MAX32666 Low-Power Arm® Cortex®-M4 Microcontroller with FPU

Analog Devices' MAX32666 is an advanced system-on-chip (SoC) microcontroller featuring an Arm® Cortex®-M4 with FPU CPU for efficient computation of complex functions and algorithms with integrated power management. It also includes Bluetooth® 5 Low Energy (BLE) radio with high throughput (2 Mbps) and Analog Devices' best-in-class hardware security suite trust protection unit (TPU).

MAX32666 is a breed of low-power microcontrollers named DARWIN, which are built to thrive in the rapidly-evolving Internet of Things (IoT). They are smart, with the biggest memories in their class and a massively scalable memory architecture. They run forever, thanks to wearable-grade power technology, and are durable enough to withstand the most advanced cyberattacks. DARWIN microcontrollers are designed to run any application imaginable in places where a user would not dream of sending other microcontrollers.

These devices offer large onboard memory with 1 MB Flash and up to 560 KB SRAM that can be configured as 448 KB SRAM with error correction coding (ECC). Split Flash banks of 512 KB each support seamless over-the-air upgrades, adding an extra degree of reliability. Memory scalability of data (SRAM) and code (Flash) space is supported by two SPI execute-in-place (SPIX) interfaces. Generation UB microcontrollers are designed to handle the increasingly complex applications demanded by today's advanced battery-powered devices and wirelessly-connected devices while providing robust hardware security and Bluetooth 5 Low Energy radio connectivity.

Multiple high-speed interfaces are supported, including HS-USB, secure digital interface (SD, SDIO, MMC, SDHC, and microSD), SPI, UART, and I²C serial interfaces, and an audio subsystem supporting PDM, PCM, I²S, and TDM interfaces. An 8-input, 10-bit ADC is available to monitor analog inputs from external sensors and meters. The devices are available in 109-bump WLP (0.35 mm pitch) and 121-bump CTBGA (0.65 mm pitch).