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UM10301
User Manual for NXP Real Time Clocks PCF85x3, PCF85x63,
PCA8565, PCF2123, and PCA21125
Rev. 2.1 — 23 July 2015
User manual
Document information
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Content
Keywords
PCF8563, PCF8583, PCF8593, PCA8565, PCF85263, PCF85363,
PCF85063, PCF2123, PCA21125, PCF2120, RTC, real time clock,
timekeeping, crystal, 32.768 kHz, backup.
Abstract
This user manual aims to assist a user of above mentioned Real Time
Clocks in achieving successful design-in and application. It contains
useful hints with respect to electrical schematic and PCB layout as well
as code examples for the well-established NXP PCF8563 and related
Real Time Clocks. Also the more recent Real Time Clocks PCF2123 and
PCA21125 have been taken into account.
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