IZ74HC221AZ 查看數據表（PDF） - Integral Corp.
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IZ74HC221AZ 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
°C
°C
25°C
tPHL
Maximum
A, B - Q
Propagation
VIL=0
V 2.0 180
225
270
ns
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 VIL=0
V 2.0 75
95
110
ns
Time, Any Output(Figures 2 VIH=VCC
4.5 16
20
22
and 3)
tLH=tHL=6 нс 6.0 14
17
20
CL=50 pF
CIN
Maximum A , B, RESET
Input
Capacitance
CX, RX
-
10
10
10
pF
20
20
20
CPD
Power
Dissipation
5.0
180*
pF
Capacitance
(Per Multivibrator)
PD=CPDVCC2f+ICCVCC
trec
Minimum Recovery Time, VIL=0
V 2.0 100
125
150
ns
Inactive to A or B VIH=VCC
4.5 20
25
30
(Figure 2)
tLH=tHL=6 нс 6.0 17
21
26
CL=50 pF
tw
Minimum
A, RESET VIL=0
V 2.0 25
95
110
ns
Pulse 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
6.0
0.75*
0.70*
СEXT =1 µF 2.0
REXT=10 kΩ 4.5
6.0
80*
75*
70*
* ТА=25±10°C
4
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