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MC74LVX244 Datasheet, PDF (4/8 Pages) Motorola, Inc – LOW-VOLTAGE CMOS | |||
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MC74LVX244
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà TA = 25°C
TA = â 40 to 85°C
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Symbol
Parameter
Test Conditions
Min Typ Max Min
Max
Unit
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPLH,
tPHL
Propagation Delay
Input to Output
VCC = 2.7V
CL = 15pF
CL = 50pF
6.1 11.4 1.0
13.5
ns
8.6 14.9 1.0
17.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà VCC = 3.3 ± 0.3V
CL = 15pF
CL = 50pF
4.7 7.1
1.0
8.5
7.2 10.6 1.0
12.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPZL,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPZH
Output Enable Time to
High and Low Level
VCC = 2.7V
RL = 1kW
CL = 15pF
CL = 50pF
7.1 13.8 1.0
16.5
ns
9.6 17.3 1.0
20.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà VCC = 3.3 ± 0.3V
RL = 1kW
CL = 15pF
CL = 50pF
5.5 8.8
1.0
10.5
8.0 12.3 1.0
14.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPLZ,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPHZ
Output Disable Time From
High and Low Level
VCC = 2.7V
RL = 1kW
CL = 50pF
11.6 16.0 1.0
19.0
ns
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà VCC = 3.3 ± 0.3V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ RL = 1kW
CL = 50pF
9.7 11.4 1.0
13.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tOSHL OutputâtoâOutput Skew
tOSLH (Note 1)
VCC = 2.7V
VCC = 3.3 ±0.3V
CL = 50pF
CL = 50pF
1.5
1.5
ns
1.5
1.5
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGHâtoâLOW (tOSHL) or LOWâtoâHIGH (tOSLH); parameter
guaranteed by design.
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ CAPACITIVE CHARACTERISTICS
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Symbol
Parameter
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Cin InputCapacitance
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Cout Maximum ThreeâState Output Capacitance
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ CPD PowerDissipationCapacitance(Note2)
TA = 25°C
TA = â 40 to 85°C
Min Typ Max Min
Max
Unit
4 10
10
pF
6
pF
19
pF
2. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: ICC(OPR) = CPD VCC fin + ICC / 8 (per bit). CPD is used to determine the noâload
dynamic power consumption; PD = CPD VCC2 fin + ICC VCC.
NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 3.3V, Measured in SOIC Package)
TA = 25°C
Symbol
Characteristic
Typ
Max
Unit
VOLP Quiet Output Maximum Dynamic VOL
0.5
0.8
V
VOLV Quiet Output Minimum Dynamic VOL
â0.5
â0.8
V
VIHD Minimum High Level Dynamic Input Voltage
2.0
V
VILD Maximum Low Level Dynamic Input Voltage
0.8
V
http://onsemi.com
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