A31L123GR

The A31L123GR is an ultra‑low power microcontroller from the Abov A31L12x family, built around an ARM Cortex‑M0+ core running up to 32 MHz. It combines 64 Kbytes of internal Flash and 8 Kbytes of SRAM with a compact 28‑TSSOP package, making it suitable for battery‑operated and space‑constrained embedded designs.

Designed for applications requiring a balance of efficient processing, integrated analog and digital peripherals, and low power consumption, the A31L123GR targets smart meters, smart card readers, IoT sensor nodes and portable consumer or healthcare devices.

Key Features

• Core  ARM Cortex‑M0+ 32‑bit core operating at up to 32 MHz for efficient, deterministic embedded control.
• Memory  64 Kbytes internal Flash and 8 Kbytes SRAM with 32‑byte backup register for code storage and runtime data.
• Power and Voltage Range  Operates from 1.65 V to 3.6 V with ultra‑low power modes: 78 µA/MHz in Run, 12 µA in low‑clock Run, 1.3 µA Deep Sleep + RTCC + retention, and 0.6 µA Deep Sleep with power control. Fast wakeup time of 8 µs from power modes.
• Analog  12‑bit ADC with up to 1 Msps performance; the A31L123GR device provides 9 ADC input channels. Two onboard comparators support low‑voltage operation down to 1.65 V.
• Timers and RTC  Four general‑purpose timers plus a watchdog timer and a real‑time clock/calendar for scheduling, PWM, capture and system supervision.
• Peripherals & DMA  CRC unit (8/16/32‑bit), five DMA channels, 128‑bit unique ID and SWD debug interface enhance data integrity, transfer efficiency and development access.
• Serial Interfaces  1×USART, 1×UART, 1×Smart Card interface, 1×I2C, and 1×SPI provide flexible external connectivity and host/device communication options.
• Display & System Control  Integrated LCD driver supporting up to 8×29 segments with 16‑step contrast control, plus POR/LVR/LVI and clock monitoring for system reliability.
• Package & Temperature  28‑TSSOP (173 mil) package, surface‑mount, rated for operation from −40 °C to +105 °C.

Typical Applications

• Smart Meters  Low power consumption, integrated ADC and RTC enable long‑lived metering and data‑logging applications.
• Smart Card Readers  Smart Card interface and secure system features support card communications and transaction control.
• IoT and Wireless Sensors  Compact package, low standby currents and DMA offload allow efficient sensor interfacing and intermittent data transmission.
• Portable Healthcare and Consumer Devices  Small footprint, integrated display driver and multiple serial interfaces simplify user‑interface and peripheral integration.

Unique Advantages

• Highly integrated peripherals: A broad set of on‑chip ADC, comparators, timers, LCD driver and serial ports reduces external BOM and simplifies board design.
• Ultra‑low power profile: Multiple low‑power modes with microamp‑level standby and fast wakeup (8 µs) extend battery life in portable applications.
• Efficient data handling: DMA channels and CRC unit accelerate data transfers and integrity checks without taxing the CPU.
• Flexible connectivity: Multiple serial interfaces (USART/UART/I2C/SPI/Smart Card) support a wide range of sensors, peripherals and host links.
• Industrial temperature range: −40 °C to +105 °C operation supports deployment in temperature‑sensitive environments.
• Compact, manufacturable package: 28‑TSSOP surface‑mount package eases board routing and assembly for space‑constrained designs.

Why Choose A31L123GR?

The A31L123GR offers a practical combination of 32‑bit Cortex‑M0+ performance, 64 Kbytes Flash and 8 Kbytes SRAM with an array of integrated analog and digital peripherals tailored for low‑power embedded systems. Its feature set supports real‑time control, user interfaces, secure card communication and efficient sensor acquisition while minimizing external components.

This device is well suited to designers of battery‑powered consumer, healthcare, industrial and IoT products who need a compact footprint, flexible connectivity and measurable low‑power operation, backed by Abov’s A31L12x family architecture and development infrastructure.

Please request a quote or submit an RFQ to receive pricing, availability and lead‑time information for the A31L123GR.