1. General description
The PN7462 is a 32-bit ARM Cortex-M0-based NFC microcontroller offering high
performance and low power consumption. It has a simple instruction set and memory
addressing along with a reduced code size compared to existing architectures. PN7462
offers an all in one solution, with features such as NFC, microcontroller, optional contact
smart card reader, and software in a single chip. It operates at CPU frequencies of
up to 20 MHz.
The peripheral complement of the PN7462 microcontroller includes 160 kB of flash
memory, 12 kB of SRAM data memory and 4 kB EEPROM. It also includes one host
interface with either high-speed mode I2C-bus, SPI, USB or high-speed UART, and two
master interfaces, SPI and fast-mode plus I2C-bus. Four general-purpose counter/timers,
a random number generator, one CRC coprocessor and up to 21 general-purpose I/O
pins are also available.
The PN7462 NFC microcontrollers offer a one chip solution to build contactless
applications. It is equipped with a highly integrated high-power output NFC-IC for
contactless communication at 13.56 MHz enabling EMV-compliance on RF level, without
additional external active components.
PN7462 supports the following operating modes:
• ISO/IEC 14443-A and B, MIFARE
• JIS X 6319-4 (comparable with FeliCa scheme)
• ISO/IEC 15693, ICODE, ISO/IEC 18000-3 mode 3
• NFC protocols - tag reader/writer, P2P
• ISO/IEC 14443- type A card emulation
• EMVCo compliance

2. Features and benefits
2.1 Integrated contact interface frontend
 Class A, B, and C cards can work on 1.8 V, 3 V, and 5 V supply
 Specific ISO UART, variable baud rate through frequency or division ratio
programming, error management at character level for T = 0, and extra guard time
register
 DC-to-DC converter for class A support starting at 3 V, and class B support starting
at 2.7 V
 Thermal and short-circuit protection on contact cards
 Automatic activation and deactivation sequence, initiated by software or by hardware
in case of short-circuit, card removal, overheating, and VDD or VDD drop-out
 Enhanced ESD protection (> 12 kV)
 ISO/IEC 7816 compliant
 EMVCo 4.3 compliant
 Clock generation up to 13.56 MHz
 Synchronous card support
 Possibility to extend the number of contact interfaces, with the addition of slot
extenders such as TDA8026
2.2 Integrated contactless interface frontend
 High RF output power frontend IC for transfer speed up to 848 kbit/s
 NFC IP1 and NFC IP2 support
 Full NFC tag support (type 1, type 2, type 3, type 4A and type 4B)
 P2P active and passive, target and initiator
 Card emulation ISO14443 type A
 ISO/IEC 14443 type A and type B
 MIFARE classic card
 ISO/IEC 15693, and ISO/IEC 18000-3 mode 3
 Low power card detection
 Dynamic Power Control (DPC) support
 Compliance with EMV contactless protocol specification
 Compliance with NFC standards
2.3 Cortex-M0 microcontroller
 Processor core
 ARM Cortex: 32-bit M0 processor
 Built-in Nested Vectored Interrupt Controller (NVIC)
 Non-maskable interrupt
 24-bit system tick timer
 Running frequency of up to 20 MHz
 Clock management to enable low power consumption
 Memory
 Flash: 160 kB
SRAM: 12 kB
 EEPROM: 4 kB
 40 kB boot ROM included, including USB mass storage primary bootloader for
code download
 Debug option
 Serial Wire Debug (SWD) interface
 Peripherals
 Host interface:
 USB 2.0 full speed with USB 3.0 hub connection capability
 HSUART for serial communication, supporting standards speeds from 9600 baud
to 115200 baud, and faster speed up to 1.288 Mbit/s
 SPI with half duplex and full duplex capability with speeds up to 7 Mbit/s
 I2C supporting standard mode, fast mode and high-speed mode with multiple
address support
 Master interface:
 SPI with half duplex capability from 1 Mbit/s to 6.78 Mbit/s
 I2C supporting standard mode, fast mode, fast mode plus and clock stretching
 Up to 21 General-Purpose I/O (GPIO) with configurable pull-up/pull-down resistors
 GPIO1 to GPIO12 can be used as edge and level sensitive interrupt sources
 Power
 Two reduced power modes: standby mode and hard power-down mode
 Supports suspend mode for USB host interface
 Processor wake-up from hard power-down mode, standby mode, suspend mode
via host interface, contact card interface, GPIOs, RF field detection
 Integrated PMU to adjust internal regulators automatically, to minimize the power
consumption during all possible power modes
 Power-on reset
 RF supply: external, or using an integrated LDO (TX LDO, configurable with 3 V,
3.3 V, 3.6 V, 4.5 V, and 4.75 V)
 Pad voltage supply: external 3.3 V or 1.8 V, or using an integrated LDO (3.3 V
supply)
 Integrated contact interface voltage regulation for 1.8 V, 3 V, and 5 V card supply,
including a DC-to-DC converter for supporting class A and class B cards
 Timers
 Four general-purpose timers
 Programmable WatchDog Timer (WDT)
 CRC coprocessor
 Random number generator
 Clocks
 Crystal oscillator at 27.12 MHz
 Dedicated PLL at 48 MHz for the USB
 Integrated HFO 20 MHz and LFO 365 kHz
 General
 HVQFN64 package
 Temperature range: 40 C to +85 C
3. Applications
 Physical access control
 Gaming
 USB NFC reader, including dual interface smart card readers
 Home banking, payment readers EMVCo compliant
 High integration devices
 NFC applications