Raspberry Pi adds 2MB flash to RP2354

Raspberry Pi is gearing up to release an updated version of its RP2350 microcontroller, which will feature up to 2MB of flash memory integrated into the same package as the RP2354. This new development aims to enhance the capabilities of the current RP2350, which boasts 520 kB of on-chip SRAM distributed across 10 independent banks to support the two 150MHz ARM Cortex-M33 or Hazard3 RISC-V cores. Additionally, the RP2350 comes equipped with 8 kB of one-time-programmable storage (OTP) and supports up to 16 MB of external QSPI flash/PSRAM through a dedicated QSPI interface.

The integration of 2MB of flash memory into the RP2354A and RP2354B variants is expected to significantly reduce the footprint of embedded designs, offering more efficient and streamlined solutions for developers. This enhancement opens up new possibilities for a wide range of applications, from IoT devices to industrial automation systems.

According to Eben Upton, CEO of Raspberry Pi, the RP2354A and RP2354B variants are currently in the final stages of development and testing with early-access partners. The company plans to move towards mass production soon and aims to make these upgraded variants available through their Approved Reseller partners later this year. The addition of stacked flash memory is a strategic move to further empower developers and innovators in the embedded systems space.

Upton highlighted the affordability of the RP2350 microcontroller, emphasizing its sub-$1 pricing that enables seamless integration into high-volume, cost-effective end devices. A comparison with the RP2040 reveals that the RP2350 costs just ten cents more in a 7×7mm, 60-pin package (80c) or twenty cents more in a 10×10mm, 80-pin package (90c). This competitive pricing strategy aims to make advanced microcontroller technology more accessible to a broader audience.

Furthermore, Raspberry Pi has established a partnership with JLCPCB to facilitate the availability of the RP2350 through their fast-turn PCB assembly service. Upton mentioned that hundreds of unique RP2350-based designs have already been submitted for manufacturing, showcasing the growing interest and demand for this innovative microcontroller. As an incentive, JLCPCB is currently offering a $12 No-Threshold SMT Coupon for new RP2350 designs, further encouraging developers to explore the capabilities of this cutting-edge technology.

For those eager to get their hands on the RP2350n, the microcontroller is now available from approved resellers, providing an opportunity for enthusiasts and professionals alike to leverage its advanced features and performance. With the integration of stacked flash memory and a focus on affordability and accessibility, Raspberry Pi continues to push the boundaries of embedded systems technology, empowering the next generation of innovators and creators.