M74HC4351

2/12

CONTROL INPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

TRUTH TABLE

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

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

PIN No

SYMBOL

NAME AND FUNCTION

4

COM

Common

3, 14

NC

Not Connected

7EN1

Enable Input (Active

LOW)

8

EN2

Enable Input (Active

HIGH)

Negative Supply Voltage

11

LE

Latch Enable Input (Active

LOW)

15, 13, 12

A, B, C

Select Inputs

17, 18, 19,

16, 1, 6, 2, 5

0 to 7

Independent Inputs/Out-

puts

10

GND

Ground (0V)

20

Positive Supply Voltage

CONTROL INPUTS

"ON" CHANNEL (LE = H)**

EN1

EN2

C

B

A

LH

L

L

L

0

LH

L

L

H1

LH

L

H

L

2

LH

L

H

H3

LH

H

L

L

4

LH

H

L

H5

LH

H

H

L

6

LH

H

H

H7

H

X

X

X

X

NONE

X

L

X

X

X

NONE

Symbol

Parameter

Value

Unit

Supply Voltage

-0.5 to +7

V

-0.5 to +13

V

DC Input Voltage

V

DC Switch Input/Output Voltage

V

Input Diode Current

± 20

mA

I/O Diode Current

± 20

mA

DC Output Current

± 25

mA

± 50

mA

Power Dissipation

500(*)

mW

Storage Temperature

-65 to +150

°C

Lead Temperature (10 sec)

300

°C