MC74HC253中文资料摩托罗拉数据手册PDF规格书

Dual 4-lnput Data Selector/Multiplexer with 3-State Outputs

High–Performance Silicon–Gate CMOS

The MC74HC253 is identical in pinout to the LS253. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.

The Address inputs select one of four Data inputs from each multiplexer. Each multiplexer has an active–low Output Enable control and a three–state noninverting output.

The HC253 is similar in function to the HC153 which does not have three–state outputs.

• Output Drive Capability: 10 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2 to 6 V

• Low Input Current: 1 µA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance with the Requirements Defined by JEDEC Standard No 7A

• Chip Complexity 108 FETs or 27 Equivalent Gates