AT32F402 — mainstream MCU family in the Artery AT32 portfolio
The AT32F402 is a mainstream MCU in Artery Technology's 32-bit AT32 microcontroller portfolio. It runs at up to None MHz system clock, with up to 256 KB of on-chip Flash and 64+6, 96+6 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 QFN324x4 mm, QFN486x6 mm, LQFP487x7 mm, LQFP647x7 mm, LQFP6410x10 mm packaging, one design can scale across pin-count variants while keeping the core software identical.
Key specifications (manufacturer data)
| Parameter | Value |
|---|---|
| Frequency (MHz) | 216 |
| Int.Flash (KB) | 128, 256 |
| SRAM (KB) | 64+6, 96+6 |
| QSPI | 1 |
| Timers | Advanced, 1 |
| 32-bitgeneral-purpose | 1 |
| 16-bitgeneral-purpose | 7 |
| Basic | 2 |
| Systick | 1 |
| WDT | 1 |
| WWDT | 1 |
| ERTC | 1 |
| Communicationinterfaces | I²C, 3 |
| SPI | 2(1), 3 |
| I²S(half-duplex) | 2(1), 3 |
| I²F(full-duplex) | 1 |
| USART/UART | 5/2(4), 6/2 |
| CAN | 1 |
| OTGHS | - |
| OTGFS | 1 |
| IRTMR | 1 |
| Analog | 12-bit ADCnumbers/channels, 1 |
| 10 | 10, 16 |
| GPIO | 28, 40, 56 |
| Operating temperatures | -40°C ~ 105°C |
| Packages | QFN324x4 mm, QFN486x6 mm, LQFP487x7 mm, LQFP647x7 mm, LQFP6410x10 mm |
| Ordering codes | AT32F402xxU7-4, AT32F402xxU7, AT32F402xxT7, AT32F402xxT7-7, AT32F402xxT7 |
| Flash / package variants | KC, CB, CC, CB, CC, RB, RC, RB, RC |
Sourcing from icboms
As an independent distributor, icboms sources the AT32F402 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 AT32F402xxU7-4 stands for the flash and package variant markers. Send us the exact part number and quantity for a firm quote, MOQ and lead time.