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,

UPD4991AGS

MOSINTEGRATEDCIRCUIT

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,

UPD4991AGS

4-BITPARALLELI/OCALENDARCLOCK

[NEC] SEMICONDUCTORSELECTIONGUIDE

WM4991

1.57mm(.062)Diameter,Standard.062PinandSocketCrimpTerminal,Female,withTin(Sn)PlatedBrassContact,18-24AWG,Reel

WM4991-ND

1.57mm(.062)Diameter,Standard.062PinandSocketCrimpTerminal,Female,withTin(Sn)PlatedBrassContact,18-24AWG,Reel

XRK4991

3.3VHIGH-SPEED(85MHZ)PROGRAMMABLESKEWCLOCKBUFFER

XRK4991A

3.3VHIGH-SPEED(85MHZ)PROGRAMMABLESKEWCLOCKBUFFER