My Inquiry
My Account
Renesas R5F3651TDFC#UA
- Part No.:
- R5F3651TDFC#UA
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F3651TDFC#UA.pdf
- Description:
- 16BIT MCU M16C/65
- Quantity:
- Payment:
- Shipping:
Inventory:1,203
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F3651TDFC#UA from Renesas is a 16-bit M16C/65 microcontroller with 256 KB flash ROM, 16 KB RAM, and integrated 10-bit ADC (26 channels), 8-bit DAC (1 channel), and multiple timer modules including 11-channel 16-bit TimerA/B, PWM, and intelligent I/O. It operates at 40 MHz (100 ns min instruction time) across 3.0–5.5 V and supports industrial temperature range (−40 to +85 °C) in a 100-pin LQFP package.
For engineers reviewing the R5F3651TDFC#UA datasheet, R5F3651TDFC#UA pinout, R5F3651TDFC#UA application, or R5F3651TDFC#UA equivalent, key selection criteria include its M16C/65 core architecture, on-chip data flash (4 KB, 10k program/erase cycles), low-voltage detection (LVD), subclock RTC support, and UART/I²C/SSU serial interfaces for embedded control in resource-constrained industrial systems.
Technical Context
The R5F3651TDFC#UA implements the M16C/65 CPU core with 108 basic instructions and 100 ns minimum instruction execution time at 40 MHz. It integrates a 4-channel DMACII with startup capability from any peripheral interrupt source and four clock generation circuits (main clock, PLL, subclock, on-chip oscillator).
It features dedicated hardware for motor control-including 2-phase encoder input, 3-phase inverter control, and dead-time timer-alongside voltage detection (POR and LVD), oscillation stop detection, and programmable security via ID code check and ROM code protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/65 16-bit RISC core with 108 instructions and 100 ns min execution time at 40 MHz |
| Memory | 256 KB flash ROM + 4 KB data flash (10k erase cycles); 16 KB RAM |
| Analog Peripherals | 10-bit ADC × 26 channels with sample-and-hold; 8-bit DAC × 1 channel |
| Timers | 11-channel 16-bit TimerA/B; 19-channel intelligent I/O timer; 24-channel timer/PWM output |
| Serial Interfaces | 5 UART channels; 1 I²C-bus interface; 1 SSU (synchronous serial unit) |
| Operating Range | 3.0–5.5 V supply; −40 to +85 °C ambient temperature |
| Package | 100-pin LQFP (PLQP0100KB-A), 14 × 14 mm body, 0.5 mm pitch |
Pinout & Package
Package: PLQP0100KB-A - 100-pin plastic quad flat package, 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 3.0–5.5 V supply domains with separate analog/digital ground pins for noise isolation |
| XT1, XT2 | Main system clock input/output | Supports external crystal/resonator up to 20 MHz; enables precise timing for real-time control loops |
| CLKP, CLKM | PLL clock input | Differential input for high-noise immunity when using external clock source for PLL multiplication |
| AD0–AD25 | Analog input channels | 26 dedicated ADC input pins with internal sample-and-hold; configurable as general-purpose I/O when unused |
| DA0 | DAC output | Single 8-bit voltage-output DAC channel usable for analog setpoint generation or calibration signals |
| TXD0–TXD4, RXD0–RXD4 | UART transmit/receive | Five independent full-duplex UART interfaces supporting asynchronous communication with selectable baud rates |
| SCL, SDA | I²C-bus interface | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C master/slave support for sensor and EEPROM interfacing |
| SSCK, MOSI, MISO, SS | SSU interface | Full-duplex synchronous serial unit compatible with SPI-like protocols for flash memory or display drivers |
| INTP0–INTP7 | External interrupt inputs | Eight edge-triggered interrupt pins with priority control for responsive event handling (e.g., emergency stop) |
| MTIOC0A–MTIOC3B | Motor control I/O | Eight dedicated pins for 3-phase inverter gate drive, encoder feedback, and dead-time insertion logic |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Data Flash | 4 KB reprogrammable flash memory with 10,000 erase/write cycles for firmware updates and parameter storage without external EEPROM |
| Intelligent I/O Timer | 19-channel timer-peripheral tightly coupled to GPIO, enabling hardware-based PWM, capture, and waveform generation without CPU intervention |
| Subclock RTC Support | Integrated subclock oscillator (32.768 kHz) with RTC function allows accurate timekeeping during low-power sleep modes |
| Program Security | ID code check and ROM code protect functions prevent unauthorized readout or cloning of embedded firmware |
| LVD with Reset | Configurable low-voltage detection circuit triggers reset or interrupt below user-defined thresholds (e.g., 3.8 V or 2.7 V) to safeguard operation during brownout |
Applications
| Industrial Motor Control | Factory Automation PLC |
|---|---|
Use Scenario: Closed-loop speed and position control of 3-phase AC induction motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Primary controller executing FOC (field-oriented control) algorithms, managing gate driver timing, and sampling current/voltage feedback via integrated ADC/DAC. Use Value: On-chip 3-phase inverter control logic, dead-time timer, and 26-channel ADC reduce BOM count and PCB area versus discrete MCU + analog front-end solutions. | Use Scenario: Modular I/O processing unit in DIN-rail mounted PLCs handling digital input debouncing, analog sensor scaling, and relay actuation sequencing. IC Role / Device Role / Timing Role: Real-time deterministic task scheduler with hardware timers for scan-cycle timing, UART for Modbus RTU communication, and I²C for expansion module configuration. Use Value: Integrated 5 UARTs and I²C enable native support for multiple fieldbus slaves and HMI interfaces without external transceivers or bridge ICs. |
| Smart Power Metering | Medical Diagnostic Equipment |
Use Scenario: Residential energy meter with harmonic analysis, tamper detection, and LCD display driving. IC Role / Device Role / Timing Role: System-on-chip performing metrology calculations (via ADC oversampling), secure firmware updates (data flash), and human-interface management (LCD, LED, buttons). Use Value: 4 KB data flash stores calibration coefficients and usage logs; LVD ensures reliable shutdown during mains dips; RTC maintains billing timestamps across power loss. | Use Scenario: Portable ultrasound probe controller requiring low-noise analog signal conditioning and precise timing for echo acquisition. IC Role / Device Role / Timing Role: Timing-critical subsystem managing transducer pulsing, ADC sampling synchronization, and DMA-driven data transfer to host processor. Use Value: Sample-and-hold ADC with 26 channels supports multi-sensor monitoring (temperature, pressure, battery); intelligent I/O timers generate precise pulse widths for piezoelectric excitation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F3651EDFC#UA | Same M16C/65 core, but 128 KB flash ROM and 12 KB RAM; no data flash | Lower-cost option for simpler control tasks without field-upgradable parameters or logging | Select when firmware size ≤128 KB and runtime parameter storage is handled externally |
| R5F3652TDFC#UA | Same package and pinout; adds CAN 2.0B controller and increases ADC to 34 channels | Required for automotive body control modules or industrial networks needing CAN bus integration | Choose when CAN communication is mandatory and additional analog sensing is needed |
Compared with R5F3651TDFC#UA, R5F3651EDFC#UA reduces memory capacity and eliminates data flash-suitable for cost-sensitive fixed-function designs-while R5F3652TDFC#UA extends connectivity and sensing capability at identical footprint, making it ideal for CAN-based distributed control systems.
Availability
R5F3651TDFC#UA is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, smart power metering, and medical diagnostic equipment requiring stable component supply over extended product lifecycles.
Supply support for R5F3651TDFC#UA 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 R5F3651TDFC#UA belongs to the M16C/65 group within the legacy M16C family, designed specifically for cost-optimized, real-time embedded control in industrial automation and motor drive applications where deterministic timing and mixed-signal integration are critical.
FAQ
What is the maximum operating frequency of the R5F3651TDFC#UA?
The R5F3651TDFC#UA operates at a maximum CPU frequency of 40 MHz, achieving a minimum instruction execution time of 100 ns. This frequency is derived from the internal PLL locked to an external crystal or oscillator input, and is validated across the full −40 to +85 °C temperature range and 3.0–5.5 V supply voltage.
Does the R5F3651TDFC#UA include on-chip debug support?
Yes, the R5F3651TDFC#UA includes on-chip debug functionality via the single-wire debug interface (SWD), compatible with Renesas E1/E20 emulators. This enables full breakpoint, watchpoint, and memory inspection capabilities without requiring dedicated debug pins beyond the standard SWDIO and SWCLK signals.
Can the R5F3651TDFC#UA operate from a 3.3 V supply only?
Yes, the R5F3651TDFC#UA supports 3.0–5.5 V operation, making it fully compatible with 3.3 V systems. All I/O pins are 5 V tolerant when configured as inputs, allowing direct interfacing with legacy 5 V peripherals without level shifters-critical for retrofit industrial designs.
How many UART interfaces does the R5F3651TDFC#UA provide?
The R5F3651TDFC#UA provides five independent UART channels (UART0–UART4), each with full-duplex capability, programmable baud rate generators, and support for framing, parity, and break detection. These are commonly used for Modbus RTU, host communication, and multi-sensor telemetry in industrial gateways.
Is there a drop-in replacement for the R5F3651TDFC#UA with CAN interface?
No pin-compatible drop-in replacement exists within the M16C/65 family. However, the R5F3652TDFC#UA shares identical pinout, package, and core architecture while adding a CAN 2.0B controller-making it a direct layout-compatible upgrade when CAN bus integration is required.
R5F3651TDFC#UA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- M16C™ M16C/60/65
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- 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:
- 8K x 8
- 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#UA FAQ
1.How can I place an order for R5F3651TDFC#UA through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F3651TDFC#UA 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#UA reliable?
The price and inventory of R5F3651TDFC#UA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F3651TDFC#UA is usually 5 days.
3.What payment methods are accepted for R5F3651TDFC#UA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F3651TDFC#UA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F3651TDFC#UA?
R5F3651TDFC#UA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F3651TDFC#UA 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#UA?
For technical support, including R5F3651TDFC#UA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F3651TDFC#UA requirements.
6.How does Aetrix verify that R5F3651TDFC#UA is sourced from the original manufacturer or authorized distributors?
All R5F3651TDFC#UA 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#UA meets industry standards.
7.What is the process for return or replacement of R5F3651TDFC#UA?
All R5F3651TDFC#UA units undergo pre-shipment inspection (PSI). If there is an issue with R5F3651TDFC#UA, 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#UA part is unused and in its original packaging.
Return procedure for R5F3651TDFC#UA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F3651TDFC#UA Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
