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74LCX125 датащи(PDF) 4 Page - STMicroelectronics

номер детали 74LCX125
подробное описание детали  LOW VOLTAGE CMOS QUAD BUS BUFFER (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS
PDF  12 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74LCX125 датащи(HTML) 4 Page - STMicroelectronics

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Table 7: Dynamic Switching Characteristics
1) Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is
measured in the LOW state.
Table 8: AC Electrical Characteristics
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
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/4 (per gate)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25 °C
Min.
Typ.
Max.
VOLP
Dynamic Low Level Quiet
Output (note 1)
3.3
CL = 50pF
VIL = 0V, VIH = 3.3V
0.8
V
VOLV
-0.8
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
CL
(pF)
RL
(
Ω)
ts = tr
(ns)
-40 to 85 °C
-55 to 125 °C
Min.
Max.
Min.
Max.
tPLH tPHL
Propagation Delay
Time
2.7
50
500
2.5
6.0
6.9
ns
3.0 to 3.6
1.0
5.2
1.0
6.0
tPZL tPZH
Output Enable Time
to HIGH and LOW
level
2.7
50
500
2.5
1.0
6.0
1.0
6.9
ns
3.0 to 3.6
1.0
5.0
1.0
6.0
tPLZ tPHZ
Output Disable Time
to HIGH and LOW
level
2.7
50
500
2.5
1.0
6.0
1.0
6.9
ns
3.0 to 3.6
1.0
5.0
1.0
6.0
tOSLH
tOSHL
Output To Output
Skew Time (note1,
2)
3.0 to 3.6
50
500
2.5
1.0
1.0
ns
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25 °C
Min.
Typ.
Max.
CIN
Input Capacitance
3.3
VIN = 0 to VCC
5pF
COUT
Output Capacitance
3.3
VIN = 0 to VCC
10
pF
CPD
Power Dissipation Capacitance
(note 1)
3.3
fIN = 10MHz
VIN = 0 or VCC
37
pF



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