According to EM Microelectronic, its EM3028 real-time clock module offers 50% extended battery life and double the accuracy of comparable devices. Factory calibrated to within ±1 ppm at 25°C, the clock module provides accurate sleep and wake-up timing for connected devices, such as wearables, portables, IoT, metering, health care, and industrial.
The EM3028 integrates a real-time clock IC and 32 kHz crystal in a 3.2×1.5×0.8-mm hermetically sealed ceramic package with a metal lid. Also housed within the module are 43 bytes of nonvolatile user memory and 2 bytes of RAM, as well as an I2 C bus interface. The device has a supply voltage range of 1.2 V to 5.5 V and operates over a temperature range of -40°C to +85°C.
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Factory calibrated to within ±1 ppm at 25°C, the clock module provides accurate sleep and wake-up timing for connected devices, such as wearables, portables, IoT, metering, health care, and industrial.