M54HC279 ST Microelectronics, M54HC279 Datasheet - Page 2

• Manufacturer Part Number: M54HC279
• Description: QUAD S - R LATCH
• Manufacturer: ST Microelectronics

M54/M74HC279
PIN DESCRIPTION
TRUTH TABLE
NOTE: Q0 = THE LEVEL OF Q BEFORE THE INDICRTED INPUT
CONDITION WAS ESTABLISHED.
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.
(*) 500 mW: 65
2/10
1, 5, 10. 14
I
2, 3, 6, 11,
4, 7, 9, 13
CC
Symbol
PIN No
12, 15
V
T
I
or I
V
P
V
I
T
I
16
OK
CC
IK
O
stg
8
O
D
L
I
#
S #
GND
H
H
L
L
FOR LATCHES WITH DOUBLE S INPUT:
H = BOTH S INPUTS HIGH
L = ONE OF BOTH INPUTS LOW
o
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Source Sink Current Per Output Pin
DC V
Power Dissipation
Storage Temperature
Lead Temperature (10 sec)
1S1, 1S2, 2S,
3S1, 3S2, 4S
C derate to 300 mW by 10mW/
SYMBOL
1Q to 4Q
1R to 4R
GND
V
CC
CC
or Ground Current
R
H
H
L
L
Reset Inputs (Active LOW)
Set Inputs (Active LOW)
Outputs
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
Parameter
o
C: 65
Q0
o
Q
H
H
C to 85
L
o
C
IEC LOGIC SYMBOL
-0.5 to V
-0.5 to V
-65 to +150
-0.5 to +7
500 (*)
Value
300
20
20
25
50
CC
CC
+ 0.5
+ 0.5
Unit
mW
mA
mA
mA
mA
o
o
V
V
V
C
C