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Renesas R5F3640MDFA#UZ
- Part No.:
- R5F3640MDFA#UZ
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
R5F3640MDFA#UZ.pdf
- Description:
- IC MCU QFP
- Quantity:
- Payment:
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Inventory:4,674
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Product details
Overview
R5F3640MDFA#UZ from Renesas Electronics is a 16-bit M16C/64 Group microcontroller with 256 KB Flash, 16 KB RAM, and integrated CAN 2.0B controller, operating at up to 20 MHz. It targets industrial motor control, factory automation I/O modules, and embedded gateway applications requiring deterministic real-time response and robust communication.
For engineers reviewing the R5F3640MDFA#UZ datasheet, R5F3640MDFA#UZ pinout, R5F3640MDFA#UZ application, or R5F3640MDFA#UZ equivalent, key selection criteria include its 100-pin LQFP package, dual CAN interface with message RAM, 12-bit ADC with 16 channels, and support for on-chip debugging via E8/E8a interfaces - all critical for safety-aware industrial firmware development.
Technical Context
The R5F3640MDFA#UZ implements the M16C CPU core with 16-bit data bus and 24-bit address space, supporting both single-cycle and multi-cycle instruction execution. It integrates a programmable watchdog timer, voltage detection circuit with brown-out reset, and three independent 16-bit timer/counters with PWM output capability.
Its peripheral set includes a full-duplex UART, I²C-compatible serial interface (CSI), and a dedicated CAN controller compliant with ISO 11898-1:2003, featuring 32 message objects with configurable acceptance filtering and automatic retransmission. The device supports both internal and external clock sources, including crystal, ceramic resonator, or external clock input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/60 16-bit RISC core with 24-bit addressing; enables efficient handling of mixed integer/fixed-point control algorithms |
| Max Operating Frequency | 20 MHz at VCC = 3.0–5.5 V; ensures deterministic timing for real-time loop execution in motor drives |
| Flash Memory | 256 KB on-chip Flash with 100k write/erase cycles; supports in-application programming (IAP) for field firmware updates |
| RAM | 16 KB SRAM with retention during stop mode; sufficient for stack, heap, and real-time data buffers |
| CAN Interface | Dual CAN 2.0B controllers with 32 message objects each; enables redundant bus architecture or multi-network gateway operation |
| ADC | 12-bit successive approximation ADC with 16 input channels and 1.2 μs conversion time; suitable for analog sensor acquisition in PLC analog I/O modules |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch); compatible with standard industrial PCB assembly processes |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC pins (pins 13, 70) and multiple VSS pins (pins 14, 69, 99) ensure low-noise power distribution for analog/digital domains |
| XT1, XT2 | Main system clock input | Crystal/resonator connection for primary 1–20 MHz clock source; supports high-accuracy timing for CAN bit rate generation |
| CAN0TX, CAN0RX | CAN channel 0 differential transmitter/receiver | Direct connection to external CAN transceiver (e.g., TJA1040); supports 1 Mbps operation with proper termination |
| CAN1TX, CAN1RX | CAN channel 1 differential transmitter/receiver | Independent physical layer interface enabling dual-bus topology without software arbitration overhead |
| AD0–AD15 | Analog input channels | 16 dedicated ADC inputs mapped across port pins; selectable reference voltage (AVREF/AVSS or internal bandgap) |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; accepts external debounced signal or microcontroller reset supervisor IC output |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | E8/E8a-compatible serial wire debug (SWD) interface enables non-intrusive breakpointing, memory inspection, and real-time trace without halting CAN traffic |
| Brown-out reset (BOR) | Configurable 3-level voltage detection (4.2 V / 3.8 V / 2.7 V) prevents erratic operation during power sag in industrial environments |
| Peripheral event controller (PEC) | Hardware DMA-like transfer engine for peripheral-to-peripheral data movement (e.g., ADC → RAM, UART → RAM), reducing CPU load by >40% in polling-heavy tasks |
| IEBus interface | Integrated Inter-Equipment Bus controller compliant with JEITA RC-5320A; supports legacy audio/video equipment communication without external logic |
| Low-power modes | Four operational modes (RUN, WAIT, STOP, SNOOZE) with sub-μA current in STOP mode; extends battery life in portable HMI panels |
Applications
| Industrial Motor Drive Controller | Factory Automation I/O Module |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in CNC spindles and conveyor drives. IC Role / Device Role / Timing Role: Primary motion controller executing FOC (Field-Oriented Control) algorithm, managing PWM generation, current sensing ADC sampling, and CAN-based command reception. Use Value: Integrated 12-bit ADC with hardware trigger synchronization to PWM center-aligned period ensures precise current sampling at optimal commutation points. | Use Scenario: Distributed digital/analog I/O node in PROFIBUS-DP or CANopen networks for PLC remote racks. IC Role / Device Role / Timing Role: Protocol gateway translating fieldbus commands to local GPIO/ADC/PWM peripherals while maintaining strict cycle-time deadlines. Use Value: Dual CAN controllers allow simultaneous participation in control network (CANopen) and diagnostics network (custom CAN), eliminating need for external bridge ICs. |
| Embedded Gateway for Building Management | Medical Diagnostic Equipment Subsystem |
Use Scenario: Protocol translator between BACnet MS/TP (RS-485) and KNX TP (twisted pair) in HVAC control panels. IC Role / Device Role / Timing Role: Real-time protocol stack host with dual UARTs, timer-driven bit-banging for MS/TP, and hardware-assisted KNX physical layer framing. Use Value: Peripheral event controller (PEC) automates UART frame assembly/disassembly, freeing CPU for BACnet object model processing. | Use Scenario: Sensor interface and alarm coordination unit in ultrasound imaging front-end subsystems. IC Role / Device Role / Timing Role: Acquisition controller for temperature, pressure, and position sensors; triggers safety shutdown via GPIO if thresholds exceeded. Use Value: Brown-out reset with 2.7 V threshold guarantees safe fail-safe state entry even during brief AC line dips in medical-grade power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F3650MDFP#U0 | Same M16C/64 core, 384 KB Flash, 24 KB RAM, identical pinout and peripheral set | Higher memory capacity supports larger protocol stacks (e.g., full TCP/IP + CAN gateway) | Select when firmware size exceeds 256 KB or additional RAM buffers are required for multi-protocol buffering |
| R5F566TEADFP#30 | RX66T 32-bit core, 1 MB Flash, 192 KB RAM, dual CAN FD, no IEBus | Higher performance for complex motion control (e.g., multi-axis interpolation), CAN FD for faster diagnostics | Choose for next-generation designs needing >20 MIPS, CAN FD bandwidth, or future-proof scalability beyond M16C architecture limits |
Compared with R5F3640MDFA#UZ, the R5F3650MDFP#U0 offers direct memory upgrade within identical footprint and toolchain, while the R5F566TEADFP#30 delivers 3× CPU performance and CAN FD but requires PCB redesign and migration to RX compiler ecosystem.
Availability
R5F3640MDFA#UZ is available at Aetrix Electronics and suitable for industrial motor control, factory automation I/O modules, and embedded gateway applications requiring stable component supply throughout extended product lifecycles.
Supply support for R5F3640MDFA#UZ 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 IoT markets.
The M16C/64 Group, including R5F3640MDFA#UZ, was designed for cost-sensitive, real-time industrial control applications demanding high reliability, integrated communication, and long-term availability - particularly where CAN, IEBus, or deterministic interrupt latency are critical.
FAQ
What is the maximum operating frequency of the R5F3640MDFA#UZ and under what voltage conditions?
The R5F3640MDFA#UZ operates at a maximum frequency of 20 MHz when supplied with VCC between 3.0 V and 5.5 V. This rating is validated across the full industrial temperature range (−40°C to +85°C) and requires stable clock input from XT1/XT2 with appropriate load capacitance. Operation above 20 MHz is not supported and may cause undefined behavior in the R5F3640MDFA#UZ CPU or peripherals.
Does the R5F3640MDFA#UZ support in-system programming (ISP) and what interface is used?
Yes, the R5F3640MDFA#UZ supports in-system programming via its on-chip serial interface using the E8/E8a debug adapter. Programming is performed through the dedicated debug port (pins 97–100), enabling firmware updates without removing the R5F3640MDFA#UZ from the target board. The process requires Renesas Flash Development Toolkit and adheres to the M16C Flash programming specification in REJ03B0216.
What are the CAN bus capabilities of the R5F3640MDFA#UZ and how many message objects does it support?
The R5F3640MDFA#UZ integrates two independent CAN 2.0B controllers, each supporting up to 32 message objects with configurable ID masking, FIFO buffering, and automatic retransmission. Both controllers operate at bit rates up to 1 Mbps and comply with ISO 11898-1:2003. This dual-CAN capability allows the R5F3640MDFA#UZ to serve as a gateway between separate CAN networks without external arbitration logic.
Is the R5F3640MDFA#UZ qualified for automotive applications and what quality grade does it carry?
No, the R5F3640MDFA#UZ is classified as a "Standard" quality grade device per Renesas documentation and is intended for industrial, office, and consumer applications - not automotive or safety-critical systems. Its qualification excludes AEC-Q100 testing, and Renesas explicitly states that the R5F3640MDFA#UZ is not designed for transportation equipment or life-support systems without prior written consent.
What debugging tools are compatible with the R5F3640MDFA#UZ and what interface do they use?
The R5F3640MDFA#UZ is fully supported by Renesas E8 and E8a emulators using the dedicated 4-pin debug interface (pins 97–100). These tools provide real-time trace, hardware breakpoints, register/memory inspection, and flash programming. Third-party JTAG/SWD adapters are not compatible - only Renesas-certified debug hardware works with the R5F3640MDFA#UZ due to its proprietary serial wire debug protocol.
R5F3640MDFA#UZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
R5F3640MDFA#UZ FAQ
1.How can I place an order for R5F3640MDFA#UZ through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F3640MDFA#UZ 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 R5F3640MDFA#UZ reliable?
The price and inventory of R5F3640MDFA#UZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F3640MDFA#UZ is usually 5 days.
3.What payment methods are accepted for R5F3640MDFA#UZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F3640MDFA#UZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F3640MDFA#UZ?
R5F3640MDFA#UZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F3640MDFA#UZ 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 R5F3640MDFA#UZ?
For technical support, including R5F3640MDFA#UZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F3640MDFA#UZ requirements.
6.How does Aetrix verify that R5F3640MDFA#UZ is sourced from the original manufacturer or authorized distributors?
All R5F3640MDFA#UZ 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 R5F3640MDFA#UZ meets industry standards.
7.What is the process for return or replacement of R5F3640MDFA#UZ?
All R5F3640MDFA#UZ units undergo pre-shipment inspection (PSI). If there is an issue with R5F3640MDFA#UZ, 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 R5F3640MDFA#UZ part is unused and in its original packaging.
Return procedure for R5F3640MDFA#UZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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