74AC257TTR

更新时间： 2024-11-19 00:00:47

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		复用器逻辑集成电路光电二极管
页数	文件大小	规格书
12页	203K
描述
QUAD 2 CHANNEL MULTIPLEXER 3-STATE

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中文翻译

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数据手册
替代型号

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74AC257TTR 数据手册

74AC257

QUAD 2 CHANNEL MULTIPLEXER (3-STATE)

■

HIGH SPEED: t = 4.5ns (TYP.) at V = 5V

PD CC

LOW POWER DISSIPATION:

= 4µA(MAX.) at T =25°C

■

HIGH NOISE IMMUNITY:

= V = 28 % V (MIN.)

50Ω TRANSMISSION LINE DRIVING

NIH

NIL

DIP

SOP

TSSOP

T & R

CAPABILITY

SYMMETRICAL OUTPUT IMPEDANCE:

|I | = I = 24mA (MIN)

BALANCED PROPAGATION DELAYS:

ORDER CODES

PACKAGE

PLH

PHL

TUBE

OPERATING VOLTAGE RANGE:

(OPR) = 2V to 6V

DIP

SOP

74AC257B

74AC257M

74AC257MTR

74AC257TTR

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 257

IMPROVED LATCH-UP IMMUNITY

TSSOP

high impedance state. If SELECT input is held

LOW, "A" data is selected, when SELECT input is

held HIGH, "B" data is chosen.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

DESCRIPTION

The 74AC257 is an advanced high-speed CMOS

QUAD 2-CHANNEL MULTIPLEXER (3-STATE)

fabricated with sub-micron silicon gate and

double-layer metal wiring C MOS tecnology.

It is composed of four independent 2-channel

multiplexer with common SELECT and ENABLE

(OE) inputs. It is a non-inverting multiplexer. When

the OE input is held HIGH,all the output become in

PIN CONNECTION AND IEC LOGIC SYMBOLS

April 2001

1/11

12 3 4 5 6 7...12

中文翻译

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74AC257TTR 替代型号

型号	品牌	替代类型	描述	数据表
MC74AC257MELG	ONSEMI	功能相似	IC AC SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, PLASTIC, EIAJ-16, Mu
74AC257SC	FAIRCHILD	功能相似	Quad 2-Input Multiplexer with 3-STATE Outputs

与74AC257TTR相关器件

型号	品牌	获取价格	描述	数据表
74AC258FCT	FAIRCHILD	获取价格	Multiplexer, AC Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, CMOS, CDFP16
74AC258FCXR	FAIRCHILD	获取价格	Multiplexer, AC Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, CMOS, CDFP16
74AC258LCT	FAIRCHILD	获取价格	Multiplexer, AC Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, CMOS, CQCC20
74AC258LCTR	FAIRCHILD	获取价格	Multiplexer, AC Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, CMOS, CQCC20
74AC258PC	FAIRCHILD	获取价格	Multiplexer, AC Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, CMOS, PDIP16
74AC258PC	TI	获取价格	AC SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, INVERTED OUTPUT, PDIP16, 0.300 INCH, PLASTIC
74AC258PCQR	ETC	获取价格	2-Input Digital Multiplexer
74AC258SC	TI	获取价格	AC SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, INVERTED OUTPUT, PDSO16, 0.150 INCH, PLASTIC
74AC258SCQR	ETC	获取价格	2-Input Digital Multiplexer
74AC258SCT	FAIRCHILD	获取价格	Multiplexer, AC Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, CMOS, PDSO16