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Renesas R5F3651EDFC#U0
- Part No.:
- R5F3651EDFC#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F3651EDFC#U0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,204
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Product details
Overview
R5F3651EDFC#U0 from Renesas is a 16-bit M16C/60 Series CPU core microcontroller with 256 KB program ROM, 20 KB RAM, and 4 KB × 2 blocks data flash, operating at up to 32 MHz (31.25 ns min instruction time) across −40°C to +85°C. It integrates 10-bit A/D (26 channels), dual 8-bit D/A, CEC interface, three-phase motor control timers, and real-time clock - deployed in industrial HMI, audio subsystems, and HDMI-CEC-enabled consumer electronics.
For engineers reviewing the R5F3651EDFC#U0 datasheet, R5F3651EDFC#U0 pinout, R5F3651EDFC#U0 application, or R5F3651EDFC#U0 equivalent, key selection criteria include its 128-pin LQFP package (PLQP0128KB-A), −40°C industrial temperature rating, on-chip dead-time timer for inverter control, and dual-voltage bus interface supporting 3 V/5 V mixed-signal system integration.
Technical Context
The R5F3651EDFC#U0 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 (including SIM mode), two remote control signal receivers (32 kHz operation), and CEC transceiver circuitry compliant with HDMI CEC standard - all synchronized to a flexible clock system with PLL, dual oscillators (125 kHz/40 MHz ±10%), and real-time clock.
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 and signal processing. |
| Max Operating Frequency | 32 MHz at VCC1 = VCC2 = 2.7–5.5 V; minimum instruction execution time 31.25 ns supports tight real-time deadlines. |
| Memory | 256 KB program ROM, 20 KB RAM, 8 KB data flash (4 KB × 2 blocks); supports in-system programming and secure code protection. |
| A/D Converter | 10-bit resolution × 26 channels with sample-and-hold; conversion time 1.72 µs enables fast sensor sampling in closed-loop systems. |
| Timers | Timer A (5×16-bit) with encoder input & PWM; Timer B (6×16-bit) with pulse period/width measurement; on-chip dead-time timer for three-phase inverter safety. |
| CEC Interface | Hardware CEC transmit/receive with arbitration loss detection and ACK auto-output; operates at 32 kHz for HDMI-CEC compliance. |
| Package | 128-pin LQFP (PLQP0128KB-A, 14 mm × 14 mm, 0.4 mm pitch); supports industrial PCB layout with dual power domains (VCC1/VCC2). |
Pinout & Package
128-pin LQFP package (PLQP0128KB-A), with separate VCC1 (core/peripherals) and VCC2 (external bus) supply domains, AVCC/AVSS analog power rails, and dedicated CEC/NMI/RESET pins. Pin 1 marked per Renesas package drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P8_5 | NMI/SD/CEC | Non-maskable interrupt input; system debug serial download port; hardware CEC transceiver signal - shared function enables HDMI-CEC control without external transceiver. |
| P7_0 / P7_1 | TA0OUT / TA0IN | Timer A0 output and input; used for quadrature encoder feedback or PWM generation in motor control applications. |
| P9_3 / P9_4 | DA0 / DA1 | Dual 8-bit D/A converter outputs; provide analog reference or bias signals for audio DAC interfaces or sensor calibration circuits. |
| P10_0–P10_7 | AN0–AN7 | Eight dedicated A/D input channels; support simultaneous sampling of temperature, voltage, current, and position sensors in industrial monitoring. |
| P5_3 | BCLK | Bus clock input; synchronizes external memory access and peripheral transfers; configurable via frequency divider (1/2/4/8/16). |
| VCC1 / VCC2 | Power Supply | VCC1 powers core, analog, and most peripherals; VCC2 powers external bus interface - allows 3 V logic interfacing while core runs at 5 V. |
Key Features
| Feature | Design Value |
|---|---|
| Three-phase motor control | Integrated dead-time timer and complementary PWM outputs (TA1/TA2/TA4/TB2) enable direct gate drive for 3-phase inverters without external logic. |
| HDMI-CEC compliance | Dedicated CEC transceiver with 32 kHz clock, arbitration loss detection, and automatic ACK generation - eliminates need for discrete CEC PHY in TV/audio gear. |
| Real-time clock (RTC) | Hardware RTC counts seconds/minutes/hours/days-of-week; retains time during stop mode using sub-clock oscillator - critical for energy-efficient standby operation. |
| Remote control receiver | Two independent IR receiver circuits with 4-waveform pattern matching (header/data0/data1/special); supports NEC, RC-5, and custom protocols in consumer remotes. |
| Multi-master I²C interface | Single-channel I²C supporting multi-master arbitration and clock stretching; enables robust communication with EEPROMs, sensors, and display controllers in shared bus systems. |
Applications
| Industrial HMI Panel | Audio Subsystem Controller |
|---|---|
Use Scenario: Touchscreen-based operator interface for PLC-controlled machinery with temperature, pressure, and motor status monitoring. IC Role / Device Role / Timing Role: Main system controller executing HMI logic, sampling 26-channel A/D for sensor fusion, driving PWM outputs for backlight and fan control, and managing RS-485/UART comms. Use Value: Integrated 10-bit A/D (26 ch), dual D/A, and real-time clock reduce BOM count by eliminating external ADC, DAC, and RTC ICs - lowering cost and board space. | Use Scenario: Digital audio processor in AV receiver handling source switching, volume control, and HDMI-CEC command relay between connected devices. IC Role / Device Role / Timing Role: CEC protocol engine and system coordinator - receives CEC commands via P8_5, decodes them, and routes actions to audio DSP or relays to downstream HDMI sinks. Use Value: Hardware CEC transceiver with 32 kHz timing and ACK auto-output ensures full HDMI CEC compliance without firmware overhead or external transceiver IC. |
| Home Appliance Motor Control | Office Equipment Power Management |
Use Scenario: Inverter-driven compressor and fan control in smart air conditioner with variable-speed refrigeration cycle. IC Role / Device Role / Timing Role: Real-time motor controller generating 3-phase PWM with precise dead-time insertion using on-chip timers (TA1/TA2/TA4/TB2) and fault monitoring inputs. Use Value: On-chip dead-time timer and complementary PWM outputs eliminate external gate driver logic and timing components - improving reliability and reducing EMI from mismatched switching edges. | Use Scenario: Power sequencing and thermal management unit in multifunction printer, controlling DC-DC converters, fans, and fuser heater based on sensor readings. IC Role / Device Role / Timing Role: System supervisor managing power-on reset, voltage detection (3 points), watchdog timer, and thermal shutdown via A/D inputs and GPIO. Use Value: Integrated voltage detector with selectable trip levels and 15-bit watchdog timer with prescaler simplify power integrity design - no external supervisor IC required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F3651ENFC | Same 128-pin LQFP package and feature set, but rated for −20°C to +85°C operating temperature. | Suitable for commercial-grade audio/video equipment where extended low-temperature operation is not required. | Select R5F3651ENFC when industrial −40°C rating is unnecessary and cost optimization is prioritized. |
| R5F3650EDFB | 100-pin LQFP (PLQP0100KB-A), reduced I/O count (85 CMOS ports vs. 111), same −40°C rating and memory size (256 KB/20 KB). | Fits space-constrained designs like compact remote controls or small-format displays where full 128-pin I/O is unused. | Choose R5F3650EDFB when board area is limited and peripheral count can be reduced without sacrificing temperature range or memory. |
Compared with R5F3651ENFC, the R5F3651EDFC#U0 adds −40°C operation for harsh environments; compared with R5F3650EDFB, it provides 26 additional I/O pins and full 128-pin peripheral routing flexibility - making it optimal for complex industrial HMI and motor control systems requiring maximum connectivity and ruggedness.
Availability
R5F3651EDFC#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, audio subsystem controllers, and home appliance motor drives requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F3651EDFC#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The M16C/65 Group targets cost-sensitive, high-reliability embedded applications requiring real-time control, mixed-signal integration, and industrial temperature operation - especially in consumer electronics, office equipment, and factory automation.
FAQ
What is the operating temperature range of the R5F3651EDFC#U0?
The R5F3651EDFC#U0 is rated for −40°C to +85°C operation, validated per Renesas specification R01DS0031EJ0210 Rev.2.10. This extended industrial temperature range supports deployment in HVAC systems, factory-floor HMIs, and outdoor audio enclosures where ambient conditions exceed commercial limits. The device maintains full functionality across this range without derating.
Does the R5F3651EDFC#U0 support hardware CEC functionality?
Yes, the R5F3651EDFC#U0 includes dedicated CEC transmit/receive circuitry compliant with HDMI CEC standards, with hardware features including arbitration loss detection and automatic ACK output. Pin P8_5 serves as the bidirectional CEC signal line, and the internal 32 kHz oscillator provides precise timing - eliminating need for external CEC PHY in TV, soundbar, or AV receiver designs.
What package type and pin count does the R5F3651EDFC#U0 use?
The R5F3651EDFC#U0 uses a 128-pin LQFP package designated PLQP0128KB-A (formerly 128P6Q-A), measuring 14 mm × 14 mm with 0.4 mm lead pitch. This package supports dual power domains (VCC1/VCC2), separate analog supplies (AVCC/AVSS), and 111 programmable CMOS I/O ports - enabling high-density mixed-signal system integration.
How many A/D and D/A channels does the R5F3651EDFC#U0 integrate?
The R5F3651EDFC#U0 integrates a 10-bit A/D converter with 26 input channels and two independent 8-bit D/A converter circuits. The A/D includes sample-and-hold and achieves 1.72 µs conversion time, while the D/A outputs (P9_3/P9_4) support analog biasing, audio reference generation, or sensor calibration - all without external converters.
Can the R5F3651EDFC#U0 perform three-phase motor control without external timers?
Yes, the R5F3651EDFC#U0 supports full three-phase inverter control using on-chip resources: Timer A1/A2/A4 and Timer B2 provide complementary PWM outputs, and an integrated dead-time timer ensures safe switching edge separation. This eliminates external gate driver logic and discrete dead-time circuits - simplifying BOM and improving timing accuracy in compressor, pump, and fan drives.
R5F3651EDFC#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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 20K 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:
R5F3651EDFC#U0 FAQ
1.How can I place an order for R5F3651EDFC#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F3651EDFC#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 R5F3651EDFC#U0 reliable?
The price and inventory of R5F3651EDFC#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F3651EDFC#U0 is usually 5 days.
3.What payment methods are accepted for R5F3651EDFC#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F3651EDFC#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F3651EDFC#U0?
R5F3651EDFC#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F3651EDFC#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 R5F3651EDFC#U0?
For technical support, including R5F3651EDFC#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F3651EDFC#U0 requirements.
6.How does Aetrix verify that R5F3651EDFC#U0 is sourced from the original manufacturer or authorized distributors?
All R5F3651EDFC#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 R5F3651EDFC#U0 meets industry standards.
7.What is the process for return or replacement of R5F3651EDFC#U0?
All R5F3651EDFC#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F3651EDFC#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 R5F3651EDFC#U0 part is unused and in its original packaging.
Return procedure for R5F3651EDFC#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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