FLEX-M24LR04E STMICROELECTRONICS | Alldatasheet
Document overview
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Technical content
Features
■ Ready-to-use flexible printed circuit board (PCB) including – 45 mm x 75 mm 13.56 MHz inductive antenna etched on the PCB – 100 µm thickness PCB (Kapton) – M24LR04E-R Dual Interface EEPROM – Connection for I 2C bus – Energy harvesting output (V OUT) with a 10 nF capacitance filtering circuit – RF WIP/BUSY output with 20 k Ω pull-up resistor, to indicate that an RF operation is ongoing
Description
The FLEX-M24LR04E antenna reference board is a ready-to-use flexible PCB that features an M24LR04E Dual Interface EEPROM IC connected to a 45 mm x 75 mm 13.56 MHz etched RF antenna on one side, and to an I 2C bus on the other side. The FLEX-M24LR04E antenna allows system designers to evaluate the M24LR04E performance and capabilities, and to get started with their design. To demonstrate the energy harvesting function, the FLEX-M24LR04E can be used in conjunction with ST DEMO-CR95HF-A demonstration board. The application can be powered directly from the M24LR04E V OUT pin. The FLEX-M24LR04E Gerber files can be downloaded from www.st.com. Figure 1. FLEX-M24LR04E block diagram
Associated firmware and PC software The FLEX-M24LR04E board is supported by a PC software, the Dual Interface EEPROM tool software, that allows to configure and control the energy harvesting. This software is available from www.st.com. Refer to application note AN3954 “Developing your own Visual Basic or C/C++ application on a DEMO-CR95HF-A demonstration board”, for how to adapt the PC software for your application.
Revision history
Table 1. Document revision history 2-Jul-2012 1 Initial release.