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recommend a replacement for U2.
andrewschultes12

andrewschultes12

@copilot recommend a replacement for U2.
2y

copilot

The part you're seeking a replacement for, U2 (MPN: RC522), is an RFID scanner module. Here are two alternative parts you might like to consider:
  1. MFRC630 – RFID scanner module from NXP Semiconductors
    • This reader IC is a highly integrated transmitter module for contactless communication at 13.56 MHz based on the 80C51 microcontroller core supporting different card and reader/writer operating modes.
  2. PN532 – RFID/NFC module from NXP Semiconductors
    • The PN532 is a highly integrated transceiver module for contactless communication at 13.56 MHz based on the 80C51 microcontroller core. It supports 6 different operating modes: ISO/IEC 14443A/MIFARE, Reader/Writer, FeliCa Reader/Writer, FeliCa card, ISO/IEC 14443B Reader/Writer.
Both these alternatives are featureful and compatible with a wide range of operating modes. However, please verify their pin configuration and compatibility with your current design before making a decision.
2y
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