74LS68 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
74LS68 Datasheet PDF : 6 Pages
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SN54/74LS682 • SN54/74LS684 • SN54/74LS688
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA
Operating Ambient Temperature Range
IOH
Output Current — High
IOL
Output Current — Low
Min
Typ
Max
Unit
54
4.5
5.0
5.5
V
74
4.75
5.0
5.25
54
– 55
25
125
°C
74
0
25
70
54, 74
–0.4
mA
54
12
mA
74
24
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
Guaranteed Input HIGH Voltage for
V 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
2.5
3.5
2.7
3.5
V VCC = MIN, IIN = – 18 mA
V VCC = MIN, IOH = MAX, VIN = VIH
V or VIL per Truth Table
VOL
IIH
IIL
Output LOW Voltage
54, 74
74
Input HIGH Current
Input LOW Current
LS628-Q Inputs
Others
LS682-Q Inputs
Others
0.25 0.4
0.35 0.5
20
0.1
0.1
– 0.4
– 0.2
V IOL = 12 mA
V IOL = 24 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
µA VCC = MAX, VIN = 2.7 V
mA VCC = MAX, VIN = 5.5 V
mA VCC = MAX, VIN = 7.0 V
mA
VCC = MAX, VIN = 0.4 V
mA
IOS
Short Circuit Current (Note 1)
– 30
– 130
LS682
70
Power Supply
ICC
Current
LS684
65
LS688
65
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
mA VCC = MAX
mA
mA VCC = MAX
mA
FAST AND LS TTL DATA
5-604
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