A31L213RL

The A31L213RL from Abov is an ultra-low power 32-bit microcontroller based on the ARM Cortex‑M0+ core, optimized for cost-sensitive embedded control applications. It combines a compact memory footprint with a wide set of on-chip peripherals to support metering, access control, IoT endpoints and portable devices.

With a 32 MHz core, 64 KB Flash, 20 KB SRAM and integrated analog, security and display peripherals, the A31L213RL delivers system-level integration, low-power modes and fast wake-up for battery- and energy-conscious designs.

Key Features

• Core  ARM Cortex‑M0+ 32‑bit core running up to 32 MHz for efficient control and deterministic embedded processing.
• Memory  64 KB internal Flash program memory, 4 KB data Flash and 20 KB SRAM plus a 32‑byte backup register for state retention.
• Analog  12‑bit A/D converter with 16 channels and up to 1 MSPS throughput, plus an on-chip temperature sensor and two comparators for sensor interfacing and monitoring.
• Interfaces  Multiple serial connectivity including 2× USART, 1× UART, 2× LPUART, 3× I2C (up to 1 Mbps), 4× SPI (up to 16 Mbps) and Smart Card interface for versatile peripheral integration.
• Display  Built-in LCD driver supporting up to 27×8 segments on the 64‑LQFP package, with 16‑step contrast control and resistor/cap bias options for direct segment display control.
• Security & RNG  Hardware AES‑128 engine and true random number generator (RNG) for on‑chip cryptographic acceleration and entropy source.
• DMA & Timers  Seven DMA channels and multiple timers (nine general‑purpose timers with PWM, capture and periodic modes) to offload CPU and support real‑time control.
• System Reliability  Power-on reset (POR), low-voltage reset/interrupt (LVR/LVI), clock monitoring and a 24‑bit watchdog timer for robust system supervision.
• Low Power  Ultra-low power modes including sleep and deep‑sleep with real‑time clock retention: 90 μA/MHz in RUN, 0.99 μA DEEP SLEEP with RTCC + retention, 0.35 μA DEEP SLEEP with power control and 45 nA shutdown (DEEP SLEEP mode 3). Wake‑up time is approximately 5 μs.
• Clock & Debug  Internal RC oscillator plus external oscillator support and a Serial Wire Debug (SWD) interface for development and system clock flexibility.
• Package & I/O  64‑pin LQFP package with 57 general‑purpose I/O pins and an extended operating temperature range of −40 °C to +105 °C.

Typical Applications

• Smart Meters  Precision ADC, low power and integrated security make the device suitable for metering and energy-monitoring endpoints.
• Smart Card Readers  Smart Card interface, secure AES engine and RNG support secure transaction and authentication functions.
• Door Locks & Building Control  Low power modes, multiple UART/I2C/SPI interfaces and real‑time clock support access control and building automation tasks.
• IoT Devices & Wireless Sensor Nodes  Compact memory, multiple serial interfaces and ultra‑low sleep currents enable battery-operated sensor and IoT gateway designs.
• Portable Healthcare & Consumer Electronics  Integrated ADC, LCD driver and low power consumption support portable instrumentation and consumer interfaces.

Unique Advantages

• Highly integrated peripheral set: On‑chip ADC, LCD driver, multiple serial buses, AES and RNG reduce external components and simplify BOM.
• Low‑power operation with fast wake-up: Sub‑microamp deep‑sleep currents and ~5 μs wake-up time enable long battery life without sacrificing responsiveness.
• Security-ready: Hardware AES‑128 and true RNG provide on‑chip cryptographic capability for secure communication and data protection.
• Flexible connectivity: Multiple USART/UART/LPUART channels, SPI and I2C ports support a wide range of peripheral and host interfaces.
• Rich timing and DMA resources: Nine general‑purpose timers and seven DMA channels let developers implement complex control and data‑movement tasks with minimal CPU overhead.
• Industrial temperature and compact package: −40 °C to +105 °C operation in a 64‑LQFP package with 57 I/Os fits constrained mechanical designs and extended environmental requirements.

Why Choose A31L213RL?

The A31L213RL balances efficient 32‑bit processing with a comprehensive set of integrated peripherals to address cost‑sensitive embedded applications that require low power, secure operation and diverse I/O. Its combination of Flash, data Flash and SRAM, together with ADC, LCD support, hardware security and flexible serial interfaces, lets designers consolidate functionality on a single device and reduce system complexity.

This device is well suited for designers building metering, access control, IoT endpoints and portable consumer/healthcare products who need a reliable, feature-rich microcontroller with focused power management and a compact 64‑LQFP footprint. Long-term value comes from integration that reduces BOM, multiple power modes for battery life extension and hardware features that simplify common embedded tasks.

Request a quote or submit an inquiry to receive pricing and availability for the A31L213RL. Our team will respond with technical and commercial details to support your evaluation and design-in process.