Proposed alternative for LPC4088

[ankitkatyal]

Hi,

We have been using LPC4088FBD208 in our designs and the product is already deployed in the field. The NXP official page shows the longevity date of December 2028.Can you recommend any suitable MCU that is pin compatible and requires minimal software change.  

[luis_maravilla]

Hello,

If you are looking for a further longevity than 2028; The MCX family is the supported recommendation as its new and have support from at least 2039 and on, Also there is an LPC option using the same package.

Here is a list for  potential upgrades from LPC4088FBD208 to MCX family and a LPC option.

MCX E24:

• -Arm Cortex M4F @112 MHz
• -Flash 1MB up to 2MB
• -SRAM Up to 256KB
• -EEPROM emulated by FlexRAM 4KB
• -Package LQFP (64/100/144) Options

MCX N947

• Cortex‑M33 @150 MHz
• -Up to 2MB Flash
• -Up to 512 KB RAM
• -Ethernet (10/100 MAC)
• -USB FS & HS
• -CAN FD x2
• -Package ( VFBGA184 / HLQFP100 / HDQFP172)

LPC540XX Family of Microcontrollers (MCUs)

The [LPC5401xJ] have Cortex M4 at 180 MHz and LQFP208 package, same as LPC4088.

Remains in Longevity Program from at least 2029 and On.

• -Arm Cortex-M4 processor, running at a frequency of up to 180 MHz.
• -Up to 360 KB total SRAM
• -On-chip memory Up to 4 MB of on-chip Quad SPI Serial Flash
• -USB FS & HS
• -Ethernet AVB
• -CAN and CAN FD
• -LCD

All could involve a minimum software migration to use MCUXpresso IDE or Visual Studio Code-MCUXpresso Extension.

Best Regards, Luis

[david74najera]

For a direct drop-in replacement with minimal software changes, the best option is the LPC4078FBD208 from NXP's same LPC407x/408x product family. It shares the exact same 208-pin LQFP footprint and ARM Cortex-M4 core, allowing you to reuse your existing board layout and codebase with little to no modification, provided your design does not heavily rely on features unique to the LPC4088 (such as the SPIFI flash interface). Alternatively, the LPC1788FBD208 matches the 208-pin package but uses an older Cortex-M3 core, meaning the LPC4078 is your closest and easiest drop-in upgrade path.