ST’s NFC / RFID transceiver ICs operate on the 13.56 MHz frequency band. NFC supports three different operation modes: reader/writer, card emulation, and peer-to-peer. The built-in 5V to 3.3V regulators and power MOSFETs save both cost and area on the PCB. It supports Serial Peripheral Interface (SPI) for easier firmware upgrade. The G元221 integrates a high-efficiency DMA engine for optimized data transfer performance between USB and various memory card interfaces. It also supports SDXC and Memory Stick XC high-density memory cards (capacity up to 2TB) and SD 3.0 UHS-I memory cards. It is compliant with the USB 3.0 on the host side and supports various types of SD memory cards available on the market. The G元221 is a USB 3.0 SD card reader controller with an integrated USB 3.0 Super Speed transmitter/receiver physical layer (PHY) that was developed in-house by Genesys Logic. ![]() This solution provides both high-performance memory card access and near field communication (NFC) simultaneously. Septem- Genesys Logic, Inc., a leading IC design company in mixed-signal, high-speed I/O technologies, today announced a reference design pairing its USB 3.0 card reader controller G元221 with STMicroelectronics' ST95HF NFC transceiver.
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