MF RC530-Highly integrated ISO14443A contactless smart card chip
The MF RC531 is a high‑integration 13.56 MHz RFID transceiver chip supporting ISO14443 A/B and MIFARE Classic protocols. It offers both 8‑bit parallel and SPI interfaces, a built‑in CRYPTO1 encryption engine, and can drive an antenna directly for up to 100 mm read distance.
The document provides a functional block diagram, detailed pin descriptions, power supply requirements, current consumption figures, and example application circuits, making it useful for hardware designers integrating the chip into contactless payment, public‑transport, or handheld terminals. This manual is written in Chinese.
| AVDD analog supply voltage | 4.5 V – 5.5 V |
|---|---|
| TVDD transmitter supply voltage | 3.0 V – 5.5 V |
| Maximum antenna distance | 100 mm |
| Idle command current (typical) | 8 mA |
The chip can drive an antenna for up to 100 mm of read distance.
It supports an 8‑bit parallel interface and a 4‑wire SPI interface.