TRUTH TABLE

AB

CY

LL

L

H

HX

X

L

XH

X

L

XXH

L

PIN DESCRIPTION

PIN No

SYMBOL

NAME AND FUNCTION

1, 3, 9

1A to 3A

Data Inputs

2, 4, 10

1B to 3B

Data Inputs

13, 5, 11

1C to 3C

Data Inputs

12, 6, 8

1Y to 3Y

Data Outputs

7

GND

Ground (0V)

14

Positive Supply Voltage

IEC Logic Symbol

LOGIC DIAGRAM

ABSOLUTE MAXIMUM RATINGS

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

± 25

mA

± 50

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:

M54/M74HCT27

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