Data Sheet

©
Nexperia B.V. 2017. All rights reserved
74HC_HCT4020 All information provided in this document is subject to legal disclaimers. .
Product data sheet Rev. 6 — 3 February 2016 11 of 19
Nexperia
74HC4020; 74HCT4020
14-stage binary ripple counter
Test data is given in Table 9.
Definitions test circuit:
R
T
= Termination resistance should be equal to output impedance Z
o
of the pulse generator.
C
L
= Load capacitance including jig and probe capacitance.
Fig 10. Test circuit for measuring switching times
DDK

W
:
W
:
W
U
W
U
W
I
9
0
9
,
QHJDWLYH
SXOVH
*1'
9
,
SRVLWLYH
SXOVH
*1'




9
0
9
0
9
0
W
I
9
&&
'87
5
7
9
,
9
2
&
/
*
Table 9. Test data
Type Input Load
V
I
t
r
, t
f
C
L
74HC4020 V
CC
6 ns 15 pF, 50 pF
74HCT4020 3 V 6 ns 15 pF, 50 pF