74LCX16240 Ver la hoja de datos (PDF) - STMicroelectronics
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fabricante
74LCX16240
STMicroelectronics
74LCX16240 Datasheet PDF : 15 Pages
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Electrical characteristics
74LCX16240
Table 7. AC electrical characteristics
Test condition
Value
Symbol
Parameter
VCC
CL
RL
ts = tr -40 to 85 °C Unit
(V)
(pF)
(Ω)
(ns)
Min Max
tPLH tPHL Propagation delay
2.7
50
500
2.5
1.5 5.3 ns
time
3.0 to 3.6
1.5 4.5
tPZL tPZH Output enable
2.7
50
500
2.5
1.5 6.0 ns
time
3.0 to 3.6
1.5 5.4
tPLZ tPHZ Output disable
2.7
50
500
2.5
1.5 5.4 ns
time
3.0 to 3.6
1.5 5.3
tOSLH
tOSHL
Output to output
skew time (1) (2)
3.0 to 3.6
50
500
2.5
1.0 ns
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
Table 8. Capacitive characteristics
Test condition
Symbol
Parameter
VCC
(V)
CIN
COUT
CPD
Input capacitance
Output capacitance
Power dissipation
capacitance (1)
3.3
VIN = 0 to VCC
3.3
VIN = 0 to VCC
3.3
fIN = 10MHz
VIN = 0 or VCC
Value
TA = 25 °C
Unit
Min Typ Max
7
pF
15
pF
60
pF
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)
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