for further information contact your local stmicroelectronics sales office. july 2012 doc id 023375 rev 1 1/3 3 FLEX-M24LR04E 45 mm x 75 mm flexible antenna reference board for the m24lr04e-r dual interface eeprom data brief 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 m thickness pcb (kapton) ? m24lr04e-r dual interface eeprom ? connection for i 2 c bus ? energy harvesting output (v out ) with a 10 nf capacitance filtering circuit ? rf wip/busy output with 20 k 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 2 c bus on the other side. the FLEX-M24LR04E antenna allows system designers to evaluate the m24lr04e performance and capabilitie s, 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 - 3 6 - , 2 %
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