AT32F423VCT7

This microcontroller is based on an ARM 32-bit Cortex-M4 core with an integrated FPU. It offers 64KB to 256KB of flash memory, including a 20KB boot code area configurable as user area, and supports sLib (Security Library) functionality that allows a portion of the main flash to be designated as an execute-only, read-protected code security zone. Up to 48KB of SRAM is also included. The CPU integrates an MPU and operates at up to 150MHz, supporting single-cycle multiplication, hardware division, and DSP instructions. An XMC supports a 16-bit data bus for connecting PSRAM and NOR memory, and can serve as an LCD parallel interface compatible with 8080/6800 modes. Power management supports 2.4V to 3.6V supply voltage with POR, LVR, and supply voltage monitoring, along with multiple low-power modes. The clock system includes a 4 to 25MHz external crystal oscillator, a factory-trimmed 48MHz internal high-speed clock (1% accuracy at 25℃, 2.5% accuracy over -40℃ to +105℃), a 32kHz external crystal oscillator, and an internal low-speed clock. The analog section integrates a 12-bit, 5.33MSPS ADC with up to 24 external channels and hardware oversampling support, two 12-bit DACs, a temperature sensor, and an internal reference voltage. Two 7-channel DMA controllers with flexible mapping are included. Up to 87 fast GPIO pins are provided, nearly all 5V-tolerant and mappable to 16 external interrupts. Timer resources include one 16-bit 7-channel advanced timer, up to eight 16-bit and one 32-bit general-purpose timers, two 16-bit basic timers, two watchdog timers, and one 24-bit SysTick timer. The ERTC supports auto-wakeup, alarms, sub-second precision, and hardware calendar calibration. Communication interfaces include three I²C, three SPI, eight USART, two CAN, one OTG full-speed controller with on-chip PHY, and one infrared transmitter. Additional features include a CRC calculation unit, a 96-bit unique chip ID (UID), and Serial Wire Debug and JTAG debug interfaces. The operating temperature range is -40℃ to +105℃. Available packages include LQFP100, LQFP64, LQFP48, QFN48, QFN36, and QFN32.