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Renesas R5F3651TDFC#U0
- Part No.:
- R5F3651TDFC#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F3651TDFC#U0.pdf
- Description:
- IC MCU 16BIT 768KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,112
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Product details
Overview
R5F3651TDFC#U0 from Renesas is a 16-bit M16C/60 Series CPU core microcontroller with 768 KB program flash, 16 KB RAM, and 47 KB data flash, operating at 32 MHz with 2.7–5.5 V supply. It integrates dual A/D converters (10-bit × 26 channels), dual D/A converters (8-bit × 2), CEC interface, three-phase motor control timers, and real-time clock - deployed in industrial HMI and consumer audio/video systems.
For engineers reviewing the R5F3651TDFC#U0 datasheet, R5F3651TDFC#U0 pinout, R5F3651TDFC#U0 application, or R5F3651TDFC#U0 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade, 128-pin LQFP package (PLQP0128KB-A), on-chip debug support, and CEC compliance for HDMI-adjacent control subsystems.
Technical Context
The R5F3651TDFC#U0 implements the M16C/60 CPU core with 16×16-bit multiplier and MAC instruction, enabling deterministic real-time motor control loops. Its peripheral set includes six 16-bit Timer B units for pulse width/period measurement and three-phase inverter timing with integrated dead-time generation.
It features five 16-bit Timer A modules supporting PWM, encoder input, and programmable output modes, plus dual remote control signal receivers (32 kHz operation) with 4-waveform pattern matching - critical for IR-based user interfaces in home entertainment equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/60 Series with 16×16-bit multiplier and MAC instruction - enables fast digital signal processing in motor and power control firmware |
| Max Clock Frequency | 32 MHz at 2.7–5.5 V - supports real-time response in closed-loop industrial control applications |
| Memory | 768 KB program flash / 16 KB RAM / 47 KB data flash - sufficient for complex embedded firmware with field-upgradable parameters |
| A/D Converter | 10-bit resolution × 26 channels with sample-and-hold - captures analog sensor inputs across multi-sensor industrial monitoring systems |
| CEC Interface | HDMI CEC transmit/receive with arbitration loss detection and automatic ACK - enables one-touch play and system-wide power control in AV receivers |
| Operating Temperature | -40°C to +85°C - qualified for deployment in uncontrolled industrial enclosures and automotive cabin environments |
| Package | 128-pin LQFP (PLQP0128KB-A, 20×20 mm, 0.5 mm pitch) - compatible with standard SMT assembly and thermal management in dense PCB layouts |
Pinout & Package
Package: 128-pin LQFP (PLQP0128KB-A), 20 mm × 20 mm, 0.5 mm pitch, exposed pad optional per Renesas specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Port 0 I/O with A/D channel mapping | 8-bit parallel data bus or 8-channel analog input - configurable for legacy interface bridging or sensor acquisition |
| P5_3 (BCLK) | Bus clock input | Synchronizes external memory access and peripheral timing - critical for reliable 1 MB address space expansion |
| P6_0 (RTCOUT) | Real-time clock output | Provides 1 Hz or selectable frequency timebase - drives external calendar displays or low-power wake-up circuits |
| P8_5 (NMI/SD/CEC) | Non-maskable interrupt / Serial download / CEC I/O | Shared pin for firmware recovery, programming, and HDMI-CEC communication - reduces board-level pin count in AV designs |
| VCC1/VCC2 | Dual power supply inputs | VCC1 powers core/peripherals; VCC2 powers external bus - enables mixed-voltage interfacing (e.g., 3.3 V core + 5 V legacy peripherals) |
Key Features
| Feature | Design Value |
|---|---|
| Three-phase motor control circuit | Integrated dead-time timer and complementary PWM outputs on Timer A1/A2/A4/B2 - eliminates need for external gate driver logic in inverter designs |
| Multi-master I²C-bus interface | Single hardware channel supporting master/slave arbitration - simplifies communication with multiple sensors or EEPROMs without software bit-banging |
| Remote control signal receiver | Two independent 32 kHz receivers with 4-waveform pattern matching - decodes NEC, RC-5, and custom IR protocols without CPU overhead |
| On-chip debug and flash rewrite | Full JTAG-compatible debug with address match interrupts and in-system reprogramming - enables field firmware updates and production test automation |
| CRC calculator (CRC-CCITT/CRC-16) | Hardware-accelerated checksum engine - offloads communication protocol integrity checks from CPU in UART/I²C data streams |
Applications
| Industrial HMI Panels | Home Audio Receivers |
|---|---|
Use Scenario: Touch-enabled control panel for PLC-connected machinery with real-time status display and parameter adjustment. IC Role / Device Role / Timing Role: Main controller executing HMI logic, managing serial comms to PLC, driving LCD via parallel bus, and sampling analog feedback signals. Use Value: Integrated 26-channel A/D, 128-pin I/O, and -40°C to +85°C rating enable direct mounting in industrial cabinets without external signal conditioning. | Use Scenario: Central control unit in multi-zone AV receiver handling HDMI CEC commands, IR remote decoding, and audio DSP coordination. IC Role / Device Role / Timing Role: System manager coordinating HDMI-CEC handshaking, IR waveform recognition, and real-time clock synchronization across zones. Use Value: Native CEC transceiver, dual IR receivers, and RTC eliminate discrete components - reducing BOM cost and layout complexity. |
| Office Equipment Controllers | Smart Home Gateways |
Use Scenario: Embedded controller in multifunction printers managing paper path sensors, motor sequencing, and USB host interface. IC Role / Device Role / Timing Role: Real-time motion controller using Timer B units for stepper/servo timing and A/D for toner level and temperature sensing. Use Value: Six 16-bit Timer B modules with pulse period/width measurement provide precise motor phase control without external timing ICs. | Use Scenario: Protocol translation hub aggregating Zigbee, Z-Wave, and IR devices into a unified cloud-connected interface. IC Role / Device Role / Timing Role: Bridge processor handling IR command parsing, low-speed wireless coexistence timing, and secure local firmware updates. Use Value: On-chip debug, 47 KB data flash for OTA update storage, and CEC/IR support enable robust field-upgradable edge intelligence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F3651TNFC#U0 | Same 768 KB flash and 128-pin LQFP package but rated for -20°C to +85°C only | Limited to commercial indoor environments; lacks extended industrial temperature qualification | Select R5F3651TDFC#U0 when operating in unheated factory floors or outdoor enclosures requiring -40°C startup |
| R5F3650TDFC#U0 | Same -40°C to +85°C rating and package, but reduced 640 KB program flash and 47 KB data flash | Suitable for firmware with smaller code footprint and fewer field-upgradable parameters | Choose R5F3650TDFC#U0 where memory headroom is not required and cost optimization is prioritized |
Compared with R5F3651TNFC#U0, R5F3651TDFC#U0 adds guaranteed operation down to -40°C - essential for cold-environment reliability; versus R5F3650TDFC#U0, it provides 128 KB extra program flash for future feature expansion or safety-certified redundancy.
Availability
R5F3651TDFC#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, home audio receivers, office equipment controllers, and smart home gateways requiring stable component supply across long product lifecycles.
Supply support for R5F3651TDFC#U0 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The M16C/65 Group targets cost-sensitive, high-reliability embedded applications requiring rich peripheral integration and industrial-grade environmental resilience - especially in audio/video, motor control, and human-machine interface systems.
FAQ
What is the maximum operating frequency of the R5F3651TDFC#U0?
The R5F3651TDFC#U0 operates at a maximum frequency of 32 MHz when supplied with 2.7–5.5 V. This speed is achievable across its full industrial temperature range (-40°C to +85°C), enabling deterministic real-time execution in motor control and industrial automation firmware. The minimum instruction execution time is 31.25 ns under these conditions.
Does the R5F3651TDFC#U0 support HDMI CEC functionality?
Yes, the R5F3651TDFC#U0 includes dedicated CEC transmit/receive circuitry compliant with HDMI CEC standards, including arbitration loss detection and automatic ACK output. Pin P8_5 serves as the shared CEC I/O, allowing system-level one-touch play and power coordination in AV receivers and set-top boxes without external transceivers.
What package type and pin count does the R5F3651TDFC#U0 use?
The R5F3651TDFC#U0 uses a 128-pin LQFP package designated PLQP0128KB-A (formerly 128P6Q-A), measuring 20 mm × 20 mm with 0.5 mm pitch. This package supports full I/O availability, external bus expansion, and thermal performance suitable for industrial and consumer applications requiring high peripheral density.
How much flash and RAM memory does the R5F3651TDFC#U0 integrate?
The R5F3651TDFC#U0 integrates 768 KB of program flash memory, 16 KB of RAM, and 47 KB of data flash memory. The data flash is rated for 10,000 erase/write cycles and supports secure firmware updates and parameter storage - critical for field-upgradable industrial and smart home devices.
Is on-chip debugging supported on the R5F3651TDFC#U0?
Yes, the R5F3651TDFC#U0 includes full on-chip debug capability via JTAG interface, supporting real-time breakpoints, watchpoints, and address match interrupts. It also enables in-system flash rewriting - allowing firmware validation, production programming, and field updates without removing the R5F3651TDFC#U0 from the target board.
R5F3651TDFC#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- M16C™ M16C/60/65
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- M16C/60
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- EBI/EMI, I2C, SIO, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 111
- Program Memory Size:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 47K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 26x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F3651TDFC#U0 FAQ
1.How can I place an order for R5F3651TDFC#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F3651TDFC#U0 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 R5F3651TDFC#U0 reliable?
The price and inventory of R5F3651TDFC#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F3651TDFC#U0 is usually 5 days.
3.What payment methods are accepted for R5F3651TDFC#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F3651TDFC#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F3651TDFC#U0?
R5F3651TDFC#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F3651TDFC#U0 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 R5F3651TDFC#U0?
For technical support, including R5F3651TDFC#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F3651TDFC#U0 requirements.
6.How does Aetrix verify that R5F3651TDFC#U0 is sourced from the original manufacturer or authorized distributors?
All R5F3651TDFC#U0 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 R5F3651TDFC#U0 meets industry standards.
7.What is the process for return or replacement of R5F3651TDFC#U0?
All R5F3651TDFC#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F3651TDFC#U0, 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 R5F3651TDFC#U0 part is unused and in its original packaging.
Return procedure for R5F3651TDFC#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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