SN74LS279N ON Semiconductor, SN74LS279N Datasheet - Page 2

• Manufacturer Part Number: SN74LS279N
• Manufacturer: ON Semiconductor

Specifications of SN74LS279N

• Logic Family: LS
• Lead Free Status / Rohs Status: Supplier Unconfirmed

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
* Add 0.6 ns to spec limit for each 1.0 ns input rise time less than 15 ns.
V IH
V IL
V IL
V IK
V OH
V OH
V OL
V OL
I IH
I IH
I IL
I OS
I CC
t PLH
t PHL
t PHL
Symbol
Symbol
Symbol
Symbol
Input HIGH Voltage
Input LOW Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
Output HIGH Voltage
Output LOW Voltage
Output LOW Voltage
Input HIGH Current
Input HIGH Current
Input LOW Current
Short Circuit Current (Note 1)
Power Supply Current
Propagation Delay, S to Output
Propagation Delay, R to Output
(T A = 25 C)
Parameter
Parameter
Parameter
Parameter
54, 74
54
74
54
74
74
FAST AND LS TTL DATA
SN54/74LS279
– 20
Min
2.0
2.5
2.7
Min
Limits
– 0.65
Limits
5-453
0.25
0.35
Typ
3.5
3.5
Typ
– 100
– 1.5
– 0.4
Max
Max
*21*
0.7
0.8
0.4
0.5
0.1
7.0
20
22
27
(unless otherwise specified)
Unit
Unit
Unit
Unit
mA
mA
mA
mA
ns
ns
V
V
V
V
V
V
V
V
A
Guaranteed Input HIGH Voltage for
All Inputs
Guaranteed Input LOW Voltage for
Guaranteed Input LOW Voltage for
All Inputs
All Inputs
V CC = MIN, I IN = – 18 mA
V CC = MIN, I OH = MAX, V IN = V IH
V CC = MIN, I OH = MAX, V IN = V IH
or V
or V IL per Truth Table
I OL = 4.0 mA
I OL = 8.0 mA
V CC = MAX, V IN = 2.7 V
V CC = MAX, V IN = 7.0 V
V CC = MAX, V IN = 0.4 V
V CC = MAX
V CC = MAX
per Truth Table
Test Conditions
Test Conditions
Test Conditions
Test Conditions
V CC = 5.0 V
C L = 15 pF
C L = 15 pF
V CC = V CC MIN,
V IN = V IL or V IH
V IN = V IL or V IH
per Truth Table