M74HC4351(2001) Просмотр технического описания (PDF) - STMicroelectronics

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M74HC4351
(Rev.:2001)

ANALOG MULTIPLEXER/DEMULTIPLEXER WITH ADDRESS LATCH : SINGLE 8 CHANNEL

STMicroelectronics 

M74HC4351

CONTROL INPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No

4

3, 14

7

8

9

11

15, 13, 12

17, 18, 19,

16, 1, 6, 2, 5

10

20

SYMBOL

COM

NC

EN1

EN2

VEE

LE

A, B, C

0 to 7

GND

VCC

NAME AND FUNCTION

Common

Not Connected

Enable Input (Active

LOW)

Enable Input (Active

HIGH)

Negative Supply Voltage

Latch Enable Input (Active

LOW)

Select Inputs

Independent Inputs/Out-

puts

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

CONTROL INPUTS

"ON" CHANNEL (LE = H)**

EN1

EN2

C

B

A

L

H

L

L

L

0

L

H

L

L

H

1

L

H

L

H

L

2

L

H

L

H

H

3

L

H

H

L

L

4

L

H

H

L

H

5

L

H

H

H

L

6

L

H

H

H

H

7

H

X

X

X

X

NONE

X

L

X

X

X

NONE

X : Don’t Care

** : When latch Enable is low, the Channel Selection is latched and the Channel Address Latch does not change state.

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

VCC Supply Voltage

-0.5 to +7

V

VCC - VEE Supply Voltage Range

-0.5 to +13

V

VIN

DC Input Voltage

-0.5 to VCC + 0.5

V

VI/O DC Switch Input/Output Voltage

VEE -0.5 to VCC + 0.5

V

IIK

Input Diode Current

± 20

mA

IOK

I/O Diode Current

± 20

mA

IOUT DC Output Current

± 25

mA

ICC or IGND DC VCC or Ground Current

± 50

mA

PD

Power Dissipation

500(*)

mW

Tstg Storage Temperature

-65 to +150

°C

TL

Lead Temperature (10 sec)

300

°C

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is

not implied

(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C

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