To designate the stages in the product development cycle, TI assigns prefixes to the part numbers of all Concerto MCU devices and support tools. Each Concerto MCU commercial family member has one of three prefixes: x, p, or no prefix (for example, xF28M36P63C2ZWTT). Texas Instruments recommends two of three possible prefix designators for its support tools: TMDX and TMDS. These prefixes represent evolutionary stages of product development from engineering prototypes (with prefix x for devices and TMDX for tools) through fully qualified production devices/tools (with no prefix for devices and TMDS, instead of TMDX, for tools).
|xF28M36...||Experimental device that is not necessarily representative of the final device's electrical specifications|
|pF28M36...||Final silicon die that conforms to the device's electrical specifications but has not completed quality and reliability verification|
|F28M36...||Fully qualified production device|
Support tool development evolutionary flow:
|TMDX||Development-support product that has not yet completed Texas Instruments internal qualification testing|
|TMDS||Fully qualified development-support product|
Devices with prefix x or p and TMDX development-support tools are shipped against the following disclaimer:
"Developmental product is intended for internal evaluation purposes."
Production devices and TMDS development-support tools have been characterized fully, and the quality and reliability of the device have been demonstrated fully. TI's standard warranty applies.
Predictions show that prototype devices with prefix of x or p have a greater failure rate than the standard production devices. Texas Instruments recommends that these devices not be used in any production system because their expected end-use failure rate still is undefined. Only qualified production devices are to be used.
TI device nomenclature also includes a suffix with the device family name. This suffix indicates the package type (for example, ZWT) and temperature range (for example, T).
For device part numbers and further ordering information of F28M36x devices in the ZWT package type, see the TI website (www.ti.com) or contact your TI sales representative.
For additional description of the device nomenclature markings on the die, see the F28M36x Concerto™ MCUs Silicon Errata.