EM Microelectronic
EM Microelectronic is a Swiss semiconductor manufacturer and a subsidiary of the Swatch Group, established in 1975. The company is a leading provider of low-frequency RFID chips, particularly the EM4x00 series for 125 kHz read-only and read/write applications in access control and identification. Their portfolio also includes ISO 14443 and ISO 15693 compliant high-frequency chips for contactless smart cards and NFC applications.
All EM Microelectronic chips (15)
- LF 125 kHzEM4100
Read-only 64-bit transponder, industry standard for access cards
- LF 125 kHzEM4102
Read-only 64-bit contactless ID device, EM4100 successor
- UHF 860–960 MHzEM4124
EPC Class-1 Gen-2 UHF IC with 96-bit EPC and 32-bit user memory for cost-sensitive item-level tagging.
- LF 125 kHzEM4134
Low-frequency RFID read-only chip for cost-effective identification and access control applications.
- LF 125 kHzEM4200
Read-only 128-bit, replaces EM4100/4102
- LF 125 kHzEM4205 / EM4305
512-bit R/W multi-purpose transponder
- UHF 860–960 MHzEM4325
UHF RFID tag IC with sensor interface and long read range for logistics and sensing applications
- Dual-FrequencyEM4423
Dual-frequency NFC + UHF RAIN RFID tag IC
- Dual-FrequencyEM4425
HF ISO 15693 + UHF ISO 18000-6C, 2Kbit EEPROM
- LF 125 kHzEM4450
Read/write LF RFID chip with 1 Kbit EEPROM and enhanced security features for access control
- UHF 860–960 MHzEM4469
UHF RFID tag IC with extended memory and enhanced features for logistics applications
- LF 125 kHzEM4543
Read/write LF RFID IC with 512-bit user memory, ISO11784/85 compliant for animal identification and access control
- LF 125 kHzEM4550
Read/write 125 kHz RFID IC with 1 Kbit EEPROM organized in 32 blocks for access control and identification
- LF 125 kHzLR2000
Low-frequency read-only RFID chip with unique ID for access control and asset tracking applications
- UHF 860–960 MHzSL900A
EPC Class 3 semi-passive UHF RFID IC with integrated sensors for temperature logging and monitoring