DM74ALS253 ,TRI-STATE Dual 1 of 4 Line Data Selector/Multiplexerfeatures to ensure that select input changes do not causeinvalid output transients.ConnectionDiagra ..
DM74ALS253M ,3-STATE Dual 1 of 4 Line Data Selector/MultiplexerFeaturesThis Data Selector/Multiplexer contains full on-chip decod- ■ Advanced oxide-isolated, ion- ..
DM74ALS253MX ,3-STATE Dual 1 of 4 Line Data Selector/MultiplexerDM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/MultiplexerApril 1984Revised February 2000DM74ALS ..
DM74ALS253N ,3-STATE Dual 1 of 4 Line Data Selector/Multiplexerfeatures to ensure that select input changes do not causeinvalid output transients. Ordering Code:O ..
DM74ALS253N ,3-STATE Dual 1 of 4 Line Data Selector/Multiplexerfeatures to ensure that select input changes do not causeinvalid output transients. Ordering Code:O ..
DM74ALS253N ,3-STATE Dual 1 of 4 Line Data Selector/MultiplexerFeaturesThis Data Selector/Multiplexer contains full on-chip decod- ■ Advanced oxide-isolated, ion- ..
DS1830AS ,Reset Sequence PushbuttonFEATURES 5V (DS1830) or 3.3V (DS1830A) power-onPIN ASSIGNMENTreset Excellent for systems that nee ..
DS1831AS ,Multisupply MicroMonitor™FEATURESPIN ASSIGNMENT 5V power-on resetDS1831 3.3V power-on reset Two referenced comparators wi ..
DS1831BS ,Multisupply MicroMonitor™DS1831/A/BMultisupply Micromonitor
DS1831C ,3.3V/2.5V Multisupply MicromonitorFEATURESPIN ASSIGNMENT 2.5V power-on resetDS1831C 3.3V power-on reset Two referenced comparators ..
DS1831CS , 3.3V/2.5V Multi-Supply MicroMonitor
DS1831S ,Multisupply MicroMonitor™PIN DESCRIPTIONIN 5V Power Supply Input MPBRST Master Pushbutton (DS1831)5VTD Watchdog Time Delay S ..
DM74ALS253
TRI-STATE Dual 1 of 4 Line Data Selector/Multiplexer
TL/F/6215
DM74ALS253
TRI-STATE
Dual
Line
Data
Selector/Multiplexer
August 1995
DM74ALS253 TRI-STATEÉ Dual1 of4 Line
Data Selector/Multiplexer
General Description
This Data Selector/Multiplexer containsfull on-chip decod-
ingto selectone-of-four data sourcesasa resultofa unique
two-bit binary codeatthe Select Inputs. Eachofthetwo
Data Selector/Multiplexer circuits have their own separate
Data and Output Control inputs anda non-inverting TRI-
STATE output buffer. The Output Control inputs, whenat
the high level, placethe corresponding outputinthe high
impedanceOff state.In orderto preventbus access con-
flicts, output disable timesare shorter than output enable
times.The Select input buffers incorporate internal overlap
featuresto ensure that select input changesdonot cause
invalid output transients.
Features Advanced oxide-isolated, ion-implanted Schottky TTL
process Switching performanceis guaranteed overfull tempera-
ture and VCC supply rangePin and functional compatible withLS family counter-
part Improved output transient handling capability Output control circuitry incorporates power-up TRI-
STATE feature
Connection Diagram
Dual-In-Line Package
TL/F/6215–1
OrderNumber DM74ALS253Mor DM74ALS253N
SeeNS Package Number M16AorN16A
Function Table
Select Data Inputs Output OutputInputs Control A C0 C1 C2 C3 G Y X XXXX H Z L X X X L L H X X X L H H XLX X L L H XHX X L H X X L X L L X X H X L H H XXX L L L H XXX H L H
Addressinputs AandB arecommontoboth sectionseHigh Level,Le LowLevel,Xe Don’t Care,ZeHigh Impedance
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
C1995National SemiconductorCorporation RRD-B30M115/PrintedinU.S.A.
