TC74HC640中文资料东芝数据手册PDF规格书

OCTAL BUS TRANSCEIVER

TC74HC245AP / AF / AFW 3-STATE, NON-INVERTING

TC74HC640AP / AF 3-STATE, INVERTING

The TC74HC245A, 640A are high speed CMOS OCTAL BUS TRANSCEIVERs fabricated with silicon gate C2MOS technology.

They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.

They are intended for two-way asynchronous communication between data busses. The direction of data transmission is determined by the level of the DIR input.

The enable input ( G ) can be used to disable the device so that the busses are effectively isolated.

All inputs are equipped with protection circuits against static discharge or transient excess voltage.