ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Supply Voltage : HC C Types

HCF Types

– 0.5 to + 20

– 0.5 to + 18

V

V

Input Voltage

V

DC Input Current (any one input)

± 10

mA

Total Power Dissipation (per package)

Dissipation per Output Transistor

200

100

mW

mW

Operating Temperature : HCC Types

HCF Types

– 55 to + 125

–40 to + 85

°C

°C

Storage Temperature

– 65 to + 150

°C

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Val ue

Unit

Supply Voltage : HCC Types

HCF Types

3to18

3to15

V

V

Input Voltage

V

Operating Temperature : HCC Types

HC F Types

–55 to 125

–40 to 85

°C

°C

Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only

and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification

is not implied. Exposure to absolute maximum rating conditions for external periods may affect device reliability.

TRUTH TABLE

4055 B and 4056 B

Input Code

Output State

ab

cd

e

f

g

Display

Character

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

0

0

0

0

1

1

1

1

0

0

0

0

1

1

1

1

0

0

1

1

0

0

1

1

0

0

1

1

0

0

1

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

1

0

1

1

0

1

1

1

1

1

0

0

1

1

0

0

1

1

1

1

1

0

0

1

1

1

0

1

1

1

0

0

1

1

0

1

1

1

1

1

1

1

0

1

0

1

0

0

1

0

1

1

0

1

1

0

1

1

1

0

0

0

0

0

1

0

1

0

0

0

1

0

1

0

1

1

1

1

0

0

1

0

0

0

1

1

1

0

1

1

1

1

1

1

0

0

0

0

1

1

1

1

1

0

1

1

0

1

1

1

1

0

0

1

2

3

4

5

6

7

8

9

L

H

P

A

–

BLANK

Data Setup Time and Strobe Pulse Duration.

HCC/HCF4054B/55B/56B

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