SL74HC221D Просмотр технического описания (PDF) - System Logic Semiconductor
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SL74HC221D Datasheet PDF : 6 Pages
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SL74HC221
AC ELECTRICAL CHARACTERISTICS(CL=50pF,Input tr=tf=6.0 ns)
Symbol
Parameter
VCC
Guaranteed Limit
V 25 °C to ≤85°C ≤125°C Unit
-55°C
tPLH, tPHL Maximum Propagation Delay, Input A or B to Q or 2.0 255
320
385
ns
Q (Figures 1 and 3)
4.5 50
65
75
6.0 45
55
65
tPLH, tPHL Maximum Propagation Delay , CLR to Q or Q
(Figures 2 and 3)
2.0 215
270
325
ns
4.5 45
55
65
6.0 35
45
55
tTLH, tTHL Maximum Output Transition Time, Any
Output(Figures 2 and 3)
2.0 75
95
110
ns
4.5 16
20
22
6.0 14
17
20
CIN
Maximum Input Capacitance
A, B, CLR
CX, RX
-
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
1000
1000
ns
500
500
500
400
400
400
No Limit
SLS
System Logic
Semiconductor
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