IN74HC161A
AC ELECTRICAL CHARACTERISTICS (CL=50pF,Input tr=tf=6.0 ns)
VCC
V
Guaranteed Limit
Symbol
fmax
Parameter
Unit
MHz
ns
25 °C
to
≤85°C ≤125°C
-55°C
Maximum Clock Frequency (Figures 1,6)
2.0
4.5
6.0
6
30
35
5
24
28
4
20
24
tPLH
2.0
4.5
6.0
120
20
160
23
200
28
Maximum Propagation Delay Clock to Q
(Figures 1,6)
16
20
22
tPHL
2.0
4.5
6.0
145
22
185
25
320
30
ns
18
20
23
tPHL
Maximum Propagation Delay Reset to Q
(Figures 2 and 6)
2.0
4.5
6.0
145
20
17
185
22
19
220
25
21
ns
tPLH
2.0
4.5
6.0
110
16
14
150
18
15
190
20
17
ns
Maximum Propagation Delay Enable T to Ripple
Carry Out
tPHL
tPLH
tPHL
tPHL
(Figures 3,6)
2.0
4.5
6.0
135
18
15
175
20
16
210
22
20
ns
ns
ns
ns
ns
pF
2.0
4.5
6.0
120
22
18
160
27
22
200
30
25
Maximum Propagation Delay Clock to Ripple
Carry Out (Figures 1,6)
2.0
4.5
6.0
145
22
20
185
28
24
220
35
28
Maximum Propagation Delay Reset to Ripple
Carry Out (Figures 2,6)
2.0
4.5
6.0
155
22
18
190
26
22
230
30
25
tTLH, tTHL Maximum Output Transition Time, Any Output
(Figures 1 and 6)
2.0
4.5
6.0
75
15
13
95
19
16
110
22
19
CIN
Maximum Input Capacitance
-
10
10
10
Power Dissipation Capacitance (Per Gate)
Typical @25°C,VCC=5.0 V
CPD
Used to determine the no-load dynamic power
consumption:
30
pF
PD=CPDVCC2f+ICCVCC
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
