Datasheet > CD54HC640

CD54HC640

更新时间： 2024-11-22 21:58:27

品牌	Logo	应用领域
德州仪器 - TI		总线收发器
页数	文件大小	规格书
11页	268K
描述
High-Speed CMOS Logic Octal Three-State Bus Transceiver, Inverting

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替代型号

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CD54HC640 数据手册

CD54HC640, CD74HC640,

CD54HCT640, CD74HCT640

Data sheet acquired from Harris Semiconductor

SCHS192B

High-Speed CMOS Logic

Octal Three-State Bus Transceiver, Inverting

January 1998 - Revised May 2003

Features

Description

• Buffered Inputs

The ’HC640 and ’HCT640 silicon-gate CMOS three-state

bidirectional inverting and non-inverting buffers are intended

for two-way asynchronous communication between data

buses. They have high drive current outputs which enable

high-speed operation when driving large bus capacitances.

These circuits possess the low power dissipation of CMOS

• Three-State Outputs

[ /Title

(CD74

HC640

• Applications in Multiple-Data-Bus Architecture

• Fanout (Over Temperature Range)

- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads

circuits, and have speeds comparable to low power Schottky

CD74

HCT64

/Sub-

ject

(High

Speed

CMOS

- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads TTL circuits. They can drive 15 LSTTL loads. The ’HC640

and ’HCT640 are inverting buffers.

• Wide Operating Temperature Range . . . -55 C to 125 C

• Balanced Propagation Delay and Transition Times

The direction of data ﬂow (A to B, B to A) is controlled by the

DIR input.

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

Outputs are enabled by a low on the Output Enable input

(OE); a high OE puts these devices in the high impedance

mode.

• HC Types

- 2V to 6V Operation

Ordering Information

- High Noise Immunity: N = 30%, N = 30% of V

IL IH CC

at V

= 5V

TEMP. RANGE

PART NUMBER

CD54HC640F3A

CD54HCT640F3A

CD74HC640E

( C)

PACKAGE

20 Ld CERDIP

20 Ld PDIP

• HCT Types

- 4.5V to 5.5V Operation

-55 to 125

- Direct LSTTL Input Logic Compatibility,

V = 0.8V (Max), V = 2V (Min)

IL IH

- CMOS Input Compatibility, I ≤ 1µA at V , V

OL OH

CD74HC640M

20 Ld SOIC

Pinout

CD74HCT640E

CD74HCT640M

20 Ld PDIP

CD54HC640, CD54HCT640

(CERDIP)

20 Ld SOIC

CD74HC640, CD74HCT640

(PDIP, SOIC)

TOP VIEW

DIR

18 B0

17 B1

16 B2

15 B3

14 B4

13 B5

GND 10

11 B7

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

12 3 4 5 6 7...11

中文翻译

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CD54HC640 替代型号

型号	品牌	替代类型	描述	数据表
CD74HC640	TI	功能相似	High Speed CMOS Logic Octal Three-State Bus Transceiver, Inverting

与CD54HC640相关器件

型号	品牌	获取价格	描述	数据表
CD54HC640_08	TI	获取价格	High-Speed CMOS Logic Octal Three-State Bus Transceiver, Inverting
CD54HC640E	ETC	获取价格	Logic IC
CD54HC640EN	ETC	获取价格	Logic IC
CD54HC640F	ETC	获取价格	Logic IC
CD54HC640F3A	TI	获取价格	High-Speed CMOS Logic Octal Three-State Bus Transceiver, Inverting
CD54HC640F3A	RENESAS	获取价格	IC,BUS TRANSCEIVER,SINGLE,8-BIT,HC-CMOS,DIP,20PIN,CERAMIC
CD54HC640H/3	RENESAS	获取价格	HC/UH SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, UUC20
CD54HC640H/3A	RENESAS	获取价格	Bus Transceiver, HC/UH Series, 1-Func, 8-Bit, Inverted Output, CMOS
CD54HC640M	ETC	获取价格	Logic IC
CD54HC643E	ETC	获取价格	Logic IC

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