MM74HC299J

更新时间： 2024-11-24 22:35:47

品牌	Logo	应用领域
美国国家半导体 - NSC		移位寄存器
页数	文件大小	规格书
7页	185K
描述
8-Bit TRI-STATE Universal Shift Register

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MM74HC299J 数据手册

January 1988

MM54HC299/MM74HC299

8-Bit TRI-STATE Universal Shift Register

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 compara-

ble to the equivalent low power Schottky device.

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 overrid-

ing 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

The MM54HC299/MM74HC299 features multiplexed in-

puts/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 interfac-

ing with bus lines in a bus oriented system.

internal diode clamps to V

and ground.

Features

Two function select inputs and two output control inputs are

used to choose the mode of operation as listed in the func-

tion 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

Typical operating frequency 40 MHz

Typical propagation delay: 20 ns

Low quiescent current: 80 mA maximum (74HC)

High output drive for bus applications

Low quiescent current: 1 mA maximum

Connection Diagram

Dual-In-Line Package

TL/F/5207–1

Order Number MM54HC299 or MM74HC299

TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.

1995 National Semiconductor Corporation

TL/F/5207

RRD-B30M105/Printed in U. S. A.

12 3 4 5 6 7

中文翻译

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MM74HC299J 替代型号

型号	品牌	替代类型	描述	数据表
M74HC299B1R	STMICROELECTRONICS	功能相似	HC323 8BITPIPOSHIFTREGISTERWITHSYNCHRONOUS CLEAR HC299 8BITPIPOSHIFTREGISTERWITHASYNCHRONO

与MM74HC299J相关器件

型号	品牌	获取价格	描述	数据表
MM74HC299J/A+	TI	获取价格	IC,SHIFT REGISTER,HC-CMOS,DIP,20PIN,CERAMIC
MM74HC299N	NSC	获取价格	8-Bit TRI-STATE Universal Shift Register
MM74HC299N/A+	NSC	获取价格	IC,SHIFT REGISTER,HC-CMOS,DIP,20PIN,PLASTIC
MM74HC299N/B+	NSC	获取价格	IC,SHIFT REGISTER,HC-CMOS,DIP,20PIN,PLASTIC
MM74HC299WM	ROCHESTER	获取价格	HC/UH SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PD
MM74HC299WM	NSC	获取价格	IC HC/UH SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT,
MM74HC299WM/A+	NSC	获取价格	IC,SHIFT REGISTER,HC-CMOS,SOP,20PIN,PLASTIC
MM74HC299WMX	TI	获取价格	HC/UH SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PD
MM74HC299WMX	ROCHESTER	获取价格	HC/UH SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PD
MM74HC30	NSC	获取价格	8-Input NAND Gate

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