AT32F407VGT7

ARM 32-bit Cortex-M4F microcontroller + FPU, with 256 KB to 1024 KB internal flash, sLib, USB, Ethernet, 17 timers, 3 ADCs, and 21 communication interfaces. Core: ARM 32-bit Cortex-M4F CPU with FPU, up to 240 MHz operating frequency, memory protection unit (MPU), single-cycle multiplication and hardware division, built-in FPU, DSP instruction set.

Key features

• Internal flash program/data memory from 256 KB to 1024 KB
• sLib: designates a specified main flash region as a secure executable-only library; code in this region can be called but not read
• SPIM interface: additional external SPI flash program/data memory interface up to 16 MB
• Up to 96 + 128 KB SRAM
• External memory controller (XMC) with 2 chip selects, supporting NOR/PSRAM and NAND memory with multiplexed signals
• Parallel LCD interface, compatible with 8080/6800 modes
• 2.6 to 3.6 V supply and I/O pins
• Power-on/power-down reset (POR/PDR), programmable voltage detector (PVD)
• 4 to 25 MHz crystal oscillator
• Built-in factory-trimmed 48 MHz RC oscillator (1% accuracy at 25°C, 2.5% accuracy over -40°C to +105°C) with automatic clock calibration (ACC)
• Built-in calibrated 40 kHz RC oscillator
• 32 kHz crystal oscillator with calibration
• Sleep, stop, and standby modes
• VBAT supply for RTC and 42 × 16-bit backup registers
• 3 × 12-bit ADCs, 0.5 μs conversion time (up to 16 input channels)
• Conversion range: 0 to 3.6 V
• Triple sample-and-hold capability
• Temperature sensor
• 2 × 12-bit DACs
• 14-channel DMA controller supporting: timers, ADC, DAC, SDIO, I2S, SPI, I2C, and USART
• Serial wire debug (SWD) and JTAG interface
• Cortex-M4F embedded trace module (ETM)
• 51/80 multifunctional bidirectional I/O pins; all I/Os mappable to 16 external interrupts; almost all I/Os 5 V tolerant
• All I/Os are fast I/Os with register access up to fAHB
• Up to 8 × 16-bit timers + 2 × 32-bit timers, each with up to 4 channels for input capture/output compare/PWM or pulse counting, and incremental encoder input
• Up to 2 × 16-bit advanced PWM timers with dead-time control and emergency brake for motor control
• 2 watchdog timers (independent and windowed)
• SysTick timer: 24-bit down counter
• 2 × 16-bit basic timers for DAC drive
• Up to 3 I2C interfaces (SMBus/PMBus support)
• Up to 8 USART interfaces (ISO7816, LIN, IrDA, and modem control support)
• Up to 4 SPI interfaces (50 Mbit/s); all 4 can be multiplexed as I2S interfaces, with I2S2/I2S3 supporting full-duplex
• Up to 2 CAN interfaces (2.0B active)
• USB 2.0 full-speed device interface with crystal-less support
• Up to 2 SDIO interfaces
• 10/100M Ethernet MAC with dedicated DMA and 4 KB SRAM, IEEE 1588 hardware support, MII/RMII interface
• CRC calculation unit, 96-bit unique chip ID