Microchip announced the expansion of its standalone real-time clock/calendar (RTCC) portfolio with the new 10-pin, SPI MCP795XX family. The devices include 64 Bytes of SRAM, 2 Kbits of EEPROM and a 128-bit unique ID, which can be ordered blank or pre-programmed with a MAC address. Utility power meters, manufacturing equipment, radios, GPS and hospital instrumentation applications, which need accurate time over a broad temperature range, will also benefit from a digital trimming range which can compensate up to 22 seconds per day of crystal frequency drift. The ICs can log the time and duration of power failures by using the on-chip power-fail timestamp feature. They also boast a 5 MHz SPI bus and millisecond alarm.
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