Renesas R5F3651MCNFC#V0
- Part No.:
- R5F3651MCNFC#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F3651MCNFC#V0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 128LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F3651MCNFC#V0 from Renesas Electronics is a 16-bit M16C/60 Series CPU core microcontroller with 512 KB program flash, 16 KB RAM, and 31 KB data flash in a 128-pin LQFP (PLQP0128KB-A) package. It delivers 32 MHz operation at 2.7–5.5 V, integrates 26-channel 10-bit A/D, dual 8-bit D/A, CEC interface, and three-phase motor control timers - deployed in industrial HMI and audio/video subsystems.
For engineers reviewing the R5F3651MCNFC#V0 datasheet, R5F3651MCNFC#V0 pinout, R5F3651MCNFC#V0 application, or R5F3651MCNFC#V0 equivalent, key selection criteria include its 128-pin LQFP footprint, CEC compliance for HDMI-adjacent control, real-time clock with calendar functions, and on-chip dead-time timer for inverter gate drive.
Technical Context
The R5F3651MCNFC#V0 implements the M16C/60 Series CPU core with 16×16-bit multiplier and 32-bit MAC instruction, enabling deterministic motor control loops. Its memory architecture supports 1 MB address space expandable to 4 MB via external bus with 0–8 wait states and 4 chip selects.
Peripheral integration includes six UART/serial channels (UART0–2, UART5–7), multi-master I²C, two remote control signal receivers (32 kHz operation), and dedicated CEC transceiver circuitry compliant with HDMI CEC v1.4 for consumer electronics interoperability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/60 Series with 16×16-bit multiplier and 32-bit MAC instruction |
| Max Operating Frequency | 32 MHz at VCC1 = VCC2 = 2.7–5.5 V; min instruction time = 31.25 ns |
| Memory | 512 KB program flash + 16 KB RAM + 31 KB data flash (10,000 erase cycles) |
| A/D Converter | 10-bit resolution × 26 channels; conversion time = 1.72 µs with sample-and-hold |
| CEC Interface | Dedicated CEC transmit/receive with arbitration loss detection and ACK auto-output at 32 kHz |
| Package | 128-pin LQFP (PLQP0128KB-A); 14 mm × 14 mm, 0.4 mm pitch |
| Operating Temperature | −20°C to +85°C (N-version) |
Pinout & Package
128-pin LQFP (PLQP0128KB-A) with dual power domains: VCC1 powers core/peripherals (2.7–5.5 V), VCC2 powers external bus pins (2.7 V to VCC1). AVCC/AVSS supply analog circuitry; CNVSS configures single-chip vs. microprocessor mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Port 0 I/O / A/D input 0–7 | 8-bit general-purpose port with analog input capability for sensor interfacing |
| P10_0–P10_7 | Port 10 I/O / A/D input 0–7 / Key interrupt inputs | 8-channel analog input plus KI0–KI3 key scan support for front-panel HMI |
| P5_0–P5_7 | Bus control: WR, RD, BCLK, ALE, HLDA, HOLD, RDY/CLKOUT | Full external bus interface supporting 8/16-bit data width and up to 4 MB expansion |
| P6_0–P6_7 | Serial interface: UART0–1, CLK0–1, SCL0–1, SDA0–1, RTCOUT, CTS/RTS | Dual full-duplex UART with hardware flow control and real-time clock output |
| P7_0–P7_7 | Timer A/B outputs/inputs: TA0–TA4, TB0–TB5, CLK2–CLK5 | Five 16-bit Timer A outputs and six Timer B inputs for PWM, encoder, and motor phase timing |
| P8_5 | NMI / SD / CEC | Non-maskable interrupt input, serial download enable, and CEC signal I/O on shared pin |
Key Features
| Feature | Design Value |
|---|---|
| Three-phase motor control | On-chip dead-time timer + coordinated outputs from Timer A1/A2/A4 and Timer B2 for inverter gate drive |
| CEC compliance | Hardware CEC transceiver meeting HDMI CEC v1.4 spec; no external transceiver required |
| Real-time clock | Calendar-based RTC counting seconds, minutes, hours, and days of week with battery backup support |
| Remote control receiver | Two independent IR receivers with 4-waveform pattern matching (header/data0/data1/special) at 32 kHz |
| Debug & security | On-chip debug interface + ROM code protect + ID code check for firmware IP protection |
Applications
| Audio/Video Control Subsystem | HDMI-CEC Enabled Consumer Device |
|---|---|
Use Scenario: Embedded controller managing IR remote decoding, display driver timing, and audio codec configuration in flat-panel TVs. IC Role / Device Role / Timing Role: Primary system MCU handling real-time IR waveform capture, PWM backlight control, and HDMI CEC command routing. Use Value: Integrated CEC transceiver and 26-channel A/D eliminate external components for IR sensor arrays and panel voltage monitoring. | Use Scenario: System controller in Blu-ray players coordinating disc drive, video decoder, and HDMI handshaking. IC Role / Device Role / Timing Role: Central MCU executing CEC protocol stack, managing UART-based device discovery, and synchronizing audio/video clocks. Use Value: Hardware CEC engine ensures sub-100 µs response latency for system-wide power-on/off commands per HDMI spec. |
| Industrial HMI Panel | Motor Drive Auxiliary Controller |
Use Scenario: Front-panel controller in PLC operator terminals with touch keys, LED indicators, and serial communication to main CPU. IC Role / Device Role / Timing Role: Dedicated HMI processor running key-scan logic, LED PWM dimming, and RS-485 Modbus RTU interface. Use Value: 111 CMOS I/O ports with selectable pull-ups simplify direct connection to mechanical keys and status LEDs without external buffers. | Use Scenario: Auxiliary controller in HVAC inverter drives managing gate driver timing, fault sensing, and thermal monitoring. IC Role / Device Role / Timing Role: Safety-critical peripheral manager generating complementary PWM with programmable dead time and monitoring overtemperature interrupts. Use Value: On-chip dead-time timer ensures precise, jitter-free gate drive signals - critical for preventing shoot-through in IGBT half-bridges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F3651KCNFC#V0 | 384 KB program flash, 31 KB data flash, same 128-pin LQFP package and peripheral set | Lower flash capacity suits cost-sensitive designs with smaller firmware footprints | Select when application firmware fits within 384 KB and BOM cost optimization is prioritized |
| R5F3651NCNFC#V0 | 512 KB program flash, 47 KB data flash, identical package and peripherals | Higher data flash enables extended logging or field-upgradeable parameter storage | Choose when robust non-volatile parameter retention across 100k+ cycles is required |
Compared with R5F3651KCNFC#V0, the R5F3651MCNFC#V0 provides 128 KB more program flash for complex control algorithms; compared with R5F3651NCNFC#V0, it trades 16 KB of data flash for identical program capacity - optimizing for firmware size over long-term parameter logging.
Availability
R5F3651MCNFC#V0 is available at Aetrix Electronics and suitable for industrial HMI, consumer audio/video subsystems, and motor control auxiliary functions requiring stable component supply across extended product lifecycles.
Supply support for R5F3651MCNFC#V0 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, and power solutions for automotive, industrial, and IoT markets.
The M16C/65C Group targets cost-sensitive, high-reliability embedded systems requiring rich peripheral integration, CEC compliance, and deterministic real-time performance - especially in consumer electronics and industrial HMIs.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F3651MCNFC#V0?
The R5F3651MCNFC#V0 operates at up to 32 MHz with VCC1 and VCC2 both supplied between 2.7 V and 5.5 V. Its minimum instruction execution time is 31.25 ns under these conditions. The dual-supply architecture allows VCC2 to interface with external 3 V or 5 V buses independently of VCC1, enhancing system-level voltage domain flexibility.
Does the R5F3651MCNFC#V0 include hardware support for HDMI CEC functionality?
Yes, the R5F3651MCNFC#V0 integrates dedicated CEC transmit/receive circuitry compliant with HDMI CEC v1.4, including arbitration loss detection and automatic ACK output. This eliminates the need for external CEC transceivers in TV, set-top box, or AV receiver designs where HDMI-adjacent control is required.
How many analog-to-digital converter channels does the R5F3651MCNFC#V0 support, and what is their resolution?
The R5F3651MCNFC#V0 features a 10-bit A/D converter with 26 input channels, including sample-and-hold capability. Conversion time is specified at 1.72 µs, enabling high-speed acquisition for motor current sensing, temperature monitoring, or audio signal analysis in real-time embedded applications.
What package type and pin count does the R5F3651MCNFC#V0 use?
The R5F3651MCNFC#V0 is housed in a 128-pin LQFP package designated PLQP0128KB-A (previous code: 128P6Q-A), measuring 14 mm × 14 mm with 0.4 mm lead pitch. This package supports full external bus expansion, 111 general-purpose I/O pins, and dedicated analog/CEC/power domains.
Can the R5F3651MCNFC#V0 be used for three-phase motor control applications?
Yes, the R5F3651MCNFC#V0 includes hardware features specifically for three-phase motor control: coordinated outputs from Timer A1, A2, A4 and Timer B2, plus an on-chip dead-time timer. These enable precise generation of complementary PWM signals for inverter gate drivers while preventing shoot-through faults in BLDC or induction motor drives.
R5F3651MCNFC#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- M16C™ M16C/60/65C
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 31K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 26x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F3651MCNFC#V0 FAQ
1.How can I place an order for R5F3651MCNFC#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F3651MCNFC#V0 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 R5F3651MCNFC#V0 reliable?
The price and inventory of R5F3651MCNFC#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F3651MCNFC#V0 is usually 5 days.
3.What payment methods are accepted for R5F3651MCNFC#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F3651MCNFC#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F3651MCNFC#V0?
R5F3651MCNFC#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F3651MCNFC#V0 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 R5F3651MCNFC#V0?
For technical support, including R5F3651MCNFC#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F3651MCNFC#V0 requirements.
6.How does Aetrix verify that R5F3651MCNFC#V0 is sourced from the original manufacturer or authorized distributors?
All R5F3651MCNFC#V0 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 R5F3651MCNFC#V0 meets industry standards.
7.What is the process for return or replacement of R5F3651MCNFC#V0?
All R5F3651MCNFC#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F3651MCNFC#V0, 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 R5F3651MCNFC#V0 part is unused and in its original packaging.
Return procedure for R5F3651MCNFC#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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