位置:MM74HC299 > MM74HC299详情

MM74HC299中文资料

厂家型号

MM74HC299

文件大小

143.57Kbytes

页面数量

6

功能描述

8-Bit TRI-STATEÉ Universal Shift Register

8-Bit TRI-STATE Universal Shift Register

数据手册

下载地址一下载地址二到原厂下载

简称

NSC美国国家半导体

生产厂商

National Semiconductor (TI)

中文名称

美国国家半导体公司官网

MM74HC299数据手册规格书PDF详情

General Description

This 8-bit TRI-STATE shift/storage register utilizes advanced

silicon-gate CMOS technology. Along with the low power

consumption and high noise immunity of standard CMOS

integrated circuits, it has the ability to drive 15 LS-TTL

loads. This circuit also features operating speeds comparable to the equivalent low power Schottky device.

The MM54HC299/MM74HC299 features multiplexed inputs/outputs to achieve full 8-bit data handling in a single

20-pin package. Due to the large output drive capability and

TRI-STATE feature, this device is ideally suited for interfacing with bus lines in a bus oriented system.

Two function select inputs and two output control inputs are

used to choose the mode of operation as listed in the function table. Synchronous parallel loading is accomplished by

taking both function select lines S0 and S1 high. This places

the TRI-STATE outputs in a high impedance state, which

permits data applied to the input/output lines to be clocked

into the register. Reading out of the register can be done

while the outputs are enabled in any mode. A direct overriding CLEAR input is provided to clear the register whether

the outputs are enabled or disabled.

The 54HC/74HC logic family is functionally as well as pinout

compatible with the standard 54LS/74LS logic family. All

inputs are protected from damage due to static discharge by

internal diode clamps to VCC and ground.

Features

Y Typical operating frequency 40 MHz

Y Typical propagation delay: 20 ns

Y Low quiescent current: 80 mA maximum (74HC)

Y High output drive for bus applications

Y Low quiescent current: 1 mA maximum

MM74HC299产品属性

  • 类型

    描述

  • 型号

    MM74HC299

  • 制造商

    NSC

  • 制造商全称

    National Semiconductor

  • 功能描述

    8-Bit TRI-STATE Universal Shift Register

更新时间:2025-10-4 16:06:00
供应商 型号 品牌 批号 封装 库存 备注 价格
NSC
10
全新原装 货期两周
NSC
23+
SO-14
7000
绝对全新原装!100%保质量特价!请放心订购!
TI(德州仪器)
24+
SOP20300mil
907
只做原装,提供一站式配单服务,代工代料。BOM配单
NS
24+
SOP7.2mm
1000
NATIONALSEM
24+
原装进口原厂原包接受订货
6577
原装现货假一罚十
NS
25+
SOP
2987
只售原装自家现货!诚信经营!欢迎来电!
NS
23+
SOP20
8650
受权代理!全新原装现货特价热卖!
NS/国半
23+
SOP20
50000
全新原装正品现货,支持订货
MM74HC299N
132
132
NS
23+
SOP20
11020
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