SN74LS125D データシートの表示（PDF） - Motorola => Freescale
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SN74LS125D Datasheet PDF : 5 Pages
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SN54/74LS125A • SN54/74LS126A
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
54
VIL
Input LOW Voltage
74
0.7
Guaranteed Input LOW Voltage for
0.8
V
All Inputs
VIK
VOH
Input Clamp Diode Voltage
54
Output HIGH Voltage
74
– 0.65
– 1.5
2.4
2.4
V
VCC = MIN, IIN = – 18 mA
V
VCC = MIN, IOH = MAX, VIN = VIH
V
or VIL per Truth Table
VOL
Output LOW Voltage
54, 74
74
0.25
0.4
0.35
0.5
V
IOL = 12 mA VCC = VCC MIN,
VIN = VIL or VIH
V
IOL = 24 mA per Truth Table
IOZH
Output Off Current HIGH
20
IOZL
Output Off Current LOW
– 20
20
IIH
Input HIGH Current
0.1
IIL
Input LOW Current
IOS
Short Circuit Current (Note 1)
– 40
LS125A
ICC
Power Supply Current
LS126A
– 0.4
–225
20
22
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
µA
VCC = MAX, VOUT = 2.4 V
µA
VCC = MAX, VOUT = 0.4 V
µA
VCC = MAX, VIN = 2.7 V
mA
VCC = MAX, VIN = 7.0 V
mA
VCC = MAX, VIN = 0.4 V
mA
VCC = MAX
VIN = 0 V, VE = 4.5 V
mA
VCC = MAX
VIN = 0 V, VE = 0 V
AC CHARACTERISTICS (TA = 25°C)
Limits
Symbol
Parameter
Min
Typ
Max
tPLH
tPLH
tPHL
tPHL
tPZH
Propagation Delay,
Data to Output
Output Enable Time
to HIGH Level
LS125A
LS126A
LS125A
LS126A
LS125A
LS126A
9.0
15
9.0
15
7.0
18
8.0
18
12
20
16
25
tPZL
Output Enable Time
to LOW Level
LS125A
LS126A
15
25
21
35
Output Disable Time
LS125A
20
tPHZ
from HIGH Level
LS126A
25
Output Disable Time
LS125A
20
tPLZ
from LOW Level
LS126A
25
Unit
Test Conditions
ns
Figure 2
ns
Figures 4, 5
ns
Figures 3, 5
ns
Figures 4, 5
ns
FIgures 3, 5
VCC = 5.0 V
CL = 45 pF
RL = 667 Ω
VCC = 5.0 V
CL = 5.0 pF
RL = 667 Ω
FAST AND LS TTL DATA
5-208
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