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PCF2123TS Datasheet(PDF) 3 Page - NXP Semiconductors |
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PCF2123TS Datasheet(HTML) 3 Page - NXP Semiconductors |
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3 / 55 page  PCF2123_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 4 December 2009 3 of 55 NXP Semiconductors PCF2123 SPI Real time clock/calendar 6. Block diagram Fig 1. Block diagram of PCF2123 013aaa223 PCF2123 OSCILLATOR 32.768 kHz DIVIDER CLOCK OUT INTERRUPT CLKOUT CLKOE INT OFFSET FUNCTION Offset_register 0Dh MONITOR POWER ON RESET WATCH DOG SPI INTERFACE OSCI CE SCL SDI SDO OSCO VDD TEST VSS TIMER FUNCTION Timer_clkout 0Eh Countdown_timer 0Fh CONTROL Control_1 00h Control_2 01h TIME Seconds 02h Minutes 03h Hours 04h Days 05h ALARM FUNCTION Minute_alarm 09h Hour_alarm 0Ah Day_alarm 0Bh Weekday_alarm 0Ch Weekdays 06h Months 07h Years 08h COSCI COSCO Rpd |
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