PIN DESCRIPTION

PIN No

SYMBOL

NAME AND FUNCTION

1, 2

M, N

Output Enable Input

(Active LOW)

3, 4, 5, 6

1Q to 4Q

3-State Flip-flop Outputs

7

CLOCK

Clock Input (LOW to

HIGH, Edge-triggered)

9, 10

G1, G2

Data Enable Inputs

(Active LOW)

14, 13, 12,

11

1D to 4D

Data Inputs

15

CLEAR

Asynchronous Master

Reset (Active HIGH)

8

GND

Ground (0V)

16

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:

INPUT AND OUTPUT EQUIVALENT CIRCUIT

M54/M74HC173

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