1.2

Revision Identification

DAVINCI

DM357 ZWT##

x

#x-#######

DeviceRevisionCode

TMS320

Introduction

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Predictions show that prototype devices (TMX or TMP) 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.

The device revision can be determined by the device revision code marked on the top of the package. The

location of the device revision code for the ZWT package is shown in Figure 1. Figure 1 shows some

examples of the types of DM357 package symbolization.

A

Qualified devices are marked with the letters "TMS" at the beginning of the device name, while nonqualified devices

are marked with the letters "TMX" or "TMP" at the beginning of the device name.

B

"#" denotes an alphanumeric character. "x" denotes an alpha character only.

Figure 1. Example, Device Revision Codes for TMS320DM357 (ZWT)

Silicon revision is identified by a code on the chip. If x is "blank", then the silicon is revision 2.1 for TMS

devices.Table 1 lists the silicon revisions associated with each device revision code for the DM357 device.

Table 1. Device Revision Codes

Device Revision Code (x)

Silicon Revision

Comments

(blank)

2.1

TMS320DM357ZWT

TMS320DM357 DMSoC Silicon Revision 2.1

6

SPRZ285 – November 2008

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