PIN DESCRIPTION

PIN No

SYMBOL

NAME AND FUNCTION

8, 7,, 6, 5,

4, 3, 2, 1

D0 to D7

Data Inputs

9

CLOCK

Clock Input (LOW to

HIGH, Edge-triggered)

11

SC

Latch Enable Input

(Active LOW)

14, 13, 12

S0, S1, S2

Select Inputs

15, 16

G1, G2

Output Enable Inputs

(Active LOW)

17

G3

Output Enable Inputs

(Active HIGH)

18

W

3 State Multiplexer Output

(Active LOW)

19

Y

3 State Multiplexer Output

(Active HIGH)

10

GND

Ground (0V)

20

Positive Supply Voltage

IEC LOGIC SYMBOL

ABSOLUTE MAXIMUM RATING

Symbol

Parameter

Value

Unit

Supply Voltage

-0.5 to +7

V

DC Input Voltage

V

DC Output Voltage

V

DC Input Diode Current

± 20

mA

DC Output Diode Current

± 20

mA

DC Output Source Sink Current Per Output Pin

± 35

mA

± 70

mA

Power Dissipation

500 (*)

mW

Storage Temperature

-65 to +150

Lead Temperature (10 sec)

300

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.

(*) 500 mW:

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Value

Unit

Supply Voltage

2 to 6

V

Input Voltage

V

Output Voltage

V

Operating Temperature: M54HC Series

M74HC Series

-55 to +125

-40 to +85

Input Rise and Fall Time

0 to 1000

ns

0 to 500

0 to 400

M54/M74HC356

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