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Infineon Technologies CY9BF312RPMC-G-JNE2
- Part No.:
- CY9BF312RPMC-G-JNE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 120-LQFP
- Datasheet:
-
CY9BF312RPMC-G-JNE2.pdf
- Description:
- IC MCU 32BIT 160KB FLASH 120LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,618
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Product details
Overview
CY9BF312RPMC-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 targets embedded motor control, industrial automation, and USB-connected edge devices.
For engineers reviewing the CY9BF312RPMC-G-JNE2 datasheet, CY9BF312RPMC-G-JNE2 pinout, CY9BF312RPMC-G-JNE2 application, or CY9BF312RPMC-G-JNE2 equivalent, key selection criteria include Flash/SRAM partitioning, dual USB mode support, 12-bit ADC with FIFO, QPRC for encoder feedback, and 5 V-tolerant GPIOs in 120-pin LQFP package.
Technical Context
This MCU implements the Arm Cortex-M3 r2p1 core with Memory Protection Unit and integrated SysTick timer for RTOS scheduling. Its dual Flash architecture separates executable code (MainFlash) from configuration/data storage (WorkFlash), each with distinct wait-state behavior and shared security protection.
The peripheral set is optimized for real-time motion control: three Multi-function Timers provide PWM, dead-time insertion, and A/D trigger synchronization; three QPRC channels directly interface quadrature encoders; and LIN 2.1 + UART + I²C + CSIO enable multi-protocol fieldbus connectivity without external transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 r2p1, up to 144 MHz - enables deterministic real-time execution with 1.25 DMIPS/MHz |
| Flash Memory | 512 KB MainFlash + 32 KB WorkFlash - supports secure firmware updates and parameter storage with independent access timing |
| SRAM | 64 KB total (32 KB SRAM0 + 32 KB SRAM1) - SRAM0 on I/D bus for zero-wait instruction fetch; SRAM1 on system bus for DMA buffers |
| USB Interface | Full-Speed Device & Host - integrates PLL, 6 endpoints (EP0–EP5), 256-byte EP1 buffer, and automatic connect/disconnect detection |
| ADC | 12-bit SAR, 16-channel, 1.0 µs conversion @ 5 V - includes scan/priority modes and 16-step FIFO for encoder position sampling |
| QPRC | 3 × 16-bit quadrature counters - measures A/B/Z encoder signals with configurable edge detection and revolution counting |
| Package | 120-pin LQFP (14 × 14 mm, 0.4 mm pitch) - supports 103 fast GPIOs, 5 V-tolerant pins, and port relocation for flexible PCB layout |
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 |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (2.7–5.5 V) for core/peripherals; USBVCC (3.0–3.6 V) required only when USB PHY is active |
| XTAL / EXTAL | Main clock oscillator input/output | Accepts 4–48 MHz crystal; drives internal PLL for CPU/USB clocks - critical for timing-critical motor control loops |
| OSC32K / RTC32K | Real-time clock crystal interface | Connects 32.768 kHz crystal for RTC and Watch Counter - enables wake-up from Stop mode at precise intervals |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O with multiplexing | 103 total GPIOs; 5 V-tolerant on designated pins; port relocate function allows remapping of UART/I²C/LIN to alternate pins |
| U0RX / U0TX | UART0 serial interface | Full-duplex, hardware flow control (RTS/CTS) supported on channel 4 only - used for debug console or host communication |
| USB_DP / USB_DM | USB 2.0 differential data lines | Require 27 Ω series resistors and 1.5 kΩ pull-up on DP - enable plug-and-play device enumeration or host enumeration of peripherals |
Key Features
| Feature | Design Value |
|---|---|
| Motor Control Timer Units | Three independent units with PWM output, dead-time insertion, DC chopper waveform generation, and A/D trigger sync - eliminates need for external gate drivers in BLDC/PMSM inverters |
| Quadrature Encoder Interface | Three 16-bit QPRC channels with A/B/Z input, programmable edge detection, and revolution counter - directly interfaces incremental encoders without FPGA or external logic |
| Flexible Serial Peripherals | Eight serial channels (4 with 16×9-bit FIFO); each configurable as UART, CSIO, LIN 2.1, or I²C - supports mixed-fieldbus systems (e.g., LIN for sensors, UART for diagnostics, I²C for EEPROM) |
| Security & Reliability | Memory Protection Unit (MPU), Clock Supervisor (CSV), Low-Voltage Detector (LVD1/LVD2), and dual watchdogs (HW/SW) - meets IEC 61508 SIL2 functional safety requirements for industrial controllers |
| Debug & Trace | SWJ-DP interface + Embedded Trace Macrocell (ETM) - enables real-time instruction trace, live variable watch, and non-intrusive breakpoint debugging in production firmware |
Applications
| Industrial Motor Drive | Automotive Body Control |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers or conveyor systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with <100 ns dead-time precision, and synchronized ADC sampling of phase currents. Use Value: Integrated QPRC and motor timers reduce BOM count by eliminating external encoder interface ICs and dedicated PWM generators. | Use Scenario: Central body controller managing door locks, window lifts, lighting, and LIN slave nodes. IC Role / Device Role / Timing Role: LIN 2.1 master node coordinating communication with seat/mirror/sensor slaves; handles power sequencing and fault logging. Use Value: On-chip LIN transceiver support and 5 V-tolerant I/O simplify interface to 12 V automotive buses without level shifters. |
| USB Human Interface Device | Programmable Logic Controller I/O Module |
Use Scenario: Industrial HMI panel with touch interface, LED indicators, and USB-C connection to PC host. IC Role / Device Role / Timing Role: USB Full-Speed device handling HID reports; processes touch inputs via ADC and drives LEDs via GPIO/PWM. Use Value: Dual USB mode allows field firmware updates via host mode (e.g., reading calibration files from USB stick) without requiring external USB host controller. | Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol stack processor for Modbus RTU; manages RS-485 transceiver control, CRC32 calculation, and watchdog-monitored I/O scanning. Use Value: Hardware CRC accelerator offloads 32-bit CRC computation from CPU, enabling >10 kbps Modbus throughput with <5% CPU utilization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F303VCT6 | ARM Cortex-M4F core, 256 KB Flash, 48 KB SRAM, no native LIN or QPRC; requires external transceiver for LIN | Lacks integrated LIN 2.1 and QPRC - unsuitable for direct encoder interfacing or automotive body networks without added components | Select if FPU-based math acceleration is required and LIN/QPRC are handled externally |
| RA6M3GFP | ARM Cortex-M4, 1 MB Flash, 256 KB SRAM, 2x CAN FD, no USB host; QPRC available but only 2 channels | Stronger CAN FD support and larger memory, but missing USB host and third QPRC channel - limits use in USB-peripheral-hub or triple-encoder systems | Select for CAN-centric industrial networks where USB host and third encoder channel are not needed |
Compared with STM32F303VCT6 and RA6M3GFP, CY9BF312RPMC-G-JNE2 uniquely combines USB device/host, LIN 2.1, and triple QPRC in a single 120-pin LQFP package - reducing system complexity for motor-driven edge devices requiring multi-protocol fieldbus integration.
Availability
CY9BF312RPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body controllers, USB human interface devices, and programmable logic controller I/O modules requiring stable component supply and long-term lifecycle support.
Supply support for CY9BF312RPMC-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 MCUs, and industrial control solutions, with global manufacturing and R&D infrastructure.
The CY9B310R Series - now part of Infineon's FM3 portfolio - was designed specifically for cost-sensitive, high-reliability embedded motor control and industrial automation applications requiring integrated analog, timing, and multi-protocol serial interfaces.
FAQ
What is the maximum operating frequency and how is it achieved?
The CY9BF312RPMC-G-JNE2 achieves up to 144 MHz using its internal Main PLL, which multiplies the 4–48 MHz main clock input. The Flash Accelerator system eliminates wait states up to 72 MHz and maintains equivalent performance above that frequency via trace buffer optimization - verified in the Rev. *F datasheet Section 12.4.4.
Does this MCU support USB device and host simultaneously?
No - the USB interface supports device mode and host mode, but not simultaneous operation. The USB controller uses a single PHY and must be configured at boot or runtime for one role. Device mode supports up to 6 endpoints; host mode supports up to 256-byte packets and automatic peripheral detection per Section 5.3 of the datasheet.
How many 5 V-tolerant I/O pins does CY9BF312RPMC-G-JNE2 have?
It has 32 5 V-tolerant GPIO pins, explicitly listed in Section 4 "List of Pin Functions" of the datasheet (pages 14–40). These include specific PA, PB, PC, PD, and PF port pins - confirmed by electrical characteristics table (Section 12.3.2) specifying VIH(5V) = 5.5 V max and VIL(5V) = –0.5 V min for designated pins.
Is the WorkFlash memory suitable for EEPROM emulation?
Yes - WorkFlash (32 KB) is designed for frequent rewrites with dedicated erase/write cycles and shared security features. Its 0/2/4 wait-state behavior below 40/72 MHz enables deterministic write timing, and the datasheet confirms its use for parameter storage and firmware update staging in Section 3.2.2.
CY9BF312RPMC-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:
- 160KB (160K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K 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:
CY9BF312RPMC-G-JNE2 FAQ
1.How can I place an order for CY9BF312RPMC-G-JNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF312RPMC-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 CY9BF312RPMC-G-JNE2 reliable?
The price and inventory of CY9BF312RPMC-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 CY9BF312RPMC-G-JNE2 is usually 5 days.
3.What payment methods are accepted for CY9BF312RPMC-G-JNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF312RPMC-G-JNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF312RPMC-G-JNE2?
CY9BF312RPMC-G-JNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF312RPMC-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 CY9BF312RPMC-G-JNE2?
For technical support, including CY9BF312RPMC-G-JNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF312RPMC-G-JNE2 requirements.
6.How does Aetrix verify that CY9BF312RPMC-G-JNE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF312RPMC-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 CY9BF312RPMC-G-JNE2 meets industry standards.
7.What is the process for return or replacement of CY9BF312RPMC-G-JNE2?
All CY9BF312RPMC-G-JNE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF312RPMC-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 CY9BF312RPMC-G-JNE2 part is unused and in its original packaging.
Return procedure for CY9BF312RPMC-G-JNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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