74HCT4516D 查看數據表（PDF） - Philips Electronics

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产品描述 (功能)

生产厂家

74HCT4516D

Binary up/down counter

Philips Electronics 

Philips Semiconductors

Binary up/down counter

Product specification

74HC/HCT4516

PIN DESCRIPTION

PIN NO.

1

4, 12, 13, 3

5

6, 11, 14, 2

7

8

9

10

15

16

SYMBOL

PL

D0 to D3

CE

Q0 to Q3

TC

GND

MR

UP/DN

CP

VCC

NAME AND FUNCTION

parallel load input (active HIGH)

parallel inputs

count enable input (active LOW)

parallel outputs

terminal count output (active LOW)

ground (0 V)

asynchronous master reset input (active HIGH)

up/down control input

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

positive supply voltage

Fig.1 Pin configuration.

Fig.2

Fig.3 IEC logic symbol.

December 1990

3

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