MC74AC190N 查看數據表（PDF） - Motorola => Freescale
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MC74AC190N Datasheet PDF : 8 Pages
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AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Setup Time, HIGH or LOW
Pn to PL
th
Hold Time, HIGH or LOW
Pn to PL
ts
Setup Time, LOW
CE to CP
th
Hold Time, LOW
CE to CP
ts
Setup Time, HIGH or LOW
U/D to CP
th
Hold Time HIGH or LOW
U/D to CP
tw
PL Pulse Width, LOW
tw
CP Pulse Width, LOW
trec
Recovery Time
PL to CP
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
CAPACITANCE
Symbol
Parameter
CIN
CPD
Input Capacitance
Power Dissipation Capacitance
MC74AC190
74AC190
74AC190
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
3.3
0.5
0.5
ns
3-9
5.0
0
0
3.3
0
0
ns
3-9
5.0
0
0
3.3
6.5
7.5
ns
3-9
5.0
4.5
5.0
3.3
0
0
ns
3-9
5.0
0
0
3.3
8.5
9.5
ns
3-9
5.0
5.0
6.0
3.3
0
0
ns
3-9
5.0
0
0
3.3
5.0
5.5
ns
3-6
5.0
3.5
4.0
3.3
5.0
5.5
ns
3-6
5.0
3.5
4.0
3.3
0.5
0.5
ns
3-9
5.0
0
0
Value
Typ
Unit
4.5
pF
75
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
FACT DATA
5-7
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