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PCF2127
Accurate RTC with integrated quartz crystal for industrial applications
Rev. 8 — 19 December 2014
Product data sheet
1. General description
The PCF2127 is a CMOS1 Real Time Clock (RTC) and calendar with an integrated Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz crystal optimized for very high accuracy and very low power consumption. The PCF2127 has 512 bytes of general-purpose static RAM, a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, a timestamp function, and many other features.
For a selection of NXP Real-Time Clocks, see Table 94 on page 89
2.
PCF2127 Datasheet
