參數(shù)資料
型號： M54HCT273F1R
廠商： 意法半導(dǎo)體
英文描述： Low Voltage Adjustable Precision Shunt Regulator 5-SOT-23 -40 to 85
中文描述： 八進(jìn)制D型觸發(fā)器與清除
文件頁數(shù)： 5/10頁
文件大?。?/td> 244K
代理商： M54HCT273F1R
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
-55 to 125
o
C
54HC
Min.
Max.
15
Max.
19
Max.
22
t
TLH
t
THL
t
PLH
t
PHL
Output Transition
Time
Propagation
Delay Time
(CLOCK - Q)
Propagation
Delay Time
(CLEAR - Q)
Maximum Clock
Frequency
Input Capacitance
Power Dissipation
Capacitance
4.5
9
ns
4.5
19
30
38
45
ns
t
PLH
t
PHL
4.5
22
32
40
48
ns
f
MAX
4.5
30
71
24
MHz
C
IN
5
10
10
10
pF
pF
C
PD
(*)
29
(*) C
PD
isdefined asthe value ofthe IC’sinternal equivalent capactance which is calculated from the operating current consumption without load.
(Refer toTestCircuit). Average operting current can beobtained by thefollowing equation. I
CC
(opr)= C
PD
V
CC
f
IN
+ I
CC
/8(per FlipFLop), and the
total CPDwhen n pcs of FlipFlop operate can be gained bythe followingequations: CPD (total) =32 + 11x n
SWITCHING CHARACTERISTICS TEST WAVEFORM
TEST CIRCUIT I
CC
(Opr.)
M54/M74HCT273
5/10
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