Product Overview:
This module is designed around the industry-leading STMicroelectronics ST25R3916 High-Performance NFC Universal Device/HF Reader IC. It integrates a powerful 13.56MHz RF front-end with flexible communication interfaces, supporting a wide range of NFC and HF RFID protocol standards. Featuring a compact design with an integrated onboard antenna, this module provides developers with an easy-to-integrate, high-performance platform for implementing NFC functionality in demanding contactless applications.
Key Features:
- Core Chip: Features the STMicroelectronics ST25R3916 IC.
- Broad Protocol Support: Fully supports ISO 14443A/B, ISO 15693, FeliCa™, NFC Forum Type 1-5 tag reading/writing, and NFC P2P communication modes.
- Excellent RF Performance: Offers configurable output power up to 1.4W (chip capability) and high receiver sensitivity for extended read range.
- Dual Host Interface: Hardware supports both SPI and I2C communication interfaces, selectable via an onboard jumper, providing flexibility for system integration (I2C software is in developing).
- Low Power Operation: Supports the ST25R3916’s low-power card detection (wake-up mode), suitable for battery-powered applications.
- Integrated PCB Antenna: Includes an onboard, optimized 13.56MHz PCB trace antenna with a matching network, ready for use without an external antenna.
- Standardized Connector: Provides a standard-pitch interface connector for easy connection to a host controller.
Technical Specifications:
- Operating Frequency: 13.56 MHz
- Communication Interface: SPI (up to 10 Mbps – chip capability), I2C (up to 400 kbps / potentially higher speeds – chip capability)
- Power Supply:
- Input Voltage (VCC Pin): 4.5~5.5V
- Core Operating Voltage: +3.3V
- Interface Logic Level: 3.3V
- Power Consumption: [Confirmation Recommended: Provide typical values, e.g., Operating Current (@ 5V Input), Standby Current, Wake-up Mode Current]
- Module Dimensions: PCB Length (42.8mm) x Width (40.3mm) x Height (5.4mm)
Pinout Description:
| Pin # (Example) | Name | Type | SPI Mode Function | I2C Mode Function | Description |
|---|---|---|---|---|---|
| 1 | IRQ | Output | Interrupt Output | Interrupt Output | Notifies host of events |
| 2 | CS | Input | SPI Chip Select (Active Low) | [N/A] | Used in SPI mode |
| 3 | SCK/SCL | Input | SPI Clock | I2C Clock | Clock signal |
| 4 | MOSI | Input | SPI Master Out Slave In | [N/A] | Used in SPI mode |
| 5 | MISO/SDA | Output/IO | SPI Master In Slave Out | I2C Data | Data signal |
| 6 | 5V | Power In | +5V Power Input | +5V Power Input | Input to onboard LDO |
| 7 | GND | Ground | Ground | Ground | Power and Signal Ground |
Interface Mode Selection: Select the interface mode via the onboard jumper I2C. Bridge the jumper to select I2C mode.
Comparison with PN532:
- Performance Advantage: Offers significantly higher output power and receiver sensitivity compared to common PN532 modules, enabling longer read distances.
- Protocol Completeness: Provides robust and reliable ISO 15693 support, addressing a common limitation of PN532 solutions.
- Advanced Low Power: Supports the ST25R3916’s sophisticated low-power card detection modes.
Application Areas:
Access Control, Payment Terminals, Ticketing, Identity Verification, Industrial Automation, Asset Tracking, Smart Device Interaction, and other applications requiring high-performance, multi-protocol NFC/HF RFID reading capabilities.
Reading/Writing Performance:
| Tag / Model | Standard | Chip / Variant | Size (cm) | Read Range (cm) |
|---|---|---|---|---|
| NFC Type 1 Tag | ISO 14443-3A | Topaz 512 | 8.5 × 5.4 | 6.0 |
| NFC Type 2 Tag | ISO 14443-3A | Mifare Ultralight C | 8.5 × 5.4 | 2.3 |
| NFC Type 2 Tag | ISO 14443-3A | NTAG 216 | 8.5 × 5.4 | 6.0 |
| NFC Type 2 Tag | ISO 14443A | NTAG 215 | 8.5 × 5.4 | 5.5 |
| NFC Type 2 Tag (Ultralight AES) | ISO 14443A | Ultralight AES | 8.5 × 5.4 | 9.5 |
| NFC Type 2 Tag (Ultralight EV1) | ISO 14443A | Ultralight EV1 | 8.5 × 5.4 | 8.5 |
| NFC Type 2 Tag (NTAG213) | ISO 14443A | NTAG213 | 8.5 × 5.4 | 5.5 |
| NFC Type 3 Tag | ISO 14443AFe | Felica Lite-S RC-S966 | 8.5 × 5.4 | 0 |
| NFC Type 4 Tag | ISO 14443-4 | MIFARE DESFire | 8.5 × 5.4 | 3.5 |
| NFC Type 4 Tag (DESFire 8K) | ISO 14443-4 | MIFARE DESFire 4K/8K | 8.5 × 5.4 | 2.8 |
| NFC Type 4 Tag (NTAG424 DNA) | ISO 14443A | NTAG424 DNA | 8.5 × 5.4 | 5.0 |
| NFC Type 4 Tag | ISO 14443-4B | – | 8.5 × 5.4 | 2.3 |
| NFC Type 5 Tag | ISO 15693 | ICODE SLI-S | 8.5 × 5.4 | 9.5 |
| NFC Type 5 Tag (I CODE SLIX2) | ISO 15693 | I CODE SLIX2 | 8.5 × 5.4 | 11.0 |
| NFC Type 5 Tag (I CODE SLI-X) | ISO 15693 | I CODE SLI-X | 8.5 × 5.4 | 9.5 |
| F08 Anti-Metal Tag | ISO 14443A | MIFARE Classic | 5 × 5 | 2.2 |
| F08 Anti-Metal Tag | ISO 14443A | MIFARE Classic | 4 × 2.5 | 2.7 |
| F08 Anti-Metal Tag (round) | ISO 14443A | MIFARE Classic | Ø 3 | 0.9 |
| 213 Anti-Metal Tag | ISO 14443A | NTAG213 | 4 × 2.5 | 2.2 |
| 213 Anti-Metal Tag (round) | ISO 14443A | NTAG213 | Ø 3 | 2.0 |
| 15693 Anti-Metal Tag | ISO 15693 | – | 4 × 2.5 | 2.3 |
