MC74ACT112 查看數據表（PDF） - Motorola => Freescale
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MC74ACT112 Datasheet PDF : 6 Pages
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MC74AC112 MC74ACT112
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
fmax
Maximum Clock
Frequency
5.0 145
125
MHz
3-3
tPLH
Propagation Delay
CPn to Qn or Qn
tPHL
Propagation Delay
CPn to Qn or Qn
tPLH
Propagation Delay
CDn or SDn to Qn or Qn
tPHL
Propagation Delay
CDn or SDn to Qn or Qn
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 1.0
5.0 1.0
5.0 1.0
5.0 1.0
14.0 1.0 15.0
ns
3-6
14.0 1.0 14.5
ns
3-6
12.0 1.0 12.5
ns
3-6
12.5 1.0 13.0
ns
3-6
AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Set-up Time, HIGH or LOW
Jn or Kn to CPn
th
Hold Time, HIGH or LOW
Jn or Kn to CPn
tw
Pulse Width
CPn
tw
Pulse Width
CDn or SDn
trec
Recovery TIme
CDn or SDn to CP
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
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
2.0
2.5
ns
3-9
5.0
2.0
2.0
ns
3-9
5.0
5.0
6.0
ns
3-6
5.0
5.5
6.0
ns
3-6
5.0
0
0
ns
3-9
CAPACITANCE
Symbol
Parameter
CIN
CPD
Input Capacitance
Power Dissipation Capacitance
Value
Typ
Unit
4.5
pF
35
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
FACT DATA
5-5
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