AT32F435RGT7

Introduction

AT32F435RGT7 is a high-performance 32-bit microcontroller launched by ArteryTek, belonging to the AT32F435 series of ultra-efficient microcontrollers. It is built around a powerful Arm® Cortex®-M4F core, featuring a single-precision floating-point unit (FPU) and a digital signal processing (DSP) instruction set. Supported by ArteryTek's proprietary sLib (Super Library) accelerator, it operates at a maximum frequency of 288 MHz with a computing power exceeding 600 DMIPS.

The chip integrates 1MB of on-chip Flash and 384KB of on-chip SRAM, housed in a 64-pin LQFP (10×10mm) package. It operates over an extended industrial temperature range of -40°C to +105°C. It provides rich connectivity options, including Dual Quad-SPI (QSPI), Dual USB Full-Speed (FS) OTG transceivers, Ethernet, an SDRAM controller, and a Camera interface, making it ideal for high-performance embedded applications requiring rich peripherals and flexible memory expansion.

Key Features

Core & Performance

• 32-bit Arm® Cortex®-M4F Core: Equipped with a single-precision Floating-Point Unit (FPU), Memory Protection Unit (MPU), and a full Digital Signal Processing (DSP) instruction set.
• High Frequency: Up to 288 MHz operation with computing power exceeding 600 DMIPS, capable of handling complex algorithms.
• ArteryTek sLib Accelerator: Optimizes code execution to enhance performance and efficiency.
• Memory Protection Unit (MPU): Enhances system security by defining memory access permissions.
• Single-cycle DSP Instructions: Supports digital signal processing tasks such as filtering and Fast Fourier Transform (FFT).
• Floating-Point Unit (FPU): Accelerates mathematical operations in motor control and sensor processing.
• Multi-layer AHB Matrix: Provides high bandwidth for multiple peripherals operating simultaneously.

Memory Configuration

• 1MB On-chip Flash: Supports read-while-write, sector erase, and security protection.
• 384KB On-chip SRAM: For data processing and temporary storage (expandable via SDRAM controller).
• Dual Quad-SPI (QSPI): Supports external serial Flash expansion for larger storage needs.
• SDRAM Controller: Connects to external SDRAM for memory-intensive applications.
• External Memory Controller (EXMC) Interface: Supports expansion of external memories including NOR Flash, NAND Flash, and SRAM.
• 4KB Backup SRAM: Retains data during power loss.
• Flash Protection: Prevents unauthorized access and firmware modification.

Connectivity & Peripherals

• 53 General-Purpose I/O Pins: 5V tolerant, interrupt capable, with flexible pin mapping.
• Communication Interfaces:
  • 4 USARTs + 4 UARTs: Up to 36 Mbit/s, supporting ISO7816, LIN, and IrDA standards.
  • 4 SPI/I²S Interfaces: 2 full-duplex, up to 72 MHz.
  • 3 I²C Interfaces: Supports SMBus/PMBus.
  • 2 USB Full-Speed OTG: Built-in PHY.
  • 1 Ethernet MAC: 10/100 Mbps.
  • 1 CAN FD Controller: Flexible Data Rate.
• Advanced Interfaces:
  • 1 DVP (Digital Video Port): For camera connection.
  • 1 LCD Controller: Supports up to 800×600 resolution.
  • 1 SD/MMC Interface.
• Analog Peripherals:
  • 3x 12-bit ADCs: Up to 2.4 MSPS, 16 channels.
  • 2x 12-bit DACs.
  • 2x Ultra-low Power Comparators.
• Timers: Total of 18 timers, including:
  • 3 Advanced Control PWM Timers (with dead-time generation for motor control).
  • 2x 32-bit and 8x 16-bit General-Purpose Timers.
  • 2x Basic Timers.
  • 2x Watchdog Timers (Independent and Window).
  • 1x SysTick Timer.
  • 1x Enhanced Real-Time Clock (ERTC) with sub-second precision and hardware calendar.
• DMA Controllers: 2 controllers with 8 streams each to offload the CPU and increase throughput.
• CRC Calculation Unit: For data integrity verification.
• TRNG (True Random Number Generator): For secure data encryption and authentication.

Power & Packaging

• Wide Voltage Range: 2.6V to 3.6V for flexible power design.
• Low Power Modes: Sleep, Deep Sleep (typ. 3.5µA), and Standby (typ. 2.8µA) modes for optimized energy efficiency.
• Package: 64-pin LQFP (10×10mm) with an exposed thermal pad for enhanced heat dissipation.
• Temperature Range: Extended industrial range (-40°C to +105°C) for reliable operation in harsh environments.
• RoHS Compliant: Lead-free and halogen-free packaging.
• Power Consumption: 180µA/MHz in run mode, 3.5µA in deep sleep, 2.8µA in standby.

Other Features

• Enhanced Real-Time Clock (ERTC): Calendar function, alarms, sub-second precision, suitable for time-based billing.
• Hardware Watchdog: Ensures system reliability and fault recovery.
• Power Failure Comparator: Monitors supply voltage to trigger system response.
• Debug Interfaces: JTAG and SWD for easy development and debugging.
• Bootloader: Supports ISP (In-System Programming) and IAP (In-Application Programming).
• 96-bit Unique ID: For device authentication and traceability.
• Camera Interface (DVP): Supports image acquisition and processing.
• LCD Controller: Supports graphical HMI up to 800×600 resolution.

Typical Applications

• Industrial Automation: PLCs requiring high computing power and real-time response.
• HMI Systems: Graphical LCD interfaces utilizing the LCD controller and rich I/O.
• Motor Control: AC/DC drives, servo systems, and robotics requiring advanced algorithms and FPU.
• IoT Gateways & Edge Computing: Multiple connectivity options (Ethernet, USB, UART) and advanced processing.
• Medical Devices: Portable diagnostics and patient monitors requiring precise analog measurement.
• Drones & Robotics: Real-time sensor processing and complex algorithms.
• Smart Home & Building Automation: Reliable connectivity and control.
• Automotive Electronics: Body control modules and infotainment systems.
• Test & Measurement: High-speed data acquisition and processing.
• LoRa IoT Terminals: High processing power and flexible storage expansion.