Infineon Technologies CY9BF416NBGL-GE1

Overview

CY9BF416NBGL-GE1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 512 KB MainFlash, 32 KB WorkFlash, 64 KB SRAM, dual CAN 2.0A/B interfaces (1 Mbps), and integrated motor control peripherals including QPRC, multi-function timers, and A/D converter with 12-bit resolution and 1.0 μs conversion time at 5 V. It targets embedded motor control systems requiring real-time precision, code security, and industrial-grade reliability.

For engineers reviewing the CY9BF416NBGL-GE1 datasheet, CY9BF416NBGL-GE1 pinout, CY9BF416NBGL-GE1 application, or CY9BF416NBGL-GE1 equivalent, this device supports deterministic interrupt handling (48 peripheral + 1 NMI), Flash accelerator for zero-wait-state operation up to 72 MHz, hardware CRC32/CCITT CRC16 acceleration, and dual watchdogs - critical for safety-aware industrial firmware development.

Technical Context

The CY9BF416NBGL-GE1 implements an Arm Cortex-M3 r2p1 core operating up to 144 MHz, backed by a Memory Protection Unit (MPU) and NVIC supporting 16 priority levels. Its dual Flash architecture separates executable code (MainFlash) from configuration/data storage (WorkFlash), each with independent security and timing characteristics.

Peripheral integration includes three QPRC channels for encoder position tracking, eight base timers configurable as PWM/PPG/reload counters, and a dedicated motor control timer block with dead-time insertion, DTIF emergency stop, and A/D-triggered waveform generation - all synchronized via shared clock domains and DMA channels.

Key Specifications

Pinout & Package

This device is housed in a 120-pin LQFP package (14 mm × 14 mm, 0.4 mm pitch) with 5 V-tolerant I/O on selected pins, supporting industrial-level noise immunity and board-level compatibility with legacy 5 V peripherals.

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 RA4M1, the CY9BF416NBGL-GE1 delivers superior motor control integration via three hardware QPRCs, dual CAN, and dedicated DTIF interrupt - reducing firmware complexity and improving real-time determinism in position-critical applications.

Availability

CY9BF416NBGL-GE1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, smart power tools, and factory automation controllers requiring stable component supply, long lifecycle support, and qualified industrial temperature grade (-40°C to +105°C).

Supply support for CY9BF416NBGL-GE1 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and industrial control solutions with strong emphasis on functional safety and reliability.

This part belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-sensitive, high-performance embedded motor control applications - combining Arm Cortex-M3 efficiency with hardware-accelerated peripherals for real-time motion systems.

FAQ

What is the maximum operating frequency and how is it achieved?

The CY9BF416NBGL-GE1 operates up to 144 MHz using its main PLL, which accepts input from either an external 4–48 MHz crystal or the internal 4 MHz CR oscillator. The Flash accelerator enables zero-wait-state execution up to 72 MHz and maintains effective performance beyond that via prefetch and trace buffer optimization - verified in the Rev. *F datasheet Section 12.4.4.

Does this MCU support hardware-based quadrature decoding without firmware overhead?

Yes - it integrates three independent Quadrature Position/Revolution Counters (QPRC) with configurable edge detection on AIN/BIN/ZIN pins, 16-bit position/revolution counters, and dual compare registers. Each QPRC operates autonomously, generating interrupts on overflow or match without CPU intervention, as detailed in Section 3.3 of the FM3 Peripheral Manual.

How does the dual watchdog system enhance system reliability?

It combines a hardware watchdog clocked by the low-speed internal CR oscillator (active in all modes except Stop) and a software-configurable watchdog. This layered approach ensures fail-safe reset even during clock failure or deep-sleep transitions, meeting IEC 61508 SIL-2 requirements for industrial control - confirmed in the Clock and Reset chapter (Section 12.4.6–12.4.7).

Is the 5 V tolerance applicable to all I/O pins or only specific ones?

Only designated pins are 5 V tolerant - specifically those listed in "4.2 List of Pin Functions" of the datasheet (e.g., certain GPIO, CAN_RX, and analog input pins). Applying 5 V to non-tolerant pins may cause latch-up or permanent damage; always verify pin-by-pin in Table 4-2 before schematic design.