AT32L021 — ultra-low-power MCU family in the Artery AT32 portfolio
The AT32L021 is an ultra-low-power MCU in Artery Technology's 32-bit AT32 microcontroller portfolio. It runs at up to 80 MHz system clock, with up to 64 KB of on-chip Flash and 8+1 KB of SRAM, built around a high-efficiency ARM Cortex-M core.
The family is aimed at battery-powered instruments, wearables and remote sensors where standby current matters as much as peak throughput. Offered in TSSOP6.5 x 4.4 mm, QFN203 x 3 mm, QFN284 x 4 mm, QFN324 x 4 mm, QFN325 x 5 mm, LQFP327 x 7 mm, LQFP487 x 7 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) | 80 |
| Int. Flash(KB) | 16, 32, 64 |
| SRAM (KB) | 8+1 |
| Timers | Advanced-control, 1 |
| 16-bitgeneral-purpose | 5 |
| Basic | 1 |
| SysTick | 1 |
| WDT | 1 |
| WWDT | 1 |
| ERTC | 1 |
| Communication | I²C, 2 |
| SPI/I²S | 1/1 (2), 2/2 |
| USART | 4 (3), 4 |
| CAN | 1 |
| IRTMR | 1 |
| Analog | 12-bit ADCnumbers/channels, 1 |
| 9 | 9, 10, 11, 15 |
| GPIO | 15, 23, 27, 25, 39 |
| Operating temperatures | -40°C to +105°C |
| Packages | TSSOP6.5 x 4.4 mm, QFN203 x 3 mm, QFN284 x 4 mm, QFN324 x 4 mm, QFN325 x 5 mm, LQFP327 x 7 mm, LQFP487 x 7 mm |
| Ordering codes | AT32L021xxP7, AT32L021xxU7, AT32L021xxU7, AT32L021xxU7-4, AT32L021xxU7, AT32L021xxT7, AT32L021xxT7 |
| Flash / package variants | F6, F8, F4, F6, F8, G4, G6, G8, K4, K6, K8, K4, K6, K8, K4, K6, K8, C4, C6, C8 |
Sourcing from icboms
As an independent distributor, icboms sources the AT32L021 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 AT32L021xxP7 stands for the flash and package variant markers. Send us the exact part number and quantity for a firm quote, MOQ and lead time.