FEATURES
Integration of a 32.768 kHz quartz crystal in the same package as the RTC temperature compensated crystal oscillator (TCXO) with integrated capacitors. accuracy: typically 3 ppm from−20 °C to +70 °C, typically 5 ppm from −40 °C to +85 °C provides year, month, day, weekday, hours, minutes and seconds programmable alarm function with interrupt capability programmable countdown timer with interrupt capability programmable watchdog timer with interrupt and reset capability 512 bytes of general purpose static RAM 1 second or 1 minute interrupt output oscillator stop detection two line bi-directional 1 MHz fast mode plus I2C interface timestamp input power-on reset 3 line SPI interface with separate data input and output (maximum speed 6.5 Mbits/s) programmable square wave output pin timestamp function with interrupt capability battery backup input pin and switch-over I2C-bus slave address: read A3H and circuitry write A2H extra power fail detec...
NXP Semiconductors
