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SL900A EPC Gen2 Sensor Tag

EPC Gen 2 sensor tag and data logger IC


  • Energy harvesting
  • Passive and semi-passive operation
  • On-chip temperature sensor
  • 9kbit EEPROM and RTC
  • Integrated shelf life algorithm


  • Provides supply for external circuitry
  • Works with or without battery
  • Enables temperature logging
  • Stores up to 841 time-stamped events
  • Provides expire date alert

Product parameters

Frequency [MHz] 860-960
Protocol EPC Gen2
Supply Voltage [V] RF field or 1.2 to 3.6
Temperature Range [°C] -40 to +125
Interface SPI (slave), analog inputs
EEPROM [kbit] 9
Features Temperature sensor -25°C to +25°C
Data Rate [kbit/s]
Package DoW (Die on Wafer)

General description

The SL900A is an EPC tag IC operating in semi-passive mode (battery-assisted passive) as well as in fully passive mode. The chip is ideal for applications using thin and flexible batteries (1.5V or 3V) for autonomous logging from the integrated temperature sensor or external sensors with time-stamp from on-chip real-time clock (RTC).

Not Recommended for New Designs
ams-OSRAM AG is discontinuing production of this device. Final lifetime buy order must be placed by April 19, 2022. Please contact your local sales representative for further information.

This product suits for the following applications:

  • Supply and cold chain
  • Tracking condition and history of constructions
  • Tire pressure monitoring systems (TPMS)
  • Contactless metering

Technical documents

Type Description Language
Datasheet Document version 1-12 English
Application Note External Sensor Interface English
Application Note RF Characteristics English
Application Note cool-Log™ Command Set English
Application Note Typical Applications English
Application Note RFID Interface Device Setup Guide English
Application Note SPI Interface English
Other Product Document RFID Logistic Management with Cold Chain Monitoring - Cold Store Case Study; World Academy of Science, Engineering and Technology, International Journal of Social, Behavioral, Educational, Economic, Business and Industrial Engineering Vol:9, No:3, 2015 English
Other Product Document Update note English
Other Product Document Monitoring and data logging English


Type Description Language
EoL Notification AS1xxx, AS25xx, AS3xxx, AS73211, AS89020, SL900A, TMD4704 (issued 2020-Dec) English
EoL Notification SL900A EoL Notification (issued Oct-19-2021) English
Product Change Notification CN24-2018 (AS252x, AS504x, SL900A) English

Other information

Type Description Language
Block Diagram SL900A Block Diagram English
Factsheet RFID with Senses English
Image SL900ADemoKit Image English
SL900 Video

Temperature Logging for Cold Chain Management

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