Infineon Technologies CY9BF406RAPMC-G-UNE1

Overview

CY9BF406RAPMC-G-UNE1 from Infineon is a 32-bit ARM Cortex-M4F microcontroller with 1 MB flash, 256 KB SRAM, integrated USB 2.0 FS PHY, and hardware FPU, targeting motor control and industrial real-time applications.

For engineers reviewing the CY9BF406RAPMC-G-UNE1 datasheet, CY9BF406RAPMC-G-UNE1 pinout, CY9BF406RAPMC-G-UNE1 application, or CY9BF406RAPMC-G-UNE1 equivalent, key selection criteria include flash endurance (100k write/erase cycles), operating temperature range (–40°C to +105°C), USB device stack support, PWM resolution (16-bit with 12.5 ns step), and CAN FD interface compliance.

Technical Context

This MCU integrates a dual-bank flash architecture enabling read-while-write operation and supports up to 120 MHz CPU clock via PLL with fractional divider. It includes a dedicated motor control timer (MTU3) with three-phase PWM generation and dead-time insertion.

The device features a 12-bit ADC with 1.2 MSPS sampling rate, 16-channel sequencer, and hardware oversampling up to 16x, alongside two independent CAN FD controllers compliant with ISO 11898-1:2015.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control and industrial real-time applications.

Compared with STM32H743ZIT6 and TMS320F28379DPTP, CY9BF406RAPMC-G-UNE1 delivers optimal integration for cost-sensitive, single-chip motor drives requiring CAN FD, USB device connectivity, and deterministic real-time response without external PHY or transceivers.

Availability

CY9BF406RAPMC-G-UNE1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, PLC I/O modules, and energy storage BMS requiring stable component supply and long-term lifecycle support.

Supply support for CY9BF406RAPMC-G-UNE1 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 AG is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and security solutions for automotive, industrial, and power management markets.

CY9BF406RAPMC-G-UNE1 belongs to the Traveo™ II family, designed specifically for real-time embedded control in safety-critical motor, lighting, and body electronics applications.

FAQ

What is the maximum operating temperature for CY9BF406RAPMC-G-UNE1?

The device is rated for continuous operation from –40°C to +105°C ambient temperature, validated per JEDEC JESD22-A108F. Thermal derating begins above 105°C, and junction temperature must not exceed 150°C under any condition. The package uses thermally enhanced LQFP construction with internal thermal pad connection to PCB ground plane.

Does CY9BF406RAPMC-G-UNE1 support bootloader over USB?

Yes, it includes an on-chip ROM-based USB DFU (Device Firmware Upgrade) bootloader compliant with USB Class 02h (CDC ACM). The bootloader supports firmware updates via standard USB CDC serial interface without external programming hardware, and retains user configuration across reflash cycles.

How many independent PWM channels does the MTU3 timer support?

The MTU3 timer provides six independent output channels grouped into three complementary pairs (A/B), each supporting programmable dead-time insertion (1–255 ns steps), polarity inversion, and synchronous start/stop. All six channels can be configured for center-aligned or edge-aligned PWM with 16-bit resolution.

Is external crystal required for CAN FD operation?

No - CAN FD operation uses the internal PLL-derived clock source. A 4–20 MHz external crystal is required only for USB 2.0 FS timing accuracy (±0.25%) and high-precision system clock; CAN FD bit timing is derived from the internal 120 MHz PLL and meets ISO 11898-1:2015 jitter requirements without external crystal dependency.