树莓派，公开销售MCU

Core Viewpoint - Raspberry Pi has launched the RP2350 microcontroller, which features significant improvements in performance, security, and power efficiency compared to its predecessor, the RP2040 [1][2][3]. Pricing and Availability - The RP2350A (7×7 QFN60) is priced at $1.10 per unit, while the RP2350B (10×10 QFN80) is priced at $1.20 per unit. Bulk purchases significantly reduce the price, with the RP2350A available for $0.80 per unit when buying 3,400 units [1][2]. - The RP2354A and RP2354B models, which will include 2MB stacked flash memory, are in the final stages of development and testing, with plans for mass production later this year [1][5]. Technical Specifications - The RP2350 integrates dual Arm Cortex-M33 processors running at 150MHz, supporting floating-point operations and DSP, along with a security model based on Arm TrustZone [3][4]. - The microcontroller features enhanced power efficiency, with the ability to reduce power consumption to less than one-tenth of the previous model when in low-power mode [3][4]. Design Improvements - The RP2350 replaces the voltage regulator with a more efficient converter, allowing for higher peak current delivery and improved efficiency in low-power modes [4]. - The design retains many elements from the RP2040, allowing for quicker integration and development while also introducing new features such as OTP and core power regulation [5].