GATEMODE BM85163ESA

The BM85163 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. A programmable clock output, interrupt output, and voltage-low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I²C -bus. Maximum bus speed is 400kbit/s. The register address is incremented automatically after each written or read data byte.

• Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768kHz quartz crystal
• Century flag
• Clock operating voltage: 1.2V to 5.5V at room temperature
• Low backup current; typical 0.5μA at VDD = 3.0V and Tamb = 25℃
• 400kHz two-wire I²C -bus interface (at VDD = 1.8V to 5.5V)
• Programmable clock output for peripheral devices (32.768kHz, 1.024kHz, 32Hz, and 1Hz)
• Alarm and timer functions
• Integrated oscillator capacitor
• Internal Power-On Reset (POR)
• I²C -bus slave address: read A3h and write A2h
• Open-drain interrupt pin

• Mobile telephones
• Utility Meters
• Portable instruments
• Electronic metering
• Battery powered products