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DM74LS73AN 数据表(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 DM74LS73AN
功能描述  Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

DM74LS73AN 数据表(HTML) 1 Page - National Semiconductor (TI)

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TLF6372
June 1989
DM54LS73ADM74LS73A 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 is allowed to 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 levels of the other
inputs
Connection Diagram
Dual-In-Line Package
TLF6372 – 1
Order Number DM54LS73AJ DM54LS73AW DM74LS73AM or DM74LS73AN
See NS Package Number J14A M14A N14A or W14B
Function Table
Inputs
Outputs
CLR
CLK
J
K
Q
Q
LX
X
X
L
H
H
v
LL
Q0
Q0
H
v
HL
H
L
H
v
LH
L
H
H
v
H
H
Toggle
HH
X
X
Q0
Q0
H e High Logic Level
L e Low Logic Level
X e Either Low or High Logic Level
v e Negative going edge of pulse
Q0 e The output logic level before the indicated input conditions were es-
tablished
Toggle e Each output changes to the complement of its previous level on
each falling edge of the clock pulse
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A


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