QUAD 2-INPUT NOR BUFFER
SN54/74LS28
VCC 14 13 12 11 10
9
8
QUAD 2-INPUT NOR BUFFER LOW POWER SCHOTTKY
1234567 GND
...
QUAD 2-INPUT NOR BUFFER
SN54/74LS28
VCC 14 13 12 11 10
9
8
QUAD 2-INPUT NOR BUFFER LOW POWER SCHOTTKY
1234567 GND
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply
Voltage
TA Operating Ambient Temperature Range
IOH Output Current — High IOL Output Current — Low
14 1
J SUFFIX CERAMIC CASE 632-08
14 1
N SUFFIX PLASTIC CASE 646-06
14 1
D SUFFIX SOIC
CASE 751A-02
ORDERING INFORMATION
SN54LSXXJ SN74LSXXN SN74LSXXD
Ceramic Plastic SOIC
Min Typ Max Unit
54 4.5 5.0 5.5 74 4.75 5.0 5.25
V
54 – 55 25 125 °C 74 0 25 70
54, 74
– 1.2
mA
54 12 mA 74 24
FAST AND LS TTL DATA 5-75
SN54 / 74LS28
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 VOH
Input Clamp Diode
Voltage Output HIGH
Voltage
– 0....
