SN74LS279D Motorola, SN74LS279D Datasheet - Page 2

• Manufacturer Part Number: SN74LS279D
• Description: QUAD SET-RESET LATCH
• Manufacturer: Motorola

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 IL per Truth Table
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
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
per Truth Table