PN5321A3HN

●80C51 microcontroller core with 40 KB ROM and 1 KB RAM
●Highly integrated demodulator and decoder
●Buffered output drivers to connect an antenna with minimum number of external
components
●Integrated RF level detector
●Integrated data mode detector
●Supports ISO/IEC 14443A/MIFARE
●Supports ISO/IEC 14443B (Reader/Writer mode only)
●Typical operating distance in Reader/Writer mode for communication to
ISO/IEC 14443A/MIFARE, ISO/IEC 14443B or FeliCa cards up to 50 mm depending
on antenna size and tuning
●Typical operating distance in NFCIP-1 mode up to 50 mm depending on antenna size,
tuning and power supply
●Typical operating distance in ISO/IEC 14443A/MIFARE or FeliCa card emulation mode
of approximately 100 mm depending on antenna size, tuning and external field
strength
●Supports MIFARE Classic 1K or MIFARE Classic 4K encryption in Reader/Writer
mode and MIFARE higher transfer speed communication at 212 kbit/s and 424 kbit/s
●Supports contactless communication according to the FeliCa protocol at 212 kbit/s and
424 kbit/s
●Integrated RF interface for NFCIP-1 up to 424 kbit/s
●Possibility to communicate on the RF interface above 424 kbit/s using external analog
components
●Supported host interfaces
●SPI interface
●I2C interface
●High-speed UART
●Dedicated host interrupts
●Low power modes
●Hard-Power-Down mode (1 A typical)
●Soft-Power-Down mode (22 A typical)
●Automatic wake-up on I2C, HSU and SPI interfaces when device is in Power-down
mode
●2.7 to 5.5 V power supply operating range
●Power switch for external secure companion chip
●Dedicated IO ports for external device control
●Integrated antenna detector for production tests
●ECMA 373 NFC-WI interface to connect an external secure 

• PN5321A3HN x 1