Infineon Technologies CY9BF515NPMC-G-JNE2

Overview

CY9BF515NPMC-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 USB 2.0 Full-Speed device/host capability - deployed in motor control, industrial automation, and automotive body electronics.

For engineers reviewing the CY9BF515NPMC-G-JNE2 datasheet, CY9BF515NPMC-G-JNE2 pinout, CY9BF515NPMC-G-JNE2 application, or CY9BF515NPMC-G-JNE2 equivalent, key selection criteria include integrated motor control timers (PPG/PWM), 12-bit ADC with 1.0 µs conversion at 5 V, RTC with leap-year support, QPRC for encoder position sensing, and dual watchdog timers with hardware/software independence.

Technical Context

This MCU implements a deterministic real-time execution environment via its Arm Cortex-M3 r2p1 core running up to 144 MHz, MPU for memory isolation, and NVIC supporting 48 peripheral interrupts across 16 priority levels. It integrates dedicated peripherals including three multi-function timers with DTIF (motor emergency stop) interrupt, dual CAN controllers with 32 message buffers, and eight-channel DMA with independent bus access.

The clock system combines five sources - main oscillator (4–48 MHz), sub-clock (32.768 kHz), high-speed/low-speed internal CR oscillators, and dual PLLs (main and USB) - managed by Clock Supervisor (CSV) for external clock failure detection and LVD2-triggered auto-reset. Power management includes Sleep, Timer, and Stop modes with wake-up via Watch Counter or QPRC events.

Key Specifications

Pinout & Package

Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, with up to 103 fast GPIOs, 5 V-tolerant pins on selected functions (e.g., UART, CAN, I²C), and dedicated power/ground distribution for noise-sensitive analog and digital domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103VET6 and RA4M1, CY9BF515NPMC-G-JNE2 uniquely delivers simultaneous USB host/device, dual CAN, QPRC, and DTIF within a single 120-pin LQFP package - making it optimal for space-constrained, multi-protocol embedded controllers requiring deterministic motor timing and fieldbus interoperability.

Availability

CY9BF515NPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and smart energy metering systems requiring stable component supply, long-term lifecycle support, and full production traceability.

Supply support for CY9BF515NPMC-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 is a German semiconductor leader specializing in power management, automotive ICs, and embedded security solutions, with global manufacturing and R&D infrastructure.

This part belongs to the FM3 family of high-integration Arm Cortex-M3 microcontrollers, designed specifically for cost-sensitive, real-time industrial and automotive applications demanding mixed-signal precision, motor control peripherals, and multi-protocol connectivity.

FAQ

Does CY9BF515NPMC-G-JNE2 support USB device and host modes simultaneously?

Yes - the integrated USB interface supports concurrent Full-Speed device and host operation. The hardware separates endpoint buffers and control logic, enabling the MCU to act as a USB device (e.g., CDC virtual COM port) while simultaneously enumerating and communicating with USB peripherals such as HID keyboards or mass-storage devices, without requiring external USB switches or hubs.

What is the maximum operating frequency with zero wait states on MainFlash?

MainFlash achieves zero wait-state access up to 72 MHz. Above that frequency, the built-in Flash Accelerator System - including a 16 KB trace buffer - maintains equivalent performance by prefetching and caching instructions, ensuring deterministic execution timing critical for motor control loops and real-time interrupt response.

How does the dual watchdog system enhance functional safety?

The hardware watchdog runs independently on the 100 kHz low-speed internal CR oscillator, remaining active in all power modes except Stop - detecting clock failures or software hangs even during deep sleep. The software watchdog operates on the main clock domain, providing layered supervision: if the main PLL fails, the hardware WD triggers reset while the software WD remains silent, enabling root-cause diagnosis via status registers.

Can the QPRC interface handle index pulse (Z-phase) signals for absolute position recovery?

Yes - each QPRC channel accepts AIN, BIN, and ZIN inputs with configurable edge detection. The ZIN signal resets the 16-bit position counter and increments the 16-bit revolution counter, enabling absolute position reconstruction after power-on or reset. This eliminates reliance on external microcontrollers or FPGA logic for homing routines in servo and actuator applications.