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74LCX162244 Datasheet(PDF) 8 Page - STMicroelectronics

Part # 74LCX162244
Description  Low voltage CMOS 16-bit bus buffer (3-state) with 5V tolerant inputs and outputs
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74LCX162244 Datasheet(HTML) 8 Page - STMicroelectronics

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Electrical characteristics
74LCX162244
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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