RFID Tag Chips: Memory, Sensitivity, and Security Features
Working record — September 20, 2026

Guide: https://yenra.com/rfid-integrated-circuits/

Purpose: Translate a tag-chip data sheet into requirements for memory, encoding, authentication and finished-tag validation.

Instructions
Work through the steps below with representative evidence. Mark unresolved fields explicitly. Retain source revisions and test records; do not store credentials or sensitive account information in this file.

1. Record application, exact part/revision/data-sheet date, finished inlay/label and required reader operations.
Notes / evidence:

2. Define EPC encoding and bit length; TID requirement; user fields, formats and bits; control/password/lock requirements.
Notes / evidence:

3. Compare read and write sensitivity with units and conditions, optional commands, authentication and software support.
Notes / evidence:

4. Example only: a 96-bit EPC plus 32-bit user requirement needs separate capacity; 32 bits = 4 bytes. Verify actual part configuration.
Notes / evidence:

5. Test final labels on representative goods; record read/write verification, errors, handling conditions and retest triggers. Use controlled test tags for locks; never store secret keys in this record.
Notes / evidence:

Decision / result:

Open issue | Owner | Next action | Due date:

Reviewed by / date:

Source references (check current versions)
https://www.nxp.com/products/rfid-nfc/ucode-rain-rfid-uhf:MC_50483
https://www.nxp.com/products/rfid-nfc/ucode-rain-rfid-uhf/ucode-7xm-1k-7xm-2k-and-7xm-plus:SL3S1004_1014