产品概述
描述
The ST25R3911B-DISCO is a ready-to-use kit featuring the ST25R3911B, an highly integrated HF reader / NFC initiator IC.
The ST25R3911B-DISCO can be operated as ISO18092 (NFCIP-1) active and passive initiator, ISO18092 (NFCIP-1) active target, ISO 14443A and B reader including very high bit rates (VHBR), long range ISO15693 and FeliCa™ reader. Implementation of other standard and custom protocols like MIFARE™ Classic is possible using the AFE and implementing framing in the external microcontroller (stream and transparent modes).
The ST25R3911B-DISCO addresses a wide range of applications such as access control, ticketing, industrial, medical and consumer, where users need optimal RF performance and flexibility combined with low power consumption.
The ST25R3911B-DISCO kit, whose block diagram is shown in Figure 1, allows the user to exploit several features of the ST25R3911B.
It contains a low power capacitive sensor that can be used for ultra-low power wakeup without switching on the reader field. Traditional inductive wakeup with the choice of amplitude or phase measurement can be used as well.
The automatic antenna tuning (AAT) technology enables operation close to metallic parts and/or in changing environments. The available software visually displays the impact of AAT, thus enabling an easy evaluation of the feature.
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所有功能
- Based on ST25R3911B high performance HF reader / NFC initiator with 1.4 W output power, supporting VHBR and AAT
- ISO 18092 (NFCIP-1) active P2P
- ISO14443A, ISO14443B and FeliCa™
- ISO15693
- Supports VHBR (3.4 Mbit/s PICC to PCD framing, 6.8 Mbit/s AFE and PCD to PICC framing)
- Up to 1.4 W output power with differential antenna
- Possibility of driving two antennas in single ended mode
- Inductive and capacitive Wake-up
- Automatic antenna tuning system
- DPO (Dynamic Power Output)
- User selectable and automatic gain control
- Transparent and Stream modes to implement MIFARE™ Classic compliant or other custom protocols
- 6 Mbit/s SPI
- Wide supply voltage range (from 2.4 V to 5.5 V)
- QFN32, 5 mm x 5 mm package
- STM32L476RET6 32-bit microcontroller with 512 kB of Flash memory
- 105 mm x 52 mm, two turns antenna etched on the PCB, and associated VHBR tuning circuit
- Micro-USB connector for communication with the host PC and board powering
- Six LEDs indicating the presence of the RF field and of the protocol used to communicate
- Based on ST25R3911B high performance HF reader / NFC initiator with 1.4 W output power, supporting VHBR and AAT
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特别推荐
全部资源
| 资源标题 | 版本 | 更新时间 |
|---|
Board Manufacturing Specifications (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| ZIP | 1.0 | 25 Sep 2017 | 25 Sep 2017 |
物料清单 (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| 1.0 | 25 Sep 2017 | 25 Sep 2017 |
Schematic Pack (2)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| ZIP | 1.0 | 25 Sep 2017 | 25 Sep 2017 | |
| 1.0 | 25 Sep 2017 | 25 Sep 2017 |
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | WEEE Compliant | 材料声明** |
|---|---|---|---|---|---|---|
| ST25R3911B-DISCO | 批量生产 | CONTRACTS | 工业 | Ecopack2 | - | |
ST25R3911B-DISCO
Package:
CONTRACTSMaterial Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
| 产品型号 | Order from distributors | 从ST订购 | 核心产品 | 供货状态 | 供应商 | ECCN (US) | ECCN (EU) | Country of Origin | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|
| ST25R3911B-DISCO | distributors 无法联系到经销商，请联系我们的销售办事处 | ST25R3911B | 批量生产 | ST | EAR99 | NEC | AUSTRIA | |