IN74HC221 데이터 시트보기 (PDF) - Integral Corp.
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IN74HC221 Datasheet PDF : 6 Pages
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IN74HC221
AC ELECTRICAL CHARACTERISTICS(CL=50pF,Input tr=tf=6.0 ns)
Symbol
Parameter
tPLH, tPHL Maximum Propagation Delay, Input A or B to Q
or Q (Figures 1 and 3)
tPLH, tPHL Maximum Propagation Delay , CLR to Q or Q
(Figures 2 and 3)
tTLH, tTHL Maximum Output Transition Time, Any
Output(Figures 2 and 3)
CIN Maximum Input Capacitance
A, B, CLR
CX, RX
VCC
Guaranteed Limit
V 25 °C ≤85°C ≤125°C Unit
to
-55°C
2.0 255
320
385
ns
4.5 50
65
75
6.0 45
55
65
2.0 215
270
325
ns
4.5 45
55
65
6.0 35
45
55
2.0 75
4.5 16
6.0 14
95
110
ns
20
22
17
20
-
10
10
10
pF
25
25
25
Power Dissipation Capacitance
(Per Multivibrator)
CPD Used to determine the no-load dynamic power
consumption:
PD=CPDVCC2f+ICCVCC
Typical @25°C,VCC=5.0 V
150
pF
TIMING REQUIREMENTS(CL=50pF,Input tr=tf=6.0 ns)
VCC
Symbol
Parameter
V
trec
Minimum Recovery Time, 2.0
Inactive to A or B
4.5
(Figure 2)
6.0
tw
Minimum Pulse Width,
2.0
Input A or B (Figure 1)
4.5
6.0
tw
Minimum Pulse Width,
2.0
CLR (Figure 2)
4.5
6.0
tr, tr
Maximum Input Rise and
2.0
Fall Times, CLR
4.5
(Figure 2)
6.0
A or B (Figure 2)
2.0
4.5
6.0
Guaranteed Limit
25 °C to
-55°C
≤85°C
≤125°C
Unit
0
0
0
ns
0
0
0
0
0
0
100
125
150
ns
20
25
30
17
20
25
100
125
150
ns
20
25
30
17
20
25
1000
500
400
1000
500
400
1000
ns
500
400
No Limit
268
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