M74HCT273B1R Ver la hoja de datos (PDF) - STMicroelectronics
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M74HCT273B1R Datasheet PDF : 10 Pages
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M74HCT273
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Conditions
Value
Symbol
Parameter
VCC
(V)
tTLH tTHL Output Transition
Time
4.5
tPLH tPHL Propagation Delay
Time
4.5
(CLOCK - Q)
tPHL Propagation Delay
Time
4.5
(CLEAR - Q)
fMAX Maximum Clock
Frequency
4.5
tW(H)
tW(L)
Minimum Pulse
(CLOCK)
4.5
tW(L) Minimum Pulse
(CLEAR)
4.5
ts
Minimum Set-Up
Time
4.5
th Minimum Hold
Time
4.5
tREM
Minimum Removal
Time (CLEAR)
4.5
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
9 15
19
22 ns
19 30
38
45 ns
22 32
40
48 ns
30 80
24
20
MHz
7 15
19
22 ns
7 15
19
22 ns
4 15
19
22 ns
0
0
0 ns
4 10
13
15 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 5.0
5 10
10
10 pF
CPD Power Dissipation
Capacitance (note 5.0
29
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/8 (per FLIP
FLOP), and the total CPD when n pcs of FLIP FLOP operate can be gained by the following equations: CPD (total) = 32 + 11 x n
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