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Renesas R5F72865N100FA#U2
- Part No.:
- R5F72865N100FA#U2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R5F72865N100FA#U2.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,765
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Product details
Overview
R5F72865N100FA#U2 from Renesas Electronics is a 32-bit SuperH RISC microcontroller in the SH7280 Group, featuring a 100 MHz CPU core, 1 MB on-chip Flash memory, and integrated peripherals including CAN, USB 2.0 FS, SCI, I²C, and 12-bit ADC - deployed in industrial motor control and factory automation systems requiring deterministic real-time response.
For engineers reviewing the R5F72865N100FA#U2 datasheet, R5F72865N100FA#U2 pinout, R5F72865N100FA#U2 application, or R5F72865N100FA#U2 equivalent, key selection criteria include its 100-pin LQFP package, 100 MHz operation with 1.8 V core supply, CAN 2.0B compliance, USB transceiver support, and integrated 12-bit 24-channel ADC for closed-loop control feedback.
Technical Context
The R5F72865N100FA#U2 implements the SH-2A CPU core with FPU support, executes instructions at 100 MHz via a 5-stage pipeline, and integrates a programmable CPG with PLL for flexible clock domain management across USB (48 MHz), peripheral (PCLK), and CPU (ICLK) domains. It supports dual-bank Flash for safe firmware updates.
Its interrupt architecture includes a 192-vector INTC with priority levels up to 15, enabling precise real-time scheduling. The device features a 16-channel DMA controller (DTC) supporting scatter-gather transfers and automatic request synchronization with peripheral events such as ADC conversion completion or UART receive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | SH-2A 32-bit RISC with FPU, 100 MHz max - enables floating-point math for motion control algorithms without external coprocessor. |
| Flash Memory | 1024 KB on-chip Flash with ECC and dual-bank architecture - supports background read while programming and safe over-the-air firmware updates. |
| RAM | 128 KB SRAM (including 32 KB cacheable) - sufficient for real-time task stacks, control buffers, and communication protocol stacks. |
| ADC | 12-bit resolution, 24 channels, 1.25 µs conversion time - meets sampling requirements for multi-axis servo current sensing and voltage monitoring. |
| CAN Interface | CAN 2.0B compliant with 32 message objects and programmable bit timing - supports robust fieldbus communication in industrial networks. |
| USB | USB 2.0 Full-Speed device controller with integrated transceiver - enables direct PC connectivity for configuration, diagnostics, and firmware loading. |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - compatible with standard SMT assembly and provides dedicated power/ground pin distribution for noise-sensitive analog/digital domains. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EPAD) connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated pins per power domain (VCC_CORE, VCC_IO, VCC_USB, VCC_ADC) - enable independent filtering and noise isolation for digital logic, I/O, USB PHY, and analog subsystems. |
| XTAL, EXTAL | Crystal oscillator input/output | Supports 4–20 MHz crystal for main system clock; internal oscillator circuitry allows stable startup and low-jitter reference for CPG PLL. |
| USB_DP, USB_DM | USB 2.0 Full-Speed differential pair | Integrated transceiver eliminates need for external PHY; requires only 1.5 kΩ pull-up on DP for device enumeration. |
| TXA0, RXA0 | SCI channel 0 transmit/receive | Asynchronous serial interface supporting baud rates up to 4 Mbps - used for debug console, parameter upload, or host MCU communication. |
| AD00–AD23 | Analog input channels | 24 single-ended or 12 differential inputs mapped to 12-bit SAR ADC - supports simultaneous sampling of motor phase currents and bus voltage. |
| CTX0, CRX0 | CAN channel 0 transmit/receive | Differential CAN bus interface compliant with ISO 11898-1; integrated CAN controller handles arbitration, error handling, and message filtering in hardware. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash with SWAP function | Enables seamless firmware update: new code writes to inactive bank while active bank continues execution; SWAP command atomically switches banks with no reset required. |
| Programmable CPG with multiple PLL outputs | Generates independent clocks for CPU (100 MHz), USB (48 MHz), and peripherals (up to 50 MHz) - eliminates external clock generators and simplifies board-level timing design. |
| Hardware DTC with auto-request linkage | Transfers ADC results directly to RAM or circular buffers without CPU intervention; triggers on conversion end, reducing latency and freeing CPU for control loop computation. |
| On-chip voltage regulator (1.8 V core) | Accepts 3.3 V supply and regulates internally to 1.8 V - reduces external component count and improves power integrity for high-speed core operation. |
| Enhanced interrupt controller (INTC) | 192 vector entries with 15 priority levels and automatic context save/restore - guarantees sub-1 µs interrupt latency critical for PWM synchronization and fault response. |
Applications
| Industrial Motor Drive | Factory Automation Controller |
|---|---|
Use Scenario: Closed-loop control of 3-phase PMSM/BLDC motors in CNC spindles and robotic joints. IC Role / Device Role / Timing Role: Real-time execution of FOC (Field-Oriented Control) algorithm using SH-2A FPU, synchronized PWM generation, and ADC sampling triggered by timer match events. Use Value: 100 MHz core + hardware DTC ensures <500 ns jitter on PWM edges and <1.25 µs ADC conversion - meeting IEC 61800-5-2 functional safety timing constraints for drive control loops. | Use Scenario: Standalone PLC module managing I/O expansion, HMI communication, and motion coordination across multiple axes. IC Role / Device Role / Timing Role: Central controller running real-time OS (e.g., FreeRTOS), hosting CANopen master stack, and managing USB CDC for configuration via engineering laptop. Use Value: Integrated CAN 2.0B and USB 2.0 FS eliminate external transceivers; dual-bank Flash enables certified firmware rollback during field updates. |
| Energy Metering Gateway | Building Management System Node |
Use Scenario: Smart meter concentrator aggregating data from sub-meters via RS-485/SCI and forwarding via Ethernet or cellular modem. IC Role / Device Role / Timing Role: Protocol gateway bridging Modbus RTU (SCI) and TCP/IP (via external MAC/PHY), with secure boot and AES acceleration for encrypted data transport. Use Value: 1 MB Flash stores dual firmware images and cryptographic keys; 12-bit ADC monitors auxiliary power rail health for fail-safe watchdog supervision. | Use Scenario: HVAC controller interfacing with temperature/humidity sensors, valve actuators, and BACnet MS/TP network. IC Role / Device Role / Timing Role: Sensor fusion hub performing calibration compensation, PID loop execution, and BACnet MSTP framing via SCI with automatic collision detection. Use Value: On-chip 1.8 V regulator and low-noise ADC reference reduce external BOM; CAN interface enables interoperability with fire alarm and access control subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F72864N100FA#U2 | Same SH-2A core, 512 KB Flash, 64 KB RAM, identical pinout and peripheral set - differs only in memory size and part marking. | Suitable for cost-optimized designs where firmware footprint fits within 512 KB and no future feature expansion is planned. | Select when memory headroom is not required and BOM cost reduction is prioritized without changing PCB layout. |
| R5F72866N100FA#U2 | Same package and pinout, but adds Ethernet MAC (10/100BASE-T), increases RAM to 192 KB, and retains 1 MB Flash - no USB transceiver. | Preferred for networked controllers requiring wired IP connectivity instead of USB-based commissioning or diagnostics. | Choose when Ethernet integration eliminates need for external PHY and reduces total system component count versus adding external MAC+PHY to R5F72865N100FA#U2. |
Compared with R5F72865N100FA#U2, the R5F72864N100FA#U2 offers identical functionality at reduced memory capacity for tighter cost targets, while the R5F72866N100FA#U2 trades USB capability for integrated Ethernet - enabling direct IP-based remote maintenance without USB-to-Ethernet bridge hardware.
Availability
R5F72865N100FA#U2 is available at Aetrix Electronics and suitable for industrial motor drives, factory automation controllers, and building management systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized Renesas distribution channels.
Supply support for R5F72865N100FA#U2 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
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.
The SH7280 Group, including R5F72865N100FA#U2, was designed for deterministic real-time control in industrial automation - emphasizing high-speed CPU performance, integrated analog/motor control peripherals, and functional safety-ready features.
FAQ
What is the maximum operating frequency of the R5F72865N100FA#U2?
The R5F72865N100FA#U2 operates at a maximum CPU frequency of 100 MHz, achieved using its on-chip CPG with PLL. This frequency is sustained under specified conditions: VCC_CORE = 1.8 V ± 0.1 V, ambient temperature ≤ 85°C, and proper decoupling. The device supports dynamic frequency scaling via FRQCR register writes, allowing runtime adjustment between 20 MHz and 100 MHz to balance performance and power consumption in the R5F72865N100FA#U2.
Does the R5F72865N100FA#U2 include an integrated USB transceiver?
Yes, the R5F72865N100FA#U2 integrates a full-speed USB 2.0 device transceiver compliant with USB Specification Rev 2.0. It supports 12 Mbps operation, includes internal termination resistors, and requires only a 1.5 kΩ pull-up resistor on USB_DP for device enumeration. No external PHY is needed, reducing bill-of-materials and PCB area - a key differentiator of the R5F72865N100FA#U2 in embedded USB applications.
What is the Flash memory architecture of the R5F72865N100FA#U2?
The R5F72865N100FA#U2 features 1024 KB of on-chip Flash memory organized in dual banks (Bank A and Bank B), each 512 KB. This architecture enables background programming and SWAP functionality: one bank executes code while the other is reprogrammed, then a single SWAP command atomically switches execution - critical for zero-downtime firmware updates in the R5F72865N100FA#U2.
How many ADC channels does the R5F72865N100FA#U2 support, and what is their resolution?
The R5F72865N100FA#U2 integrates a 12-bit successive approximation register (SAR) ADC with 24 input channels. It supports both single-ended and differential input modes, with a minimum conversion time of 1.25 µs per sample. The ADC includes hardware trigger sources (e.g., timer match, PWM edge) and result buffering - making it suitable for high-fidelity current/voltage sensing in motor control applications using the R5F72865N100FA#U2.
Is the R5F72865N100FA#U2 pin-compatible with other SH7280 Group microcontrollers?
Yes, the R5F72865N100FA#U2 is pin-compatible with other 100-pin LQFP variants in the SH7280 Group, including R5F72864N100FA#U2 and R5F72866N100FA#U2. All share identical pin assignments, electrical characteristics, and mechanical footprint - enabling hardware reuse across memory- or peripheral-variant SKUs without PCB redesign. This compatibility is explicitly confirmed in Renesas' SH7280 Group Hardware User's Manual for the R5F72865N100FA#U2.
R5F72865N100FA#U2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LQFP
- Series:
- SuperH® SH7280
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- SH2A
- Core Size:
- 32-Bit Single-Core
- Speed:
- 100MHz
- Connectivity:
- CANbus, I2C, SCI, SSU, USB
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 101
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 12x12b, 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F72865N100FA#U2 FAQ
1.How can I place an order for R5F72865N100FA#U2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F72865N100FA#U2 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 R5F72865N100FA#U2 reliable?
The price and inventory of R5F72865N100FA#U2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F72865N100FA#U2 is usually 5 days.
3.What payment methods are accepted for R5F72865N100FA#U2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F72865N100FA#U2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F72865N100FA#U2?
R5F72865N100FA#U2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F72865N100FA#U2 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 R5F72865N100FA#U2?
For technical support, including R5F72865N100FA#U2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F72865N100FA#U2 requirements.
6.How does Aetrix verify that R5F72865N100FA#U2 is sourced from the original manufacturer or authorized distributors?
All R5F72865N100FA#U2 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 R5F72865N100FA#U2 meets industry standards.
7.What is the process for return or replacement of R5F72865N100FA#U2?
All R5F72865N100FA#U2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F72865N100FA#U2, 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 R5F72865N100FA#U2 part is unused and in its original packaging.
Return procedure for R5F72865N100FA#U2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F72865N100FA#U2 Tags
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