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MC74AC161_15 Datasheet, PDF (11/12 Pages) ON Semiconductor – Synchronous Presettable Binary Counter
MC74AC161, MC74ACT161, MC74AC163, MC74ACT163
AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Setup Time, HIGH or LOW
Pn to CP
th
Hold Time, HIGH or LOW
Pn to CP
ts
Setup Time, HIGH or LOW
SR to CP
th
Hold Time, HIGH or LOW
SR to CP
ts
Setup Time, HIGH or LOW
PE to CP
th
Hold Time, HIGH or LOW
PE to CP
ts
Setup Time, HIGH or LOW
CEP or CET to CP
th
Hold Time, HIGH or LOW
CEP or CET to CP
tw
Clock Pulse Width
HIGH or LOW
tw
Clock Pulse Width (Count)
HIGH or LOW
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
74ACT163
74ACT163
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = −40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
5.0 4.0
10.0
12.0
ns
3−9
5.0 −5.0
0.5
0.5
ns
3−9
5.0 4.0
10.0
11.5
ns
3−9
5.0 −5.5
−0.5
−0.5
ns
3−9
5.0 4.0
8.5
10.5
ns
3−9
5.0 −5.5
−0.5
0
ns
3−9
5.0 2.5
5.5
6.5
ns
3−9
5.0 −3.0
0
0.5
ns
3−9
5.0 2.0
3.5
3.5
ns
3−6
5.0 2.0
3.5
3.5
ns
3−6
CAPACITANCE
Symbol
Parameter
CIN
Input Capacitance
CPD
Power Dissipation Capacitance
Value
Typ
Unit
4.5
pF
45
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
ORDERING INFORMATION
Device
Package
Shipping†
MC74AC161DG
48 Units / Rail
MC74AC161DR2G
MC74ACT161DG
SOIC−16
(Pb−Free)
2500 / Tape & Reel
48 Units / Rail
MC74ACT161DR2G
2500 / Tape & Reel
MC74AC163DG
48 Units / Rail
MC74AC163DR2G
MC74ACT163DG
SOIC−16
(Pb−Free)
2500 / Tape & Reel
48 Units / Rail
MC74ACT163DR2G
2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
www.onsemi.com
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