M74HC161 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
M74HC161 Datasheet PDF : 16 Pages
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M54/M74HC160/161/162/163
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
tTLH
tTHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
fMAX
tW(H)
tW(L)
tW(L)
ts
ts
ts
Parameter
Output Transition
Time
Propagation
Delay Time
(CLOCK - Q)
Propagation
Delay Time
(CLOCK-CARRY)
Propagation
Delay Time
(CLOCK-CARRY)
Propagation
Delay Time
(CLOCK-CARRY)
Propagation
Delay Time
(ENT-CARRY)
Propagation
Delay Time
(CLEAR - Q)
Propagation
Delay Time
(CLEAR-CARRY)
Maximum Clock
Frequency
Minimum Pulse
Width
(CLOCK)
Minimum Pulse
Width
(CLEAR)
Minimum Set-up
Time
(LOAD, PE, TE)
Minimum Set-up
Time
(A, B, C, D)
Minimum Set-up
Time
(CLEAR)
Test Conditions
VCC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5 COUNT MODE
6.0
2.0
4.5 PRESET MODE
6.0
2.0
4.5 PRESET MODE
6.0
2.0
4.5
6.0
2.0
for
4.5 HC160/161
6.0
only
2.0
for
4.5 HC160/161
6.0
only
2.0
4.5
6.0
2.0
4.5
6.0
2.0
for
4.5 HC160/161
6.0
only
2.0
4.5
6.0
2.0
4.5
6.0
2.0
for
4.5 HC162/163
6.0
only
TA = 25 oC
54HC and 74HC
Min. Typ. Max.
25 75
7
15
6
13
48 125
16 25
14 21
57 150
19 30
16 26
66 175
22 35
19 30
72 200
24 40
20 34
39 100
13 20
11 17
60 150
20 30
17 26
72 200
24 40
20 34
6.2 18
31 53
37 62
18 75
6
15
6
13
24 75
7
15
6
13
40 100
10 20
8
17
20 75
5
15
3
13
20 75
5
15
3
13
Value
-40 to 85 oC
74HC
Min. Max.
95
19
16
155
31
26
190
38
32
220
44
37
250
50
43
125
25
21
190
38
32
250
50
43
5
25
30
95
19
16
95
19
16
125
25
21
95
19
16
95
19
16
-55 to 125 oC
54HC
Min. Max.
110
22
19
190
38
32
225
45
38
265
53
45
300
60
51
150
30
26
225
45
38
300
60
51
4.2
21
25
110
22
19
110
22
19
150
30
26
110
22
19
110
22
19
Unit
ns
ns
ns
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns
ns
9/16
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