M74HCT534 查看數據表（PDF） - STMicroelectronics
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M74HCT534
STMicroelectronics
M74HCT534 Datasheet PDF : 13 Pages
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M54/M74HCT374/534
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC CL
(V) (pF)
tTLH Output Transition 4.5 50
tTHL Time
tPLH Propagation
4.5 50
tPHL Delay Time
4.5 150
(CLOCK - Q, Q)
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.
7 12
15
18
ns
20 30
38
45
ns
25 38
48
57
ns
tPZL Output Enable
4.5 50 RL = 1 KΩ
17 30
38
45
ns
tPZH Time
4.5 150 RL = 1 KΩ
25 38
48
57
ns
tPZL Output Disable
tPZH Time
4.5 50 RL = 1 KΩ
16 28
35
42
ns
fMAX Maximum CLock 4.5 50
Frequency
31 50
25
21
ns
tW(L)
tW(H)
Minimum Pulse
Width (CLOCK)
4.5 50
15
19
23
ns
ts
Minimum Set-up 4.5 50
Time
15
19
23
ns
th
Minimum Hold
Time
4.5 50
0
0
0
ns
CIN Input Capacitance
5 10
10
10
pF
COUT Out put
10
Capacitance
pF
CPD (*) Power Dissipation
48
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/8 (per FLIP-FLOP) and CPD
when N pcs of FLIP-FLOP operate, can be gained by following equation: CPD (TOTAL) = 38 + 18 x N (pF)
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