Infineon Technologies CY9BF316RPMC-G-JNE2

Overview

CY9BF316RPMC-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, USB 2.0 Full-Speed device/host interface, and integrated motor control timers. It operates up to 144 MHz, includes MPU, NVIC with 48 peripheral interrupts, and supports LIN 2.1, I²C, UART, and CSIO on eight serial channels - deployed in industrial motor drives and embedded motion controllers.

For engineers reviewing the CY9BF316RPMC-G-JNE2 datasheet, CY9BF316RPMC-G-JNE2 pinout, CY9BF316RPMC-G-JNE2 application, or CY9BF316RPMC-G-JNE2 equivalent, key selection criteria include Flash/SRAM partitioning, USB dual-role capability, 12-bit ADC timing (1.0 µs @ 5 V), QPRC encoder interface, and 5 V-tolerant GPIO allocation across 120-pin LQFP.

Technical Context

The CY9BF316RPMC-G-JNE2 implements a dual-bank Flash architecture: MainFlash (512 KB) with accelerator enabling zero-wait access up to 72 MHz, and WorkFlash (32 KB) with configurable wait states (0/2/4 cycles). Its memory subsystem uses separate I-code/D-code buses for SRAM0 (32 KB) and System bus for SRAM1 (32 KB), enabling concurrent CPU and DMA access.

Peripherals are organized around dedicated timing domains: USB PLL derives clock from main oscillator (4–48 MHz); RTC runs from 32.768 kHz sub-clock; QPRC and motor timers synchronize to base timer units with dead-time insertion and A/D activation triggers; CRC accelerator supports CCITT CRC16 and IEEE-802.3 CRC32 with hardware polynomial engines.

Key Specifications

Pinout & Package

Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, moisture sensitivity level 3.

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, the CY9BF316RPMC-G-JNE2 uniquely integrates QPRC, LIN 2.1, and USB host/device in a single chip - reducing BOM count and PCB area in motion-control and automotive body electronics where encoder feedback and multi-protocol connectivity are mandatory.

Availability

CY9BF316RPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, USB-capable HMIs, and smart power metering nodes requiring stable component supply and long-term lifecycle support.

Supply support for CY9BF316RPMC-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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and security solutions.

This device belongs to the FM3 family of high-performance, cost-optimized Arm Cortex-M3 microcontrollers designed specifically for industrial motor control, automotive body electronics, and USB-integrated embedded systems.

FAQ

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

The CY9BF316RPMC-G-JNE2 achieves up to 144 MHz using its built-in Main PLL, which multiplies an external 4–48 MHz crystal or clock source. The Flash Accelerator ensures zero-wait-state execution at ≤72 MHz and maintains effective throughput above that via prefetch and trace buffer optimization - verified in the datasheet's AC characteristics section (Rev. *F, p.70).

Does this MCU support USB device and host modes simultaneously?

No - USB device and host modes are mutually exclusive and selected at runtime via software configuration of the USB controller registers. The hardware shares the same PHY and endpoint resources; simultaneous dual-role operation is not supported. This is documented in Section "USB Interface" (p.2) of the datasheet.

How many quadrature encoder channels does the QPRC support and what are their capabilities?

The QPRC supports three independent channels (QPRC0–QPRC2), each with configurable A/B/Z input edge detection, 16-bit position and revolution counters, and two 16-bit compare registers. Each channel can operate as up/down counter with automatic index (Z) event capture - detailed in "Quadrature Position/Revolution Counter" (p.3).

Is the WorkFlash memory suitable for EEPROM emulation and what endurance is guaranteed?

Yes - WorkFlash (32 KB) is explicitly designed for EEPROM emulation with sector erase and byte-programmable writes. While the datasheet does not specify write/erase endurance cycles, Infineon's FM3 Family Peripheral Manual confirms its use for parameter storage and firmware configuration, and application notes (AN94570) validate >100,000 cycles using wear-leveling algorithms implemented in firmware.