ST21NFCD中文资料支持有源负载调制加速器的NFC控制器数据手册ST规格书

描述 Description

The ST21NFCD is a single NFC controller IC designed for integration in mobile devices and NFC compliant products. It includes NFC functions in the three operating modes: Card Emulation, Reader/Writer and Peer to Peer communication.

This product is based on an advanced ARM Cortex-M3 32-bit microcontroller running at 28 MHz.

All internal operations are synchronized by a Clock Generator module.

Two clock source options are available: using an external Quartz or using an external reference clock (in order to reduce the number of external components).

Thanks to an enhanced power switch system, the ST21NFCD manages the power supply of the device and its associated Secure Elements.

The ST21NFCD supports NCI 2.0.

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark.

特性 Features

• ARM® Cortex®-M3 microcontroller
• Enhanced Active load modulation technology
• Compatible with extremely small or metal frame antennas
• Battery voltage monitoring
•FracN PLL input range from 13 to 76.8 MHz
•27.12 MHz external crystal oscillator
• Integrated PMU
•LDOs for internal voltages
•2 ₓ LDOs for external voltages
•Voltage detectors for supplies monitoring
•Low power mode state machine
• Support of an external DC/DC converter for TX supply
•Active and passive Peer-to-Peer
• ISO/IEC 18092 - NFCIP-1 Initiator & Target
•Passive mode – Reader/Writer
• NFC Forum Type 1/2/3/4/5 tags
• MIFARE® Classic12
•Active mode – Card Emulation
• ISO/IEC 14443 Type A & B
• MIFARE® Classic(a)(b) through SWP-CLT
• External communication interfaces
•Two SWP master interfaces up to 1.695 Mbit/s
•I2C slave interface up to 3.4 MHz
•Slave and master SPI interface (up to 13 MHz)
•HSUART interface up to 6 Mbit/s
•Secure firmware update mechanism
•Battery voltage support from 2.4 V to 5 V
•I/O dedicated voltage level (VPS_IO) from 1.62 V to 3.3 V
•Supports Class B and C operating conditions for UICC
•Ambient operating temperature -25 to + 85 °C
•Mobile devices
•Wearable devices
•SmartWatch
•Secure Connected Devices