74hct4020d NXP Semiconductors, 74hct4020d Datasheet - Page 4

• Manufacturer Part Number: 74hct4020d
• Description: 14-stage Binary Ripple Counter
• Manufacturer: NXP Semiconductors

Philips Semiconductors
September 1993
14-stage binary ripple counter
Fig.4 Functional diagram.
Fig.5 Logic diagram.
Fig.6 Timing diagram.
4
FUNCTION TABLE
Notes
1. H = HIGH voltage level
CP
X
L = LOW voltage level
X = don’t care
INPUTS
= LOW-to-HIGH clock
= HIGH-to-LOW clock
transition
transition
74HC/HCT4020
MR
H
L
L
Product specification
Q
OUTPUTS
no change
0
, Q
count
3
L
to Q
13