M74HCT174B1R 查看數據表（PDF） - STMicroelectronics
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M74HCT174B1R Datasheet PDF : 10 Pages
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M74HCT174
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Value
Symbol
Parameter
VCC
(V)
tTLH tTHL Output Transition
Time
4.5
tPLH tPHL Propagation Delay
Time (CLOCK - Q)
4.5
tPLH tPHL Propagation Delay
Time (CLEAR - Q)
4.5
fMAX Maximum Clock
Frequency
4.5
tW(H)
tW(L)
Minimum Pulse
Width (CLOCK)
4.5
tW(L) Minimum Pulse
Width (CLEAR)
4.5
ts
Minimum Set-up
Time
4.5
th Minimum Hold
Time
4.5
tREM
Minimum Removal
Time
4.5
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
8 15
19
22 ns
18 28
35
ns
18 28
35
42 ns
30 56
24
MHz
8 15
19
22 ns
8 15
19
22 ns
2 10
13
15 ns
5
6
8 ns
5
5
5
5 ns
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
CIN Input Capacitance
5 10
10
10 pF
CPD Power Dissipation
Capacitance (note
68
pF
1)
1) 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 operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/6 (per FLIP/
FLOP)
And the total CPD when N pcs of FLIP-FLOP operate can be gained by the following equation : CPD (total) = 38 + 15 x n
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