Datasheet4U Logo Datasheet4U.com

74191 Datasheet - National Semiconductor

74191 Synchronous Up/Down 4-Bit Binary Counter

This circuit is a synchronous reversible up down counter The 191 is a 4-bit binary counter Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change simultaneously when so instructed by the steering logic This mode of operation eliminates the output.

74191 Features

* Y Y Y Y Y Y Y Single down up count control line Count enable control input Ripple clock output for cascading Asynchronously presettable with load control Parallel outputs Cascadable for n-bit applications Alternate Military Aerospace device (54191) is available Contact a National Semiconductor Sale

74191 Datasheet (129.85 KB)

Preview of 74191 PDF
74191 Datasheet Preview Page 2 74191 Datasheet Preview Page 3

Datasheet Details

Part number:

74191

Manufacturer:

National Semiconductor

File Size:

129.85 KB

Description:

Synchronous up/down 4-bit binary counter.

📁 Related Datasheet

74190 Synchronous Decade Up/Down Counters (National Semiconductor)

74190 4 BIT SYNCHRONOUS UP/DOWN COUNTERS (SGS-THOMSON)

74190 Synchronous Up/Down Counters (Texas Instruments)

74191 Synchronous 4-Bit Up/Down Counter (Fairchild Semiconductor)

74191 4 BIT SYNCHRONOUS UP/DOWN COUNTERS (SGS-THOMSON)

74191 Synchronous Up/Down Counters (Texas Instruments)

74192 SYNCHRONOUS UP/DOWN DECADE/BINARY COUNTER (STMicroelectronics)

74192 Up / Down Decade Counter (National Semiconductor)

TAGS

74191 Synchronous Down 4-Bit Binary Counter National Semiconductor

74191 Distributor