AT32L021 Series ARM®-based 32-bit Cortex®-M0+ MCU with 16 KB to 64 KB Flash, sLib, 10 timers, 1 ADC, 10 communication interfaces (1 CAN) Datasheet
■The AT32L021 series is based on the high-performance ARM®Cortex® -M0+ 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex® -M0+ core features a memory protection unit (MPU) for application security. The device also offers a hardware divider (HWDIV) to improve computing efficiency as there is no divider in the Cortex® -M0+ core.
■The AT32L021 series incorporates high-speed embedded memories (up to 64 Kbytes of internal Flash memory and 8+1 Kbytes of SRAM), and a wide range of enhanced GPIOs and peripherals connected to two APB buses. Any block of the embedded Flash memory can be protected by the “sLib”, functioning as a security area with code-executable only.
■The AT32L021 series offers one 12-bit ADC, five general-purpose 16-bit timers, one advanced timer and one low-power ERTC, as well as standard and advanced communication interfaces: up to two I²C interfaces, two SPIs (all multiplexed as I²S), four USARTs, one CAN and one infrared transmitter.
■The AT32L021 series operates in the -40 to +105 ℃ temperature range, from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power application.
■The AT32L021 offers devices in different package types. They are fully pin-to-pin, software and functionally compatible throughout the AT32L021 series, except that their peripheral configurations are not totally the same depending on the package type chosen.
●Features
■Core: ARM® 32-bit Cortex®－M0+ CPU
▲80 MHz maximum frequency, with a memory protection unit (MPU), single-cycle multiplication
■Hardware divider
■Memories
▲16 to 64 KB of internal Flash memory
▲4 Kbytes of boot memory as a Bootloader, or as a general instruction/data memory (one-time-configurable)
▲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 to 3.6 V power supply
▲Power-on reset (POR), low voltage reset (LVR) and power voltage monitoring (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 and reset management (CRM)
▲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; 12/10/8/6-bit configurable resolution; hardware over-sampling up to equivalent 16-bit resolution
▲Internal reference voltage (VINTRV)
■DMA
▲1 x 5-channel DMA controller
■Up to 39 fast GPIOs
▲Core dedicated single-cycle GPIO bus
▲All mappable on 16 external interrupts (EXINT)
▲Almost all 5 V-tolerant
■Up to 10 timers (TMR)
▲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 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 accuracy, 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
▲2 x SPIs (36 MHz), both with multiplexed as half-duplex I²S
▲4 x USARTs, supporting master synchronous SPI and modem control; with ISO7816 interface, LIN, IrDA, RS-485 driver enable; TX/RX swap; with wakeup from Deepsleep mode
▲CAN (2.0B Active) with 256 Kbytes of dedicated buffer
▲Infrared transmitter (IRTMR)
■CRC calculation unit
■96-bit unique ID (UID)
■Serial wire debug (SWD) interface
■Operating temperature: -40 to +105 ℃
■Packages
▲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 Series 、 AT32L021 、 AT32L021C8T7 、 AT32L021K8U7 、 AT32L021G8U7 、 AT32L021F8P7 、 AT32L021C6T7 、 AT32L021K6U7 、 AT32L021G6U7 、 AT32L021F6P7 、 AT32L021C4T7 、 AT32L021K4U7 、 AT32L021G4U7 、 AT32L021F4P7 、 AT32L021K8T7 、 AT32L021K8U7-4 、 AT32L021F8U7 、 AT32L021K6T7 、 AT32L021K6U7-4 、 AT32L021F6U7 、 AT32L021K4T7 、 AT32L021K4U7-4 、 AT32L021F4U7 、 AT32L021xxP7 、 AT32L021xxU7 、 AT32L021xxU7-4 、 AT32L021xxT7 |
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Datasheet |
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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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2024.1.10 |
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Rev. 2.00 |
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4.1 MB |
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