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74F257ASJX

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74F257ASJX 数据手册

April 1988

Revised September 2000

74F257A

Quad 2-Input Multiplexer with 3-STATE Outputs

General Description

Features

The 74F257A is a quad 2-input multiplexer with 3-STATE

outputs. Four bits of data from two sources can be selected

using a Common Data Select input. The four outputs

present the selected data in true (non-inverted) form. The

outputs may be switched to a high impedance state with a

HIGH on the common Output Enable (OE) input, allowing

the outputs to interface directly with bus-oriented systems.

■ Multiplexer expansion by tying outputs together

■ Non-inverting 3-STATE outputs

■ Input clamp diodes limit high-speed termination effects

Ordering Code:

Order Number Package Number

Package Description

74F257ASC

74F257ASJ

74F257APC

M16A

M16D

N16E

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

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

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

Logic Symbols

Connection Diagram

IEEE/IEC

DS009507

www.fairchildsemi.com

12 3 4 5 6 7

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型号	品牌	获取价格	描述	数据表
74F257ASJX_NL	FAIRCHILD	获取价格	Multiplexer, F/FAST Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16,
74F257SC	FAIRCHILD	获取价格	暂无描述
74F257SCQR	FAIRCHILD	获取价格	Multiplexer, F/FAST Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16,
74F257VC	FAIRCHILD	获取价格	Multiplexer, F/FAST Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16,
74F257VCQR	FAIRCHILD	获取价格	Multiplexer, F/FAST Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16,
74F258A	NXP	获取价格	Quad 2-line to 1-line selector/multiplexer, inverting 3-State
74F258A	FAIRCHILD	获取价格	Quad 2-Input Multiplexer with 3-STATE Outputs
74F258A	TI	获取价格	54F258A 74F258A Quad 2-Input Multiplexer with TRI-STATE(RM) Outputs
74F258ADC	NSC	获取价格	IC,LOGIC MUX,QUAD,2-INPUT,F-TTL,DIP,16PIN,CERAMIC
74F258APC	FAIRCHILD	获取价格	Quad 2-Input Multiplexer with 3-STATE Outputs