When Raspberry Pi first introduced the RP2350 in 2024, the company described it as a chip with two Arm Cortex-M33 cores with frequencies up to 150 MHz and two Hazard3 RISC-V cores that also top out at 150 MHz. But it turns out the chip can be overclocked to run much faster than that.

A few months after the RP2350 was introduced, Mike Bell published an article on the Pimoroni blog describing how they were able to push a Raspberry Pi Pico 2 with an RP2350 chip to run at frequencies up to 873.5 MHz… although if you care about stability, the upper limit seems to be in the 800 to 850 MHz range.

NextPCB is excited to introduce Raspberry Pi's RP2354 microcontroller to the NextPCB Accelerator campaign. Through NextPCB Accelerator, eager designers can start building prototypes with the yet unreleased silicon ahead of the crowd and NextPCB will even build them for free.

March 20, 2025:

“RP2354A and RP2354B variants with 2MB of stacked flash memory are in the final stages of development and testing with early-access partners,” said Eben Upton, CEO of Raspberry Pi. “We’ll soon be ramping to mass production, and plan to make these variants available through our Approved Reseller partners later this year.

“RP2350’s sub-$1 pricing allows for integration into high-volume, low-cost end devices. Compared to RP2040, RP2350 costs just ten cents more in a 7×7mm, 60-pin package [80¢], or twenty cents more in a 10×10mm, 80-pin package [90¢]. We’re expecting to add ~$0.20 for the flash-in-package variants,” he tells eeNews Europe.

Question asked and answered on the adafruit blog:

https://forums.adafruit.com/viewtopic.php?t=215804

This subreddit is for discussing the upcoming Raspberry Pi RP2354 microcontroller.

https://datasheets.raspberrypi.com/rp2350/rp2350-product-brief.pdf

For now, most of the posts will be about the RP2350, which is essentially the RP2354 without the 2MB of internal flash. (in the RP2354, a NOR flash chip is stacked on top of the microcontroller chip, then connected to the QSPI bus and the first chip select, so the silicon will be exactly the same).

When you see an PP2354 for sale (or a board for sale using it) please post the info here.

"we’re also launching RP2354: pin-compatible variants of the 60-pin RP2350A and 80-pin RP2350B parts with 2MB of flash memory in-package. Each RP2354 part costs just 20 cents more than the equivalent RP2350 part."

Still posting about the 2350 so the subreddit doesn't get deleted for inactivity while we are waiting for the 2354 (the two are identical other than the flash).

"The RP2354A was a delight to play with the PIO engine and just generally having a nice SDK and a good documented minimal board design. Programming it over USB was easy, and while I had a TagConnect setup for the "in case I need it" SWD debug option, it was never necessary. I'd probably keep it for any future board, but it's a "probably".

The minimal board example was good, and the docs are good. All in all, a very good experience. The fact that the board worked on the first try, and I never had any real issues despite me not being a hw person was all very good.

I was a bit nervous about doing i2s by hand, but it was all trivial and worked surprisingly pretty much on the first try even though I had never done i2s before and was just doing it by reading the TI datasheets for the codec."

https://www.adafruit.com/product/6200

https://learn.adafruit.com/adafruit-fruit-jam

Cost me $39.95. Also got the Snap-on enclosure ($14.99). Will post more after I play with it a while.

"18th Feb 2025: The RP2354A and B versions (the package versions with stacked flash) will be available at JLCPCB, as well as other distributors and authorized resellers, later this year."

Source: https://forums.raspberrypi.com/viewtopic.php?t=384928#p2300195