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MC74LCX244_07 Datasheet, PDF (4/9 Pages) ON Semiconductor – Low−Voltage CMOS Octal Buffer With 5 V−Tolerant Inputs and Outputs (3−State, Non−Inverting)
MC74LCX244
DC ELECTRICAL CHARACTERISTICS
Symbol
Characteristic
Condition
TA = −40°C to +85°C
Min
Max
Unit
VIH
HIGH Level Input Voltage (Note 2)
VIL
LOW Level Input Voltage (Note 2)
VOH
HIGH Level Output Voltage
2.3 V ≤ VCC ≤ 2.7 V
1.7
V
2.7 V ≤ VCC ≤ 3.6 V
2.0
2.3 V ≤ VCC ≤ 2.7 V
0.7
V
2.7 V ≤ VCC ≤ 3.6 V
0.8
2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA
VCC − 0.2
V
VCC = 2.3 V; IOH = −8 mA
1.8
VCC = 2.7 V; IOH = −12 mA
2.2
VCC = 3.0 V; IOH = −18 mA
2.4
VOL
LOW Level Output Voltage
VCC = 3.0 V; IOH = −24 mA
2.2
2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA
0.2
V
VCC = 2.3 V; IOL= 8 mA
0.6
VCC = 2.7 V; IOL= 12 mA
0.4
VCC = 3.0 V; IOL = 16 mA
0.4
II
Input Leakage Current
IOZ
3−State Output Current
VCC = 3.0 V; IOL = 24 mA
2.3 V ≤ VCC ≤ 3.6 V; 0 V ≤ VI ≤ 5.5 V
2.3 ≤ VCC ≤ 3.6 V; 0 V ≤ VO ≤ 5.5 V;
VI = VIH or V IL
0.55
±5
mA
±5
mA
IOFF
Power−Off Leakage Current
VCC = 0 V; VI or VO = 5.5 V
ICC
Quiescent Supply Current
2.3 ≤ VCC ≤ 3.6 V; VI = GND or VCC
2.3 ≤ VCC ≤ 3.6 V; 3.6 ≤ VI or VO ≤ 5.5 V
DICC
Increase in ICC per Input
2.3 ≤ VCC ≤ 3.6 V; VIH = VCC − 0.6 V
2. These values of VI are used to test DC electrical characteristics only.
10
mA
10
mA
±10
500
mA
AC CHARACTERISTICS (tR = tF = 2.5 ns; RL = 500 W)
Limits
Symbol
Parameter
TA = −40°C to +85°C
VCC = 3.0 V to 3.6 V
VCC = 2.7 V
VCC = 2.5 V +0.2
CL = 50 pF
CL = 50 pF
CL = 30 pF
Waveform
Min
Max
Min
Max
Min
Max
Unit
tPLH
Propagation Delay
tPHL
Input to Output
1
1.5
6.5
1.5
7.5
1.5
7.8
ns
1.5
6.5
1.5
7.5
1.5
7.8
tPZH
Output Enable Time to
tPZL
High and Low Level
2
1.5
8.0
1.5
9.0
1.5
10
ns
1.5
8.0
1.5
9.0
1.5
10
tPHZ
Output Disable Time From
tPLZ
High and Low Level
2
1.5
7.0
1.5
8.0
1.5
8.4
ns
1.5
7.0
1.5
8.0
1.5
8.4
tOSHL Output−to−Output Skew
1.0
ns
tOSLH (Note 3)
1.0
3. 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 HIGH−to−LOW (tOSHL) or LOW−to−HIGH (tOSLH); parameter
guaranteed by design.
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