TMS37157
- Wide Supply Voltage Range 2 V to 3.6 V
- Ultra Low Power Consumption
- Active Mode Max. 150 µA
- Power Down Mode 60 nA
- 121 Free Bytes User Memory
- Low Frequency Halb Duplex (HDX) Interface
- HDX Transponder Communication Achieving Maximum
Perfomance and Highest Noise Immunity - Special Selective Addressing Mode Allows
Anti Collision - Up to 8 kbit/s LF Uplink Data Rate
- 126 Byte EEPROM:
- 121 Bytes Free Available EEPROM User Memory
- 32 Bit Unique Serial Number
- 8 Bit Selective Address
- High EEPROM Flexibility
- Pages are Irreversible Lockable and Protectable
- Battery Check and Battery Charge Function
- Resonance Frequency: 134.2 kHz
- Integrated Resonance Frequency Trimming
- Downlink – Amplitude Shift Keying
- Uplink – Frequency Shift Keying
- HDX Transponder Communication Achieving Maximum
- 3 Wire SPI Interface for Accessing the EEPROM and
Exchanging Data With the Microcontroller Through
the LF Interface - 0.6mm Pitch, 4mm x 4mm VQFN Package
- APPLICATIONS
- Wireless Batteryless Sensor Interface using
Energy Harvesting- Microcontroller and Sensor can be Powered Through the
LF Link - Data is Directly Transmitted Over the LF Link From the
Base Station via the TMS37157 to the Micrcontroller and Vice
Versa.
- Microcontroller and Sensor can be Powered Through the
- Batteryless Configuration Memory
- Memory can be Written Without Battery Support
- Microcontroller can Read the Content of the Memory When
It Gets Connected to a Battery and Use It for Configuration - Microcontroller can Write the Memory, Which can be Read Out
Later Through the LF Link
- Ultra Low Power Data Logger Memory (Smart Metering)
- Memory Can Be Written By a Microcontroller
- Memory Can Be Read Through LF Interface Without
Battery Support
- Multi Purpose LF Interface to a Microcontroller
- Short Range RF Interface to a Microcontroller Where
Other Frequencies are Not an Option - Ultra Low Power Mode can Result in an
Overall Power Consumption of 60 nA
- Short Range RF Interface to a Microcontroller Where
- Remote Control Application
- Combination With an UHF Transmitter or IR Transmitter and a µC
- Power Management of the TMS37157 can Power Down
the Microcontroller - The Push Button Detection Circuit can Power Up a
Microcontroller
- Stand Alone LF-Transponder with Memory
- RFID Transponder with Unique ID and 121
Bytes Free Programmable EEPROM User Memory - Only Few Additional Components Needed
- No Battery Required
- RFID Transponder with Unique ID and 121
- Wireless Batteryless Sensor Interface using
The TMS37157 combines a Low Frequency Transponder Interface with an SPI Interface and Power Management for a connected microcontroller. It is the ideal device for any Configuration, Data Logger-, Sensoror Remote Control Application. The Transponder memory is accessible through SPI and LF and, in the second case, operates without the need for a battery. The use of the Low Frequency Band ensures a communication in a defined direction and harsh environments.
The TMS37157 manages the Transponder communication and push button interaction. During sleep state the devices enters a special low power mode with only 60 nA current consumption.
The EEPROM memory is accessible over the LF interface without support from the battery or through SPI by a microcontroller if a battery is connected. The TMS37157 offers a special battery charge mode.
The external resonance circuit with a LF coil and a resonance capacitor can be trimmed to the correct resonance frequency with the integrated trimming capability achieving an easy way to eliminate part tolerances.
The small RSA 16-pin package together with only a few external components results in a cost efficient design.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Passive Low Frequency Interface Device With EEPROM and 134.2 kHz Transponder datasheet (Rev. A) | 2009年 11月 5日 | |
| Application note | TMS37157 Passive Low-Frequency Interface IC Performance With Neosid Antennas (Rev. A) | 2013年 4月 19日 | ||
| Application note | Low-Power Battery-Less Wireless Temperature and Humidity Sensor for TMS37157 | 2011年 12月 19日 | ||
| Application note | Using the SPI Library for TMS37157 | 2011年 12月 19日 | ||
| Application note | Communicating With the RFID Base Station | 2011年 9月 21日 | ||
| Application note | Low-Frequency RFID in a Nutshell | 2011年 9月 21日 | ||
| Application note | LF HDX System Parameter Calculation for TMS37157 (PaLFI) | 2010年 7月 15日 | ||
| More literature | eZ430-TMS37157 Development Tool FAQ (Rev. A) | 2010年 3月 15日 | ||
| Product overview | MSP430 Ultra-Low-Power MCUs and TI-RFid Devices | 2009年 4月 3日 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RSA) | 16 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。