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MC74AC4020 데이터 시트보기 (PDF) - Motorola => Freescale
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MC74AC4020
14-Stage Binary Ripple Counter
Motorola => Freescale
MC74AC4020 Datasheet PDF : 5 Pages
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MC74AC4020
AC CHARACTERISTICS
(For Figures and Waveforms — See Section 3)
74AC
74AC
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
3.3 110
0
100
5.0 130 140
120
MHz
tPLH
Propagation Delay
CP to Q1
3.3 2.0
5.0 2.0
11 2.0 14
ns
8.0 2.0 10
tPHL
Propagation Delay
CP to Q1
3.3 2.0
5.0 2.0
11 2.0 14
ns
8.0 2.0 10
tPLH
Propagation Delay
CP to Q4
3.3 2.0
5.0 2.0
18 2.0 21
ns
13 2.0 16
tPHL
Propagation Delay
CP to Q4
3.3 2.0
5.0 2.0
18 2.0 21
ns
13 2.0 16
tPHL
Propagation Delay
Reset to any Q
3.3 3.0
5.0 3.0
12 3.0 15
ns
10 3.0 12
tPHL
tPHL
trec
MR to CP
Propagation Delay
On to Qn +1
Propagation Delay
On to Qn +1
Recovery Time
3.3
0
5.0
0
5.5
0
6.5
ns
3.5
0
4.5
3.3
0
5.0
0
5.5
0
6.5
ns
3.5
0
4.5
3.3
0 –2.5
0
5.0
0 –1.5
0
ns
tw CP
Minimum Pulse Width
Clock Pin
3.3 4.0 3.5
4.5
ns
5.0 3.0 2.5
3.5
tw MR
Minimum Pulse Width
Master Reset
3.3 4.0 3.5
4.5
ns
5.0 3.0 2.5
3.5
* 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
Value
Typ
Unit
4.5
pF
50
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
FACT DATA
5-4
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