TMS37157数据手册RF/IF射频/中频RFID的RFID射频接入监控IC规格书PDF

特性 Features

• 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
• 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.
• 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
• 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