Infineon Technologies CY9AF1A2NPMC-G-SNE2

Overview

CY9AF1A2NPMC-G-SNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 128 KB Flash, 16 KB SRAM, 20 MHz max CPU frequency, 12-bit ADC (16 ch, 1.0 μs conversion), and 10-bit DAC (2 ch). It integrates motor control timers, UART/CSIO/I²C interfaces, RTC, HDMI-CEC receiver/transmitter, and six low-power modes - deployed in industrial motor drives and embedded control systems.

For engineers reviewing the CY9AF1A2NPMC-G-SNE2 datasheet, CY9AF1A2NPMC-G-SNE2 pinout, CY9AF1A2NPMC-G-SNE2 application, or CY9AF1A2NPMC-G-SNE2 equivalent, key selection criteria include Flash/SRAM size, 12-bit ADC timing, dual DAC resolution, IGBT-mode PWM dead-time support, and 1.8–5.5 V supply range compatibility with mixed-voltage I/O.

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 combines five sources - including 4–20 MHz main oscillator, 32.768 kHz sub-clock, and PLL - supervised by Clock Supervision (CSV) for fail-safe reset on external clock failure.

The peripheral set targets real-time embedded control: Base Timers (8 ch) offer 16-/32-bit reload, PPG, and PWM modes; Multi-function Timer includes input capture (4 ch), output compare (6 ch), and A/D activation triggers; HDMI-CEC block supports SIRCS/NEC/HDMI-CEC protocols with automatic header/EOM/ACK generation and arbitration-loss detection.

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 32-bit Arm Cortex-M3 microcontroller applications.

Compared with STM32F103VCT6 and RA4M1, CY9AF1A2NPMC-G-SNE2 uniquely balances 20 MHz real-time determinism, integrated HDMI-CEC, and sub-μA RTC standby - making it optimal for cost-sensitive, mixed-protocol embedded controllers where protocol acceleration reduces firmware complexity and power budget.

Availability

CY9AF1A2NPMC-G-SNE2 is available at Aetrix Electronics and suitable for industrial motor control, smart home remote interface, programmable logic controller I/O modules, and battery-powered sensor nodes requiring stable component supply and long-term lifecycle support.

Supply support for CY9AF1A2NPMC-G-SNE2 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 German semiconductor leader specializing in power management, automotive MCUs, and security solutions - formed through the acquisition of Cypress Semiconductor in 2020.

This device belongs to the FM3 family of general-purpose 32-bit microcontrollers, designed specifically for cost-optimized, low-power embedded control applications requiring mixed-signal integration, motor timing, and consumer electronics protocol support.

FAQ

What is the maximum operating frequency and supported clock sources?

The CY9AF1A2NPMC-G-SNE2 operates up to 20 MHz using five selectable clock sources: 4–20 MHz external main oscillator, 32.768 kHz sub-clock, built-in 4 MHz high-speed CR oscillator, 100 kHz low-speed CR oscillator, and Main PLL. The PLL can accept either the main oscillator or the high-speed CR as input, enabling flexible frequency synthesis while maintaining low-jitter timing for motor control loops.

Does this MCU support hardware-accelerated HDMI-CEC communication?

Yes - it integrates a dedicated HDMI-CEC transceiver with hardware protocol handling for SIRCS, NEC, and HDMI-CEC standards. It automatically generates headers, EOM, and ACK bits, detects arbitration loss, and triggers status interrupts - eliminating software bit-banging and ensuring precise timing compliance per CEC specification (IEC 62377).

How many analog-to-digital converter channels does it have, and what is their performance?

It features a 12-bit successive approximation ADC with up to 16 input channels, minimum conversion time of 1.0 μs, and dual-mode operation: scanning (16-step FIFO) and priority-based (4-step FIFO). This supports high-fidelity current/voltage sampling in motor control and sensor fusion applications without CPU intervention.

What low-power modes are available, and what is the lowest achievable current draw?

Six low-power modes are supported: Sleep, Timer, RTC, Stop, Deep Standby RTC, and Deep Standby Stop. In Deep Standby RTC mode, the device draws less than 1 μA while maintaining RTC operation from the 32.768 kHz crystal - enabled by dedicated low-leakage circuitry and retention of 16 bytes of backup register content.