Dual-Interface Memory for RF Memory Tag Systems

In the simplest form the RF memory tag system consists of a stand-alone memory tag with a large non-volatile storage memory (capacity in gigabits), and a reader/writer device. The reader/writer device powers the tag wirelessly during data-transfer. An RF memory tag can be also embedded into an electronic device providing wireless access to storage memory even when the device is without a battery or the battery is empty. This enables totally new applications but set also new requirements for the memory devices. In this paper we analyze the requirements and propose dual-interface memory architecture for the RF memory tag systems.