M74HC597 查看數據表（PDF） - STMicroelectronics
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M74HC597 Datasheet PDF : 13 Pages
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M54/M74HC597
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC
(V)
TA = 25 oC
54HC and 74HC
Value
-40 to 85 oC -55 to 125 oC Unit
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
fMAX Maximum Clock 2.0
Frequency
4.5
6.0 12
4.8
4.0
30 48
24
20
ns
6.0
35 50
28
24
tW(H) Propagation
2.0
tW(L) Delay Time
4.5
(SCK, RCK)
6.0
20 75
7
15
4
13
95
110
19
22
ns
16
19
tW(L) Propagation
2.0
Delay Time
4.5
(SCLR, SLOAD) 6.0
25 75
7
15
5
13
95
110
19
22
ns
16
19
tS
Minimum Set-up 2.0
Time
4.5
(RCK - SLOAD) 6.0
48 100
125
150
12 20
25
30
ns
10 17
21
26
tS
Minimum Set-up 2.0
Time
4.5
(SI, SCK)
6.0
20 75
5
15
4
13
95
110
19
22
ns
16
19
tS
Minimum Set-up 2.0
Time
4.5
(PI - RCK)
6.0
20 75
5
15
4
13
95
110
19
22
ns
16
19
tf
Minimum Hold
2.0
Time
4.5
0
0
0
0
0
0
ns
6.0
0
0
0
tREM Propagation
2.0
Delay Time
4.5
(SCLR, SLOAD) 6.0
12 75
4
15
3
13
95
115
19
23
ns
16
20
CIN Input Capacitance
5
10
10
10 pF
CPD (*) Power Dissipation
60
Capacitance
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC
SWITCHING CHARACTERISTICS TEST WAVEFORM
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