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MC74LVQ245 Datasheet, PDF (4/8 Pages) Motorola, Inc – LOW-VOLTAGE CMOS OCTAL TRANSCEIVER | |||
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MC74LVQ245
DYNAMIC SWITCHING CHARACTERISTICS (VCC = 3.3V)
Symbol
Characteristic
Condition
TA = +25°C
Min Typ Max Unit
VOLP
VOLV
VIHD
Dynamic LOW Peak Voltage (Note 1)
Dynamic LOW Valley Voltage (Note 1)
High Level Dynamic Input Voltage
(Note 2)
CL = 50pF, VIH = 3.3V, VIL = 0V
CL = 50pF, VIH = 3.3V, VIL = 0V
InputâUnderâTest Switching 0V to Threshold,
f=1MHz
0.6
1.0
V
â0.5 â1.0
V
1.5
2.0
V
VILD
Low Level Dynamic Input Voltage
(Note 2)
InputâUnderâTest Switching 3.3V to Threshold,
f=1MHz
1.5
0.8
V
1. Number of outputs defined as ânâ. Measured with ânâ1â outputs switching from HIGHâtoâLOW. The remaining output is measured in the
LOW state.
2. Number of data inputs is defined as ânâ switching, ânâ1â inputs switching 0V to 3.3V.
AC CHARACTERISTICS (tR = tF = 2.5ns; CL = 50pF; RL = 500â¦)
Limits
Symbol
Parameter
TA = +25°C
TA = â40°C to +85°C
VCC = 3.0V to 3.6V
VCC = 2.7V
VCC = 3.0V to 3.6V VCC = 2.7V
Min Typ Max Min Typ Max Min
Max
Max
Unit
tPLH
tPHL
Propagation Delay
Input to Output
2.0 7.0 10.0 2.0 8.0 11.5
2.0
10.5
12.5
ns
2.0 7.0 10.0 2.0 8.0 11.5
2.0
10.5
12.5
tPZH
tPZL
Output Enable Time
to High and Low Level
2.5 8.0 11.5 2.5 9.5 13.5
2.5
13.0
15.0
ns
2.5 8.5 13.0 2.5 11.0 15.0
2.5
13.5
16.5
tPHZ
Output Disable Time
1.0 8.5 12.5 1.0 10.5 14.0
1.0
14.0
15.0
ns
tPLZ
From High and Low Level
1.0 8.5 12.5 1.0 10.5 15.0
1.0
14.0
17.0
tOSHL
OutputâtoâOutput Skew
1.0 1.5
1.0 1.5
1.5
ns
tOSLH
(Note 1)
1.0 1.5
1.0 1.5
1.5
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.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
CPD
CIN
CI/O
Power Dissipation Capacitance
Input Capacitance
Input/Output Capacitance
Condition
Typical
Unit
10MHz, VCC = 3.3V, VI = 0V or VCC
27
pF
VCC = Open, VI = 0V or VCC
4.5
pF
VCC = 3.3V, VI = 0V or VCC
15
pF
MOTOROLA
4
ECLinPS and ECLinPS Lite
DL140 â Rev 3
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