EPSON RX8025T-UB

This module is an I²C bus interface-compliant real-time clock which includes a 32.768 kHz DTCXO. In addition to providing a calendar (year, month, date, day, hour, minute, second) function and a clock counter function, this module provides an abundance of other functions including an alarm function, fixed-cycle timer function, time update interrupt function, and 32.768 kHz output function. The devices in this module are fabricated via a C-MOS process for low current consumption, which enables long-term battery back-up. All of these many functions are implemented in a SOP package.

• Features built-in 32.768 kHz DTCXO, High Stability
• Supports I²C -Bus's high speed mode (400 kHz)
• Alarm interrupt function for day, date, hour, and minute settings
• Fixed-cycle timer interrupt function
• Time update interrupt function (Seconds, minutes)
• 32.768 kHz output with OE function (FOE and FOUT pins)
• Auto correction of leap years (from 2000 to 2099)
• Wide interface voltage range: 1.6 V to 5.5 V
• Wide time-keeping voltage range: 1.2 V to 5.5 V
• Low current consumption: 0.8µA / 3 V (Typ.)