EM MicroelectronicDual-Frequency
em|echo-V
Combined EM4237 and UHF RFID inlay for asset tracking with both HF and UHF interfaces
The RFID & NFC Datasheet Library
Compare RFID and NFC chip specifications across LF, HF, UHF and dual-frequency designs. Explore manufacturer documents, engineering tools and practical selection resources from Roxtron.
RFID and NFC chip datasheets
- EM MicroelectronicDual-Frequency
EM4423
Dual-frequency NFC + UHF RAIN RFID tag IC
- EM MicroelectronicDual-Frequency
EM4425
HF ISO 15693 + UHF ISO 18000-6C, 2Kbit EEPROM
- Texas InstrumentsDual-Frequency
RF430F5978
Sub-1-GHz / LF wireless MCU with integrated 134.2 kHz transponder used in livestock and asset trackers.
Free RFID & NFC Tools
Browser calculators built on the same datasheet data. No login.
NDEF Capacity Calculator
Does your URL / vCard / Wi-Fi payload fit on an NTAG / ICODE / ST25?
UHF Read-Range Estimator
Forward-link range from sensitivity, antenna gain and an adjustable loss budget.
EPC SGTIN-96 Encoder / Decoder
24 hex characters ⇄ GTIN-14 + serial, with GS1 check-digit validation.
Chip Memory Map Visualizer
Where UID, lock bytes and user memory live on NTAG, MIFARE, T5577, ICODE.
Embeddable Comparison Widget
Copy-paste iframe of any 2-3 chips, live from our database.
RFID UID Hex and Decimal Converter
Convert RFID identifiers between hexadecimal, decimal and binary. Preserve leading zero bytes and compare normal and reversed byte order without losing precision.
RFID Memory Bits and Bytes Converter
Convert RFID chip memory between bits, bytes, words, pages, blocks, kbit and KiB. Distinguish decimal and binary units before comparing datasheets.
RF Power, EIRP and ERP Calculator
Convert dBm, milliwatts and watts. Calculate EIRP and ERP from transmitter output, antenna gain and cable loss with visible formulas.
GS1 GTIN and SSCC Check Digit Calculator
Validate or calculate the GS1 check digit for GTIN 8, UPC, EAN, GTIN 14 and SSCC. Keep leading zeros and prepare valid identifiers for EPC encoding.