TMS37157
Dispositivo de interfaz pasiva de baja frecuencia (PaLFI) con EEPROM e interfaz de transpondedor de
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.
Soporte de diseño limitado de TI disponible
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Documentación técnica
| Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | Passive Low Frequency Interface Device With EEPROM and 134.2 kHz Transponder datasheet (Rev. A) | 05 nov 2009 | |
| Application note | TMS37157 Passive Low-Frequency Interface IC Performance With Neosid Antennas (Rev. A) | 19 abr 2013 | ||
| Application note | Low-Power Battery-Less Wireless Temperature and Humidity Sensor for TMS37157 | 19 dic 2011 | ||
| Application note | Using the SPI Library for TMS37157 | 19 dic 2011 | ||
| Application note | Communicating With the RFID Base Station | 21 sep 2011 | ||
| Application note | Low-Frequency RFID in a Nutshell | 21 sep 2011 | ||
| Application note | LF HDX System Parameter Calculation for TMS37157 (PaLFI) | 15 jul 2010 | ||
| More literature | eZ430-TMS37157 Development Tool FAQ (Rev. A) | 15 mar 2010 | ||
| Product overview | MSP430 Ultra-Low-Power MCUs and TI-RFid Devices | 03 abr 2009 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| VQFN (RSA) | 16 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.
Soporte y capacitación
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.
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