MC74LCX257(2012) Просмотр технического описания (PDF) - ON Semiconductor
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MC74LCX257 Datasheet PDF : 8 Pages
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MC74LCX257
DC ELECTRICAL CHARACTERISTICS
Symbol
Characteristic
Condition
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
2.7 V ≤ VCC ≤ 3.6 V
2.3 V ≤ VCC ≤ 2.7 V
2.7 V ≤ VCC ≤ 3.6 V
2.3 V ≤ VCC ≤ 3.6 V; IOH = −100 mA
VCC = 2.3 V; IOH = −8 mA
VCC = 2.7 V; IOH = −12 mA
VOL LOW Level Output Voltage
IOZ
3−State Output Current
VCC = 3.0 V; IOH = −18 mA
VCC = 3.0 V; IOH = −24 mA
2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA
VCC = 2.3 V; IOL = 8 mA
VCC = 2.7 V; IOL = 12 mA
VCC = 3.0 V; IOL = 16 mA
VCC = 3.0 V; IOL = 24 mA
VCC = 3.6 V, VIN = VIH or VIL,
VOUT = 0 to 5.5 V
IOFF Power Off Leakage Current
VCC = 0, VIN = 5.5 V or VOUT = 5.5 V
IIN
Input Leakage Current
VCC = 3.6 V, VIN = 5.5 V or GND
ICC
Quiescent Supply Current
VCC = 3.6 V, VIN = 5.5 V or GND
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.
TA = −40°C to +85°C
Min
Max
1.7
2.0
0.7
0.8
VCC − 0.2
1.8
2.2
2.4
2.2
0.2
0.6
0.4
0.4
0.55
±5
Units
V
V
V
V
mA
10
mA
±5
mA
10
mA
500
mA
AC CHARACTERISTICS tR = tF = 2.5 ns; RL = 500 W
Limits
Symbol
Parameter
Waveform
VCC = 3.3 V ± 0.3 V
CL = 50 pF
Min
Max
TA = −40°C to +85°C
VCC = 2.7 V
CL = 50 pF
Min
Max
VCC = 2.5 V ± 0.2 V
CL = 30 pF
Min
Max
Units
tPLH Propagation Delay
tPHL
In to Zn
1
1.5
6.0
1.5
6.5
1.5
7.2
ns
1.5
6.0
1.5
6.5
1.5
7.2
tPLH Propagation Delay
tPHL
S to Zn
1, 2
1.5
7.0
1.5
8.5
1.5
9.1
ns
1.5
7.0
1.5
8.5
1.5
9.1
tPZH Output Enable Time to
tPZL
High and Low Level
3
1.5
7.0
1.5
8.5
1.5
9.1
ns
1.5
7.0
1.5
8.5
1.5
9.1
tPHZ Output Disable Time from
tPLZ
High and Low Level
3
1.5
5.5
1.5
6.0
1.5
6.6
ns
1.5
5.5
1.5
6.0
1.5
6.6
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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