MM74HC597N Просмотр технического описания (PDF) - Fairchild Semiconductor
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MM74HC597N Datasheet PDF : 8 Pages
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AC Electrical Characteristics VCC = 5V, TA = 25°C, CL = 15 pF, tr = tf = 6 ns
Symbol
Parameter
fMAX
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tREM
tS
tS
tS
tH
tW
Maximum Operating
Frequency of SCK
Maximum Propagation
Delay from SCK to QH
Maximum Propagation
Delay from SLOAD to QH
Maximum propagation
Delay from RCK to QH
Maximum Propagation
Delay from SCLR to QH
Minimum Removal Time,
SCLR to SCK
Minimum Setup Time
from RCK to SCK
Minimum Setup Time
from SER to SCK
Minimum Setup Time
from inputs A thru H
to RCK
Minimum Hold Time
Minimum Pulse Width
SCK, RCK, SCLR SLOAD
Conditions
SLOAD = logic “0”
Guaranteed
Typ
Limit
50
30
20
30
20
30
25
45
20
30
10
20
30
40
10
20
10
20
−2
0
10
16
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC Electrical Characteristics VCC = 2.0–6.0V, CL = 50 pF, tr = tf = 6 ns (unless otherwise specified)
Symbol
Parameter
fMAX
Maximum Operating
Frequency
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tREM
Maximum Propagation
Delay from SCK to QH
Maximum Propagation
Delay from SLOAD to QH
Maximum Propagation
Delay from RCK to QH
Maximum Propagatin
Delay from SCLR to QH
Minimum Removal Time
SCLR to SCK
tS
Minimum Setup Time
from RCK to SCK
tS
Minimum Setup Time
from SER to SCK
Conditions
SLOAD = Logic “0”
VCC
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
2.0V
4.5V
6.0V
TA = 25°C
Typ
10
6.0
45
30
50
35
62
175
20
35
18
30
65
175
20
35
18
30
120
205
30
41
28
35
66
175
20
35
18
30
100
20
17
200
40
34
100
20
17
TA=−40 to 85°C TA=−55 to 125°C
Units
Guaranteed Limits
4.8
4.0
24
20
MHz
28
24
220
263
44
53
ns
38
45
220
263
44
53
ns
38
45
255
310
51
62
ns
43
53
220
263
44
53
ns
38
45
125
150
25
30
ns
21
25
250
300
50
60
ns
42
50
125
150
25
30
ns
21
25
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