RX8130CE:BB

- Built-in 32.768 kHz crystal unit with frequency adjustment - Interface type: I²C-Bus - Low standby current: 300 nA Typ./3V - Automatic power switching: monitors Vop voltage and automatically switches to backup power - Backup battery charge control: for rechargeable batteries - Reset function with delay: detects main power supply and cancels reset - Interrupt output: wake-up every minute or every second - Alarm interrupt: day, date, hour, minute, second - Auto-repeat wake-up timer interrupt - Self-monitoring interrupt: crystal oscillation stop, VBAT low, Vop low - Interface type: I²C-Bus, fast mode 400 kHz - Automatic power switching: monitors Vop voltage, automatically switches to backup power, backup power switchover voltage 1.2V Min. - Clock output: selectable output frequency from 32.768 kHz, 1024 Hz, 1 Hz - Wake-up timer: selectable range from 244 μs to 7.5 years (16-bit x 1 channel); timer source clock selectable from 1/3600 Hz, 1/60 Hz, 1 Hz, 64 Hz, 4096 Hz; interrupt output from /IRQ pin automatically released after timer completion; operation auto-repeats at selected period; usable as watchdog timer - Backup battery charge control: automatically stops charging upon full-charge detection; records detected backup power voltage drop in register - Reset function with delay: reset output released when main power is supplied; reset/release voltage selected by register (2 options); delay time from backup mode release is 60 ms Min.

Key features

• 32.768 kHz crystal unit with built-in frequency adjustment
• Low standby current: 300 nA Typ./3V
• Automatic power switching: monitors Vop voltage and automatically switches to backup power
• Backup battery charge control: for rechargeable batteries
• Reset function with delay: detects main power supply and deasserts reset
• Interrupt output: wake-up every minute or every second
• Alarm interrupt: day, date, hour, minute, second
• Auto-repeat wake-up timer interrupt
• Self-monitoring interrupt: crystal oscillation stop, VBAT low, Vop low
• Interface: I2C-Bus, fast mode 400 kHz
• Automatic power switching: monitors Vop voltage, automatically switches to backup power, backup power switching voltage 1.2V Min.
• Clock output: selectable output frequency — 32.768 kHz, 1024 Hz, or 1 Hz
• Wake-up timer: selectable range from 244 μs to 7.5 years (16-bit x 1 channel); timer source clock selectable from 1/3600 Hz, 1/60 Hz, 1 Hz, 64 Hz, or 4096 Hz; interrupt output from /IRQ pin auto-releases after timer completion; automatically repeats at selected period; usable as watchdog timer
• Backup battery charge control: automatically stops charging upon full-charge detection; records detected backup power voltage drop in register
• Reset function with delay: reset output deasserts when main power is supplied; reset/release voltage selectable via register (2 options); delay time from backup mode release is 60ms Min.