MM74HC259MTCX 查看數據表（PDF） - Fairchild Semiconductor
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MM74HC259MTCX Datasheet PDF : 7 Pages
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AC Electrical Characteristics
(VCC = 5.0V, TA = 25°C, tr = tf = 6 ns, CL = 15 pF unless otherwise specified.)
Symbol
Parameter
Conditions
tPHL, tPLH
tPHL, tPLH
tPHL, tPLH
tPHL
tW
tW
tr, tf
ts
tH
Maximum Propagation Delay
Data to Output
Maximum Propagation Delay
Select to Output
Maximum Propagation Delay
Enable to Output
Maximum Propagation Delay
Clear to Output
Minimum Enable Pulse Width
Minimum Clear Pulse Width
Maximum Input Rise and Fall Time
Minimum Setup Time Select or
Data to Enable
Minimum Hold Time Data or
Address to Enable
Guaranteed
Typ
Units
Limit
18
32
ns
20
38
ns
20
35
ns
17
27
ns
10
16
ns
10
16
ns
500
ns
15
20
ns
−2
0
ns
AC Electrical Characteristics
tr = tf = 6 ns, CL = 50 pF, VCC = 2.0V – 6.0V
Symbol
Parameter
Conditions
VCC
TA = 25°C
Typ
TA = −40 to 85°C TA = −55 to 125°C
Guaranteed Limits
tPHL, tPLH Maximum Propagation Delay
Data to Output
2.0V
60
180
225
250
4.5V
19
37
46
52
6.0V
17
32
40
45
tPHL, tPLH Maximum Propagation Delay
Select to Output
2.0V
72
220
275
310
4.5V
21
43
54
60
6.0V
18
37
46
52
tPHL, tPLH Maximum Propagation Delay
Enable to Output
2.0V
65
200
250
280
4.5V
27
40
50
58
6.0V
23
35
44
50
tPHL
Maximum Propagation Delay
Clear to Output
2.0V
50
150
190
210
4.5V
18
31
39
44
6.0V
16
26
32
37
tW
Minimum Pulse Width
Clear or Enable
2.0V
4.5V
80
100
120
16
20
24
6.0V
14
18
20
ts
Minimum Setup Time Address
or Data to Enable
2.0V
4.5V
100
125
150
20
25
28
6.0V
15
19
25
tH
Minimum Hold Time Address
or Data to Enable
2.0V
−10
0
0
0
4.5V
−2
0
0
0
6.0V
−2
0
0
0
tTLH, tTHL Maximum Output Rise
and Fall Time
2.0V
30
75
95
110
4.5V
8
15
19
22
6.0V
7
13
16
19
CIN
Input Capacitance
CPD
Power Dissipation
Capacitance (Note 5)
(per package)
5
10
10
10
80
Note 5: CPD determines the no load dynamic power consumption, PD = CPD VCC2 f + ICC VCC, and the no load dynamic current consumption,
IS = CPDs VCCsf + ICC.
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF
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