GATEMODE BM8563EMA

BM8563 is a CMOS real-time clock and calendar IC optimized for low power consumption. It also provides a programmable clock output, interrupt output, and low-voltage detector. All addresses and data are transferred serially via a two-wire bidirectional I²C bus, with a maximum bus speed of 400kbit/s. The register address auto-increments after each write or read of a data byte.

• Year, month, day, day-of-week, hour, minute, and second based on 32.768kHz quartz crystal
• Century flag
• Clock operating voltage: 1.2V ~ 5.5V at room temperature
• Low backup current; typical 0.5 μA at VDD = 3.0V and Tamb = 25°C
• 400kHz two-wire I²C bus interface (at VDD = 1.8V ~ 5.5V)
• Programmable clock output for peripherals (32.768kHz, 1.024kHz, 32Hz, and 1Hz)
• Alarm and timer functions
• Integrated oscillator capacitor
• Internal power-on reset
• I²C bus slave address: read A3h, write A2h
• Open-drain interrupt pin

• Mobile phones
• Utility meters
• Portable instruments
• Electronic metering
• Battery-powered products