Octal 3-State Inverting Bus Transceiver

The IN74HC640A is identical in pinout to the LS/ALS640. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The IN74HC640A is a 3-state transceiver that is used for 2-way asynchronous Communication between data buses. The device has an active-low Output Enable pin, which is used to place the I/O ports into high-impedance states. The Direction control determines whether data flows from A to B or from B to A. By Integral Corp.
IN74HC640A 's PackagesIN74HC640A 's pdf datasheet
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IN74HC640A Pinout, Pinouts
IN74HC640A pinout,Pin out
This is one package pinout of IN74HC640A,If you need more pinouts please download IN74HC640A's pdf datasheet.

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