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Número de pieza | 74LS112A | |
Descripción | Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flop | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de 74LS112A (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
No Preview Available ! August 1986
Revised March 2000
DM74LS112A
Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flop
with Preset, 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-flop 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
falling edge of the clock pulse. Data on the J and K inputs
may be changed while the clock is HIGH or LOW without
affecting the outputs as long as the setup and hold times
are not violated. A low logic level on the preset or clear
inputs will set or reset the outputs regardless of the logic
levels of the other inputs.
Ordering Code:
Order Number Package Number
Package Description
DM74KS112AM
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74LS112AN
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Inputs
Outputs
PR CLR CLK J K
Q
Q
LHXXX
H
L
HL XXX
L
H
L L X X X H (Note 1) H (Note 1)
HH↓ L L
HH ↓ H L
Q0
H
Q0
L
HH↓ LH
L
H
HH ↓ HH
Toggle
HHHX X
Q0
Q0
H = HIGH Logic Level
L = LOW Logic Level
X = Either LOW or HIGH Logic Level
↓ = Negative Going Edge of Pulse
Q0 = The output logic level before the indicated input conditions were
established.
Toggle = Each output changes to the complement of its previous level on
each falling edge of the clock pulse.
Note 1: This configuration is nonstable; that is, it will not persist when
preset and/or clear inputs return to their inactive (HIGH) level.
© 2000 Fairchild Semiconductor Corporation DS006382
www.fairchildsemi.com
1 page Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N16E
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
5 www.fairchildsemi.com
5 Page |
Páginas | Total 5 Páginas | |
PDF Descargar | [ Datasheet 74LS112A.PDF ] |
Número de pieza | Descripción | Fabricantes |
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74LS112A | Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flop | Fairchild Semiconductor |
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