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