74AC399

更新时间： 2024-11-05 22:53:11

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
8页	90K
描述
Quad 2-Port Register

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数据手册

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74AC399 数据手册

June 1988

Revised November 1999

74AC399 • 74ACT399

Quad 2-Port Register

General Description

Features

The AC/ACT399 is the logical equivalent of a quad 2-input

multiplexer feeding into four edge-triggered flip-flops. A

common Select input determines which of the two 4-bit

words is accepted. The selected data enters the flip-flop on

the rising edge of the clock.

■ I_CCreduced by 50%

■ Select inputs from two data sources

■ Fully positive edge-triggered operation

■ Outputs source/sink 24 mA

■ AC/ACT399 has TTL-compatible inputs

Ordering Code:

Order Number Package Number

Package Description

74AC399SC

74AC399PC

74ACT399SC

74ACT399SJ

74ACT399PC

M16A

N16E

M16A

M16D

N16E

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body

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

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

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

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

Logic Symbols

Connection Diagram

IEEE/IEC

Pin Descriptions

Pin Names

Description

Common Select Input

Clock Pulse Input

_0a–I_0d

Data Inputs from Source 0

Data Inputs from Source 1

I_1a–I_1d

Q_a–Q_d

FACT is a trademark of Fairchild Semiconductor Corporation.

DS009789

www.fairchildsemi.com

12 3 4 5 6 7 8

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与74AC399相关器件

型号	品牌	获取价格	描述	数据表
74AC399_00	FAIRCHILD	获取价格	Quad 2-Port Register
74AC399DC	FAIRCHILD	获取价格	D Flip-Flop, AC Series, 1-Func, Positive Edge Triggered, 4-Bit, True Output, CMOS, CDIP16,
74AC399DC	TI	获取价格	AC SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, CDIP16, CERAMIC, DIP-16
74AC399DCQR	FAIRCHILD	获取价格	D Flip-Flop, AC Series, 1-Func, Positive Edge Triggered, 4-Bit, True Output, CMOS, CDIP16,
74AC399FC	FAIRCHILD	获取价格	D Flip-Flop, AC Series, 1-Func, Positive Edge Triggered, 4-Bit, True Output, CMOS, CDFP16,
74AC399FCQR	FAIRCHILD	获取价格	D Flip-Flop, AC Series, 1-Func, Positive Edge Triggered, 4-Bit, True Output, CMOS, CDFP16,
74AC399FCT	FAIRCHILD	获取价格	D Flip-Flop, AC Series, 1-Func, Positive Edge Triggered, 4-Bit, True Output, CMOS, CDFP16,
74AC399FCTR	FAIRCHILD	获取价格	D Flip-Flop, AC Series, 1-Func, Positive Edge Triggered, 4-Bit, True Output, CMOS, CDFP16,
74AC399LC	TI	获取价格	AC SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, CQCC20, CERAMIC, LCC-20
74AC399LCQR	FAIRCHILD	获取价格	D Flip-Flop, AC Series, 1-Func, Positive Edge Triggered, 4-Bit, True Output, CMOS, CQCC20,