74F640

更新时间： 2024-09-09 22:37:03

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		总线收发器
页数	文件大小	规格书
6页	58K
描述
Octal Bus Transceiver with 3-STATE Outputs

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数据手册

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74F640 数据手册

July 1989

Revised August 1999

74F640 • 74F645

Octal Bus Transceiver with 3-STATE Outputs

General Description

Features

These devices are octal bus transceivers designed for

asynchronous two-way data flow between the A and B bus-

ses. Both busses are capable of sinking 64 mA, have 3-

STATE outputs, and a common output enable pin. The

direction of data flow is determined by the transmit/receive

(T/R) input. The 74F645 is a high speed/low power version

of the 74F245. The 74F640 is an inverting option of the

74F645.

■ Designed for asynchronous two-way data flow between

busses

■ Outputs sink 64 mA

■ Transmit/receive (T/R) input controls the direction of

data flow

■ 74F645 is a lower power, faster version of the 74F245

■ 74F640 is an inverting option of the 74F645

Ordering Code:

Order Number Package Number

Package Description

74F640SC

74F640PC

74F645PC

M20B

N20A

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbol

Connection Diagram

DS010267

www.fairchildsemi.com

12 3 4 5 6

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与74F640相关器件

型号	品牌	获取价格	描述	数据表
74F640PC	FAIRCHILD	获取价格	Octal Bus Transceiver with 3-STATE Outputs
74F640PC	ROCHESTER	获取价格	Bus Transceiver, F/FAST Series, 1-Func, 8-Bit, Inverted Output, TTL, PDIP20, 0.300 INCH, M
74F640PC	TI	获取价格	F/FAST SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP20, 0.300 INCH, PLASTIC, DIP-20
74F640PCQR	TI	获取价格	74F640PCQR
74F640SC	FAIRCHILD	获取价格	Octal Bus Transceiver with 3-STATE Outputs
74F640SC	ROCHESTER	获取价格	Bus Transceiver, F/FAST Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO20, 0.300 INCH, M
74F640SC	TI	获取价格	F/FAST SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20, 0.300 INCH, PLASTIC, SOIC-20
74F640SCX	ROCHESTER	获取价格	Bus Transceiver, F/FAST Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO20, 0.300 INCH, M
74F640SCX	TI	获取价格	F/FAST SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20, 0.300 INCH, PLASTIC, SOIC-20
74F640SCX	FAIRCHILD	获取价格	Single 8-Bit Inverting Bus Transceiver