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CD74AC161ME4 Datasheet, PDF (8/18 Pages) Texas Instruments – 4-BIT SYNCHRONOUS BINARY COUNTERS | |||
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CD54AC161, CD74AC161
4-BIT SYNCHRONOUS BINARY COUNTERS
SCHS239C â SEPTEMBER 1998 â REVISED MARCH 2003
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
fclock Clock frequency
tw
Pulse duration
tsu
Setup time, before CLKâ
th
Hold time, after CLKâ
trec Recovery time, CLRâ before CLKâ
CLK high or low
CLR low
A, B, C, or D
LOAD
A, B, C, or D
ENP or ENT
VCC
1.5 V
3.3 V ± 0.3 V
5 V ± 0.5 V
1.5 V
3.3 V ± 0.3 V
5 V ± 0.5 V
1.5 V
3.3 V ± 0.3 V
5 V ± 0.5 V
1.5 V
3.3 V ± 0.3 V
5 V ± 0.5 V
1.5 V
3.3 V ± 0.3 V
5 V ± 0.5 V
1.5 V
3.3 V ± 0.3 V
5 V ± 0.5 V
1.5 V
3.3 V ± 0.3 V
5 V ± 0.5 V
1.5 V
3.3 V ± 0.3 V
5 V ± 0.5 V
â55°C to
125°C
MIN MAX
7
64
90
69
7.7
5.5
63
7
5
63
7
5
75
8.4
6
0
0
0
0
0
0
75
8.4
6
â40°C to
85°C
MIN MAX
8
73
103
61
6.8
4.8
55
6.1
4.4
55
6.1
4.4
66
7.4
5.3
0
0
0
0
0
0
66
7.4
5.3
UNIT
MHz
ns
ns
ns
ns
8
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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