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M74HCT74B1R Datasheet(PDF) 4 Page - STMicroelectronics

No. de pieza M74HCT74B1R
Descripción Electrónicos  DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HCT74B1R Datasheet(HTML) 4 Page - STMicroelectronics

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AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
CAPACITIVE CHARACTERISTICS
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/2 (per FLIP/
FLOP)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH tTHL Output Transition
Time
4.5
8
151922
ns
tPLH tPHL Propagation Delay
Time (CLOCK-Q)
4.5
21
33
41
50
ns
tPLH tPHL Propagation Delay
Time (CL,PR - Q,Q)
4.5
18
30
38
45
ns
fMAX
Maximum Clock
Frequency
4.5
27
48
22
18
MHz
tW(H)
tW(L)
Minimum Pulse
Width (CLOCK)
4.5
6
151923
ns
tW(L)
Minimum Pulse
Width (CLR, PR)
4.5
8
151923
ns
ts
Minimum Set-Up
Time
4.5
7
151923
ns
th
Minimum Hold
Time
4.5
0
0
0
ns
tREM
Minimum Removal
Time (CLR, PR to
CLOCK)
4.5
155658
ns
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
5
101010
pF
CPD
Power Dissipation
Capacitance (note
1)
32
pF


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