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Analog Devices / Maxim Integrated MAX32690 Ultra-Efficient Microcontrollers (MCUs) are advanced system-on-chips (SoCs) featuring an Arm® Cortex®-M4F CPU, the latest generation BLUETOOTH® 5.2 Low Energy (LE) radio, and large flash and SRAM memories. These devices unite processing horsepower with the connectivity required for IoT applications. The MAX32690 MCUs operate within a -40°C to +105°C temperature range, ideal for industrial environments. All devices are available in a 68-lead TQFN-EP (0.40mm pitch) package and a 140-bump WLP (0.35mm pitch) package.
The BLUETOOTH 5.2 Low Energy (LE) radio supports multiple modes, including Mesh, angle of arrival (AoA), and angle of departure (AoD) for direction finding, long-range (coded), and high-throughput. LE Audio hardware implemented with the software codec is provided separately. Freeing the programmer from BLUETOOTH LE interrupt latency concerns, a RISC-V core optionally handles timing-critical controller tasks.
A Cryptographic Toolbox (CTB) provides advanced security features, including a Modular Arithmetic Accelerator (MAA) for quick Elliptic Curve Digital Signature Algorithm (ECDSA), Advanced Encryption Standard (AES) Engine, TRNG, SHA-256 hash, and secure boot loader. Internal code and SRAM space expand off-chip through two quad-SPI execute-in-place (SPIXF and SPIXR) interfaces up to 512MB each.
The Analog Devices / Maxim Integrated MAX32690 includes multiple QSPI, UART, CAN 2.0B, and I2C serial high-speed interfaces, plus one I2S port for connecting to an audio codec. All interfaces support efficient DMA-driven transfers between the peripheral and memory. A 12-input (8x external), 12-bit SAR ADC samples analog data at up to 1Msps.
