User`s guide

48 | P a g e
X
X
X
h
l
H
L
H
H
L
L
H
H
L
H
* Both outputs will be HIGH while both SD and CD are LOW, but the output
states are unpredictable if SD and CD go HIGH simultaneously. If the levels
at the set and clear are near VIL maximum then we cannot guarantee to meet
the minimum level for VOH.
H, h = HIGH Voltage Level
L, I = LOW Voltage Level
X = Don’t Care
l, h (q) = Lower case letters indicate the state of the referenced input
i, h (q) = (or output) one set-up time prior to the HIGH to LOW clock transition.
GUARANTEED OPERATING RANGES
Symbol Parameter Min Typ Max Unit
VCC Supply Voltage 4.75 5.0 5.25 V
TA Operating Ambient
Temperature Range
0 25 70 C
IOH Output Current – High –0.4 mA
IOL Output Current – Low 8.0 mA
LOW
POWER
SCHOTTKY
Device Package Shipping
ORDERING INFORMATION
SN74LS74AN 14 Pin DIP 2000 Units/Box
SN74LS74AD 14 Pin
SOIC
D SUFFIX
CASE 751A
http://onsemi.com
2500/Tape & Reel
PLASTIC
N SUFFIX
CASE 646
14
1
14
1
SN74LS74A
http://onsemi.com
2
LOGIC DIAGRAM (Each Flip-Flop)
LOGIC SYMBOL
SET (SD)
4 (10)
CLEAR (CD)
1 (13)
CLOCK
3 (11)
D
2 (12)
Q
5 (9)
Q
6 (8)