LPC2103 Replacement with more memory

[joesanford]

We use the LPC2103 microcontroller in our system. Our system currently requires several AD inputs as well as the digital communication pins. Is there a viable replacement available that would meet our needs as well as provide more memory? Ideally, it would have the same package size, number of inputs and communication channels. I have searched the online parts listing and the other members of the LPC family don't seem to offer the needed specifications. Thank you for your help as we work on upgrading our product!

[CarlosCasillas]

Hi,

There is an application note for migrating from LPC2xxx to a LPC17xx devices. You could refer to AN10878 at the following link:
https://www.nxp.com/docs/en/application-note/AN10878.pdf

However, the direct pin-to-pin replacements are for LPC2300/2400. In case of the LPC2103, which has up to 32KB Flash and 8KB RAM, a low-cost replacement with same package (but no same pin distribution) and similar peripherals doubling the memory (up to 64KB Flash and 16 KB RAM) could be the LPC84x, based on ARM Cortex M0+ at 30 MHz:
https://www.nxp.com/products/microcontrollers-and-processors/arm-based-processors-and-mcus/lpc-corte...

In case of looking for a more performance MCU, you could take a look at LPC5410x MCUs, based on Cortex M4 core at 100MHz (with optional secondary Cortex M0+ core), similar peripherals, up to 512KB Flash and up to 104KB RAM, available on LQFP64 package:
https://www.nxp.com/products/microcontrollers-and-processors/arm-based-processors-and-mcus/lpc-corte...

Hope this will be useful for you.
Best regards!
/Carlos
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[joesanford]

Thank you!

That is very helpful.

On Thu, Oct 19, 2017 at 5:34 PM, CarlosCasillas <admin@community.nxp.com>