AT32F403 — mainstream MCU family in the Artery AT32 portfolio
The AT32F403 is a mainstream MCU in Artery Technology's 32-bit AT32 microcontroller portfolio. It runs at up to 200 MHz system clock, with up to 1024 KB of on-chip Flash and 96+128 (2) KB of SRAM, built around a high-efficiency ARM Cortex-M core.
The family is aimed at general-purpose control, instrumentation and consumer designs needing a balanced mix of Flash, SRAM, I/O and interfaces. Offered in LQFP14420x20 mm packaging, one design can scale across pin-count variants while keeping the core software identical.
Key specifications (manufacturer data)
| Parameter | Value |
|---|---|
| CPU frequency (MHz) | 200 |
| Int. Flash | ZW(KB), 256 |
| NZW(KB) | 0, 256, 768 |
| Total(KB) | 256, 512, 1024 |
| SRAM (KB) | 96+128 (2) |
| Timers | Advanced-control, 3 |
| 32-bitgeneral-purpose | 2 |
| 16-bitgeneral-purpose | 8 |
| Basic | 2 |
| SysTick | 1 |
| WDT | 1 |
| WWDT | 1 |
| RTC | 1 |
| Communication | I²C, 3 |
| SPI/I²S | 4/4 |
| USART+UART | 3+2 |
| SDIO | 2 |
| USB Device | 1 |
| CAN | 1 |
| Analog | 12-bit ADCnumbers/channels, 3 |
| 21 | |
| 12-bit DACnumbers/channels | 2, 2ch |
| GPIOs | 112 |
| XMC | 1 |
| SPIM | 1 ch / up to 16 MB |
| Operating temperatures | -40 to +85 °C |
| Packages | LQFP14420x20 mm |
| Ordering codes | AT32F403xxT6 |
| Flash / package variants | ZE, ZG |
Sourcing from icboms
As an independent distributor, icboms sources the AT32F403 family at competitive B2B pricing with short lead times from Shenzhen. The codes above follow Artery's ordering scheme — the 'xx' in codes such as AT32F403xxT6 stands for the flash and package variant markers. Send us the exact part number and quantity for a firm quote, MOQ and lead time.