Octal Bus Transceivers
SN74AHC245Q
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SGDS018 – FEBRUARY 2002
D Q Devices Meet Automotive Performance
...
Description
SN74AHC245Q
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SGDS018 – FEBRUARY 2002
D Q Devices Meet Automotive Performance
Requirements
D Customer-Specific Configuration Control
Can Be Supported Along With Major-Change Approval
D Operating Range 2-V to 5.5-V VCC D Latch-Up Performance Exceeds 250 mA Per
JESD 17
description
The SN74AHC245Q octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.
DW OR PW PACKAGE (TOP VIEW)
DIR A1 A2 A3 A4 A5 A6 A7 A8
GND
1 2 3 4 5 6 7 8 9 10
20 VCC 19 OE 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8
This device allows data transmission 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 device so that the buses are effectively isolated.
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.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE PART NUMBER
TOP-SIDE MARKING
–40°C to 125°C
SOIC – DW TSSOP – PW
Tape and reel Tape and reel
SN74AHC245QDWR SN74AHC245QPWR
AHC245Q HA245Q
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.
FUNCTION TABLE (each t...
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