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CD54HCT161 Datasheet, PDF (6/16 Pages) Texas Instruments – High-Speed CMOS Logic Presettable Counters
◁
CD54/74HC161, CD54/74HCT161, CD54/74HC163, CD54/74HCT163
Prerequisite For Switching Specifications
PARAMETER
TEST
VCC
25oC
-40oC TO 85oC -55oC TO 125oC
SYMBOL CONDITIONS (V) MIN TYP MAX MIN MAX MIN MAX UNITS
HC TYPES
Maximum CP Frequency
(Note 6)
fMAX
-
2
6
-
-
5
-
4
-
MHz
4.5 30 -
-
24
-
20
-
MHz
6 35 -
-
28
-
24
-
MHz
CP Width (Low)
tW(L)
-
2 80 -
-
100
-
120
-
ns
4.5 16 -
-
20
-
24
-
ns
6 14 -
-
17
-
20
-
ns
MR Pulse Width (161)
tW
-
2 100 -
-
125
-
150
-
ns
4.5 20 -
-
25
-
30
-
ns
6 17 -
-
21
-
26
-
ns
Setup Time, Pn to CP
tSU
-
2 60 -
-
75
-
90
-
ns
4.5 12 -
-
15
-
18
-
ns
6 10 -
-
13
-
15
-
ns
Setup Time, PE or TE to CP
tSU
-
2 50 -
-
65
-
75
-
ns
4.5 10 -
-
13
-
15
-
ns
6
9
-
-
11
-
13
-
ns
Setup Time, SPE to CP
tSU
-
2 60 -
-
75
-
90
-
ns
4.5 12 -
-
15
-
18
-
ns
6 10 -
-
13
-
15
-
ns
Setup Time, MR to CP (163)
tSU
-
2 65 -
-
80
-
100
-
ns
4.5 13 -
-
16
-
20
-
ns
6 11 -
-
14
-
17
-
ns
Hold Time, PN to CP
tH
-
2
3
-
-
3
-
3
-
ns
4.5 3 -
-
3
-
3
-
ns
6
3
-
-
3
-
3
-
ns
Hold Time, TE or PE to CP
tH
-
2
0
-
-
0
-
0
-
ns
4.5 0 -
-
0
-
0
-
ns
6
0
-
-
0
-
0
-
ns
Hold Time, SPE to CP
tH
-
2
0
-
-
0
-
0
-
ns
4.5 0 -
-
0
-
0
-
ns
6
0
-
-
0
-
0
-
ns
Recovery Time, MR to CP (161) tREC
-
2 75 -
-
95
-
110
-
ns
4.5 15 -
-
19
-
22
-
ns
6 13 -
-
16
-
19
-
ns
6
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