FJ8037

1、Document Description 

This document is a detailed technical manual for the NFC tag chip FJ8037. Developers can build corresponding systems based on this document. For more related technical documents, please contact Shanghai Feiju Microelectronics Co., Ltd. 

2、Product Features 

2.1 Overview 

FJ8037 is an economical high-performance contactless smart integrated circuit (IC) launched by Shanghai Feiju Microelectronics Co., Ltd. It is specially designed for applications such as retail customer cards, access control, transportation, event ticketing, and authentication. The chip features security, privacy protection, and strong resistance against attacks to achieve excellent balance. It also has the capability of activating by mobile device baseband, allowing users to perform WiFi pairing, membership joining, and more. 

2.2 RF Interface 

⚫ Data transmission complies with ISO/IEC 14443-2/-3 A standard 

⚫ Operating frequency: 13.56 MHz 

⚫ Data transfer rate: 106 kbit/s 

⚫ Supports 16-bit CRC, parity check, bit coding, and bit counting for data integrity 

⚫ Anti-collision protocol allows multiple cards in the field to operate simultaneously 

⚫ Low power design, operating distance up to 10 cm (depending on field strength and antenna geometry) 

⚫ Self-clocking, no external clock required 

⚫ Supports 7-byte UID, random UID, and optional RID, compliant with ISO/IEC 14443-3A 

⚫ Optional CMAC for data integrity protection 

⚫ Supports 128-bit AES mutual authentication 

⚫ Built-in ECC digital signature, supports self-defined and permanent locking 

⚫ Fast read command 

⚫ 50 pF input capacitance, suitable for different antenna requirements in commercial applications 

2.3 Memory Structure 

⚫ 144 bytes EEPROM for user read-only memory, organized into 36 pages, 4 bytes per page 

⚫ 4 pages of factory-programmed memory (CC), with one-time programmable (OTP) access bits 

⚫ Memory protection includes counters, lock bits, OTP bits, and CC bits 

⚫ Preprogrammed Capability Container (CC) compliant with NFC Type 2 Tag specification 

⚫ The first 16 pages are individually lockable 

⚫ From page 16 onward, each two-page group can be permanently locked 

⚫ Configurable AES authentication for read/write protection with optional retry limits 

⚫ Configurable access rights for different memory segments, suitable for internal storage 

⚫ Built-in ECC signature, supports user-defined and permanent locking 

⚫ Compliant with NFC Type 2 Tag standard 

⚫ Data retention period: 10 years 

⚫ Endurance: 100,000 write cycles