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DM74LS107A Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer DM74LS107A
Beschreibung Dual Negative-Edge- Triggered Master-Slave J-K Flip-Flops
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 6 Seiten
DM74LS107A Datasheet, Funktion
June 1989
DM54LS107A DM74LS107A Dual Negative-Edge-
Triggered Master-Slave J-K Flip-Flops with
Clear and Complementary Outputs
General Description
This device contains two independent negative-edge-trig-
gered J-K flip-flops with complementary outputs The J and
K data is processed by the flip-flops on the falling edge of
the clock pulse The clock triggering occurs at a voltage
level and is not directly related to the transition time of the
negative going edge of the clock pulse The data on the J
and K inputs may change while the clock is high or low
without affecting the outputs as long as setup and hold
times are not violated A low logic level on the clear input
will reset the outputs regardless of the logic levels of the
other inputs
Connection Diagram
Dual-In-Line Package
TL F 6367 – 1
Order Number DM54LS107AJ DM54LS107AW DM74LS107AM or DM74LS107AN
See NS Package Number J14A M14A N14A or W14B
Function Table
Inputs
Outputs
CLR CLK J K
Q
Q
L
X
XX
L
H
vH
L L Q0
Q0
H v HL H L
H v LH L H
H v HH
Toggle
H
H
X X Q0
Q0
H e High Logic Level
X e Either Low or High Logic Level
L e Low Logic Level
v e Negative going edge of pulse
Q0 e The output logic level before the indicated input conditions were established
Toggle e Each output changes to the complement of its previous level on each falling edge of the clock pulse
C1995 National Semiconductor Corporation TL F 6367
RRD-B30M105 Printed in U S A






DM74LS107A Datasheet, Funktion
Physical Dimensions inches (millimeters) (Continued)
14-Lead Ceramic Flat Package (W)
Order Number DM54LS107AW
NS Package Number W14B
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SEMICONDUCTOR CORPORATION As used herein
1 Life support devices or systems are devices or
systems which (a) are intended for surgical implant
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failure to perform when properly used in accordance
with instructions for use provided in the labeling can
be reasonably expected to result in a significant injury
to the user
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support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
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