NFC Cortex®-M0 All-in-One Microcontroller with Optional Contact Interface for Access Control

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Product Details

Block Diagram

PN7462 Family Sample Application

PN7462 Family Sample Application

Features

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-circuiting, 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

Integrated ISO/IEC 7816-3&4 UART interface

    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

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 products using 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

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 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 bauds to 115200 bauds, and faster speeds 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
    • Controller 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 the 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

Comparison Table

PN7462 Family PN7412AU PN7462AU PN7362AU PN7360AU
Item reference PN7412AUHN PN7462AUHN PN7462AUEV PN7362AUHN PN7362AUEV PN7360AUHN PN7360AUEV
Package type HVQFN64 HVQFN64 VFBGA64 HVQFN64 VFBGA64 HVQFN64 VFBGA64
Contactless Interface No NFC Forum Compliant
Available Flash Memory 160 kB 80kB
General Purposes I/O 12 up-to 21 14 up-to 21
Contact Interface Class A, B, C No
ISO/IEC 7816-&4 UART Yes No

Design Resources

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