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2318109_en-US
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Hi,
We are looking for a recommended substitute for the P89LPC935FDH.
Could you please suggest the best alternative that would allow for an easy hardware transition and minimal software changes?
Thank you.
Hello.
Thank you for your interest in NXP.
Unfortunately, NXP does not offer a drop‑in, pin‑compatible successor for the LPC900 series.
The P89LPC935FDH is officially discontinued, and NXP lists no direct replacement.
However, the closest device with minimal firmware porting effort and reasonable hardware modification is:
NXP LPC11xx (LPC1100) Series - LPC111x
- Small packages (TSSOP‑28, QFN‑28)
- Low‑power, inexpensive
- Peripherals comparable or superior (ADC, timers, I2C, SPI, UART)
- Easy to port 8051‑style logic into ARM Cortex‑M0
- NXP’s intended migration path from P89LPC → LPC11xx
LPC1112 / LPC1113 in TSSOP‑28 or HVQFN‑33 packages
- ARM Cortex‑M0 (fast, low-power)
- SPI, I2C, UART – all present
- 10‑bit ADC (LPC1113/14)
- GPIO count similar to LPC900
- Small packages (down to 5×5 mm QFN)
Best Regards,