UPD4991ACX

4-BIT PARALLEL I/O CALENDAR CLOCK

[NEC] SEMICONDUCTORSELECTIONGUIDE

UPD4991ACX

MOS INTEGRATED CIRCUIT

FEATURES: •Time(hour,minute,andsecond)andcalendar(leapyear,year,month,day,anddate)counters •Leapyearcanbeautomaticallyidentifiedorset •12-and24-hourmodesselectable •4-bitparallelinput/outputinBCDdataformat •Alarmfunction(hour,minute,second,month,day,

4991

Tapesprovidetheconvenienceandsimplicityofatapefastenerandareidealforuseinmanyinteriorandexteriorbondingapplications.Inmanysituations,theycanreplacerivets

4991A

3-VOLT,0.5-MICRONCELL-BASEDCMOSASIC

4991B

Tapesprovidetheconvenienceandsimplicityofatapefastenerandareidealforuseinmanyinteriorandexteriorbondingapplications.Inmanysituations,theycanreplacerivets

AORN4991ATF

Molded,50milPitch,Dual-In-LineThinFilmResistor,PrecisionAutomotive,AEC-Q200Qualified,Networks

FEATURES •Moistureresistanttantalumnitrideresistivefilm (MILSTD202,method106) •Standard8pincount(0.150narrowbody) JEDEC®MS-012 •Ruggedmoldedcaseconstruction •Excellentlongtermratiostability (ΔR±0.015) •LowTCRtracking±5ppm/°C •Passessulfurresistancet

AORN4991ATS

Molded,50milPitch,Dual-In-LineThinFilmResistor,PrecisionAutomotive,AEC-Q200Qualified,Networks

FEATURES •Moistureresistanttantalumnitrideresistivefilm (MILSTD202,method106) •Standard8pincount(0.150narrowbody) JEDEC®MS-012 •Ruggedmoldedcaseconstruction •Excellentlongtermratiostability (ΔR±0.015) •LowTCRtracking±5ppm/°C •Passessulfurresistancet

AORN4991AUF

Molded,50milPitch,Dual-In-LineThinFilmResistor,PrecisionAutomotive,AEC-Q200Qualified,Networks

FEATURES •Moistureresistanttantalumnitrideresistivefilm (MILSTD202,method106) •Standard8pincount(0.150narrowbody) JEDEC®MS-012 •Ruggedmoldedcaseconstruction •Excellentlongtermratiostability (ΔR±0.015) •LowTCRtracking±5ppm/°C •Passessulfurresistancet

AORN4991BTF

Molded,50milPitch,Dual-In-LineThinFilmResistor,PrecisionAutomotive,AEC-Q200Qualified,Networks

FEATURES •Moistureresistanttantalumnitrideresistivefilm (MILSTD202,method106) •Standard8pincount(0.150narrowbody) JEDEC®MS-012 •Ruggedmoldedcaseconstruction •Excellentlongtermratiostability (ΔR±0.015) •LowTCRtracking±5ppm/°C •Passessulfurresistancet

AORN4991BTS

Molded,50milPitch,Dual-In-LineThinFilmResistor,PrecisionAutomotive,AEC-Q200Qualified,Networks

FEATURES •Moistureresistanttantalumnitrideresistivefilm (MILSTD202,method106) •Standard8pincount(0.150narrowbody) JEDEC®MS-012 •Ruggedmoldedcaseconstruction •Excellentlongtermratiostability (ΔR±0.015) •LowTCRtracking±5ppm/°C •Passessulfurresistancet