M74HC590 查看數據表（PDF） - STMicroelectronics
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M74HC590 Datasheet PDF : 14 Pages
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M54/M74HC590
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(H) Minimum Set-up 2.0
Time
4.5 50
(CCK - RCK)
6.0
76 175
220
255
19 35
44
51
ns
16 30
37
43
th
Minimum Hold
2.0
Time
4.5 50
0
0
0
0
0
0
ns
6.0
0
0
0
tREM Minimum Hold
Time
(CCLR)
2.0
4.5 50
6.0
28 75
7
15
6
13
95
110
19
22
ns
16
19
CIN Input Capacitance
5
10
10
10 pF
CPD (*) Power Dissipation
40
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
TEST WAVEFORM ICC (Opr.)
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