PCF85063A Description
The PCF85063A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. An offset register allows fine-tuning of the clock. All addresses and data are transferred serially via the two-line bidirectional I2C-bus.
PCF85063A Key Features
- Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
- Clock operating voltage: 0.9 V to 5.5 V
- Low current; typical 0.22 μA at VDD = 3.3 V and Tamb = 25 °C
- 400 kHz two-line I2C-bus interface (at VDD = 1.8 V to 5.5 V)
- Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048
- Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF
- Alarm function
- Countdown timer
- Minute and half minute interrupt
- Oscillator stop detection function