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74AC74MTR Datasheet(PDF) 5 Page - STMicroelectronics

Part No. 74AC74MTR
Description  DUAL D-TYPE FLIP FLOP WITH PRESET AND CLEAR
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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74AC74MTR Datasheet(HTML) 5 Page - STMicroelectronics

 
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74AC74
5/12
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr =tf = 3ns)
(*) Voltage range is 3.3V
± 0.3V
(**) Voltage range is 5.0V
± 0.5V
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 xVCC xfIN +ICC/2 (per
Fli p-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.
tPLH tPHL Propagation Delay
Time CK to Q or Q
3.3(*)
7.0
14.0
16.0
17.5
ns
5.0(**)
5.0
10.0
10.5
12.0
tPLH tPHL Propagation Delay
Time PR or CLR to
Qor Q
3.3(*)
6.0
12.0
13.5
14.0
ns
5.0(**)
4.5
9.5
10.5
10.5
tW
Pulse Width HIGH
or LOW, CK or PR
or CLR
3.3(*)
5.0
1.5
7.0
7.0
ns
5.0(**)
4.0
1.5
5.0
5.0
ts
Setup Time D to CK
HIGH or LOW
3.3(*)
4.0
-0.2
4.0
4.0
ns
5.0(**)
3.0
-0.2
3.0
3.0
th
Hold Time D to CK
HIGH or LOW
3.3(*)
2.0
0.2
3.0
3.0
ns
5.0(**)
2.0
0.2
3.0
3.0
tREM
Removal Time
PR or CLR to CK
3.3(*)
1.0
-1.0
1.0
1.0
ns
5.0(**)
1.0
-0.7
1.0
1.0
fMAX
Maximum Clock
Frequency
3.3(*)
100
300
90
90
MHz
5.0(**)
140
300
130
130
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
5.0
3
pF
CPD
Power Dissipation
Capacitance
(note 1)
5.0
fIN = 10MHz
35
pF


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