To designate the stages in the product development cycle, TI assigns prefixes to the part numbers of devices. Each device has one of three prefixes: X, P, or null (no prefix) (for example, TMS3705).

Device development evolutionary flow:

X and P devices are shipped against the following disclaimer:

"Developmental product is intended for internal evaluation purposes."

Production devices 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 (X or P) have a greater failure rate than the standard production devices. TI 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, D). Figure 11-1 provides a legend for reading the complete device name.

For orderable part numbers of TMS3705 devices in the D package types, see the Package Option Addendum in Section 12, the TI website, or contact your TI sales representative.

Figure 11-1 Device Nomenclature