ST25 NFC/RFID tags and readers

Resolved! How can I ensure that the data in the EEPROM of the ST25DV64K is updated before the ST25DV64K is ready to be read out via RFID?

Hello,I am working with the ISO15693 chip ST25DV64K for the first time.The V_EH output goes to a 1.8 V regulator and the output of the regulator supplies a microcontroller.I would like to know how can I ensure that the microcontroller first writes it...

Resolved! ST25R95 IRQ_In low pulse?

Hello ,According to the st25r95 datasheet:"After the power supply is established at power-on, the ST25R95 waits for a low pulse on the pin IRQ_IN (t1) before automatically selecting the external interface (SPI) and entering Ready state after a delay"...

Resolved! What are the differences between ST25DV04K and M24SR64-Y? Is ANT7-T-ST25DV04K compiles to FCC like ANT7-T- M24SR64-Y?

Resolved! Low power design for ST25R3911B , getting error while operating the IC at 2.8V

Hi , we have made the custom PCB for ST25R3911B with AVR AtMega328P Controller.The board works totally fine when runs at 3V3. But for low power design , when ever we try to power up the board on 2.8V , the controller resets.On debugging we have found...

Resolved! ST25R3911B-EMVCO Schematic and Binary Blob

Hi, I recently adquired a ST25R3911B-EMVCO Reference Design Board. In order to study the design I would like to have access to the Schematic. In Resources, Technical Documentation (https://www.st.com/content/st_com/en/products/evaluation-tools/produc...

Resolved! High antenna impedance evaluation of CR95HF

Hello to everyone:I am starting to evaluate and the possibility to design a transparent antenna on the glass, but I think I have an impedance problem. For example:A. I design an ITO transparent antenna and estimated the total resistor is around 15Koh...

Resolved! ST25R95 - Distance range, output power, inductor as antenna

Hi.I am developing an electronic lock using an STM32 L4 and a ST25R95 NFC transceiver.According to document "ST25_product_overview-July2018.pdf" ST25R95 is supposed to be a 230mW transceiver. I would like to know what reading distance I can reach bet...

Resolved! NFC antenna - total resistance of antenna copper traces

According to this values on eDesign Suite:What would be the resistance of the entire trace, from one edge to other, in ohms? NXP calculator gave result as 2,05 ohms on their tool. But I am here to ask what would be the actual resistance of the antenn...

Resolved! what kind of products might be fit to my purpose?

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