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M74HC640M1R中文资料意法半导体数据手册PDF规格书

M74HC640M1R
厂商型号

M74HC640M1R

功能描述

OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS (INVERTING)

文件大小

307.06 Kbytes

页面数量

11

生产厂商 STMicroelectronics
企业简称

STMICROELECTRONICS意法半导体

中文名称

意法半导体集团官网

原厂标识
STMICROELECTRONICS
数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-8-2 11:57:00

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M74HC640M1R规格书详情

DESCRIPTION

The M54/74HC245, HC640 and HC643 utilise silicon gate C2MOS technology to achive operating speeds equivalent to LSTTL devices.

Along with the low power dissipation and high noise immunity of standards C2MOS integrated circuit, it possesses the capability to drive 15 LSTTL loads.

These IC’s are intended for two-way asynchronous communication between data buses, and the direction of data trasmission is determined by DIR input. The enable input (G) can be used to disable the device so that the buses are effectively isolated.

All input are equipped with protection circuits against staticdischarge and transient discharge and transient excess voltage.

IT IS PROHIBITED TO APPLY A SIGNAL TO A BUS TERMINAL WHEN IT IS IN OUTPUT MODE AND WHEN A BUS THERMINAL IS FLOATING (HIGH IMPEDANCE STATE), IT IS REQUESTED TO FIX THE INPUT LEVEL BY MEANS OF EXTERNAL PULL DOWN OR PULL UP RESISTOR.

■ HIGH SPEED

tPD = 10 ns (TYP.) at VCC = 5V

■ LOW POWER DISSIPATION

ICC = 4 µA (MAX.) at TA = 25 oC

■ HIGH NOISE IMMUNITY

VNIH = VINL = 28 VCC (MIN.)

■ OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS

■ SYMMETRICAL OUTPUT IMPEDANCE

|IOH| = IOL = 6 mA (MIN)

■ BALANCED PROPAGATION DELAYS tPLH = tPHL

■ WIDE OPERATING VOLTAGE RANGE

VCC (OPR) = 2 V TO 6 V

■ PIN AND FUNCTION COMPATIBLE WITH 54/74LS245/640/643

供应商 型号 品牌 批号 封装 库存 备注 价格
SGS
24+
DIP20
65200
一级代理/放心采购
询价
SGS
2022+
DIP20
20000
只做原装进口现货.假一罚十
询价
ST
2511
DIP20
16900
电子元器件采购降本 30%!盈慧通原厂直采,砍掉中间差价
询价
SGS
24+
DIP20
9600
原装现货,优势供应,支持实单!
询价
SGS
23+
DIP
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
ST
10+
DIP-24
7800
全新原装正品,现货销售
询价
ST
23+
DIP20
16900
正规渠道,只有原装!
询价
SGS
2447
DIP20
100500
一级代理专营品牌!原装正品,优势现货,长期排单到货
询价
ST/意法
23+
DIP-24
50000
全新原装正品现货,支持订货
询价
SGS
22+
DIP20
26883
原装正品现货
询价