Ultra-Low Power ICs — Semiconductor brand of the Swatch Group
EM Microelectronics is a semiconductor subsidiary of the Swatch Group of Switzerland, specializing in ultra-low power CMOS IC design and manufacturing. Product lines include ultra-low power MCUs, NFC/RFID ICs, LCD driver ICs, energy harvesting ICs, and sensor ICs. Widely used in smart watches, wearables, smart cards, IoT sensor nodes, and medical devices.
Official WebsiteThe EM6819 is an ultra-low power 8-bit RISC microcontroller from EM Microelectronics. Built on CMOS process, it operates down to 0.9V and achieves nA-level sleep current. Features integrated LCD driver, timers, ADC, and rich peripherals — ideal for battery-powered consumer electronics and smart card applications.
The EM9301 is a single-mode Bluetooth 4.0 Low Energy (BLE) controller IC designed for ultra-low power applications. It communicates with the host MCU via SPI, integrates the RF front-end and baseband, and provides a complete BLE link layer — ideal for wearables, sensors, and beacons requiring extremely low operating current.
EM4305 is a 125kHz low-frequency RFID read/write transponder IC powered by the inductive coil. Supports ASK/FSK/PSK modulation with 512-bit EEPROM — widely used in access control cards, employee ID cards, animal identification, and industrial tracking.