Datasheet UPD4990AG Equivalent ( PDF )

N.º	Número de pieza	Descripción	Fabricantes	PDF
1	UPD4990AG	SERIAL I/O CALENDAR & CLOCK CMOS LSI DATA SHEET MOS INTEGRATED CIRCUIT µPD4990A SERIAL I/O CALENDAR & CLOCK CMOS LSI The µPD4990A is a CMOS LSI developed to input/output calendar & clock data serially to/from the micro computer. The crystal frequency is 32.768 kHz and the data items included are time, minute, second, year, month,	NEC

UPD499 Datasheet ( Hoja de datos ) - resultados coincidentes

Número de pieza	Descripción	Fabricantes	PDF
UPD4991A	4-BIT PARALLEL I/O CALENDAR CLOCK DATA SHEET MOS INTEGRATED CIRCUIT µPD4991A 4-BIT PARALLEL I/O CALENDAR CLOCK The µPD4991A is a CMOS integrated circuit that has the ability to input/output 4-bit parallel time data and calendar data to/from a microcomputer and includes an alarm function. Its reference oscill	NEC
UPD4991AGS	4-BIT PARALLEL I/O CALENDAR CLOCK DATA SHEET MOS INTEGRATED CIRCUIT µPD4991A 4-BIT PARALLEL I/O CALENDAR CLOCK The µPD4991A is a CMOS integrated circuit that has the ability to input/output 4-bit parallel time data and calendar data to/from a microcomputer and includes an alarm function. Its reference oscill	NEC
UPD4990A	SERIAL I/O CALENDAR & CLOCK CMOS LSI DATA SHEET MOS INTEGRATED CIRCUIT µPD4990A SERIAL I/O CALENDAR & CLOCK CMOS LSI The µPD4990A is a CMOS LSI developed to input/output calendar & clock data serially to/from the micro computer. The crystal frequency is 32.768 kHz and the data items included are time, minute, s	NEC

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Número de pieza	Descripción	Fabricantes	PDF
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