IN74HC221A Просмотр технического описания (PDF) - IK Semicon Co., Ltd
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IN74HC221A Datasheet PDF : 7 Pages
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IN74HC221A
AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test
VCC
Guaranteed Limit
Unit
Conditions
V -55°C
≤85
≤125
to 25°C °C
°C
tPHL
Maximum
A, B - Q
VIL=0 V
2.0 180
225
270
ns
Propagation
VIH=VCC
4.5 36
45
54
Delay
tLH=tHL=6 ns
6.0
31
38
46
RESET - Q CL=50 pF
2.0 180
225
270
CEXT=0
4.5 36
45
54
REXT=5 kΩ
6.0 31
38
46
RESET - Q
2.0 195
245
295
4.5 39
49
59
6.0 33
42
50
tPLH
Maximum
A, B - Q
VIL=0 V
2.0 220
275
330
ns
Propagation
VIH=VCC
4.5 44
55
66
Delay
tLH=tHL=6 ns
6.0
37
47
56
RESET - Q CL=50 pF
2.0 245
305
370
CEXT=0
4.5 49
61
74
REXT=5 kΩ
6.0 42
52
63
RESET - Q
2.0 200
250
300
4.5 40
50
60
6.0 34
43
51
tTLH, tTHL
Maximum Output Transition
Time, Any Output(Figures 2
and 3)
VIL=0 V
2.0 75
VIH=VCC
4.5 16
tLH=tHL=6 нс 6.0
14
CL=50 pF
95
110
ns
20
22
17
20
CIN
Maximum Input A, B, RESET
Capacitance
CX, RX
CPD
Power Dissipation Capacitance
(Per Multivibrator)
-
10
10
10
pF
20
20
20
5.0
180*
pF
PD=CPDVCC2f+ICCVCC
trec
Minimum Recovery Time,
Inactive to A or B
(Figure 2)
VIL=0 V
2.0 100
125
150
ns
VIH=VCC
4.5 20
25
30
tLH=tHL=6 нс 6.0
17
21
26
CL=50 pF
tw
Minimum Pulse A, RESET VIL=0 V
2.0 25
95
110
ns
Width
VIH=VCC
4.5
9
19
22
tLH=tHL=6 ns
6.0
7
16
19
B
CL=50 pF
2.0 30
115
135
CEXT=0
4.5 11
23
27
REXT=5 kΩ
6.0
9
20
23
tWQ
Minimum Pulse Width
СEXT =0 пФ
5.0
105*
ns
(Figure 4)
REXT=5 kΩ
СEXT =1 nF
2.0
0.80*
µs
REXT=10 kΩ
4.5
0.75*
6.0
0.70*
СEXT =1 µF
2.0
80*
REXT=10 kΩ
4.5
75*
6.0
70*
* ТА=25±10°C
Rev. 00
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