PCA2129 - NXP

PCA2129 Automotive accurate RTC

The PCA2129 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 PCA2129 has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, a timest.

Features

• UL Recognized Component (PCA2129T/Q900/2 )
• AEC-Q100 compliant for automotive applications
• Operating temperature range from -40 °C to +85 °C
• Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors
• Typical accuracy: ±3 ppm from -30 °C to +80 °C
• Integration of a 32.768 kHz quartz crystal and oscillator in the same package
• Provides year, month, day, weekday, hours, minutes, seconds, and leap year correction
• Timestamp function
  – with interrupt capability
  – detection of two different events on one multilevel input pin (for example, for tamper detection)
• Two lin.