74F646

更新时间： 2024-09-13 22:37:03

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
9页	81K
描述
Octal Transceiver/Register with 3-STATE Outputs

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数据手册

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74F646 数据手册

March 1988

Revised August 1999

74F646 • 74F646B • 74F648

Octal Transceiver/Register with 3-STATE Outputs

General Description

Features

These devices consist of bus transceiver circuits with 3-

STATE, D-type flip-flops, and control circuitry arranged for

multiplexed transmission of data directly from the input bus

or from the internal registers. Data on the A or B bus will be

clocked into the registers as the appropriate clock pin goes

to a high logic level. Control G and direction pins are pro-

vided to control the transceiver function. In the transceiver

mode, data present at the high impedance port may be

stored in either the A or the B register or in both. The select

controls can multiplex stored and real-time (transparent

mode) data. The direction control determines which bus

will receive data when the enable control G is Active LOW.

In the isolation mode (control G HIGH), A data may be

stored in the B register and/or B data may be stored in the

A register.

■ Independent registers for A and B buses

■ Multiplexed real-time and stored data

■ 74F648 has inverting data paths

■ 74F646/74F646B have non-inverting data paths

■ 74F646B is a faster version of the 74F646

■ 3-STATE outputs

■ 300 mil slim DIP

Ordering Code:

Order Number Package Number

Package Description

74F646SC

M24B

MSA24

N24C

M24B

N24C

M24B

N24C

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

24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide

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

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide

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

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide

74F646MSA

74F646SPC

74F646BSC

74F646BSPC

74F648SC

74F648SPC

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

DS009580

www.fairchildsemi.com

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与74F646相关器件

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74F646_04	NSC	获取价格	Octal Transceiver/Register with 3-STATE Outputs
74F646A	NXP	获取价格	Octal transceiver/register, non-inverting 3-State
74F646B	FAIRCHILD	获取价格	Octal Transceiver/Register with 3-STATE Outputs
74F646B	NSC	获取价格	Octal Transceiver/Register with TRI-STATE Outputs
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74F646BFMQB	NSC	获取价格	Octal Transceiver/Register with TRI-STATE Outputs
74F646BFMX	NSC	获取价格	Octal Transceiver/Register with TRI-STATE Outputs
74F646BLCQB	NSC	获取价格	Octal Transceiver/Register with TRI-STATE Outputs
74F646BLCX	NSC	获取价格	Octal Transceiver/Register with TRI-STATE Outputs