Infineon Technologies CY9BF466RBGL-GK7E1

Overview

CY9BF466RBGL-GK7E1 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 operating at up to 160 MHz - deployed in motor control, industrial automation, and automotive body electronics.

For engineers reviewing the CY9BF466RBGL-GK7E1 datasheet, CY9BF466RBGL-GK7E1 pinout, CY9BF466RBGL-GK7E1 application, or CY9BF466RBGL-GK7E1 equivalent, key selection criteria include real-time motor timing (6.25 ns resolution), dual CAN bus support at 1 Mbps, integrated DSTC for CPU-offload data movement, and deep-standby RTC with VBAT backup.

Technical Context

The CY9BF466RBGL-GK7E1 implements a tightly coupled Arm Cortex-M4F core with hardware FPU and MPU, enabling deterministic floating-point computation and memory isolation for safety-critical firmware. Its dual-bank Flash architecture supports secure code protection and background reprogramming via WorkFlash (32 KB).

Peripheral integration centers on real-time control: two Multi-function Timers deliver 6.25 ns timing resolution, QPRC modules interface directly with quadrature encoders, and the DSTC controller manages 128-channel descriptor-based transfers-bypassing CPU intervention for sensor data aggregation or communication buffering.

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 and dedicated VBAT supply capability.

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 RA6M5L20GC, the CY9BF466RBGL-GK7E1 delivers unique value in deterministic motor control (6.25 ns timers + QPRC + DTIF), dual CAN 2.0B with 32-message buffers, and hardware-scrambled external bus - making it optimal for cost-sensitive industrial drives and automotive body ECUs where timing precision and bus security outweigh raw MHz.

Availability

CY9BF466RBGL-GK7E1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, smart energy meters, and factory automation I/O modules requiring stable component supply and long-term lifecycle support.

Supply support for CY9BF466RBGL-GK7E1 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, with global manufacturing and R&D infrastructure.

The CY9B460R series - now part of Infineon's FM4 portfolio - was engineered specifically for real-time embedded control in cost-sensitive industrial and automotive applications, emphasizing motor timing accuracy, CAN/LIN connectivity, and robust low-power operation.

FAQ

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

The CY9BF466RBGL-GK7E1 operates at up to 160 MHz using its internal Main PLL, which accepts 4–48 MHz external crystal input (XTAL/EXTAL). No external clock conditioner is needed - the PLL provides stable, low-jitter system clocks with dynamic frequency scaling supported via software register writes to the clock control module.

How is Flash memory protected against unauthorized read or overwrite?

Code protection is implemented via hardware lock bits in both MainFlash and WorkFlash, enforced by the Flash Security Controller. Once enabled, read-out and erase operations are blocked unless unlocked via a secure debug sequence using SWD with valid authentication keys - preventing firmware extraction or malicious reprogramming in deployed systems.

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

The CY9BF466RBGL-GK7E1 supports CAN 2.0A/B only, with bit rates up to 1 Mbps. It does not implement CAN FD features such as flexible data-rate, extended data length (up to 64 bytes), or CRC-17/21. For CAN FD requirements, Infineon's newer TRAVEO™ T2G or AURIX™ TC3xx families should be evaluated.

Can the QPRC interface handle incremental encoders with Z-index pulse for homing?

Yes - the QPRC module accepts configurable AIN, BIN, and ZIN inputs with independent edge detection settings. The ZIN signal resets the 16-bit position counter and increments the 16-bit revolution counter, enabling precise mechanical homing and multi-turn position tracking without CPU polling or interrupt latency penalties.