Infineon Technologies CY9AF1A1MPMC-G-UNE2

Overview

CY9AF1A1MPMC-G-UNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 128 KB on-chip Flash, 16 KB SRAM, 12-bit ADC (16 channels, 1.0 μs conversion), 10-bit DAC (2 channels), and integrated motor control peripherals including 8-channel base timers with PWM/PPG modes. It operates up to 20 MHz and supports six low-power modes for embedded motor control and industrial sensing applications.

For engineers reviewing the CY9AF1A1MPMC-G-UNE2 datasheet, CY9AF1A1MPMC-G-UNE2 pinout, CY9AF1A1MPMC-G-UNE2 application, or CY9AF1A1MPMC-G-UNE2 equivalent, key selection criteria include Flash/SRAM size, 12-bit ADC timing and FIFO depth, dual DAC resolution, RTC calendar accuracy with leap-year support, and IGBT-mode timer features including dead-time insertion and DTIF interrupt capability.

Technical Context

This MCU implements the Arm Cortex-M3 r2p1 core with NVIC supporting 32 peripheral interrupts and 8 priority levels, plus a 24-bit SysTick timer for RTOS scheduling. Its clock system integrates five sources - two external oscillators (4–20 MHz main, 32.768 kHz sub), two CR oscillators (4 MHz high-speed, 100 kHz low-speed), and a configurable Main PLL - all supervised by Clock Supervision (CSV) for fail-safe operation.

The peripheral set targets real-time embedded control: Motor Control Timers support IGBT gate drive with dead-time generation and DC chopper waveform output; HDMI-CEC/remote receiver handles SIRCS, NEC, and CEC protocols with noise filtering; and dual watchdogs (hardware + software) provide layered fault recovery across all low-power states except Deep Standby RTC/Stop.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F103C8T6 and RL78/G14, CY9AF1A1MPMC-G-UNE2 delivers integrated motor control peripherals, calendar RTC, and protocol accelerators that reduce BOM count and firmware complexity in appliance and industrial drive applications - at the cost of higher Flash write cycles and less mature open-source toolchain support.

Availability

CY9AF1A1MPMC-G-UNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance UI, energy metering sensor nodes, and PLC I/O modules requiring stable component supply and long-term lifecycle support.

Supply support for CY9AF1A1MPMC-G-UNE2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and industrial control solutions.

This device belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-optimized, low-power embedded control in motor drives, home appliances, and industrial automation - emphasizing integrated analog peripherals and robust real-time timing.

FAQ

What is the maximum operating frequency and supported clock sources?

The CY9AF1A1MPMC-G-UNE2 operates up to 20 MHz using its Arm Cortex-M3 core. Clock sources include two external oscillators (4–20 MHz main, 32.768 kHz sub), two built-in CR oscillators (4 MHz high-speed, 100 kHz low-speed), and a configurable Main PLL. All sources are monitored by Clock Supervision (CSV) to detect failure or frequency anomaly and trigger reset or interrupt.

Does this MCU support hardware-accelerated motor control functions?

Yes. It includes IGBT-mode timer functionality with hardware dead-time insertion, DC chopper waveform generation, input capture for rotor position, A/D activation compare for synchronous sampling, and DTIF (motor emergency stop) interrupt. These features are implemented in dedicated timer blocks and require no CPU intervention during normal operation.

What are the memory resources and their access characteristics?

It integrates 128 KB of on-chip Flash memory with zero wait-state read access and 16 KB of system bus-connected SRAM. Flash includes security features for code protection. SRAM is partitioned into a single block and supports direct DMA access for ADC scan results and communication buffers, enabling efficient real-time data movement without CPU overhead.

How does the low-power architecture support battery-operated applications?

Six low-power modes - Sleep, Timer, RTC, Stop, Deep Standby RTC, and Deep Standby Stop - allow current draw as low as <1 μA in Deep Standby RTC mode while retaining RTC operation and 16-byte backup registers. Wake-up sources include RTC alarms, external interrupts, and peripheral events, enabling precise duty-cycled operation for multi-year battery life in sensor nodes.