74AC157 datasheet(1/9 Pages) STMICROELECTRONICS

No de pièce	74AC157

Description	QUAD 2 CHANNEL MULTIPLEXER

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74AC157

QUAD 2 CHANNEL MULTIPLEXER

PRELIMINARY DATA

May 1997

s

HIGH SPEED: tPD = 4 ns (TYP.) at VCC =5V

s

LOW POWER DISSIPATION:

ICC =8

µA (MAX.) at TA =25 oC

s

HIGH NOISE IMMUNITY:

VNIH =VNIL = 28% VCC (MIN.)

s

50

Ω TRANSMISSION LINE DRIVING

CAPABILITY

s

SYMMETRICAL OUTPUT IMPEDANCE:

|IOH|= IOL =24 mA (MIN)

s

BALANCED PROPAGATION DELAYS:

tPLH

≅ tPHL

s

OPERATING VOLTAGE RANGE:

VCC (OPR) = 2V to 6V

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 157

s

IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The AC157 is an high-speed CMOS QUAD

2-CHANNEL

MULTIPLEXER

fabricated

with

sub-micron silicon gate and double-layer metal

wiring C

2MOS technology. It is ideal for low

power

applications

maintaining

high

speed

operation similar to equivalent Bipolar Schottky

TTL.

It consists of four 2-input digital multiplexers with

common select and strobe inputs. It is a

non-inverting multiplexer. When the STROBE

input is held high selection of data is inhibit and

all the outputs become low. The SELECT

decoding determines whether the A or B inputs

get routed to their corresponding Y outputs.

All

inputs and

outputs

are

equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

M

(Micro Package)

B

(Plastic Package)

ORDER CODES :

74AC157B

74AC157M

1/9

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Fabricant	No de pièce	Fiches technique	Description
ON Semiconductor	74AC157	106Kb / 10P	Quad 2-Input Multiplexer January, 2005 ??Rev. 6
ON Semiconductor	74AC157	182Kb / 11P	Dual 4?묲nput Multiplexer with 3?뭆tate Outputs March, 2006 ??Rev. 6
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STMicroelectronics	74AC157	275Kb / 10P	QUAD 2 CHANNEL MULTIPLEXER Apr-2001
STMicroelectronics	74AC157B	275Kb / 10P	QUAD 2 CHANNEL MULTIPLEXER Apr-2001

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Description similaire - 74AC157

Fabricant	No de pièce	Fiches technique	Description
Motorola, Inc	MC74VHC157	149Kb / 6P	Quad 2-Channel Multiplexer
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STMicroelectronics	74AC157	275Kb / 10P	QUAD 2 CHANNEL MULTIPLEXER Apr-2001
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