STMicroelectronics’ ST25RU3993 is an RFID reader IC which implements all the relevant protocols, including ISO 18000-6C (the EPC Class1 Gen2 standard), the ISO 29143 air-interface protocol for mobile RFID interrogators, and ISO 18000-6A/B for operation in direct mode.
It includes an on-chip oscillator and a power amplifier, and offers a complete set of RFID features including Dense Reader Mode (DRM) functionality and support for frequency hopping, low-level transmission coding, low-level decode, data framing and cyclic redundancy checking.
The ST25RU3993 operates at very low power, making it suitable for use in portable and battery-powered equipment.
Housed in a 7mm x 7mm QFN package, the ST25RU3993 offers very high sensitivity and provides high immunity against the effects of antenna reflection and self-jamming. This is crucial in mobile and embedded applications, in which antenna design is often compromised by cost or size constraints. High sensitivity enables end-products to achieve the required read range while using a simpler and cheaper antenna, thus reducing overall system cost.
Thanks to its high level of integration, the ST25RU3993 requires only an external 8-bit microcontroller to create a complete RFID reader system, eliminating the need for a complex RFID co-processor.
- Integrated supply regulators
- Support for frequency hopping
- Amplitude Shift Keying (ASK) or PR-ASK modulation
- Phase bit for tag tracking with 8-bit linear RSSI
- Operating-temperature range: -40°C to 85°C
- RFID readers