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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
● 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
• NCI V2.2 protocol interface compliant with NFC Forum specifications
• Up to 10Mbps speed of SPI in Slave mode
● 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)
● 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
● 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
● 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 temperature range: -25 to +85 degrees Celsius
● Operating voltage (VBAT): 2.5V to 5.5V
● 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)
● Smartphones
● Tablets
● Wearable and handheld devices
• Complete development environment
• Rich driver libraries
• Complete application solutions
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