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PCF2123 数据表(PDF) 3 Page - NXP Semiconductors |
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PCF2123 数据表(HTML) 3 Page - NXP Semiconductors |
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3 / 86 page  NXP Semiconductors PCA2131 Nano-power highly accurate RTC with integrated quartz crystal for automotive applications 5 Block diagram aaa-041562 TEMP VDD BBS VBAT VSS internal operating voltage Voper(int) CLKOUT RPU 1/2/3/4 INTA / INTB OSCI OSCO TEMP 100 Hz 32.768 kHz TCXO BATTERY BACK UP SWITCH-OVER CIRCUITRY OSCILLATOR MONITOR 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 0Bh 0Ch 0Dh Weekday_alarm 0Eh CLKOUT_ctl 0Fh Hour_alarm 10h Day_alarm 11h Timestp_ctl 1/2/3/4 12h Sec_timestp 1/2/3/4 13h Min_timestp 1/2/3/4 14h/1Bh/22h/29h Hour_timestp 1/2/3/4 15h/1Ch/23h/2Ah Day_timestp 1/2/3/4 16h/1Dh/24h/2Bh Mon_timestp 1/2/3/4 17h/1Eh/25h/2Ch Year_timestp 1/2/3/4 18h/1Fh/26h/2Dh Aging_offset 19h/20h/27h/2Eh 1Ah/21h/28h/2Fh 30h TS1 PCA2131 SCL SDI SDO SERIAL BUS INTERFACE SELECTOR SPI-BUS INTERFACE I2C-BUS INTERFACE SDA/CE IFS TS2 TS3 TS4 DIVIDER 31h/32h 33h/34h 35h 36h INT_A_MASK 1/2 INT_B_MASK 1/2 Watchdg_tim_ctl Watchdg_tim_val Minute_alarm Control_4 Control_5 Sofware Reset 1/100thSeconds Figure 1. Block diagram of PCA2131 PCA2131 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 1.0 — 26 July 2021 3 / 86 |
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