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Products　|　　NFC Chip

The CN7160 Chip

CN7160 is a MCU with NFC function that supports all modes compliant with the NFC Forum, including Reader/Writer, Card Emulation, and P2P modes. 


CN7160 incorporates  an RF front-end module that supports both passive and active load modulation, enabling the use of extremely small antennas in mobile or wearable devices. It also includes a built-in 256K-byte Flash memory, which can reduce the need for host interaction and minimize code size, greatly simplifying the design process. Furthermore, it is equipped with a built-in high-speed SPI interface compatible with mainstream MCUs.


The CN7160 chip block diagram


Functional Characteristics

  • General Features

    ●  High-speed 32-bit CS0 CPU core

    ●  256K-byte User Flash Memory space

         - 256 bytes per page

         - Configurable for data or program areas

    ●  12K-byte User RAM space

    ●  Three 16-bit prescalar for programmable timers and watchdog timer

    ●  40MHz internal oscillator RC1

    ●  370KHz internal oscillator RC2

    ●  CPU clock divider (divided by 1, 2, 4, or 8) and selectable clock sources

  • Interface Features

    ? NCI V2.2 protocol interface compliant with NFC Forum specifications

    ? Up to 10Mbps speed of SPI in Slave mode

  • RF Front-End Features

    ● High RF output power (up to 250mA)

    ● Supporting RF data rates up to 848kbps

    ● Supporting NFCIP-1 and NFCIP-2 protocols

    ● Supporting PICC mode (Card Emulation):

         - NFC Forum T4T (ISO14443A & B)mode

         - T3T (JIS X6319-4 Felica) mode

    ●  Supporting NFC Forum-compliant embedded T4T for NDEF short records

    ●  Supporting PCD mode (Reader/Writer):

         -  ISO14443 Type A and Type B

         - ISO 18092 passive mode (JIS X6319-4 Felica)

         - NFC T1T, T2T, T3T, T4T, T5T, Mifare (1K/4K)

  • RF Front-End Features 2

    ● Supporting VCD mode (Reader/Writer):

         - ISO15693/ICODE

    ●  Active and passive P2P modes: supporting NFCIP-1 Target and Initiator modes

    ●  Supporting active or passive load modulation

    ●  Supporting small antenna

    ●  Dynamic modulation of load amplitude based on external field strength

    ●  Low-power card detection

    ●  Dynamic power control in Reader/Writer mode

    ●  Complied with contactless EMV specifications

    ●  Complied with the specification 3.0 of NFC Forum Device

  • Additional Features

    ● Six GPIO pins, four of which are multiplexed with SPI

    ● Built-in Power Management Unit (PMU)

    ● Low-power modes (VBAT = 3.6V):

         - Hard power down mode (typical value:10.5uA, max value:16uA)

         - Standby mode:

                   - Enhanced RF detection (typical value:32uA, max value :52uA)

                   - Low-sensitivity RF detection (typical value: 21uA, max value: 36uA)

         - Polling with Low-Power Card Detection (LPCD) (typical value:100uA)

    ●  Autonomous mode when the host is turned off

    ●  IRQ output: interrupting the host MCU for various statuses

  • Additional Features 2

    ●  Automatic wakeup via RF field, internal timer, or host interface

    ●  Power-on Reset (POR) and software reset

    ●  128-bit unique ID

    ●  Operating with a 27.12MHz RF crystal

    ●  Tamper-resistant security features

    ●  Secure bootloader with firmware upgrade capability

    ●  True Random Number Generator (TRNG)

    ●  Hardware CRC

    ●  Dedicated GPIO voltage (1.8V or 3.3V) level

  • Operating Environment

    ●  Operating temperature range: -25 to +85 degrees Celsius

    ●  Operating voltage (VBAT): 2.5V to 5.5V

  • Standards

    ●  NFC Forum Devices Requirements V3.0 specification

    ●  ISO 14443

    ●  ISO 15693

    ●  ISO 18092 (NFCIP-1)

    ●  ISO 21481 (NFCIP-2)

    ●  EMV Contactless

    ●  ETSI TS 102 622 (HCI)

Typical Application

● Smartphones

● Tablets

● Wearable and handheld devices

Technical Support

? Complete development environment

? Rich driver libraries

? Complete application solutions

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