74F191

更新时间： 2024-11-10 22:45:55

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		计数器时钟
页数	文件大小	规格书
7页	80K
描述
Up/Down Binary Counter with Preset and Ripple Clock

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数据手册

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74F191 数据手册

April 1988

Revised July 1999

74F191

Up/Down Binary Counter with Preset and Ripple Clock

General Description

Features

The 74F191 is a reversible modulo-16 binary counter fea-

turing synchronous counting and asynchronous presetting.

The preset feature allows the 74F191 to be used in pro-

grammable dividers. The Count Enable input, the Terminal

Count output and Ripple Clock output make possible a

variety of methods of implementing multistage counters. In

the counting modes, state changes are initiated by the ris-

ing edge of the clock.

■ High-Speed—125 MHz typical count frequency

■ Synchronous counting

■ Asynchronous parallel load

■ Cascadable

Ordering Code:

Order Number Package Number

Package Description

74F191SC

74F191SJ

74F191PC

M16A

M16D

N16E

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbols

Connection Diagram

IEEE/IEC

DS009495

www.fairchildsemi.com

12 3 4 5 6 7

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与74F191相关器件

型号	品牌	获取价格	描述	数据表
74F191_07	FAIRCHILD	获取价格	Up/Down Binary Counter with Preset and Ripple Clock
74F191D	YAGEO	获取价格	Binary Counter, F/FAST Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional,
74F191DC	ETC	获取价格	Synchronous Up/Down Counter
74F191DCQB	FAIRCHILD	获取价格	Up/Down Binary Counter with Preset and Ripple Clock
74F191DCQM	FAIRCHILD	获取价格	Binary Counter, Synchronous, Bidirectional, TTL, CDIP16,
74F191DCQR	FAIRCHILD	获取价格	Binary Counter, F/FAST Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional,
74F191DCX	FAIRCHILD	获取价格	Up/Down Binary Counter with Preset and Ripple Clock
74F191DMQB	FAIRCHILD	获取价格	Up/Down Binary Counter with Preset and Ripple Clock
74F191DMX	FAIRCHILD	获取价格	Up/Down Binary Counter with Preset and Ripple Clock
74F191FC	FAIRCHILD	获取价格	Binary Counter, Synchronous, Bidirectional, TTL, CDFP16,