EM Microelectronic
Semiconductor manufacturer specialized in ultra-low power, low voltage integrated circuits for battery-operated and field-powered applications.
Last updated September 11, 2026
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Overview
EM Microelectronic is a semiconductor manufacturer specialized in the design and production of ultra-low power, low voltage integrated circuits (IC) for battery-operated and field-powered applications across diverse consumer and automotive industries. It goes beyond standard and application-specific ICs (ASIC), offering system solutions and modules for applications such as access control, radio frequency identification, mobile phones, mass-market consumer appliances, alarm and security systems, utility and heating meters, sensor signal processing, controlling, car immobilization, and electronic automotive subsystems. It is one of three complementary Swatch Group companies, making up the Electronic Systems Segment of the Swatch Group along with Renata and Micro Crystal.
History
EM Microelectronic is a semiconductor manufacturer specialized in the design and production of ultra-low power, low voltage integrated circuits (IC) for battery-operated and field-powered applications across diverse consumer and automotive industries. It is one of three complementary Swatch Group companies, making up the Electronic Systems Segment of the Swatch Group along with Renata and Micro Crystal. The company is headquartered in Marin, Switzerland.
Products and positioning
Semiconductor manufacturer specialized in ultra-low power, low voltage integrated circuits; part of Swatch Group's Electronic Systems Segment.
em | bleu (EM9305)
Smallest Bluetooth® Low Energy chip (v5.4).
EM4205/EM4305
512 bit read/write multi-purpose low-frequency contactless identification device.
EM4095
125KHz-134KHz read/write analog front end for RFID basestation.
EM9304
Optimized Bluetooth® 5.0 Low Energy Companion or SoC.
EM4033
64 bit read only ISO/IEC 15693 standard compliant contactless identification device.
EM6323/EM6324
Low voltage (1.3V-4.6V) reset circuit with manual reset and watchdog in SOT23-5.
EM4200
128 bit read only, low frequency contactless identification device.
em | echo-V (EM4425)
RAINFC authenticity transponder IC.
EM4094
13.56MHz, compliant ISO 15693 and ISO 14443A&B, analog front end IC for RFID base station.
EM4450
1 kbit read/write, low frequency contactless identification device.
EM4124
Read/write, EPC Gen2 / ISO 18000-63 Type C passive RFID IC.
EM6325
Ultra low power reset circuit with manual reset (1.3V-4.6V, SOT23, SOT143).
EM6151
Low power windowed watchdog with reset, sleep mode functions.
EM4325
4 kbit read/write, EPC Gen2 and TOTAL / ISO 18000-63 (Gen2) and ISO 18000-64 (TOTAL) passive or battery-assisted passive RFID IC.
V3022
EOL real time clock module.
EM6353
Ultra low power reset circuit with fixed delay (1.3V-4.6V, SOT23).
V3020
EOL real time clock IC.
V6340
Voltage detector (SOT23-3 package).
V3021
EOL real time clock IC.
EM7604
Ultra-low power CMOS oscillator circuit.
EM1344
CMOS circuit for analog.
Recent events
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