EM4325 vs UCODE G2iL / G2iL+

Choose EM4325 if you need sensor integration capabilities with RFID tracking. The EM4325 provides a dedicated sensor interface for connecting external sensors, making it suitable for cold-chain monitoring, environmental sensing, or condition-aware logistics. It offers 512 bits of user memory for storing sensor data alongside the standard 128-bit EPC and 64-bit TID. Operating across 860–960 MHz, it complies with EPC Class-1 Generation-2 and ISO/IEC 18000-6C protocols. Security includes standard 32-bit access and kill passwords with EPC Gen2 security features. The sensor interface capability differentiates this chip for applications requiring real-time or historical environmental data collection during transit or storage. Choose UCODE G2iL or G2iL+ if you prioritize enhanced security features and tamper detection over sensor integration. The G2iL series operates from 840–960 MHz and implements EPC Gen2 v1.2.0 with advanced security including bank-wise read protection for EPC and TID memory, Real Read Range Reduction (4R privacy mode) for consumer privacy, and Product Status Flag. The G2iL+ variant adds Tag Tamper Alarm for detecting physical tampering and an optional external supply mode via VDD pin for powering external circuits. Memory configuration includes 128-bit EPC, 64-bit TID with 32-bit unique serial number, and standard 32-bit access/kill passwords with 20-year data retention. These chips lack the 512-bit user memory and sensor interface of the EM4325 but compensate with superior anti-counterfeiting and privacy features suited for brand protection, pharmaceuticals, and privacy-sensitive retail applications.