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Teilenummer | CD4043BM |
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Beschreibung | Quad TRI-STATE NOR(NAND) R/S Latches | |
Hersteller | National Semiconductor | |
Logo | ||
Gesamt 6 Seiten February 1988
CD4043BM CD4043BC Quad TRI-STATE
NOR R S Latches
CD4044BM CD4044BC Quad TRI-STATE
NAND R S Latches
General Description
CD4043BM CD4043BC are quad cross-couple TRI-STATE
CMOS NOR latches and CD4044BM CD4044BC are quad
cross-couple TRI-STATE CMOS NAND latches Each latch
has a separate Q output and individual SET and RESET
inputs There is a common TRI-STATE ENABLE input for all
four latches A logic ‘‘1’’ on the ENABLE input connects the
latch states to the Q outputs A logic ‘‘0’’ on the ENABLE
input disconnects the latch states from the Q outputs result-
ing in an open circuit condition on the Q output The
TRI-STATE feature allows common bussing of the outputs
Features
Y Wide supply voltage range
3V to 15V
Y Low power
100 nW (typ )
Y High noise immunity
0 45 VDD (typ )
Y Separate SET and RESET inputs for each latch
Y NOR and NAND configuration
Y TRI-STATE output with common output enable
Applications
Y Multiple bus storage
Y Strobed register
Y Four bits of independent storage with output enable
Y General digital logic
Connection Diagrams
CD4043BM CD4043BC
Dual-In-Line and Flat Packages
CD4044BM CD4044BC
Dual-In-Line and Flat Packages
Top View
Truth Table
TL F 5967 – 3
CD4043BM CD4043BC
SRE
Q
X X 0 OC
0 0 1 NC
101
1
011
0
111
D
CD4044BM CD4044BC
SRE
Q
X X 0 OC
1 1 1 NC
011
1
101
0
0 0 1 DD
Top View
TL F 5967 – 4
Order Number CD4043B or CD4044B
OC TRI-STATE
NC No change
X Don’t care
D Dominated by Se1 input
DD Dominated by Re0 input
C1995 National Semiconductor Corporation TL F 5967
RRD-B30M105 Printed in U S A
Physical Dimensions inches (millimeters) (Continued)
Molded Dual-In-Line Package (N)
Order Number CD4043BMN CD4043BCN CD4044BMN or CD4044BCN
NS Package Number N16E
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION As used herein
1 Life support devices or systems are devices or
systems which (a) are intended for surgical implant
into the body or (b) support or sustain life and whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling can
be reasonably expected to result in a significant injury
to the user
2 A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system or to affect its safety or
effectiveness
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National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications
6 Page | ||
Seiten | Gesamt 6 Seiten | |
PDF Download | [ CD4043BM Schematic.PDF ] |
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