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The Epson Toyocom RTC/RX-8564
range of modules are I²C-bus interface real-time clocks that feature a built-in 32.768kHz crystal oscillator.
Additional features include full calendar, clock counter, alarm and fixed-cycle timer interrupt functions.
Available in three compact package designs these modules are suited to applications in mobile telephones, terminals and other small electronic devices.
- Frequency adjusted 32.768kHz crystal oscillator
- 400kHz two-wire I²C-bus interface
- Wide operating and timekeeper voltage range
- Low backup current
- Calendar year, month, day, weekday, hour, minute and seconds functions
- Auto leap year correction
- CMOS design enables long-term battery back-up
- Voltage monitoring function
- Choice of VSOJ-20, SON-22 or VSOJ-12 packages
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| VDD (V) | 1.8 to 5.5 | | |
Clock voltage (V) | VLOW to 5.5 | | |
Low voltage detection (V) | 0.9 typ. 1.1 max. | | |
Operating temperature | –40°C to +85°C | | |
Frequency tolerance | 5 ±23ppm | | |
Backup current (nA) | 275 | | |
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