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MC74AC299 Datasheet, PDF (8/11 Pages) ON Semiconductor – 8−Input Universal Shift/Storage Register with Common Parallel I/O Pins
MC74AC299, MC74ACT299
AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Setup Time, HIGH or LOW
S0 or S1 to CP
th
Hold Time, HIGH or LOW
S0 or S1 to CP
ts
Setup Time, HIGH or LOW
I/On to CP
th
Hold Time, HIGH or LOW
I/On to CP
ts
Setup Time, HIGH or LOW
DS0 or DS7 to CP
th
Hold Time, HIGH or LOW
DS0 or DS7 to CP
tw
CP Pulse Width
HIGH or LOW
tw
MR Pulse Width, LOW
trec
Recovery Time
MR to CP
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
CAPACITANCE
Symbol
Parameter
CIN
Input Capacitance
CPD
Power Dissipation Capacitance
74ACT
74ACT
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
−
5.0
5.5
ns
3−9
5.0
−
1.0
1.0
ns
3−9
5.0
−
4.0
4.5
ns
3−9
5.0
−
1.0
1.0
ns
3−9
5.0
−
4.5
5.0
ns
3−6
5.0
−
1.0
1.0
ns
3−6
5.0
−
4.0
4.5
ns
3−9
5.0
−
3.5
3.5
ns
3−9
5.0
−
1.5
1.5
ns
3−9
Value
Typ
Unit
4.5
pF
170
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
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