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M74HC323B1R中文资料意法半导体数据手册PDF规格书

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厂商型号

M74HC323B1R

功能描述

CLEAR HC299 /HC323 8BITPIPOSHIFTREGISTERWITHSYNCHRONOUS

文件大小

306.13 Kbytes

页面数量

15

生产厂商

STMICROELECTRONICS

中文名称

意法半导体

网址

网址

数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-12-12 12:01:00

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M74HC323B1R规格书详情

DESCRIPTION

The M54/74HC299/323 are high speed CMOS 8-BIT PIPO SHIFT REGISTERS (3-STATE) fabri cated with silicon gate C2MOS technology.

They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power consumption.

These devices have four modes (HOLD, SHIFT LEFT,SHIFT RIGHTand LOADDATA). Each mode is chosen by two function select inputs (S0, S1).

When one or both enable inputs, (G1, G2) are high, the eight input/output terminals are in the high impedance state ; however sequential operation or clearing of the register is not affected.

Clear function on the HC299 is asynchronous to CLOCK, while the HC323 is cleared synchronous to clock.

All inputs are equipped with protection circuits against static discharge and transient excess volt age.

■ HIGH SPEED

fMAX = 42 MHz (TYP.) AT VCC = 5V

■ LOW POWER DISSIPATION

ICC = 4 µA (MAX.) AT TA = 25 °C

■ HIGH NOISE IMMUNITY

VNIH = VNIL = 28 VCC (MIN.)

■ OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS FOR QA’ TO QH’

15 LSTTL LOADS FOR QA TO QH

■ SYMMETRICAL OUTPUT IMPEDANCE

|IOH| = IOL = 6 mA (MIN.) FOR QA, TO QH,

|IOH| = IOL = 4 mA (MIN.) FOR QA, TO QH

■ BALANCED PROPAGATION DELAYS

tPLH = tPHL

■ WIDE OPERATING VOLTAGE RANGE

VCC (OPR) = 2 V TO 6 V

■ PIN AND FUNCTION COMPATIBLE WITH 54/74LS299

供应商 型号 品牌 批号 封装 库存 备注 价格
STMicroelectronics
25+
N/A
7500
原装现货17377264928微信同号
询价
ST
2511
99
16900
电子元器件采购降本30%!原厂直采,砍掉中间差价
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STM
22+
SMD
30000
只做原装正品
询价
ST
25+
DIP14
2987
只售原装自家现货!诚信经营!欢迎来电!
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ST
22+
CDIP
12245
现货,原厂原装假一罚十!
询价
ST
25+
QFP
3200
全新原装、诚信经营、公司现货销售!
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STMicroelectronics
18+
ICGATEORQUAD2INP14-DIP
6800
公司原装现货
询价
ST
25+
99
16900
原装,请咨询
询价
ST
25+
DIP14
5
百分百原装正品 真实公司现货库存 本公司只做原装 可
询价
ST/意法
23+
DIP14
13000
原厂授权一级代理,专业海外优势订货,价格优势、品种
询价