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STMicroelectronics
ST25DV02K - NFC/RFID 动态标签IC
ST25DV02K-W1, ST25DV02K-W2
意法半导体的ST25DV-PWM NFC动态标签晶片首次采用一个创新的通过非接触式通信技术在生产线上或安装现场预设设备参数的方式,并简化在使用过程中的参数设置或微调操作。该动态标签IC瞄准所有的基于PWM(脉冲宽度调制)控制器的应用,例如,照明产品、电动设备、风扇和恒温器,使用ISO15693 RFID读取器或有NFC功能的智慧手机或其它移动设备更新标签上的资料。

新动态标签IC首次整合意法半导体经过市场检验的NFC技术与PWM逻辑,根据(NFC Type 5和ISO / IEC 15693相容)RFID介面收到并保存在片上EEPROM中的设置资料,使用嵌入式脉冲宽度/周期机制生成控制信号。只要标签上的PWM模组一上电,PWM输出就会立即开始工作,并且独立于RF电路运行。为了更方便省事,可以在设备运行状态下通过NFC介面动态修改PWM控制器配置。
新推出的两款产品ST25DV02K-W1和ST25DV02K-W2分别提供4mA推挽式PWM单输出和双输出,最多可以独立调节两颗LED灯的亮度或两个电机的速度。标签内置高品质、高精度的PWM发生器,脉冲宽度解析度为62.5ns,在488Hz最低频率时相当于15位元解析度,在31.25kHz最高频率时相当于9位元解析度。工作温度范围-40°C至105°C,除电源去耦电容外,标签不需要任何外部振荡器或其它元件。
通过非接触式介面可以在制造、销售、安装或维护环节随时更新PWM参数。像ST25系列的其它产品一样,ST25DV-PWM动态NFC标签提供多种资产和资料保护功能,包括用于身份验证的TruST25™数位签章机制。此外,独立的32/64位元密码保护区可防止非法访问标签EEPROM。
The PWM outputs are configured at boot time, and can be updated live through RF link. RF and PWM are independently powered and can work in stand-alone mode. The ST25DV02K-W1/2 contains 256 bytes (64 blocks) of memory for User data. This memory is accessible through the RF interface, following ISO/IEC 15693 or NFC Forum Type 5 Tag recommendations.
Key Features
新推出的两款产品ST25DV02K-W1和ST25DV02K-W2分别提供4mA推挽式PWM单输出和双输出,最多可以独立调节两颗LED灯的亮度或两个电机的速度。标签内置高品质、高精度的PWM发生器,脉冲宽度解析度为62.5ns,在488Hz最低频率时相当于15位元解析度,在31.25kHz最高频率时相当于9位元解析度。工作温度范围-40°C至105°C,除电源去耦电容外,标签不需要任何外部振荡器或其它元件。
通过非接触式介面可以在制造、销售、安装或维护环节随时更新PWM参数。像ST25系列的其它产品一样,ST25DV-PWM动态NFC标签提供多种资产和资料保护功能,包括用于身份验证的TruST25™数位签章机制。此外,独立的32/64位元密码保护区可防止非法访问标签EEPROM。
The PWM outputs are configured at boot time, and can be updated live through RF link. RF and PWM are independently powered and can work in stand-alone mode. The ST25DV02K-W1/2 contains 256 bytes (64 blocks) of memory for User data. This memory is accessible through the RF interface, following ISO/IEC 15693 or NFC Forum Type 5 Tag recommendations.
Key Features
- Pulse width modulation outputs
- Up to 2x independent outputs
- 1x PWM output with ST25DV02K-W1
- 2x PWM outputs with ST25DV02K-W2
- From 488 Hz to 31250 Hz
- 62.5 ns pulse width resolution:
- Accuracy: ±10% over temperature range
- No need for external oscillator
- Supply voltage from 1.8 V to 5.5 V, independent from contactless interface
- Independent push-pull outputs
- Live update of PWM parameters controlled by contactless interface
- Up to 2x independent outputs
- Contactless interface
- Based on ISO/IEC 15693 and NFC Forum Type 5 Tag
- Supports all ISO/IEC 15693 modulations, coding, sub-carrier modes and data rates
- Single and multiple blocks read
- Internal tuning capacitance: 28.5 pF
- Memory
- 2-kbits of EEPROM
- Accessible in blocks of 4x bytes
- 5 ms typical write time (one block)
- Data retention: 40 years
- Write cycles endurance:
- Data protection
- Up to 4 independent areas, including the PWM control area, with flexible protection mechanism based on 32/64-bits passwords
- System configuration: write protection by 32-bit password
- TruST25™ Digital signature mechanism for authentication
- Temperature range
- From -40 °C to +85 °C (Contactless interface)
- From -40 °C to +105 °C (PWM interface)
- Package
- 8-pin packages
- ECOPACK2® (RoHS compliant)


