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MM74HC161SJ View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
MFG CO.
MM74HC161SJ
Synchronous Binary Counter with Asynchronous Clear • Synchronous Binary Counter with Synchronous Clear
Fairchild
Fairchild Semiconductor 
MM74HC161SJ Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
AC Electrical Characteristics
VCC = 5V, TA = 25°C, CL = 15 pF, tr = tf = 6 ns
Symbol
Parameter
fMAX
tPHL, tPLH
tPHL, tPLH
tPHL, tPLH
tPHL
tREM
tS
Maximum Operating Frequency
Maximum Propagation Delay, Clock to RC
Maximum Propagation Delay, Clock to Q
Maximum Propagation Delay, ENT to RC
Maximum Propagation Delay, Clear to Q or RC
Minimum Removal Time, Clear to Clock
Minimum Set Up Time Clear, Load,
Enable or Data to Clock
tH
Minimum Hold Time, Data from Clock
tW
Minimum Pulse Width Clock,
Clear, or Load
AC Electrical Characteristics
CL = 50 pF, tr = tf = 6 ns (unless otherwise specified)
Symbol
Parameter
Conditions
fMAX
Maximum Operating
Frequency
tPHL
Maximum Propagation
Delay, Clock to RC
tPLH
Maximum Propagation
Delay, Clock to RC
tPHL
Maximum Propagation
Delay, Clock to Q
tPLH
Maximum Propagation
Delay, Clock to Q
tPHL
Maximum Propagation
Delay, ENT to RC
tPLH
Maximum Propagation
Delay, ENT to RC
tPHL
Maximum Propagation
Delay, Clear to RC
tPHL
Maximum Propagation
Delay, Clear to Q
tREM
Minimum Removal
Time Clear to Clock
tS
Minimum Setup
Time Clear or Data
to Clock
tS
Minimum Setup
Time Load
to Clock
Conditions
Typ
Guaranteed Limit
Units
43
30
MHz
30
35
ns
29
34
ns
18
32
ns
27
38
ns
10
20
ns
30
ns
5
ns
16
ns
VCC
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
TA = 25°C
Typ
10
5
40
27
45
32
100
215
32
43
28
37
88
175
18
35
15
30
95
205
30
41
26
35
85
170
17
34
14
29
90
195
28
39
24
33
80
160
16
32
14
27
100
220
32
44
28
37
100
210
32
42
28
36
125
25
21
150
30
26
135
27
23
TA = −40 to 85°C TA = −55 to 125°C
Guaranteed Limits
4
4
21
18
25
21
271
320
54
64
46
54
220
260
44
52
37
44
258
305
52
61
44
52
214
253
43
51
36
43
246
291
49
58
42
49
202
238
40
48
34
41
275
325
55
66
47
55
260
315
52
63
45
54
158
186
32
37
27
32
190
225
38
45
32
38
170
200
34
41
29
35
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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