Datasheet > M74HC158F1R

M74HC158F1R

更新时间： 2024-11-26 22:17:39

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		复用器
页数	文件大小	规格书
11页	252K
描述
HCT157 QUAD 2 CHANNEL MULTIPLEXER HCT158 QUAD 2 CHANNEL MULTIPLEXER INV.

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中文翻译

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数据手册

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M74HC158F1R 数据手册

M54HCT157/158

M74HCT157/158

HCT157 QUAD 2 CHANNEL MULTIPLEXER

HCT158 QUAD 2 CHANNEL MULTIPLEXER (INV.)

HIGH SPEED

t_PD= 21 ns (TYP.) AT V_CC= 5 V

LOW POWER DISSIPATION

I_CC= 4 µA (MAX.) AT T_A= 25 °C

COMPATIBLE WITH TTL OUTPUTS

V_IH= 2V (MIN.) V_IL= 0.8V (MAX)

OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

SYMMETRICAL OUTPUT IMPEDANCE

IOH = I_OL= 4 mA (MIN.)

BALANCED PROPAGATION DELAYS

t_PLH= t_PHL

PIN AND FUNCTION COMPATIBLE

B1R

(Plastic Package)

F1R

(Ceramic Package)

M1R

(Micro Package)

C1R

(Chip Carrier)

WITH 54/74LS157/158

ORDER CODES :

M54HCTXXXF1R

M74HCTXXXB1R

M74HCTXXXM1R

M74HCTXXXC1R

PIN CONNECTIONS (top view)

HCT157

DESCRIPTION

The M54/74HCT157 and the M54/74HCT158 are

high speed CMOS QUAD 2-CHANNEL MULTI-

PLEXERs fabricated with silicon gate C²MOS tech-

nology. They achieve the high speed operation

similar to equivalent LSTTL while maintaining the

CMOS low power dissipation.

These devices consist of four 2-input digital multi-

plexers with common select and strobe inputs. The

HCT158 is an inverting multiplexer while the

HCT157 is a non-inverting multiplexer. When the

STROBE input is held High, selection of data is in-

hibited and all the outputs become Low in the

M74HCT157 and High in theM74HCT158. The SE-

LECT decoding determines whether the A or B in-

puts get routed to their corresponding Y outputs. All

inputs are equipped with protection circuits against

static discharge and transient excess voltage.

M54/74HCT devices are designed to directly inter-

face HSC²MOS systems with TTL and NMOS com-

ponents. They are also plug in replacements for

LSTTL devices giving a reduction of power con-

sumption.

HCT158

NC =

No Internal

Connection

April 1993

1/11

12 3 4 5 6 7...11

中文翻译

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