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74LVQ374 Folha de dados(PDF) 5 Page - STMicroelectronics

Nome de Peças 74LVQ374
Descrição Electrónicos  OCTAL D-TYPE FLIP-FLOP WITH 3 STATE OUTPUTS NON INVERTING
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
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Table 8: AC Electrical Characteristics (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns)
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW (tOSLH = |tPLHm - tPLHn|, tOSHL = |tPHLm - tPHLn|)
2) Parameter guaranteed by design
(*) Voltage range is 3.3V
± 0.3V
Table 9: 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/8 (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.
tPLH
tPHL
Propagation Delay
Time CK to Q
2.7
7.7
12.0
14.0
16.0
ns
3.3(*)
6.3
9.0
10.5
12.0
tPLZ
tPHZ
Output Disable
Time
2.7
8.8
13.0
15.0
17.0
ns
3.3(*)
7.2
10.0
11.5
13.0
tPZL
tPZH
Output Enable
Time
2.7
9.2
13.0
15.0
17.0
ns
3.3(*)
7.2
10.0
11.5
13.0
tW
Clock Pulse Width
HIGH
2.7
4.0
1.5
4.0
4.0
ns
3.3(*)
3.0
1.1
3.0
3.0
tsL
tsH
Setup Time D to
CK, HIGH or LOW
2.7
3.0
0.0
3.0
3.0
ns
3.3(*)
2.0
0.0
2.0
2.0
thL
thH
Hold Time CK to D,
HIGH or LOW
2.7
1.0
0.0
1.0
1.0
ns
3.3(*)
1.5
0.0
1.5
1.5
fMAX
Maximum Clock
Frequency
2.7
100
150
80
60
MHz
3.3(*)
120
180
100
80
tOSLH
tOSHL
Output To Output
Skew Time
(note1, 2)
2.7
0.5
1.0
1.0
1.0
ns
3.3(*)
0.5
1.0
1.0
1.0
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
3.3
4
pF
COUT
Output
Capacitance
3.3
7
pF
CPD
Power Dissipation
Capacitance (note
1)
3.3
fIN = 10MHz
15
pF


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