General description

The PN7462 family is a family of 32-bit ARM Cortex-M0-based NFC microcontrollers

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 family offers an all in one solution, with features such as NFC, supporting all

NFC Forum modes, microcontroller, optional contact smart card reader, and software in a

single chip. It operates at CPU frequencies of up to 20 MHz.

Table 1. Comparison of the 6 PN7462 family members

PN7462AUHN PN7462AUEV PN7362AUHN PN7362AUEV PN7360AUHN PN7360AUEV

Contact smart

card reader

Class A, B, C No No No No No

ISO/IEC 7816

UART

Yes Yes No No No No

Available

Flash memory

160 kB 160 kB 160 kB 160 kB 80 kB 80 kB

SRAM data

memory

12 kB 12 kB 12 kB 12 kB 12 kB 12 kB

General

purposes I/O

12 up-to 21 14 up-to 21 14 up-to 21 14 up-to 21 14 up-to 21 14 up-to 21

Package type HVQFN64 VFBGA64 HVQFN64 VFBGA64 HVQFN64 VFBGA64

Having the differences listed in the table above, all products within the PN7462 family

are equipped with 12 kB of SRAM data memory and 4 kB EEPROM. All products within

the family also include 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.

The PN7462 family NFC microcontroller offers a one chip solution to build contactless, or

contact and 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.

By integrating a contact ISO/IEC 7816 interface on a single chip, the PN7462AUHN

provides a solution for dual interface smart card readers. The PN7462AUHN contact

interface offers a high level of security for the card by performing current limiting, shortcircuit

detection, ESD protection as well as supply supervision. On PN7462AUHN and

PN7462AUEV, an additional UART output is also implemented to address applications

where more than one contact card slot is needed. It enables an easy connection to

multiple smart card slot interfaces like TDA8026.

PN7462AUHN provides thermal and short-circuit protection on all card contacts. It

also provides automatic activation and deactivation sequences initiated by software or

hardware.

2 Features and benefits

2.1 Integrated contact interface frontend

This chapter applies to the products with contact interface only.

• 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

• Compliance with EMV contact protocol specification

• 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 ISO/IEC 7816-3&4 UART interface

This chapter applies to the products with Integrated ISO/IEC 7816 UART interface

only.

The PN7462 family offers the possibility to extend the number of contact interfaces

available. It uses an I/O auxiliary interface to connect a slot extension (TDA8035 - 1 slot,

TDA8020 - 2 slots, and TDA8026 - 5 slots).

• Class A (5 V), class B (3 V), and class C (1.8 V) smart card supply

• Protection of smart card

• Three protected half-duplex bidirectional buffered I/O lines (C4, C7, and C8)

• Compliant with ISO/IEC 7816 and EMVCo standards

2.3 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 Forum tag support (type 1, type 2, type 3, type 4A, type 4B and type 5)

• P2P active and passive, target and initiator

• Card emulation ISO14443 type A

• ISO/IEC 14443 type A and type B

• MIFARE crypto1

• ISO/IEC 15693, and ISO/IEC 18000-3 mode 3

• Low-power card detection

• Dynamic Power Control (DPC)

Adaptive Wave Control (AWC)

• Adaptive Range Control (ARC)

• Compliance with EMV contactless protocol specification

2.4 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 / 80 kB

– SRAM: 12 kB

– EEPROM: 4 kB

– 40 kB boot ROM included, including USB mass storage primary boot loader 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 bauds to

115200 bauds, 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, 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)

• 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

– VFBGA64 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