Infineon Technologies CY9BF315RPMC-G-JNE2
- Part No.:
- CY9BF315RPMC-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 120-LQFP
- Datasheet:
-
CY9BF315RPMC-G-JNE2.pdf
- Description:
- IC MCU 32BIT 416KB FLASH 120LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:3,216
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Product details
Overview
CY9BF315RPMC-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 CY9BF315RPMC-G-JNE2 datasheet, CY9BF315RPMC-G-JNE2 pinout, CY9BF315RPMC-G-JNE2 application, or CY9BF315RPMC-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 support, and 5 V-tolerant GPIO allocation per pin function mapping.
Technical Context
This MCU implements a dual-bank Flash architecture (MainFlash + WorkFlash) with independent wait-state control and shared code protection, enabling secure firmware updates without runtime interruption. Its memory subsystem connects SRAM0 to I/D-code buses and SRAM1 to the system bus for deterministic interrupt latency and DMA coherency.
The peripheral set integrates three multi-function timers with dead-time insertion, A/D activation triggers, and waveform generation - directly supporting three-phase inverter control. The USB module embeds dedicated PLL and dual-buffer endpoints (including 256-byte EP1), while the QPRC provides 16-bit position/revolution counters with configurable A/B/Z edge detection for real-time encoder feedback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, up to 144 MHz - enables deterministic real-time task scheduling in motor control loops |
| Flash Memory | 512 KB MainFlash + 32 KB WorkFlash - supports background firmware update with zero downtime |
| SRAM | 64 KB total (32 KB SRAM0 + 32 KB SRAM1) - separates instruction/data access paths for low-latency ISR execution |
| ADC | 12-bit SAR, 1.0 µs conversion @ 5 V, 16-channel scan mode - meets fast current-sensing requirements in PMSM drives |
| USB Interface | Full-Speed device/host with built-in PLL, 6 endpoints (EP1 = 256 B double-buffer) - enables field-service firmware upload and host-side diagnostics |
| QPRC | 3-channel quadrature counter with 16-bit position/revolution registers - directly interfaces incremental encoders without external logic |
| Power Supply | VCC = 2.7–5.5 V; USBVCC = 3.0–3.6 V - allows single-rail operation in 3.3 V systems with isolated USB I/O |
Pinout & Package
Package: 120-pin LQFP (14 mm × 14 mm, 0.4 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | General-purpose I/O with port relocate | Configurable as UART0 TX/RX, CSIO0, or LIN0 - enables flexible board layout and signal routing |
| P10–P17 | 5 V-tolerant GPIO | Direct interface to legacy 5 V sensors or logic without level shifters |
| USB_DP / USB_DM | USB 2.0 differential data pair | Requires 90 Ω differential impedance trace routing and 1.5 kΩ pull-up on DP for device enumeration |
| QEA / QEB / QEZ | Quadrature encoder inputs | Dedicated hardware filtering and edge-triggered capture - eliminates CPU overhead in position tracking |
| AD00–AD15 | Analog input channels | Shared with GPIO; configured via ADPC register - supports simultaneous sampling across multiple motor phases |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Enforces privilege separation between bootloader, application, and peripheral drivers - prevents accidental memory corruption in safety-critical tasks |
| Dual-bank Flash with Accelerator | Zero-wait-state access up to 72 MHz; maintains performance at 144 MHz via trace buffer - eliminates pipeline stalls during code fetch |
| Motor Control Timer Block | Includes dead-time insertion, PWM sync, and A/D trigger outputs - enables precise gate-drive timing for IGBT/MOSFET inverters |
| Embedded Trace Macrocell (ETM) | Real-time instruction trace over SWJ-DP - captures exact program flow during dynamic fault analysis without probe interference |
| CRC Accelerator (CRC16/CRC32) | Offloads checksum calculation from CPU during firmware OTA updates - reduces latency and improves data integrity verification speed |
Applications
| Industrial Motor Drive | Automotive Body Control Module |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC/PMSM motors in HVAC compressors and pump systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation, current sensing via 12-bit ADC, and position feedback via QPRC. Use Value: Sub-microsecond ADC conversion and hardware-dead-time insertion enable <1 µs timing precision for gate driver signals. | Use Scenario: Centralized control of door locks, window lifts, and lighting functions with LIN communication to slave nodes. IC Role / Device Role / Timing Role: LIN 2.1 master node managing up to 16 slave ECUs, coordinating power sequencing and diagnostic reporting. Use Value: Integrated LIN transceiver interface and programmable break field (13–16 bit) ensure robust communication in noisy automotive environments. |
| Programmable Logic Controller (PLC) I/O Module | USB-Capable Field Programmer |
Use Scenario: Modular digital/analog I/O expansion unit with isolated CAN/UART connectivity and local logic processing. IC Role / Device Role / Timing Role: High-speed GPIO handling (103 pins), ADC scanning, and real-time interrupt response for deterministic I/O update cycles. Use Value: Port relocate function allows remapping of UART/CSIO/I²C to any available pins - simplifies PCB redesign for variant configurations. | Use Scenario: Handheld firmware updater for industrial equipment using USB mass storage or CDC ACM protocols. IC Role / Device Role / Timing Role: USB Full-Speed device with dual-buffered endpoints and built-in PLL - supports high-throughput binary transfers without host-side driver installation. Use Value: 256-byte endpoint buffer on EP1 enables 1 MB/s effective throughput for firmware images up to 512 KB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit Arm Cortex-M3 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F207ZGT6 | 1 MB Flash, 128 KB SRAM, no WorkFlash; USB OTG HS/FS, no integrated LIN PHY | Lacks native LIN 2.1 support; requires external transceiver for automotive body networks | Preferred when larger code space and Ethernet MAC are required, but adds BOM cost for LIN interface |
| RA4M1 (R7FA4M1AB3CFM) | 256 KB Flash, 32 KB SRAM, no QPRC; USB FS only, no host mode | No quadrature encoder hardware - position tracking requires CPU-intensive software polling or external IC | Selected for lower-cost consumer appliances where encoder resolution < 1000 PPR suffices |
Compared with STM32F207ZGT6 and RA4M1, CY9BF315RPMC-G-JNE2 uniquely combines WorkFlash for safe firmware updates, hardware QPRC for encoder interfacing, and dual-role USB - making it optimal for field-upgradable motor controllers requiring minimal external components.
Availability
CY9BF315RPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, PLC I/O expansion, and USB-capable field programmers requiring stable component supply and long-term lifecycle support.
Supply support for CY9BF315RPMC-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 part belongs to the FM3 family of high-performance 32-bit microcontrollers designed specifically for industrial motor control, factory automation, and automotive body electronics - emphasizing real-time determinism, functional safety readiness, and mixed-signal integration.
FAQ
Does CY9BF315RPMC-G-JNE2 support USB device and host modes simultaneously?
No. The USB interface supports device mode and host mode, but not concurrent operation. Mode selection is controlled by the USBMODE bit in the USBPHYCR register at reset. Switching between modes requires full USB controller reinitialization, including clock configuration and endpoint setup - typical use cases assign one fixed role per firmware image.
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, enabling reliable 144 MHz core operation without code-execution stalls.
How many pins are 5 V tolerant, and which ones?
16 GPIO pins are 5 V tolerant: P10–P17, P20–P27. These are explicitly designated in the "List of Pin Functions" section (page 14) of the datasheet. Tolerance applies only when the pin is configured as input or high-impedance output - driving 5 V logic levels as output may damage the device.
Is the CRC accelerator capable of verifying data during DMA transfers?
Yes. The CRC accelerator can be triggered by DMA request signals and operates independently of the CPU. When configured for memory-to-memory CRC calculation, it processes data blocks transferred via DMA without CPU intervention - enabling real-time integrity checking of firmware images loaded into Flash or SRAM buffers.
CY9BF315RPMC-G-JNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 120-LQFP
- Series:
- FM3 MB9B310R
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 144MHz
- Connectivity:
- CSIO, EBI/EMI, I2C, LINbus, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 103
- Program Memory Size:
- 416KB (416K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF315RPMC-G-JNE2 FAQ
1.How can I place an order for CY9BF315RPMC-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF315RPMC-G-JNE2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY9BF315RPMC-G-JNE2 reliable?
The price and inventory of CY9BF315RPMC-G-JNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF315RPMC-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9BF315RPMC-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF315RPMC-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF315RPMC-G-JNE2?
CY9BF315RPMC-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF315RPMC-G-JNE2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY9BF315RPMC-G-JNE2?
For technical support, including CY9BF315RPMC-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF315RPMC-G-JNE2 requirements.
6.How does Aetrix verify that CY9BF315RPMC-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF315RPMC-G-JNE2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY9BF315RPMC-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9BF315RPMC-G-JNE2?
All CY9BF315RPMC-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF315RPMC-G-JNE2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY9BF315RPMC-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9BF315RPMC-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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