DigiKey has announced a new collaboration with STMicroelectronics and Ultra Librarian that brings tighter integration between ST’s eDesignSuite platform, Ultra Librarian’s component library, and DigiKey’s distribution network. The three-way partnership aims to create a smoother path from circuit design through to component procurement for engineers working with ST products.
STMicroelectronics’ eDesignSuite is a well-established collection of design utilities that helps engineers specify application use cases, select the right IC or discrete component, simulate circuit performance, and prepare prototypes. For NFC and RFID designers, the suite is particularly valuable because it includes dedicated antenna design calculators for 13.56 MHz systems. The NFC Inductance calculator lets users input antenna geometry values to compute expected inductance, which is critical for tuning resonance frequency. The NFC Tuning Circuit calculator goes further, providing matching network component values for ST25R series reader ICs, including the capacitor values needed for Automatic Antenna Tuning (AAT) circuits.
This matters because STMicroelectronics has built one of the most comprehensive NFC/RFID portfolios in the industry through its ST25 product family. The ST25R series of reader ICs, including the ST25R3916 and the automotive-grade ST25R3920B, support multiple protocols at 13.56 MHz including ISO 14443 Type A and B, ISO 15693, and NFC Forum standards. On the tag side, the ST25DV dynamic NFC/RFID tags offer both a 13.56 MHz RF interface and an I2C connection to a host microcontroller, making them popular choices for IoT devices, smart labels, and industrial applications.
Ultra Librarian contributes its cloud-based library of over 8 million symbols, footprints, and 3D STEP models with vendor-neutral ECAD output. Engineers can pull verified component data directly into their PCB design tools without worrying about compatibility issues. This new collaboration builds on an earlier partnership between DigiKey and Ultra Librarian announced in February 2025, which integrated DigiKey’s myLists with Ultra Librarian’s UltraBOM tool for streamlined bill of materials management.
By connecting these three platforms, the collaboration creates an end-to-end digital workflow. Engineers can simulate antenna performance and circuit behaviour in eDesignSuite, access accurate CAD models through Ultra Librarian, and source components directly from DigiKey, all without breaking their design flow. For teams working on NFC reader designs or dynamic tag implementations using ST25 devices, this integration should reduce the friction between simulation, schematic capture, and procurement.
The announcement coincides with Embedded World 2026, held March 10-12 in Nuremberg, where DigiKey showcased products and demos including STMicroelectronics’ STM32N6 platform.