54HC595 データシートの表示（PDF） - STMicroelectronics
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54HC595 Datasheet PDF : 13 Pages
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M54/M74HC595
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC CL
(V) (pF)
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.
ts
Minimum Set-up 2.0
Time
4.5 50
(SCK - RCK)
6.0
35 75
8
15
6
13
95
110
19
22
ns
16
19
ts
Minimum Set-up 2.0
Time
4.5 50
(SCRL - RCK)
6.0
40 100
125
145
10 20
25
29
ns
7
17
21
25
th
Minimum Hold
2.0
Time
4.5 50
0
0
0
0
0
0
ns
6.0
0
0
0
tREM Minimum Clear
Remuval Time
2.0
4.5 50
15 50
65
75
3
10
13
15
ns
6.0
3
9
11
13
CIN Input Capacitance
5
10
10
10 pF
CPD (*) Power Dissipation
184
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
WAVEFORM 1
WAVEFORM 2
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