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PCF2127A Datasheet(PDF) 3 Page - NXP Semiconductors |
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PCF2127A Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 80 page PCF2127A_2 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 02 — 7 May 2010 3 of 80 NXP Semiconductors PCF2127A Integrated RTC, TCXO and quartz crystal 6. Block diagram Fig 1. Block diagram of PCF2127A 001aaj675 TEST PFO SCL SCL SDO TEMP 1.25 V (internal) SDI VDD BBS VBAT VSS internal power supply RST SDI SDO CLKOUT INT OSCI OSCO TEMP 1 Hz 32.768 kHz TCXO BATTERY BACK UP SWITCH-OVER CIRCUITRY OSCILLATOR MONITOR SERIAL BUS INTERFACE SELECTOR SPI-BUS INTERFACE I2C-BUS INTERFACE 512 BYTES STATIC RAM TEMPERATURE SENSOR RESET LOGIC CONTROL DIVIDER AND TIMER ADDRESS REGISTER Control_1 Control_2 Control_3 00h 01h 02h Seconds 03h Minutes 04h Hours 05h Days 06h Weekdays 07h Months 08h Years 09h Second_alarm 0Ah Minute_alarm 0Bh Hour_alarm 0Ch Day_alarm 0Dh Weekday_alarm 0Eh CLKOUT_ctl 0Fh Watchdg_tim_ctl 10h Watchdg_tim_val 11h Timestp_ctl 12h Sec_timestp 13h Min_timestp 14h Hour_timestp 15h Day_timestp 16h Mon_timestp 17h Year_timestp 18h Aging_offset 19h RAM_addr_MSB 1Ah RAM_addr_LSB 1Bh RAM_wrt_cmd 1Ch RAM_rd_cmd 1Dh SDA/CE IFS PFI TS SDA/CE PCF2127A RPU |
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Similar Description - PCF2127A |
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