Infineon Technologies CY9BF466RPMC-G-MNK1E2

Overview

CY9BF466RPMC-G-MNK1E2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M4F microcontroller with FPU, 1024 KB MainFlash, 64 KB SRAM0, dual CAN 2.0B interfaces, and 24-channel 12-bit ADC-designed for motor control and industrial embedded systems requiring real-time precision, code security, and multi-protocol connectivity.

For engineers reviewing the CY9BF466RPMC-G-MNK1E2 datasheet, CY9BF466RPMC-G-MNK1E2 pinout, CY9BF466RPMC-G-MNK1E2 application, or CY9BF466RPMC-G-MNK1E2 equivalent, this device delivers deterministic 160 MHz operation, hardware-accelerated CRC32/CCITT CRC16, integrated DSTC for CPU-offload data movement, and deep-sleep RTC mode with VBAT support for battery-backed timekeeping.

Technical Context

The CY9BF466RPMC-G-MNK1E2 implements a full Armv7-M architecture with Memory Protection Unit (MPU), NVIC supporting 128 peripheral interrupts at 16 priority levels, and SysTick timer for RTOS scheduling. It integrates two independent Flash banks (MainFlash + 32 KB WorkFlash) with configurable wait-state acceleration up to 160 MHz.

Its peripheral set includes dual CAN controllers (1 Mbps), eight multi-function serial channels (UART/CSIO/LIN/I²C), 128-channel DSTC for descriptor-driven DMA, and dedicated motor control blocks: QPRC encoders, multi-function timers with dead-time insertion, and A/D activation compare triggers-all synchronized to a shared clock domain with sub-6.25 ns timing resolution.

Key Specifications

Pinout & Package

Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, with 5V-tolerant I/O on selected pins per "I/O Circuit Type" specification.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit Arm Cortex-M4F microcontroller applications.

Compared with STM32H743VI and RA6M5G32CB, the CY9BF466RPMC-G-MNK1E2 uniquely combines dual CAN, integrated LIN, QPRC, WorkFlash-based secure update partitioning, and external bus scramble-making it optimal for cost-constrained, safety-aware motor control and automotive body electronics where peripheral integration reduces BOM count and PCB area.

Availability

CY9BF466RPMC-G-MNK1E2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, smart energy meters, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade sourcing.

Supply support for CY9BF466RPMC-G-MNK1E2 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 management, automotive ICs, and embedded controllers, with global R&D and manufacturing infrastructure.

This part belongs to the FM4 family of Arm Cortex-M4F microcontrollers-designed specifically for real-time industrial automation, motor control, and automotive body electronics where deterministic timing, peripheral integration, and functional safety readiness are critical.

FAQ

What is the maximum operating frequency and does it require external clock conditioning?

The CY9BF466RPMC-G-MNK1E2 operates at up to 160 MHz using its internal Main PLL, which accepts 4–48 MHz external crystal input. No external clock conditioning circuitry is needed-the PLL includes built-in jitter suppression and lock detection, and the Clock Supervisor monitors oscillator stability to assert reset on failure.

How is code protection implemented across MainFlash and WorkFlash?

Both MainFlash and WorkFlash share the same security logic: write/erase protection bits are set via dedicated flash control registers, and read-out protection prevents external debugger access to Flash contents. WorkFlash's 32 KB space is physically isolated and commonly used for secure bootloader storage, enabling signed firmware updates without exposing application code.

Does the device support CAN FD or only classical CAN 2.0?

This device supports only CAN 2.0A/B (ISO 11898-1:2003) at up to 1 Mbps. It does not implement CAN FD features such as flexible data-rate, extended data length, or CRC-17/21. The CAN controllers lack FD-specific registers, bit-rate switching logic, or payload extension beyond 8 bytes per frame.

Can the external bus interface connect directly to DDR SDRAM?

No-the external bus interface supports only asynchronous SRAM, NOR Flash, NAND Flash, and SDRAM (not DDR SDRAM). It provides 8-/16-bit data width, up to 25-bit addressing, and RDY handshake, but lacks DDR-specific timing controls (e.g., DLL, auto-precharge, burst length configuration) required for DDR1/2/3 compatibility.