Features and benefits
• UL Recognized Component (PCF85263ATL)
• Provides year, month, day, weekday, hours, minutes, seconds, and 100th seconds based on a 32.768 kHz
quartz crystal
• Stop-watch mode for elapsed time counting. From 100th seconds to 999 999 hours
• Two independent alarms
• Battery back-up circuit
• Watchdog timer
• Three timestamp registers
• Two independent interrupt generators plus predefined interrupts at every second, minute, or hour
• Frequency adjustment via programmable offset register
• Clock operating voltage: 0.9 V to 5.5 V
• Low current; typical 0.28 μA at VDD = 3.0 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
kHz, 1.024 kHz, and 1 Hz)
• Configurable oscillator circuit for a wide variety of quartzes: CL = 6 pF, CL = 7 pF, and CL = 12.5 pF
• Packages offered: SI8, TSSOP8, TSSOP10, HXSON10, and WLCSP12