Infineon Technologies CY9BF412NPQC-G-JNE2

Overview

CY9BF412NPQC-G-JNE2 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 up to 1 Mbps, and 12-bit ADC with 1.0 μs conversion time at 5 V. It targets motor control, industrial automation, and automotive body electronics where real-time timing, multi-protocol serial communication, and on-chip memory security are required.

For engineers reviewing the CY9BF412NPQC-G-JNE2 datasheet, CY9BF412NPQC-G-JNE2 pinout, CY9BF412NPQC-G-JNE2 application, or CY9BF412NPQC-G-JNE2 equivalent, this page delivers verified technical context, package mapping to LQFP-120, confirmed peripheral integration (CAN, LIN, UART, I²C, CSIO), and validated alternative options for FM3-series migration paths.

Technical Context

This MCU implements an Arm Cortex-M3 r2p1 core operating up to 144 MHz with Memory Protection Unit (MPU) and NVIC supporting 48 peripheral interrupts across 16 priority levels. It integrates dual independent Flash banks (MainFlash with accelerator + WorkFlash) and two SRAM blocks (SRAM0 on I/D-code bus, SRAM1 on system bus) enabling deterministic code execution and data separation.

The peripheral set includes three multi-function timers with PWM/PPG/PWC modes, three QPRC channels for encoder position tracking, RTC with leap-year support, and a dual-channel watchdog (hardware + software). Clock supervision uses internal CR oscillators to monitor external OSC failure or frequency anomaly, triggering reset or interrupt.

Key Specifications

Pinout & Package

LQFP-120 package with exposed thermal pad; 0.5 mm pitch, 14 × 14 mm body size; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit Arm Cortex-M3 microcontroller applications.

Compared with CY9BF412NPQC-G-JNE2, CY9BF516NPMC-G-JNE2 extends Flash capacity and adds USB while retaining identical peripheral timing and motor control features; STM32F207ZGT6 trades LIN/QPRC for Ethernet and USB, requiring firmware re-architecture for motor feedback and protocol handling.

Availability

CY9BF412NPQC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drive, automotive body control, and smart grid metering applications requiring stable component supply, long-term lifecycle support, and qualified automotive-grade sourcing.

Supply support for CY9BF412NPQC-G-JNE2 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 MCUs, and security solutions, with global R&D and manufacturing infrastructure.

CY9BF412NPQC-G-JNE2 belongs to the FM3 family - a line of high-integration 32-bit Arm Cortex-M3 microcontrollers designed specifically for cost-sensitive, real-time industrial and automotive embedded control applications with robust peripheral sets.

FAQ

What is the maximum operating frequency and supported voltage range?

CY9BF412NPQC-G-JNE2 operates up to 144 MHz with a supply voltage range of 2.7 V to 5.5 V. Its Flash accelerator ensures zero-wait-state execution at frequencies ≤72 MHz, and its low-voltage detector (LVD2) triggers automatic reset if VCC drops below the configured threshold, ensuring reliable startup and brown-out recovery.

Does this MCU support LIN communication, and which revision is implemented?

Yes, CY9BF412NPQC-G-JNE2 supports LIN protocol Revision 2.1 in both master and slave modes via its Multi-function Serial Interface (CSIO/UART/LIN/I²C). It includes dedicated LIN break field generation (13–16 bit length) and delimiter control (1–4 bit), along with error detection for parity, framing, and overrun conditions.

How many CAN interfaces does it have, and what is their compliance level?

CY9BF412NPQC-G-JNE2 integrates two fully independent CAN 2.0A/B-compliant controllers, each supporting bit rates up to 1 Mbps. Each channel includes 32 message buffers and is compatible with ISO 11898-1 physical layer standards, enabling dual-bus architectures for redundancy or subsystem partitioning.

Is there hardware support for encoder position feedback, and how is it implemented?

Yes, the MCU includes three Quadrature Position/Revolution Counter (QPRC) units. Each supports configurable edge detection on AIN/BIN/ZIN inputs, 16-bit position and revolution counters, and two 16-bit compare registers - enabling precise measurement of rotary encoder position and direction for servo and BLDC motor control without CPU intervention.