AT32F437VMT7

The AT32F437VMT7 is a premium ARM Cortex-M4 microcontroller from Artery Technology (Yatli), a leading Chinese semiconductor manufacturer specializing in STM32-compatible MCUs with enhanced specifications. Operating at an impressive 288 MHz — 71% faster than the STM32F405's 168 MHz — the AT32F437 delivers 360 DMIPS of processing power. With a massive 4MB of zero-wait-state Flash and up to 512KB of SRAM, housed in an LQFP-100 package, this chip represents a compelling high-performance alternative to STM32F4 and even some STM32F7 series MCUs at a significantly lower price point.

Artery's AT32 series is designed with STM32 ecosystem compatibility in mind: the peripheral register map, pin assignments, and development tools are intentionally similar to STM32F4 devices, making migration relatively straightforward. The AT32F437's 4MB of Flash at 288 MHz zero-wait-state is a standout specification — four times the Flash of an STM32F405 and twice that of an STM32F427, while running at significantly higher clock speed. This massive Flash capacity enables comprehensive firmware images with feature-rich autopilot stacks (ArduPilot, PX4) plus room for custom application code, logging buffers, and over-the-air update partitions.

For drone flight controllers, the AT32F437's combination of high clock speed and enormous Flash makes it particularly attractive for cost-sensitive production designs where STM32 pricing pressure is a concern. It supports Betaflight, iNav, and community-maintained ArduPilot builds. The chip's LQFP-100 package with 80 GPIO provides excellent peripheral connectivity for multiple UARTs (GPS, telemetry, RC receiver), SPI for IMU sensors, I²C for barometer/magnetometer, and CAN for distributed architectures. Its −40°C to +105°C extended temperature range provides additional thermal margin for enclosed drone electronics operating in hot climates.

Key Features

• 288 MHz Cortex-M4 with FPU and DSP (360 DMIPS) — 71% faster than STM32F405
• 4MB zero-wait-state Flash — 4× capacity of STM32F405, ample for future firmware
• Up to 512KB SRAM — generous memory for sensor fusion and data processing
• LQFP-100 with 80 GPIO — easy hand-solderable package for prototyping
• STM32-compatible peripheral map for straightforward firmware migration
• USB OTG FS + HS, 2× CAN, 2× SDIO, Ethernet MAC, camera interface
• Extended temp −40°C to +105°C — suitable for harsh drone environments

• STM32F405VGT6

  Cortex-M4 168MHz · 1MB Flash · LQFP-100 · Original STM32 reference
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• GD32F405RGT6

  GigaDevice Cortex-M4 200MHz · 1MB Flash · LQFP-64 · Alternative
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• STM32F427IIH6

  Cortex-M4 180MHz · 2MB Flash · UFBGA-176 · PX4 reference
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• STM32F765IIK6

  Cortex-M7 216MHz · 2MB Flash · UFBGA-176 · F7 performance class
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• AT32F435RGT7

  Artery Cortex-M4 288MHz · 1MB Flash · LQFP-64 · Compact AT32
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• STM32F405VGT6

  ST — Cortex-M4 168MHz · 1MB Flash · Proven ecosystem · Industry standard
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• GD32F405VGT6

  GigaDevice — Cortex-M4 200MHz · 1MB Flash · Pin-compatible alternative
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• AT32F405RCT7

  Artery — Entry AT32 · 240MHz · 256KB Flash · LQFP-64 · Budget option
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• MPU-6000

  6-Axis IMU · SPI · Standard gyro for AT32-based flight controllers
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• ICM-42688-P

  6-Axis IMU · SPI · Low-noise gyro for high-performance AT32 FC builds
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• W25Q128JV

  128Mb NOR Flash · SPI · Blackbox logging for AT32 flight controllers
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• AT7456E

  OSD overlay IC · SPI · Analog video OSD for AT32-based FC boards
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• MS5611

  Precision barometer · I²C/SPI · Altitude reference for ArduPilot/Betaflight
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• TPS5430

  3A DC-DC Buck · 5.5V–36V input · Power supply for AT32 flight controller
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