74HC4020 Datasheet, PDF (3/7 Pages) NXP Semiconductors – 14-stage binary ripple counter

Philips Semiconductors
14-stage binary ripple counter
Product specification
74HC/HCT4020
PIN DESCRIPTION
PIN NO.
SYMBOL
9, 7, 5, 4, 6, 13, 12, 14, 15, 1, 2, 3 Q₀, Q₃ to Q₁₃
8
GND
10
CP
11
MR
16
V_CC
NAME AND FUNCTION
parallel outputs
ground (0 V)
clock input (HIGH-to-LOW, edge-triggered)
master reset input (active HIGH)
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
fpage
RCTR14
9
0
7
35
CT=0
4
6
13
CT
12
14
15
1
2
3
13
MGA829
Fig.3 IEC logic symbol.
September 1993
3