As of February 2, 2026, the NXP MEMS Sensor products have been transferred to STMicroelectronics. For details on the transferred products, see this page. Please reach out to STMicroelectronics for further information.
To work with the MM9Z1J638, we recommend using CodeWarrior® for MCUs (Eclipse IDE). This version of CodeWarrior provides full support for the MM9Z1J638 device and is compatible with the RD9Z1-638-12V reference board. It includes the necessary device files, compiler support and debugging capabilities.