Dual 4−Stage Binary Ripple Counter High−Performance Silicon−Gate CMOS

The MC74HC393A is identical in pinout to the LS393. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.

This device consists of two independent 4−bit binary ripple counters with parallel outputs from each counter stage. A ÷ 256 counter can be obtained by cascading the two binary counters.

Features

• Output Drive Capability: 10 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2.0 to 6.0 V

• Low Input Current: 1 μA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance with the JEDEC Standard No. 7A Requirements

• Chip Complexity: 236 FETs or 59 Equivalent Gates

• Pb−Free Packages are Available