A34M414VL

The A34M414VL is a 32-bit microcontroller based on the ARM Cortex‑M4F core, targeted at high-performance motor and power control applications. It combines a 120 MHz Cortex‑M4F processor with on-chip motor‑control peripherals, multiple 12‑bit ADC channels and security primitives to address integrated drive and control system requirements.

Designed for embedded applications that demand real‑time control and deterministic I/O, the A34M414VL offers a balance of compute performance, analog front‑end capability and communications interfaces in a 100‑LQFP surface‑mount package.

Key Features

• Core & Performance ARM Cortex‑M4F 32‑bit core with floating point unit operating at up to 120 MHz; datasheet cites up to 150 DMIPS at 120 MHz and support for flash accelerator/cache buffer.
• Memory 128 Kbytes of on‑chip Flash program memory and 32 Kbytes of RAM to host application code and runtime data.
• Motor‑Control Peripherals Two three‑phase MPWM generators providing six phase outputs (U/V/W) with 16‑bit up/down counters and multiple ADC trigger sources—optimized for three‑phase motor drive control.
• Analog Front End Three independent 12‑bit ADCs covering 24 analog input channels, plus three programmable gain amplifiers (PGA) and four comparators for precise current/voltage sensing and protection functions.
• Timers & Position Feedback Multiple timers including 16‑bit and 32‑bit timers, two Free‑Run Timers (FRT), a 32‑bit watchdog timer, and two Quadrature Encoder Interfaces (QEI) with 32‑bit counters for encoder-based motion control.
• Connectivity On‑chip serial interfaces including UART, SPI and I2C, plus additional serial resources listed in the datasheet to support host, sensor and human‑interface connections.
• System & Security AES‑128 crypto engine, CRC calculation unit with multiple CRC modes, and a true random number generator (TRNG) to support secure and reliable system functions. AES and CRC are DMA‑compatible.
• DMA & Peripheral Integration 16‑channel DMA controller with 8/16/32‑bit transfer support to offload data movement between peripherals and memory for deterministic control loops.
• Clocking & Oscillators Internal and external oscillator options with PLL supporting system clocks up to 120 MHz; includes high‑speed and low‑speed internal oscillators and external main/sub oscillators per datasheet.
• I/O, Package & Environment 89 available I/O pins in the A34M414VL part, surface‑mount 100‑LQFP package, operating voltage 2.7–5.5 V and industrial temperature range −40 to 85 °C.

Typical Applications

• Motor Drives and Inverters — Real‑time PWM generation, multiple ADC channels and comparators enable current/voltage sensing and closed‑loop motor control for brushless and three‑phase drives.
• Power Conversion — Integrated timers, ADCs and PWMs support DC‑DC converters and AC power conversion control with fast sampling and deterministic PWM timing.
• Industrial Motion Control — QEI interfaces, high‑resolution timers and DMA reduce CPU overhead for encoder feedback, position control and coordinated motion tasks.
• Smart Appliances and Robotics — Combined compute performance, analog front end and communications simplify designs that require motor control, sensor interfacing and secure boot/communication.

Unique Advantages

• Integrated motor‑control peripherals: Two three‑phase MPWM generators, multiple ADCs, PGAs and comparators reduce BOM and simplify power/motor control system design.
• High‑performance Cortex‑M4F processing: 120 MHz core with FPU and datastream acceleration delivers the compute headroom needed for control algorithms and signal processing.
• Security and data integrity on‑chip: AES‑128, TRNG and CRC units support encrypted operations and reliable data checks without burdening the CPU.
• DMA‑assisted peripheral throughput: 16‑channel DMA enables low‑latency transfers between ADCs, AES/CRC engines and memory for deterministic control loops.
• Robust industrial operating range: 2.7–5.5 V supply range and −40 to 85 °C operating temperature make the device suitable for a broad range of embedded environments.
• Scalable A34M41x family options: The A34M41x series provides a range of memory and package choices across the family (series datasheet lists higher memory/package options), enabling design scalability.

Why Choose A34M414VL?

The A34M414VL blends a 120 MHz ARM Cortex‑M4F core with dedicated motor‑control peripherals, multi‑channel ADCs and cryptographic primitives to address integrated motor, power and industrial control designs. Its combination of processing performance, per‑phase PWM capability and analog resources reduces system complexity while enabling deterministic real‑time control.

This device is well suited to engineers and teams building three‑phase drives, power conversion systems and motion‑control applications who require on‑chip security, DMA acceleration and a compact 100‑LQFP footprint for volume production and reliable operation across industrial temperature ranges.

Request a quote or contact sales to discuss pricing, lead times and how the A34M414VL can fit into your next motor or power control design.