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74LCX162541 Fiches technique(PDF) 8 Page - STMicroelectronics

No de pièce 74LCX162541
Description  Low voltage CMOS 16-bit bus buffer with 5V tolerant inputs and outputs
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74LCX162541 Fiches technique(HTML) 8 Page - STMicroelectronics

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Electrical characteristics
74LCX162541
8/15
Table 7. AC electrical characteristics
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
CL
(pF)
RL
(
Ω)
ts = tr
(ns)
-40 to 85 °C
Min
Max
tPLH tPHL
Propagation
delay time
2.7
50
500
2.5
1.5
5.6
ns
3.0 to 3.6
1.5
4.4
tPZL tPZH
Output enable
time
2.7
50
500
2.5
1.5
6.3
ns
3.0 to 3.6
1.5
5.9
tPLZ tPHZ
Output disable
time
2.7
50
500
2.5
1.5
6.3
ns
3.0 to 3.6
1.5
5.9
tOSLH
tOSHL
Output to output
skew time (1) (2)
1.
Skew is defined as the absolute value of the difference between the actual propagation delay for any two
outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|,
tOSHL = | tPHLm - tPHLn|)
2.
Parameter guaranteed by design
3.0 to 3.6
50
500
2.5
1.0
ns
Table 8. Capacitive characteristics
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25 °C
Min
Typ
Max
CIN
Input capacitance
4
pF
COUT
Output capacitance
10
pF
CPD
Power dissipation
capacitance (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/16 (per circuit)
3.3
fIN = 10MHz
VIN = 0 or VCC
50
pF


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