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PDF 5474 Data sheet ( Hoja de datos )
| Número de pieza | 5474 | |
| Descripción | Dual Positive-Edge-Triggered D Flip-Flops with Preset/ Clear and Complementary Outputs | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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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 – 1
Order Number 5474DMQB 5474FMQB DM5474J DM5474W DM7474M or DM7474N
See NS Package Number J14A M14A N14A or W14B
Function Table
Inputs
Outputs
PR CLR CLK D
Q
Q
LH
X XH L
HL
X XL H
LL
X
XH
H
H H u HH L
H H u LL H
HH
L X Q0 Q0
H e High Logic Level
X e Either Low or High Logic Level
L e Low Logic Level
u 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
Q0 e The output logic level of Q before the indicated input conditions were established
C1995 National Semiconductor Corporation TL F 6526
RRD-B30M105 Printed in U S A
1 page  
Physical Dimensions inches (millimeters) (Continued)
14-Lead Small Outline Molded Package (M)
Order Number DM7474M
NS Package Number M14A
14-Lead Molded Dual-In-Line Package (N)
Order Number DM7474N
NS Package Number N14A
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet 5474.PDF ] | |
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