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5474 Datasheet

  • 5474

  • Dual Positive-Edge-Triggered D Flip-Flops with Preset, Clear...

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  • NSC

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5474 DM5474 DM7474 Dual Positive-Edge-Triggered D Flip-Flops
with Preset Clear and Complementary Outputs
June 1989
5474 DM5474 DM7474
Dual Positive-Edge-Triggered D Flip-Flops
with Preset Clear and Complementary Outputs
General Description
This device contains two independent positive-edge-trig-
gered D flip-flops with complementary outputs The informa-
tion on the D input is accepted by the flip-flops on the posi-
tive going edge of the clock pulse The triggering occurs at a
voltage level and is not directly related to the transition time
of the rising edge of the clock The data on the D input may
be changed while the clock is low or high without affecting
the outputs as long as the data 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
Features
Y
Alternate Military Aerospace device (5474) is available
Contact a National Semiconductor Sales Office Distrib-
utor for specifications
Connection Diagram
Dual-In-Line Package
TL F 6526 鈥?1
Order Number 5474DMQB 5474FMQB DM5474J DM5474W DM7474M or DM7474N
See NS Package Number J14A M14A N14A or W14B
Function Table
Inputs
PR
L
H
L
H
H
H
CLR
H
L
L
H
H
H
CLK
X
X
X
D
X
X
X
H
L
X
Outputs
Q
H
L
H
H
L
Q
0
Q
L
H
H
L
H
Q
0
u
u
L
H
e
High Logic Level
X
e
Either Low or High Logic Level
L
e
Low Logic Level
e
Positive-going transition of the clock
e
This configuration is nonstable that is it will not persist when either the preset and or clear
inputs return to their inactive (high) level
Q
0
e
The output logic level of Q before the indicated input conditions were established
u
C
1995 National Semiconductor Corporation
TL F 6526
RRD-B30M105 Printed in U S A

5474 產(chǎn)品屬性

  • 54現(xiàn)貨

  • 1 : ￥87.05000散裝

  • -

  • 散裝

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  • 適配器

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