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54175DMQB Datasheet

  • 54175DMQB

  • Hex/Quad D Flip-Flops with Clear

  • 8頁(yè)

  • NSC

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54174 DM54174 DM74174 54175 DM54175 DM74175 Hex Quad D Flip-Flops with Clear
June 1989
54174 DM54174 DM74174 54175 DM54175 DM74175
Hex Quad D Flip-Flops with Clear
General Description
These positive-edge triggered flip-flops utilize TTL circuitry
to implement D-type flip-flop logic All have a direct clear
input and the quad (175) version features complementary
outputs from each flip-flop
Information at the D inputs meeting the setup and hold time
requirements is transferred to the Q outputs on the positive-
going edge of the clock pulse Clock triggering occurs at a
particular voltage level and is not directly related to the tran-
sition time of the positive-going pulse When the clock input
is at either the high or low level the D input signal has no
effect at the output
Features
Y
Y
Y
Y
Y
Y
Y
Y
174 contains six flip-flops with single-rail outputs
175 contains four flip-flops with double-rail outputs
Buffered clock and direct clear inputs
Individual data input to each flip-flop
Applications include
Buffer storage registers
Shift registers
Pattern generators
Typical clock frequency 40 MHz
Typical power dissipation per flip-flop 38 mW
Alternate Military Aerospace device (54174 54175) is
available Contact a National Semiconductor Sales Of-
fice Distributor for specifications
Connection Diagrams
Dual-In-Line Package
Dual-In-Line Package
TL F 6557 鈥?1
TL F 6557 鈥?2
Order Number 54174DMQB 54174FMQB DM54174J
DM54174W or DM74174N
See NS Package Number J16A N16E or W16A
Order Number 54175DMQB 54175FMQB DM54175J
DM54175W or DM74175N
See NS Package Number J16A N16E or W16A
Function Table
(Each Flip-Flop)
Inputs
Clear
L
H
H
H
Clock
X
D
X
H
L
X
Q
L
H
L
Q
0
Outputs
Q
H
L
H
Q
0
u
u
L
H
e
High Level (steady state)
L
e
Low Level (steady state)
X
e
Don鈥檛 Care
u
e
Transition from low to high level
Q
0
e
The level of Q before the indicated steady-state input conditions were established
e
175 only
C
1995 National Semiconductor Corporation
TL F 6557
RRD-B30M105 Printed in U S A

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