Infineon Technologies CY9AFAA2NPF-G-SNE1

Overview

CY9AFAA2NPF-G-SNE1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller in the FM3 family, designed for embedded motor control and industrial HMI applications. It operates up to 20 MHz, integrates 128 KB Flash and 16 KB SRAM, features an LCD controller (44×4 SEG/COM), dual 10-bit DACs, 16-channel 12-bit ADC with 1.0 µs conversion time, and supports UART/CSIO/I²C interfaces.

For engineers reviewing the CY9AFAA2NPF-G-SNE1 datasheet, CY9AFAA2NPF-G-SNE1 pinout, CY9AFAA2NPF-G-SNE1 application, or CY9AFAA2NPF-G-SNE1 equivalent, key selection criteria include its integrated motor-control timers (PPG, PWM, dead-time insertion), HDMI-CEC/remote receiver support, RTC with leap-year handling, dual watchdogs (HW/SW), and 1.8–5.5 V wide-voltage operation with 5V-tolerant I/O pins.

Technical Context

The CY9AFAA2NPF-G-SNE1 implements a full Arm Cortex-M3 r2p1 core with NVIC supporting 32 peripheral interrupts and 8 priority levels, plus a 24-bit SysTick timer for RTOS integration. Its clock system combines five sources - main oscillator (4–20 MHz), sub-oscillator (32.768 kHz), two CR oscillators (4 MHz / 100 kHz), and a configurable Main PLL - enabling robust clock supervision via CSV and low-power mode coordination.

Peripheral architecture includes a dedicated multi-function timer block with input capture (4ch), output compare (6ch), A/D activation compare (1ch), and waveform generation (3ch), alongside IGBT-mode motor control logic (dead-time, DC chopper, DTIF emergency stop). The LCDC supports segmented LCD drive with internal bias resistors (10 kΩ or 100 kΩ selectable) and frame-synchronized interrupt capability.

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are fully relocatable via port mapping registers, supporting flexible PCB layout and peripheral allocation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit motor control microcontroller applications.

Compared with STM32F303VCT6 and RL78/G14 R5F104PJSP, CY9AFAA2NPF-G-SNE1 uniquely combines Arm Cortex-M3 real-time control, integrated LCD drive, HDMI-CEC, and motor-specific timers in one die - reducing component count and firmware complexity for HMI-rich embedded motor systems.

Availability

CY9AFAA2NPF-G-SNE1 is available at Aetrix Electronics and suitable for industrial motor drives, smart appliance HMIs, energy metering gateways, and building automation sensor nodes requiring stable component supply and long-term lifecycle support.

Supply support for CY9AFAA2NPF-G-SNE1 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 industrial control solutions, with global manufacturing and R&D infrastructure.

The CY9AFAA2NPF-G-SNE1 belongs to the FM3 microcontroller product line, engineered specifically for cost-optimized, low-power embedded control applications demanding integrated analog peripherals, motor timing logic, and human-machine interface capabilities.

FAQ

What is the maximum operating frequency and supported clock sources?

The CY9AFAA2NPF-G-SNE1 runs at up to 20 MHz using its Arm Cortex-M3 core. Clock sources include an external main oscillator (4–20 MHz), 32.768 kHz sub-oscillator, built-in 4 MHz high-speed CR oscillator, 100 kHz low-speed CR oscillator, and a configurable Main PLL that accepts either the main or CR oscillator as input.

Does this MCU support hardware-based dead-time insertion for motor gate drivers?

Yes - the multi-function timer includes dedicated IGBT-mode logic with programmable dead-time insertion, DC chopper waveform generation, and DTIF (motor emergency stop) interrupt capability. This enables safe, synchronous control of high-side/low-side MOSFET or IGBT pairs without external logic.

Can the LCD controller drive common-anode or common-cathode displays?

The LCDC supports both configurations: it can be configured for 44 SEG × 4 COM (common-cathode) or 40 SEG × 8 COM (common-anode) layouts. Bias voltage pins (VV0–VV4) and internal selectable resistor values (10 kΩ or 100 kΩ) allow optimization for display contrast and power consumption.

Is the 16 KB SRAM partitioned or accessible as a single contiguous block?

The 16 KB SRAM is implemented as a single contiguous block (SRAM1) directly connected to the Cortex-M3 system bus. It supports byte/word access, is zero-wait-state at all supported frequencies, and retains data during Sleep, Timer, and RTC low-power modes - but not in Stop or Deep Standby modes unless explicitly preserved via backup register usage.