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74HC4518

Dual synchronous BCD counter

Philips Electronics 

Philips Semiconductors

Dual synchronous BCD counter

Product specification

74HC/HCT4518

PIN DESCRIPTION

PIN NO.

1, 9

2, 10

3, 4, 5, 6

7, 15

8

11, 12, 13, 14

16

SYMBOL

1CP0, 2CP0

1CP1, 2CP1

1Q0 to 1Q3

1MR, 2MR

GND

2Q0 to 2Q3

VCC

NAME AND FUNCTION

clock inputs (LOW-to-HIGH, edge-triggered)

clock inputs (HIGH-to-LOW, edge-triggered)

data outputs

asynchronous master reset inputs (active HIGH)

ground (0 V)

data outputs

positive supply voltage

Fig.1 Pin configuration.

Fig.2 Logic symbol.

Fig.3 IEC logic symbol.

December 1990

3

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