M74HC7645

更新时间： 2024-11-01 22:57:55

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		总线收发器
页数	文件大小	规格书
10页	259K
描述
OCTAL BUS TRANSCEIVER (3-STATE):HC7645 NONINVERTING HC7640 INVERTING ,HC7643 INVERTING/NONINVERTING

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中文翻译

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数据手册

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M74HC7645 数据手册

M54HC7245/7640/7643/7645

M74HC7245/7640/7643/7645

OCTAL BUS TRANSCEIVER (3-STATE): HC7645 NON INVERTING

HC7640 INVERTING , HC7643 INVERTING/NON INVERTING

HIGH SPEED

_PD= 12 ns (TYP.) at V_CC= 5V

LOW POWER DISSIPATION

I_CC= 4 µA (MAX.) at T_A= 25 ^oC

HIGH NOISE IMMUNITY

V_H= 1.1 (TYP.) at V_CC= 5V

OUTPUT DRIVE CAPABILITY

15 LSTTL LOADS

SYMMETRICAL OUTPUT IMPEDANCE

|I_OH| = I_OL= 6 mA (MIN)

BALANCED PROPAGATION DELAYS

t_PLH= t_PHL

WIDE OPERATING RANGE

V_CC(OPR) = 2V to 6V

PIN AND FUNCTION COMPATIBLE

WITH 54/74LS245/640/643

B1R

(Plastic Package)

F1R

(Ceramic Package)

M1R

(Micro Package)

C1R

(Chip Carrier)

ORDER CODES :

M54HCXXXXF1R

M74HCXXXXB1R

M74HCXXXXM1R

M74HCXXXXC1R

DESCRIPTION

TheM54/74HC7245 HC7640, HC7643 and HC7645

utilise silicon gate C²MOS technology to achive

operating speeds equivalent to LSTTL devices.

Along with the low power dissipation and high noise

immunity of standads 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. Theenableinput(G)canbeused todisable the

device so that the buses are effectively isolated.

The HC7245/640/7643/7645 have the same pin

configuration and function as the HC245/640/643

and they have a hysteresis characteristics with each

input, so HC7245/7640/7643/7645 can be used as a

line receiver, etc. All input are equipped with

protection circuits against static discharge and

transient excess voltage.

IT IS PROHIBITEDTOAPPLY A SIGNAL TOA 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.

PIN CONNECTION (top view)

HC7640

HC7643

HC7645/HC7245

HC7245 is electrically and funcutionally the same as the HC7645

January 1994

1/10

12 3 4 5 6 7...10

中文翻译

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与M74HC7645相关器件

型号	品牌	获取价格	描述	数据表
M74HC7645B1R	STMICROELECTRONICS	获取价格	OCTAL BUS TRANSCEIVER (3-STATE):HC7645 NONINVERTING HC7640 INVERTING ,HC7643 INVERTING/NON
M74HC7645C1R	STMICROELECTRONICS	获取价格	OCTAL BUS TRANSCEIVER (3-STATE):HC7645 NONINVERTING HC7640 INVERTING ,HC7643 INVERTING/NON
M74HC7645F1R	STMICROELECTRONICS	获取价格	OCTAL BUS TRANSCEIVER (3-STATE):HC7645 NONINVERTING HC7640 INVERTING ,HC7643 INVERTING/NON
M74HC7645M1R	STMICROELECTRONICS	获取价格	OCTAL BUS TRANSCEIVER (3-STATE):HC7645 NONINVERTING HC7640 INVERTING ,HC7643 INVERTING/NON
M74HC7645TTR	STMICROELECTRONICS	获取价格	HC/UH SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, TSSOP-20
M74HC76B1R	STMICROELECTRONICS	获取价格	DUAL J-K FLIP FLOP WITH PRESET AND CLEAR
M74HC76C1R	STMICROELECTRONICS	获取价格	DUAL J-K FLIP FLOP WITH PRESET AND CLEAR
M74HC76DP	MITSUBISHI	获取价格	J-K Flip-Flop, 2-Func, Negative Edge Triggered, CMOS, PDSO16
M74HC76FP	MITSUBISHI	获取价格	J-K Flip-Flop, 2-Func, Negative Edge Triggered, CMOS, PDSO16
M74HC76M1R	STMICROELECTRONICS	获取价格	DUAL J-K FLIP FLOP WITH PRESET AND CLEAR

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