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MM54HC76 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. MM54HC76
Description  Dual J-K Flip-Flops with Preset and Clear
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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MM54HC76 Datasheet(HTML) 1 Page - National Semiconductor (TI)

   
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TLF5074
January 1988
MM54HC76MM74HC76 Dual J-K Flip-Flops
with Preset and Clear
General Description
These high speed (30 MHz minimum) J-K Flip-Flops utilize
advanced silicon-gate CMOS technology to achieve the low
power consumption and high noise immunity of standard
CMOS integrated circuits along with the ability to drive 10
LS-TTL loads
Each flip-flop has independent J K PRESET CLEAR and
CLOCK inputs and Q and Q outputs These devices are
edge sensitive to the clock input and change state on the
negative going transition of the clock pulse Clear and pre-
set are independent of the clock and accomplished by a low
logic level on the corresponding input
The 54HC74HC logic family is functionally as well as pin-
out compatible with the standard 54LS74LS logic family
All inputs are protected from damage due to static dis-
charge by internal diode clamps to VCC and ground
Features
Y
Typical propagation delay 16 ns
Y
Wide operating voltage range
Y
Low input current 1 mA maximum
Y
Low quiescent current 40 mA maximum (74HC Series)
Y
High output drive 10 LS-TTL loads
Connection and Logic Diagrams
Dual-In-Line Package
TLF5074 – 1
Top View
Order Number MM54HC76 or MM74HC76
Truth Table
Inputs
Outputs
PR
CLR
CLK
J
L
Q
Q
LH
X
X
X
H
L
HL
X
X
X
L
H
LL
X
X
X
L
L
HH
v
L
L
Q0
Q0
HH
v
HL
H
L
HH
v
LH
L
H
HH
v
H
H
TOGGLE
HH
H
X
X
Q0
Q0
This is an unstable condition and is not guaranteed
TLF5074 – 2
(1 of 2)
TLF5074 – 3
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A


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