MIFARE classic write payload length

[shameerahamed]

Hi, I managed to write a NDEF message to MIFARE classic 1k tag using PN532 raspberry pi module with the help of MIFARE-classic-ndef-write example program. I cannot write full length URL because payload length is always limited to 28 bytes.

Is it set as constant in example program or limitation of mifare classic 1k tag ?

NXP taginfo