型号 功能描述 生产厂家 企业 LOGO 操作
74F191PMQB

Up/Down Binary Counter with Preset and Ripple Clock

文件:175.58 Kbytes Page:10 Pages

NSC

国半

Up/down binary counter with reset and ripple clock

DESCRIPTION The 74F191 is a 4-bit binary counter. It contains four edge-triggered master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operations. FEATURES • High speed –125MHz typical fMAX • Synchronous, reversi

PHILIPS

飞利浦

Up/Down Binary Counter with Preset and Ripple Clock

General Description The 74F191 is a reversible modulo-16 binary counter featuring synchronous counting and asynchronous presetting. The preset feature allows the 74F191 to be used in programmable dividers. The Count Enable input, the Terminal Count output and Ripple Clock output make possible a v

FAIRCHILD

仙童半导体

Up/Down Binary Counter with Preset and Ripple Clock

文件:175.58 Kbytes Page:10 Pages

NSC

国半

Up/Down Binary Counter with Preset and Ripple Clock

文件:185.58 Kbytes Page:12 Pages

FAIRCHILD

仙童半导体

Up/Down Binary Counter with Preset and Ripple Clock

文件:196.68 Kbytes Page:10 Pages

NSC

国半

74F191PMQB产品属性

  • 类型

    描述

  • 型号

    74F191PMQB

  • 制造商

    NSC

  • 制造商全称

    National Semiconductor

  • 功能描述

    Up/Down Binary Counter with Preset and Ripple Clock

更新时间:2026-3-11 17:45:00
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