SN74LS109AD データシートの表示（PDF） - ON Semiconductor
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SN74LS109AD Datasheet PDF : 8 Pages
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SN74LS109A
Dual JK Positive
Edge-Triggered Flip-Flop
The SN74LS109A consists of two high speed completely
independent transition clocked JK flip-flops. The clocking operation
is independent of rise and fall times of the clock waveform. The JK
design allows operation as a D flip-flop by simply connecting the J and
K pins together.
MODE SELECT – TRUTH TABLE
OPERATING MODE
INPUTS
SD CD
J
OUTPUTS
K
Q
Q
Set
Reset (Clear)
*Undetermined
Load “1” (Set)
Hold
Toggle
Load “0” (Reset)
L
H
X
X
H
L
H
L
X
X
L
H
L
L
X
X
H
H
H
H
h
h
H
L
H
H
l
h
q
q
H
H
h
l
q
q
H
H
l
l
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.
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 LOW to HIGH clock transition.
http://onsemi.com
LOW
POWER
SCHOTTKY
16
1
PLASTIC
N SUFFIX
CASE 648
16
1
SOIC
D SUFFIX
CASE 751B
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min Typ Max Unit
VCC
Supply Voltage
TA
Operating Ambient
Temperature Range
4.75 5.0 5.25
V
0
25
70
°C
IOH
Output Current – High
IOL
Output Current – Low
–0.4 mA
8.0
mA
© Semiconductor Components Industries, LLC, 2001
1
June, 2001 – Rev. 7
16
1
SOEIAJ
M SUFFIX
CASE 966
ORDERING INFORMATION
Device
Package
Shipping
SN74LS109AN
16 Pin DIP 2000 Units/Box
SN74LS109AD
SOIC–16
38 Units/Rail
SN74LS109ADR2 SOIC–16 2500/Tape & Reel
SN74LS109AM
SOEIAJ–16
See Note 1
SN74LS109AMEL SOEIAJ–16 See Note 1
1. For ordering information on the EIAJ version of
the SOIC package, please contact your local
ON Semiconductor representative.
Publication Order Number:
SN74LS109A/D
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