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UPD4990A

MOSINTEGRATEDCIRCUIT

FEATURES •Built-incountersfortime(hour,minute,andsecond)anddate(year,month,day,andweek) •Leapyearsareadjustedautomatically. •DataisrepresentedinBCDnotation(exceptmonthsinhexadecimalnotation)andinput/outputserially. •Commandscanbesetbyinputtingserialdat

RENESASRenesas Technology Corp

瑞萨瑞萨科技有限公司

UPD4990A

SERIALI/OCALENDAR&CLOCKCMOSLSI

SEMICONDUCTORSELECTIONGUIDE Microcomputer ICMemory Semi-CustomIC ParticularPurposeIC GeneralPurposeLinearIC Transistor/Diode/Thyristor MicrowaveDevice/ConsumerUseHighFrequencyDevice OpticalDevice Packages Index(QuickReferencebyTypeN

NECRenesas Electronics America

瑞萨日本瑞萨电子株式会社

UPD4990AC

SERIALI/OCALENDAR&CLOCKCMOSLSI

SEMICONDUCTORSELECTIONGUIDE Microcomputer ICMemory Semi-CustomIC ParticularPurposeIC GeneralPurposeLinearIC Transistor/Diode/Thyristor MicrowaveDevice/ConsumerUseHighFrequencyDevice OpticalDevice Packages Index(QuickReferencebyTypeN

NECRenesas Electronics America

瑞萨日本瑞萨电子株式会社

UPD4990AC

MOSINTEGRATEDCIRCUIT

FEATURES •Built-incountersfortime(hour,minute,andsecond)anddate(year,month,day,andweek) •Leapyearsareadjustedautomatically. •DataisrepresentedinBCDnotation(exceptmonthsinhexadecimalnotation)andinput/outputserially. •Commandscanbesetbyinputtingserialdat

RENESASRenesas Technology Corp

瑞萨瑞萨科技有限公司

UPD4990AG

MOSINTEGRATEDCIRCUIT

FEATURES •Built-incountersfortime(hour,minute,andsecond)anddate(year,month,day,andweek) •Leapyearsareadjustedautomatically. •DataisrepresentedinBCDnotation(exceptmonthsinhexadecimalnotation)andinput/outputserially. •Commandscanbesetbyinputtingserialdat

RENESASRenesas Technology Corp

瑞萨瑞萨科技有限公司

UPD4990AG

SERIALI/OCALENDAR&CLOCKCMOSLSI

SEMICONDUCTORSELECTIONGUIDE Microcomputer ICMemory Semi-CustomIC ParticularPurposeIC GeneralPurposeLinearIC Transistor/Diode/Thyristor MicrowaveDevice/ConsumerUseHighFrequencyDevice OpticalDevice Packages Index(QuickReferencebyTypeN

NECRenesas Electronics America

瑞萨日本瑞萨电子株式会社

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