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SN74AVC2T245 Datasheet, PDF (3/14 Pages) Texas Instruments – DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
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SN74AVC2T245
www.ti.com...................................................................................................................................................................................................... SCES692 – JUNE 2008
TYPICAL APPLICATION
1.8 V
3.0 V
Processor
UART
Tx
Rx
1 kΩ
VCCA
OE
DIR1
A1
A2
DIR2
VCCB
B1
B2
SN74AVC2T245
Peripheral
Rx
Tx
GND
Figure 1. Typical Application of the SN74AVC2T245
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
VCCA
VCCB
Supply voltage range
VI Input voltage range(2)
VO
Voltage range applied to any output in the high-impedance or
power-off state(2)
VO Voltage range applied to any output in the high or low state(2)(3)
IIK Input clamp current
IOK Output clamp current
IO Continuous output current
Continuous current through VCCA, VCCB, or GND
θJA Package thermal impedance
Tstg Storage temperature range
I/O ports (A port)
I/O ports (B port)
Control inputs
A port
B port
A port
B port
VI < 0
VO < 0
D package(4)
DB package(4)
DGV package(4)
PW package(4)
RGY package(5)
MIN
MAX
–0.5
4.6
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
–65
4.6
4.6
4.6
4.6
4.6
VCCA + 0.5
VCCB + 0.5
–50
–50
±50
±100
73
82
120
108
39
150
UNIT
V
V
V
V
mA
mA
mA
mA
°C/W
°C
(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.
Copyright © 2008, Texas Instruments Incorporated
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