MM54HCT191, MM54HCT190 - Synchronous Binary Up/Down Counters

National Semiconductor

The MM54HCT191 by National Semiconductor is a Synchronous Binary Up/Down Counters. Below is the official datasheet preview.

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MM54HCT191 Synchronous Binary Up/Down Counters by National Semiconductor - Datasheet Preview — Official preview page of the **MM54HCT191** Synchronous Binary Up/Down Counters datasheet (National Semiconductor).

Datasheet Details

Part number	MM54HCT191, MM54HCT190
Manufacturer	National Semiconductor
File Size	179.17 KB
Description	Synchronous Binary Up/Down Counters
Datasheet	MM54HCT190_NationalSemiconductor.pdf
Note	This datasheet PDF includes multiple part numbers: MM54HCT191, MM54HCT190. Please refer to the document for exact specifications by model.
Additional preview pages of the MM54HCT191 datasheet.

MM54HCT191 Product details

Description

These high speed synchronous counters utilize advanced silicon-gate CMOS technology They possess the high noise immunity and low power consumption of CMOS technology along with the speeds of low power Schottky TTL These circuits are synchronous reversible up down counters The MM54HCT191 MM74HCT191 are 4-bit binary counters and the MM54HCT190 MM74HCT190 are BCD counters Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change simultaneously when

Features

Y Y Y Y Level changes on Enable or Down Up can be made regardless of the level of the clock Low quiescent supply current 80 mA maximum (74HCT Series) Low input current 1 mA maximum TTL compatible inputs Connection Diagram Dual-In-Line Package Truth Table Load H H L H Enable G L L X H Down Up L H X X Clock Function Count Up Count Down Load No Change u u X X Order Number MM54HCT190 191 or MM74HCT190 191 TL F 5744.
1 C1995 National Semiconductor Corporation TL F 5744 RRD-B30M105.

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Published: Dec 19, 2013 |