Octal 3-state Inverting Bus Transceiver High-performance Silicon-gate Cmos Korea Corp.

The KK74HC640A 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 KK74HC640A 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. Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2.0 to 6.0 V Low Input Current: 1.0 A High Noise Immunity Characteristic of CMOS Devices By Kodenshi Korea Corp.
KK74HC640A 's PackagesKK74HC640A 's pdf datasheet

KK74HC640A Pinout, Pinouts
KK74HC640A pinout,Pin out
This is one package pinout of KK74HC640A,If you need more pinouts please download KK74HC640A's pdf datasheet.

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