Renesas R5F10CLDCLFB#12
- Part No.:
- R5F10CLDCLFB#12
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10CLDCLFB#12.pdf
- Description:
- 16BIT MCU RL78(AUTO)/D1A LFQFP64
- Quantity:
- Payment:

- Shipping:

Inventory:1,795
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Product details
Overview
R5F10CLDCLFB#12 from Renesas Electronics is a 16-bit RL78/D1A microcontroller in a 64-pin LQFP package, featuring 128 KB flash memory, 8 KB RAM, and integrated 12-bit ADC with 24 channels. It operates at up to 32 MHz, supports on-chip debug, and targets low-power industrial control applications requiring real-time responsiveness and compact footprint.
For engineers reviewing the R5F10CLDCLFB#12 datasheet, R5F10CLDCLFB#12 pinout, R5F10CLDCLFB#12 application, or R5F10CLDCLFB#12 equivalent, this page delivers verified technical context, validated pin functions, confirmed peripheral integration (ADC, UART, I²C, timer arrays), and direct alternative part comparisons for rapid BOM evaluation and design-in decisions.
Technical Context
The R5F10CLDCLFB#12 implements the RL78 CPU core with 16-bit CISC architecture, supporting 1.6–5.5 V operation and ultra-low power modes (HALT, STOP, SNOOZE) down to 0.52 µA in deep standby. Its memory subsystem includes 128 KB on-chip flash with block erase and data flash functionality, plus 8 KB RAM with software wait-state control.
Peripherals include a 24-channel 12-bit ADC with programmable sampling time, three 16-bit timer arrays (TAU) with PWM output capability, two UARTs with LIN support, one I²C interface, and a 10-bit DAC. No CAN controller is integrated - this variant is explicitly designated "with no CAN" per Renesas' RL78/D1A User's Manual Rev.1.20 Section 1.4.3 and 1.6.3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC core, executes instructions in 1–2 clock cycles for deterministic real-time response |
| Max Clock Frequency | 32 MHz - enables sub-µs interrupt latency and high-speed sensor sampling in closed-loop control |
| Flash Memory | 128 KB - sufficient for complex firmware with bootloader, safety monitoring, and field-upgradable code |
| RAM | 8 KB - supports multi-tasking RTOS stacks, communication buffers, and real-time data logging |
| ADC Resolution & Channels | 12-bit, 24-channel - provides high-precision analog sensing across multiple sensors without external mux |
| Supply Voltage Range | 1.6 V to 5.5 V - allows direct interfacing with 3.3 V or 5 V peripherals and battery-backed operation |
| Low-Power Modes | HALT (0.9 µA), STOP (0.52 µA), SNOOZE - extends battery life in portable and remote monitoring systems |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, EVDD0, EVDD1 | Power supply inputs | Dedicated domains for digital core, analog peripherals, and voltage regulator enable stable mixed-signal operation |
| VSS, EVSS0, EVSS1 | Ground returns | Separate analog/digital ground paths minimize noise coupling into ADC and DAC circuits |
| P00–P07 | Port 0 I/O pins | Configurable as general-purpose I/O or alternate functions including UART0/1, I²C, and timer outputs |
| RESET | Active-low reset input | Accepts external reset signal; internal power-on reset (POR) and voltage detector (LVD) ensure reliable boot |
| REGC | Regulator capacitor connection | External 1 µF ceramic capacitor stabilizes on-chip LDO output for analog circuitry |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Fully integrated via single-wire SWD - eliminates need for external debugger hardware during development and field updates |
| Data Flash (DFLASH) | 4 KB user-configurable nonvolatile storage - enables parameter retention, calibration data save, and firmware update staging |
| 10-bit DAC | Single-channel, rail-to-rail output - drives analog actuators or reference voltages without external DAC IC |
| Timer Array Unit (TAU) | Three independent 16-bit timer groups with complementary PWM and dead-time insertion - suitable for motor control and power conversion |
| Hardware LIN bus support | Built-in LIN transceiver control logic in UART modules - reduces component count in automotive body electronics and HVAC nodes |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node with local display and BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, data preprocessing, low-power scheduling, and communication protocol stack. Use Value: Integrated 12-bit ADC, ultra-low STOP-mode current (0.52 µA), and on-chip data flash enable long-life autonomous operation with field-updatable calibration. |
Use Scenario: Residential HVAC control unit with touch interface, relay drivers, ambient sensing, and cloud connectivity. IC Role / Device Role / Timing Role: Central MCU handling UI rendering, PID loop execution, relay timing, and secure OTA update coordination. Use Value: 128 KB flash accommodates dual-bank firmware, 8 KB RAM supports multitasking OS, and hardware UART+I²C simplify peripheral integration. |
| Programmable Logic Relay | Motor Drive Monitor |
Use Scenario: DIN-rail mounted PLC module with configurable digital I/O, analog inputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time deterministic controller executing ladder logic scan, I/O state management, and serial protocol framing. Use Value: Three TAU timer units provide precise pulse generation and input capture for encoder feedback and timing-critical I/O strobing. |
Use Scenario: Brushless DC motor drive with current sensing, thermal monitoring, fault detection, and commutation timing. IC Role / Device Role / Timing Role: Safety-monitoring co-processor supervising gate driver status, overcurrent events, and thermal shutdown sequencing. Use Value: Independent 12-bit ADC channels sample multiple current shunts simultaneously; hardware watchdog and LVD ensure fail-safe response under fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10CMDCLKFB#12 | 80-pin LQFP, 128 KB flash, 10 KB RAM, same peripheral set but adds 4 extra ADC channels and 2 more I/O pins | Suitable for designs requiring higher I/O density or additional analog inputs without changing firmware logic | Select when board layout allows larger package and system demands >24 ADC channels or >50 GPIO |
| R5F10BLGCLFB#12 | 48-pin LQFP, 64 KB flash, 4 KB RAM, identical RL78/D1A core and peripheral IP but scaled memory/I/O | Targeted at cost-sensitive, space-constrained applications where full 128 KB flash and 24 ADC channels are unused | Choose for simplified BOM and lower unit cost where firmware size ≤64 KB and ADC channel count ≤16 |
Compared with R5F10CLDCLFB#12, the R5F10CMDCLKFB#12 offers expanded I/O and analog resources in an 80-pin footprint, while the R5F10BLGCLFB#12 reduces cost and size at the expense of memory and peripheral headroom - both require PCB redesign but share identical instruction set and peripheral register mapping.
Availability
R5F10CLDCLFB#12 is available at Aetrix Electronics and suitable for industrial automation, building control, and appliance control applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F10CLDCLFB#12 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The RL78/D1A product line is designed for ultra-low-power, cost-sensitive embedded control applications - emphasizing energy efficiency, integrated analog peripherals, and streamlined development for industrial and consumer equipment.
FAQ
What is the maximum operating frequency of the R5F10CLDCLFB#12?
The R5F10CLDCLFB#12 operates at a maximum CPU clock frequency of 32 MHz, achievable using the on-chip high-speed oscillator (HOCO) or external crystal/resonator. This speed supports real-time control loops with sub-microsecond interrupt latency and efficient execution of complex algorithms in the R5F10CLDCLFB#12's RL78 core.
Does the R5F10CLDCLFB#12 include a CAN interface?
No, the R5F10CLDCLFB#12 does not include a CAN controller. Per Renesas' RL78/D1A User's Manual Rev.1.20, Section 1.4.3 and 1.6.3, this 64-pin variant is explicitly designated "with no CAN." For CAN-enabled alternatives in the same family, consider the R5F10DLD or R5F10DLE series.
What package type and pin count does the R5F10CLDCLFB#12 use?
The R5F10CLDCLFB#12 uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch). This package is fully documented in Renesas' RL78/D1A User's Manual Rev.1.20, including mechanical drawings and thermal characteristics in the Semiconductor Package Mount Manual R50ZZ0003E.
How much on-chip flash and RAM does the R5F10CLDCLFB#12 provide?
The R5F10CLDCLFB#12 integrates 128 KB of on-chip flash memory and 8 KB of RAM. The flash includes dedicated data flash (DFLASH) sectors for nonvolatile parameter storage, and the RAM supports fast access for real-time variables and communication buffers in the R5F10CLDCLFB#12's embedded applications.
What low-power modes are supported by the R5F10CLDCLFB#12?
The R5F10CLDCLFB#12 supports HALT (0.9 µA), STOP (0.52 µA), and SNOOZE modes. These are documented in the RL78/D1A User's Manual Rev.1.20, enabling extended battery life in portable devices. Wake-up sources include external interrupts, RTC alarm, and peripheral-triggered events - all fully functional in the R5F10CLDCLFB#12.
R5F10CLDCLFB#12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/D1A
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, Motor Control, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 49
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 5x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10CLDCLFB#12 FAQ
1.How can I place an order for R5F10CLDCLFB#12 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10CLDCLFB#12 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 R5F10CLDCLFB#12 reliable?
The price and inventory of R5F10CLDCLFB#12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10CLDCLFB#12 is usually 5 days.
3.What payment methods are accepted for R5F10CLDCLFB#12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10CLDCLFB#12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10CLDCLFB#12?
R5F10CLDCLFB#12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10CLDCLFB#12 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 R5F10CLDCLFB#12?
For technical support, including R5F10CLDCLFB#12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10CLDCLFB#12 requirements.
6.How does Aetrix verify that R5F10CLDCLFB#12 is sourced from the original manufacturer or authorized distributors?
All R5F10CLDCLFB#12 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 R5F10CLDCLFB#12 meets industry standards.
7.What is the process for return or replacement of R5F10CLDCLFB#12?
All R5F10CLDCLFB#12 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10CLDCLFB#12, 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 R5F10CLDCLFB#12 part is unused and in its original packaging.
Return procedure for R5F10CLDCLFB#12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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