Part Number: OMAP-L138
Before our project, we used TMS320C6746 and used the TPS650061 for power supply.Now I want to upgrade the processor to OMAP-L138(456MHz). Can I replace 6746 directly with OMAP-L138 P2P? If the TPS650061 also supported ? Thank you.
OMAP-L138 and TMS320C6748 are pin compatible devices (with only difference being the ARM core in OMAP-L138), you can take a look at their reference designs and see that the LCDKs are the same.
I think that TMS320C6746 & TMS320C6748 are also pin compatible, so you should be able to just replace the device with OMAP-L138. To be sure check Section 3.6 Pin Assignments in the datasheet of both devices (TMS320C6746 and TMS320C6478).
As for the TPS650061, as long as it complies with the power-up sequence of the processor, see Section 6.3.1 Power-On Sequence of OMAP-L138 Datasheet, and matches the power consumption in your board and the Datasheet Recommended Operating Conditions., you should be able to use it.
Best Regards, Yordan
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In reply to Yordan Kovachev:
I searched for some information.TMS320C6746 work on 300MHz，the total power need is 426.93mW，OMAP-L138 work on 300MHz，the total power need is 479.73mW，I want to kown if OMAP-L138（456MHz version） work on 300MHz ，how many total power does the chip need f？
Now when I test the OMAP-L138（456MHz version） in -40℃，sometimes the OMAP138 crashes after working for a few seconds. Then I power off and restart it will be work ,I want to kown what reason caused the problem.Is it because the power is not enough?Please help ，thanks！
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