AT32L021 Series ARM®-based 32-bit Cortex®-M0+ MCU with 16 to 64 KB Flash, sLib, 10 timers, ADC, 10 communication interfaces (1 CAN) Reference Manual
■AT32L021 series microcontrollers incorporate a 32-bit ARM®Cortex®-M0+ processor core, multiple 16- bit timers, infrared transmitter (IRTMR), DMA controller, ERTC, communication interfaces such as SPI, I2C, USART/UART, CAN bus controller, 12-bit ADC, programmable voltage monitor (PVM) and other peripherals. Cortex®-M0+ processor core supports single-cycle 16-bit/32-bit multiply accumulator (MAC).
●Core: ARM® 32-bit Cortex®-M0+ CPU
■80 MHz maximum frequency, with a Memory Protection Unit (MPU), single-cycle multiplication
●Memories
■16 to 64 Kbytes of Flash memory
■4 Kbytes of boot memory used as a Bootloader or as a general instruction/data memory (one-time-configured)
■sLib: configurable part of main Flash set as a library area with code executable but secured, non-readable
■9 Kbytes of SRAM (8 Kbytes with parity check)
●Power control (PWC)
■1.71 ~ 3.6 V power supply
■Power-on reset (POR), low voltage reset (LVR), power voltage monitor (PVM)
■Low power modes: Sleep, Deepsleep and Standby modes; 5 WKUP pins for wakeup from Standby mode
■5 x 32-bit battery powered registers (BPR)
●Clock, reset and power management
■4 to 25 MHz crystal oscillator (HEXT)
■Internal 48 MHz factory-trimmed HICK
■32 kHz crystal (LEXT)
■Low-speed internal clock (LICK)
●Analog
■1 x 12-bit 2 MSPS A/D converter, up to 15 external input channels, 12-bit/10-bit/8-bit/6-bit configurable resolution, hardware oversampling up to equivalent 16- bit resolution
■Internal reference voltage (VINTRV)
●Up to 39 fast GPIOs
■Core dedicated single-cycle GPIO bus
■All mappable on external interrupts
■Almost all 5 V-tolerant
●DMA
■1 x 5-channel DMA controller
●Up to 10 timers
■1 x 16-bit 7-channel advanced timer, including 3 pairs of complementary channels for PWM output, with dead-time generator and emergency brake
■Up to 5 x 16-bit general-purpose timers, each with 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
■1 x 16-bit basic timer
■2 x watchdog timers (general WDT and windowed WWDT)
■SysTick timer: a 24-bit downcounter
●ERTC: enhanced RTC, with alarm, subsecond precision, hardware calendar, and calibration
●Up to 10 communication interfaces
■2 x I²C interfaces (SMBus/PMBus) supporting fast mode plus (1 MHz), with wakeup from Deepsleep mode
■4 x USARTs, supporting synchronous SPI and modem control; with ISO7816 interface, LIN, IrDA and RS485 driver enable, TX/RX swap
■2 x SPIs (36 MHz), all with multiplexed half-duplex I²S;
■CAN interface (2.0B Active), with 256 bytes of dedicated buffer
■Infrared transmitter (IRTMR)
●96-bit ID (UID)
●Debug mode
■Serial wire debug (SWD) and serial wire output (SWO)
●Temperature range: -40 to +105 ℃
●Packaging
■LQFP48 7 x 7 mm
■LQFP32 7 x 7 mm
■QFN32 5 x 5 mm
■QFN32 4 x 4 mm
■QFN28 4 x 4 mm
■QFN20 3 x 3 mm
■TSSOP20 6.5 x 4.4 mm
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AT32L021 、 AT32L021 Series 、 AT32L021C8T7 、 AT32L021K8T7 、 AT32L021K8U7 、 AT32L021K8U7-4 、 AT32L021F8P7 、 AT32L021F8U7 、 AT32L021G8U7 、 AT32L021C6T7 、 AT32L021K6T7 、 AT32L021K6U7 、 AT32L021K6U7-4 、 AT32L021F6P7 、 AT32L021F6U7 、 AT32L021G6U7 、 AT32L021C4T7 、 AT32L021K4T7 、 AT32L021K4U7 、 AT32L021K4U7-4 、 AT32L021F4P7 、 AT32L021F4U7 、 AT32L021G4U7 |
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User's Guide |
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Please see the document for details |
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LQFP48;LQFP32;QFN32;QFN28;QFN20;TSSOP20 |
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English Chinese Chinese and English Japanese |
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2024.02.23 |
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Rev 2.00 |
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15.3 MB |
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