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Renesas R5F3651NCDFC#V0
- Part No.:
- R5F3651NCDFC#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F3651NCDFC#V0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F3651NCDFC#V0 from Renesas is a 16-bit M16C/60 Series CPU core microcontroller with 512 KB program ROM, 47 KB data flash, and 16 KB RAM in a 128-pin LQFP (PLQP0128KB-A) package. It integrates A/D (10-bit × 26), D/A (8-bit × 2), CEC, real-time clock, three-phase motor control timers, and operates at 32 MHz across −40°C to +85°C for industrial embedded control.
For engineers reviewing the R5F3651NCDFC#V0 datasheet, R5F3651NCDFC#V0 pinout, R5F3651NCDFC#V0 application, or R5F3651NCDFC#V0 equivalent, key selection criteria include its dual-voltage bus interface (VCC1/VCC2), on-chip dead-time timer for inverter control, CEC compliance for HDMI-CEC systems, and 128-pin LQFP mechanical compatibility with legacy M16C/65C designs.
Technical Context
The R5F3651NCDFC#V0 implements the M16C/60 CPU core with 16×16-bit multiplier and MAC instruction support, 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, plus five 16-bit Timer A units with encoder input and programmable output modes.
It features a multi-master I²C-bus interface, six UART/SIO channels (UART0–UART2, UART5–UART7), two remote control signal receivers (32 kHz operation), and dedicated CEC transmit/receive circuitry with arbitration loss detection and automatic ACK output - all synchronized to the 32 kHz sub-clock domain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/60 Series with 16×16-bit multiplier and MAC instruction; enables high-speed arithmetic for motor control algorithms |
| Max Operating Frequency | 32 MHz at VCC1 = VCC2 = 2.7–5.5 V; minimum instruction execution time 31.25 ns |
| Memory | 512 KB program ROM, 47 KB data flash (10,000 erase cycles), 16 KB RAM |
| A/D Converter | 10-bit resolution × 26 channels with sample-and-hold; conversion time 1.72 µs |
| D/A Converter | 8-bit resolution × 2 circuits; supports analog feedback or reference generation |
| Package | 128-pin LQFP (PLQP0128KB-A); 20 mm × 20 mm body, 0.5 mm pitch |
| Operating Temperature | −40°C to +85°C; qualified for industrial environments with extended thermal margin |
| CEC Function | HDMI CEC-compliant transceiver with 32 kHz clock source, arbitration loss detection, and automatic ACK output |
Pinout & Package
Package: 128-pin LQFP (PLQP0128KB-A), 20 mm × 20 mm, 0.5 mm pitch, exposed pad not specified. Dual power supply: VCC1 powers core/peripherals (2.7–5.5 V), VCC2 powers external bus pins (2.7 V to VCC1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Port 0 I/O / A/D inputs AN0_0–AN0_7 | 8-bit general-purpose port with analog input capability; used for sensor interfacing or digital control |
| P10_0–P10_7 | Port 10 I/O / A/D inputs AN0–AN7 / key inputs KI0–KI3 | 8-bit port supporting both analog acquisition and matrix keypad scanning |
| P7_0/P7_1 | TA0OUT/TA0IN (Timer A0) / TXD2/RXD2 | Shared UART2 and timer channel; enables simultaneous serial comms and timing capture |
| P8_5 | NMI / SD / CEC | Multi-function pin: non-maskable interrupt input, serial download mode select, and CEC bidirectional data line |
| P9_3/P9_4 | DA0/DA1 / TB3IN/TB4IN / PWM0/PWM1 | Dual 8-bit D/A outputs also serve as PWM channels and timer B inputs for flexible analog/digital control |
| VCC1/VCC2 | Core & bus power supplies | Independent voltage domains allow interfacing with 3.3 V logic while running core at 5 V, or vice versa |
Key Features
| Feature | Design Value |
|---|---|
| Three-phase motor control circuit | Integrated dead-time timer and coordinated outputs (TA1, TA2, TA4, TB2) eliminate need for external gate drivers in inverter designs |
| CEC transceiver | Hardware-accelerated HDMI Consumer Electronics Control compliant with IEC 62379-3; reduces firmware overhead for TV/AVR remote command handling |
| Real-time clock (RTC) | Full calendar counter (seconds, minutes, hours, weekday, date) with independent 32 kHz sub-clock domain; retains time during stop mode |
| Remote control signal receiver | Two independent 32 kHz receivers with 4-waveform pattern matching (header/data0/data1/special); supports NEC, RC-5, and custom IR protocols |
| On-chip debug & flash rewrite | Full on-chip debugging with 4 address match interrupts; allows field firmware updates without external programmer |
| Multi-master I²C-bus interface | Single-channel I²C supporting master/slave roles and arbitration; enables direct connection to sensors, EEPROMs, and PMICs without GPIO bit-banging |
Applications
| Industrial Motor Drive | HDMI-CEC Enabled AV Equipment |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC or induction motors in HVAC blowers, pumps, and compressors. IC Role / Device Role / Timing Role: Primary controller executing FOC or scalar control algorithms, generating PWM gate signals with hardware dead-time insertion, and monitoring current/voltage via integrated A/D. Use Value: Eliminates external dead-time generator and reduces BOM count by integrating motor timing, analog sensing, and bus interface in one 128-pin LQFP device. | Use Scenario: HDMI-connected TV, soundbar, or AVR implementing system-wide remote control via CEC commands (e.g., "One Touch Play", "System Standby"). IC Role / Device Role / Timing Role: CEC protocol handler and system coordinator; receives/transmits CEC frames using dedicated hardware, manages arbitration, and triggers system state transitions. Use Value: Hardware CEC engine ensures reliable frame timing and collision recovery per HDMI spec, avoiding timing jitter from software-only implementations. |
| Industrial HMI Controller | Legacy Equipment Retrofit |
Use Scenario: Panel-mounted human-machine interface for PLC-controlled machinery with keypad, display backlight, and sensor readouts. IC Role / Device Role / Timing Role: Central HMI processor managing key scan (KI0–KI3), analog sensor inputs (AN0–AN26), PWM dimming (PWM0/PWM1), and UART-based communication to host PLC. Use Value: Single-chip integration of 26-channel A/D, 8-bit D/A, 111 GPIO, and multiple UARTs replaces discrete ADC, DAC, and GPIO expanders in cost-sensitive industrial panels. | Use Scenario: Drop-in replacement for obsolete M16C/65C variants in existing production equipment requiring extended temperature range and flash endurance. IC Role / Device Role / Timing Role: Pin-compatible upgrade path (PLQP0128KB-A package) with identical memory map, peripheral register layout, and instruction set as legacy N-version parts. Use Value: Enables migration from −20°C to −40°C operating range and increases data flash endurance from 1,000 to 10,000 erase cycles without PCB redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F3651NCNFC#V0 | Same core, memory, and peripherals but rated for −20°C to +85°C; data flash endurance 10,000 cycles vs. 1,000 in older N versions | Targeted at commercial/industrial equipment not requiring extended low-temperature operation | Select when ambient operating temperature stays above −20°C and lifecycle requirements are less stringent |
| R5F3651MCDFC#V0 | Identical package and temperature grade, but reduced program ROM (512 KB → 384 KB) and data flash (47 KB → 31 KB); same 16 KB RAM | Suitable for applications with smaller firmware footprint and fewer non-volatile parameter storage needs | Choose when application code size fits within 384 KB and parameter logging/storage fits in 31 KB data flash |
Compared with R5F3651NCDFC#V0, R5F3651NCNFC#V0 offers identical functionality at lower temperature grade and higher data flash endurance, while R5F3651MCDFC#V0 provides cost-optimized memory configuration for space-constrained firmware - all sharing the same 128-pin LQFP footprint and peripheral feature set.
Availability
R5F3651NCDFC#V0 is available at Aetrix Electronics and suitable for industrial motor drives, HDMI-CEC enabled AV equipment, and legacy equipment retrofit programs requiring stable component supply and long-term lifecycle support.
Supply support for R5F3651NCDFC#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The M16C/65C Group is designed for cost-sensitive, high-reliability industrial control applications requiring integrated analog peripherals, motor timing, and legacy system compatibility - particularly where pin compatibility with earlier M16C devices is critical.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F3651NCDFC#V0?
The R5F3651NCDFC#V0 operates at up to 32 MHz with VCC1 and VCC2 both supplied between 2.7 V and 5.5 V. The minimum instruction execution time is 31.25 ns under these conditions. VCC2 may be set as low as 2.7 V even if VCC1 is at 5.5 V, enabling mixed-voltage bus interfacing.
Does the R5F3651NCDFC#V0 support hardware-based HDMI CEC functionality?
Yes, the R5F3651NCDFC#V0 includes dedicated CEC circuitry compliant with HDMI CEC standards. It supports CEC transmit/receive, arbitration loss detection, and automatic ACK output, all synchronized to a 32 kHz clock source - eliminating software timing dependencies for reliable CEC frame handling.
What are the A/D and D/A converter specifications of the R5F3651NCDFC#V0?
The R5F3651NCDFC#V0 integrates a 10-bit A/D converter with 26 input channels and sample-and-hold, achieving 1.72 µs conversion time. It also includes two independent 8-bit D/A converters, usable for analog feedback, reference generation, or PWM supplementation in motor and sensor applications.
How does the three-phase motor control capability work in the R5F3651NCDFC#V0?
The R5F3651NCDFC#V0 implements hardware-assisted three-phase inverter control using Timer A1, A2, A4 and Timer B2, with an on-chip dead-time timer that automatically inserts safe switching delays between complementary PWM outputs - preventing shoot-through in IGBT/MOSFET gate drive stages without external logic.
Is the R5F3651NCDFC#V0 pin-compatible with other M16C/65C Group devices in the same package?
Yes, the R5F3651NCDFC#V0 uses the PLQP0128KB-A (128P6Q-A) package and shares identical pinout, memory map, and peripheral register layout with other 128-pin M16C/65C Group MCUs - enabling drop-in replacement for functionally similar variants like R5F3651MCDFC#V0 or R5F3651ECDFC#V0 in existing PCB designs.
R5F3651NCDFC#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- M16C™ M16C/60/65C
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 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:
R5F3651NCDFC#V0 FAQ
1.How can I place an order for R5F3651NCDFC#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F3651NCDFC#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 R5F3651NCDFC#V0 reliable?
The price and inventory of R5F3651NCDFC#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F3651NCDFC#V0 is usually 5 days.
3.What payment methods are accepted for R5F3651NCDFC#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F3651NCDFC#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F3651NCDFC#V0?
R5F3651NCDFC#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F3651NCDFC#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 R5F3651NCDFC#V0?
For technical support, including R5F3651NCDFC#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F3651NCDFC#V0 requirements.
6.How does Aetrix verify that R5F3651NCDFC#V0 is sourced from the original manufacturer or authorized distributors?
All R5F3651NCDFC#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 R5F3651NCDFC#V0 meets industry standards.
7.What is the process for return or replacement of R5F3651NCDFC#V0?
All R5F3651NCDFC#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F3651NCDFC#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 R5F3651NCDFC#V0 part is unused and in its original packaging.
Return procedure for R5F3651NCDFC#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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