74LS15 データシートの表示（PDF） - Motorola => Freescale
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74LS15 Datasheet PDF : 4 Pages
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SN54 / 74LS15
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
0.7
Guaranteed Input LOW Voltage for
VIL
Input LOW Voltage
74
0.8
V
All Inputs
VIK
IOH
VOL
Input Clamp Diode Voltage
Output HIGH Current
Output LOW Voltage
54, 74
54, 74
74
– 0.65 – 1.5
V
VCC = MIN, IIN = – 18 mA
100
µA VCC = MIN, VOH = MAX
0.25 0.4
0.35 0.5
V
IOL = 4.0 mA
V
IOL = 8.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
IIH
Input HIGH Current
IIL
Input LOW Current
20
µA VCC = MAX, VIN = 2.7 V
0.1
mA VCC = MAX, VIN = 7.0 V
– 0.4 mA VCC = MAX, VIN = 0.4 V
Power Supply Current
ICC
Total, Output HIGH
Total, Output LOW
3.6
mA VCC = MAX
6.6
AC CHARACTERISTICS (TA = 25°C)
Symbol
tPLH
tPHL
Parameter
Turn-Off Delay, Input to Output
Turn-On Delay, Input to Output
Limits
Min Typ Max Unit
20
35
ns
17
35
ns
Test Conditions
VCC = 5.0 V
CL = 15 pF, RL = 2.0 kΩ
FAST AND LS TTL DATA
5-52
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