74HC161 Datasheet – Synchronous 4-bit Binary Counter ( PDF )

Part Number: 74HC161

Function: Presettable synchronous 4-bit binary counter, asynchronous reset

Package: DIP, SOP 16 Pin Type

Manufacturer: Philips Electronics ( https://www.nxp.com/ )


74HC161 datasheet



The 74HC161 / 74HCT161 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The devices are synchronous presettable binary counters which feature an internal look-ahead carry and can be used for high-speed counting. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock (CP).


1. Synchronous counting and loading

2. Two count enable inputs for n-bit cascading

3. Positive-edge triggered clock

4. Asynchronous reset

5. Output capability : standard

6. ICC category : MSI

Other data sheets are available within the file:

74161, 74HC161D, 74HC161DB, 74HC161NB


74HC161 Datasheet PDF Download

74HC161 pdf