
5.2
MIN
0.3
0.3
0.7
0.7
1.4
1.4
1.4
1.4
1.8
1.8
1.9
1.9
MAX
6.3
MIN
0.3
0.3
0.5
0.5
1.1
1.1
1.1
1.1
1.5
1.5
1.9
1.9
MAX
5.2
5.2
6
MIN MAX MIN MAX
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
0.4
0.4
0.4
0.4
0.7
0.7
0.9
0.9
1.3
1.3
1.4
1.4
4.2
4.2
0.4
0.4
0.3
0.3
0.4
0.4
0.9
0.9
1.6
1.6
1.2
1.2
4.2
4.2
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
6.3
6.3
5.7
5.6
B
6.3
6
5.7
5.6
9.6
9.5
9.5
7.7
7.7
10.2
10.2
9.1
9.1
9.4
9.4
OE
OE
OE
OE
9.6
9.4
9.4
9.6
5.8
5.6
9.6
5.8
5.6
10.2
10.2
10.3
10.3
10.2
10.2
7.4
10.2
10.2
7.6
7.4
7.6
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 1)
VCCB = 1.5 V VCCB = 1.8 V
± 0.1 V ± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.3 V
PARAMETER
UNIT
TYP
2.9
2.9
3
MIN MAX MIN MAX
MIN MAX
MIN
0.3
0.3
0.3
0.3
0.4
0.4
0.8
0.8
1.6
1.6
1
MAX
3.9
3.9
4.5
4.5
7.2
7.2
4.6
4.6
8.7
8.7
6.9
6.9
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
0.1
0.1
0.6
0.6
1
6
6
0.1
0.1
0.5
0.5
1
4.9
4.9
4.9
4.9
7.3
7.3
7.4
7.4
8.7
8.7
8.7
8.7
0.1
0.1
0.3
0.3
0.6
0.6
0.8
0.8
1.3
1.3
1.2
1.2
3.9
3.9
4.6
4.6
7.3
7.3
5.3
5.3
8.7
8.7
6.9
6.9
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
5.3
5.3
7.4
7.4
9.2
9.2
8.6
8.6
9.9
9.9
B
3
4.4
4.4
4.1
4.1
5.4
5.4
5
OE
OE
OE
OE
1
1
1.2
1.2
1.6
1.6
1.7
1.7
1
1
1.8
1.8
1.6
1.6
5
1
7
Submit Documentation Feedback
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
www.ti.com
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 1)
VCCB = 1.5 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
VCCB = 3.3 V
± 0.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.1 V
± 0.2 V
PARAMETER
UNIT
TYP
2.8
2.8
2.7
2.7
4
MIN
0.1
0.1
0.6
0.6
0.7
0.7
0.9
0.9
1
MAX
5.7
5.7
4.2
4.2
6.5
6.5
8.8
8.8
8.4
8.4
9.4
8.8
MIN
0.1
0.1
0.4
0.4
0.7
0.7
0.8
0.8
1
MAX
4.6
4.6
3.9
3.9
5.2
5.2
7
MIN
0.2
0.2
0.2
0.2
0.6
0.6
0.6
0.6
1
MAX
3.5
3.5
3.4
3.4
4.8
4.8
4.8
4.8
6.2
6.2
6.2
6.2
MIN MAX
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
0.1
0.1
0.2
0.2
0.4
0.4
0.6
0.6
1
3.6
3.6
3.3
3.3
4.8
4.8
4
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
B
OE
OE
OE
OE
4
3.8
3.8
4.7
4.7
4.5
4.5
7
4
8.4
8.4
8.2
8.2
6.6
6.6
5.2
5.2
1
1
1
1
1.5
1.5
1.3
1.3
1.1
1.1
0.9
0.9
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 1)
VCCB = 1.5 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
VCCB = 3.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.1 V
± 0.2 V
± 0.3 V
PARAMETER
UNIT
TYP
2.9
2.9
2.6
2.6
3.8
3.8
3.7
3.7
4.8
4.8
5.3
5.3
MIN
0.1
0.1
0.6
0.6
0.6
0.6
0.8
0.8
0.7
0.7
1.4
1.4
MAX
5.6
5.6
4.2
4.2
8.7
8.7
8.7
8.7
9.3
9.3
9.3
9.3
MIN
0.1
0.1
0.4
0.4
0.6
0.6
0.6
0.6
0.7
0.7
1.2
1.2
MAX
4.5
4.5
3.4
3.4
5.2
5.2
6.8
6.8
8.3
8.3
8.1
8.1
MIN
0.1
0.1
0.2
0.2
0.6
0.6
0.5
0.5
0.7
0.7
1
MAX
3.3
3.3
3
MIN
0.1
0.1
0.1
0.1
0.4
0.4
0.5
0.5
0.7
0.7
0.8
0.8
MAX
2.9
2.9
2.8
2.8
3.8
3.8
3.8
3.8
6.6
6.6
6.2
6.2
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
B
3
3.8
3.8
4.7
4.7
5.6
5.6
6.4
6.4
OE
OE
OE
OE
1
8
Submit Documentation Feedback
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
Operating Characteristics
TA = 25°C
VCCA
=
VCCA
=
VCCA
=
VCCA
=
VCCA =
TEST
CONDITIONS
VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V
PARAMETER
UNIT
TYP
TYP
TYP
TYP
TYP
Outputs
enabled
1
1
1
1.5
2
A to B
B to A
A to B
B to A
Outputs
disabled
1
12
1
1
12.5
1
1
13
1
1
14
1
1
15
1
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
(1)
CpdA
pF
Outputs
enabled
Outputs
disabled
Outputs
enabled
12
1
12.5
1
13
1
14
1
15
1
Outputs
disabled
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
(1)
CpdB
pF
Outputs
enabled
1
1
1
1
2
Outputs
disabled
1
1
1
1
1
(1) Power dissipation capacitance per transceiver
9
Submit Documentation Feedback
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES577B–JUNE 2004–REVISED FEBRUARY 2006
www.ti.com
PARAMETER MEASUREMENT INFORMATION
2 × V
CCO
TEST
S1
S1
R
L
Open
GND
t
Open
pd
From Output
Under Test
t
t
/t
/t
2 × V
CCO
GND
PLZ PZL
PHZ PZH
C
L
R
L
(see Note A)
t
w
LOAD CIRCUIT
V
CCI
V
CCI
/2
V
CCI
/2
Input
C
L
V
TP
R
L
V
CCO
0 V
1.2 V
2 kΩ
2 kΩ
2 kΩ
2 kΩ
2 kΩ
0.1 V
0.1 V
0.15 V
0.15 V
0.3 V
15 pF
15 pF
15 pF
15 pF
15 pF
VOLTAGE WAVEFORMS
PULSE DURATION
1.5 V ± 0.1 V
1.8 V ± 0.15 V
2.5 V ± 0.2 V
3.3 V ± 0.3 V
V
CCA
Output
Control
(low-level
enabling)
V /2
CCA
V
CCA
/2
t
0 V
t
PZL
PLZ
V
V
CCO
Output
Waveform 1
V
CCI
V
/2
/2
CCO
Input
V
CCI
/2
V
CCI
/2
V
+ V
OL
TP
S1 at 2 × V
CCO
OL
0 V
(see Note B)
t
t
PZH
PHZ
t
t
PHL
PLH
Output
Waveform 2
S1 at GND
V
OH
V
OH
V
OH
− V
TP
V
CCO
Output
V /2
CCO
V
CCO
/2
(see Note B)
0 V
V
OL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. C includes probe and jig capacitance.
L
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRRv10 MHz, Z = 50 Ω, dv/dt ≥ 1 V/ns,
O
dv/dt ≥1 V/ns.
D. The outputs are measured one at a time, with one transition per measurement.
E.
F.
G.
H.
I.
t
t
t
V
V
and t
and t
and t
are the same as t
.
dis
.
PLZ
PZL
PLH
PHZ
PZH
are the same as t
en
are the same as t .
pd
PHL
is the V associated with the input port.
CC
CCI
is the V associated with the output port.
CCO
CC
Figure 1. Load Circuit and Voltage Waveforms
10
Submit Documentation Feedback
PACKAGE OPTION ADDENDUM
www.ti.com
6-Dec-2006
PACKAGING INFORMATION
Orderable Device
74AVCH4T245DGVRE4
74AVCH4T245PWRE4
74AVCH4T245PWTE4
74AVCH4T245RGYRG4
SN74AVCH4T245D
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
TVSOP
DGV
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
TSSOP
TSSOP
QFN
PW
PW
RGY
D
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
1000 Green (RoHS & CU NIPDAU Level-2-260C-1YEAR
no Sb/Br)
SOIC
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AVCH4T245DE4
SN74AVCH4T245DGVR
SN74AVCH4T245DR
SN74AVCH4T245DRE4
SN74AVCH4T245DT
SN74AVCH4T245DTE4
SN74AVCH4T245PW
SN74AVCH4T245PWE4
SN74AVCH4T245PWR
SN74AVCH4T245PWT
SN74AVCH4T245RGYR
SOIC
D
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
TVSOP
SOIC
DGV
D
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SOIC
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SOIC
D
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SOIC
D
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
TSSOP
TSSOP
TSSOP
TSSOP
QFN
PW
PW
PW
PW
RGY
90 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
90 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
1000 Green (RoHS & CU NIPDAU Level-2-260C-1YEAR
no Sb/Br)
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
6-Dec-2006
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 2
MECHANICAL DATA
MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000
DGV (R-PDSO-G**)
PLASTIC SMALL-OUTLINE
24 PINS SHOWN
0,23
0,13
M
0,07
0,40
24
13
0,16 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
0°–ā8°
0,75
1
12
0,50
A
Seating Plane
0,08
0,15
0,05
1,20 MAX
PINS **
14
16
20
24
38
48
56
DIM
A MAX
A MIN
3,70
3,50
3,70
3,50
5,10
4,90
5,10
4,90
7,90
7,70
9,80
9,60
11,40
11,20
4073251/E 08/00
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side.
D. Falls within JEDEC: 24/48 Pins – MO-153
14/16/20/56 Pins – MO-194
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MECHANICAL DATA
MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999
PW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PINS SHOWN
0,30
0,19
M
0,10
0,65
14
8
0,15 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
1
7
0°–8°
A
0,75
0,50
Seating Plane
0,10
0,15
0,05
1,20 MAX
PINS **
8
14
16
20
24
28
DIM
3,10
2,90
5,10
4,90
5,10
4,90
6,60
6,40
7,90
9,80
9,60
A MAX
A MIN
7,70
4040064/F 01/97
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to
discontinue any product or service without notice. Customers should obtain the latest relevant information
before placing orders and should verify that such information is current and complete. All products are sold
subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent
TI deems necessary to support this warranty. Except where mandated by government requirements, testing
of all parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible
for their products and applications using TI components. To minimize the risks associated with customer
products and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent
right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine,
or process in which TI products or services are used. Information published by TI regarding third-party
products or services does not constitute a license from TI to use such products or services or a warranty or
endorsement thereof. Use of such information may require a license from a third party under the patents or
other intellectual property of the third party, or a license from TI under the patents or other intellectual
property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices.
Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not
responsible or liable for such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for
that product or service voids all express and any implied warranties for the associated TI product or service
and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Amplifiers
Data Converters
DSP
Interface
Applications
Audio
Automotive
Broadband
Digital Control
Military
amplifier.ti.com
dataconverter.ti.com
dsp.ti.com
interface.ti.com
logic.ti.com
www.ti.com/audio
www.ti.com/automotive
www.ti.com/broadband
www.ti.com/digitalcontrol
www.ti.com/military
Logic
Power Mgmt
Microcontrollers
Low Power Wireless
power.ti.com
microcontroller.ti.com
www.ti.com/lpw
Optical Networking
Security
Telephony
Video & Imaging
Wireless
www.ti.com/opticalnetwork
www.ti.com/security
www.ti.com/telephony
www.ti.com/video
www.ti.com/wireless
Mailing Address:
Texas Instruments
Post Office Box 655303 Dallas, Texas 75265
Copyright © 2007, Texas Instruments Incorporated
相关型号:
SN74AVCH4T245RSVR
4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH4T245_07
4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH4T245_08
4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH4T245_10
4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH4T245_101
4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH4T245_18
4-Bit Dual-Supply Bus Transceiver With Configurable Level-Shifting, Voltage Translation, and 3-State Outputs
TI
SN74AVCH8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VILTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH8T245DGVR
8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VILTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH8T245PW
8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VILTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH8T245PWE4
8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VILTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
SN74AVCH8T245PWG4
8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
TI
©2020 ICPDF网 联系我们和版权申明