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Renesas R5F109LDCJFB#10
- Part No.:
- R5F109LDCJFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F109LDCJFB#10.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R5F109LDCJFB#10 from Renesas Electronics is a 16-bit RL78/F12 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 includes hardware real-time clock (RTC), UART, I²C, and SPI interfaces. It targets industrial control panels requiring deterministic timing and low-power operation.
For engineers reviewing the R5F109LDCJFB#10 datasheet, R5F109LDCJFB#10 pinout, R5F109LDCJFB#10 application, or R5F109LDCJFB#10 equivalent, key selection criteria include flash endurance (100k write/erase cycles), VDD operating range (1.6–5.5 V), built-in voltage regulator (VDD = 1.8–5.5 V supply), and compliance with RL78/F12 peripheral register mapping for legacy firmware porting.
Technical Context
The R5F109LDCJFB#10 implements the RL78 CPU core with 3-stage pipeline and CISC architecture optimized for ultra-low-power embedded control. It integrates a 16-bit multiplier/divider unit, 24-channel 12-bit ADC with programmable sampling time, and dual watchdog timers (independent and windowed).
Its peripheral set includes three 16-bit timer arrays (TAU) with PWM output capability, a serial array unit (SAU) supporting UART/I²C/SPI modes, and a dedicated LIN bus controller compliant with LIN 2.2A. All peripherals are memory-mapped and accessible via fixed SFR addresses defined in the RL78/F12 hardware manual.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CPU, 3-stage pipeline, 32 MHz max frequency |
| Flash Memory | 128 KB on-chip flash with 100,000 write/erase cycles; supports block erase and byte programming |
| RAM | 8 KB on-chip RAM, battery-backed option available via VBAT pin |
| ADC | 12-bit resolution, 24 input channels, conversion time down to 1.05 μs per sample |
| Supply Voltage | 1.6 V to 5.5 V operation; internal LDO supports stable core voltage across full range |
| Operating Temp | −40°C to +85°C ambient; qualified for industrial-grade applications |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), JEDEC standard footprint |
Pinout & 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, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; separate analog ground (AVSS) pin provided |
| P00–P07 | Port 0 I/O | 8-bit bi-directional port with NMI, INT, and comparator inputs; configurable pull-up/down resistors |
| P10–P17 | Port 1 I/O | 8-bit port supporting UART0 TX/RX, SAU0 clock, and TAU0 channel outputs |
| P20–P27 | Port 2 I/O | 8-bit port with ADC input channels AN0–AN7, RTC alarm output, and external interrupt capability |
| P50–P55 | Port 5 I/O | 6-bit port supporting LIN transceiver interface, SAU1 I²C mode, and TAU1 capture inputs |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or on-chip power-on reset (POR) |
| REGC | Regulator capacitor terminal | Connects 1.0 μF ceramic capacitor to stabilize internal LDO output for core voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Halt mode current ≤ 0.52 μA at 3.0 V; 1.58 μA in stop mode with RTC active |
| On-chip debug interface | FULL-spec on-chip debug (OCD) via single-wire SWD; no external debugger required for flash programming |
| Hardware RTC | Independent 32.768 kHz crystal oscillator input; calendar function with leap-year correction and alarm interrupt |
| Peripheral independence | Each peripheral (ADC, TAU, SAU) has dedicated clock source and reset control; no shared clock gating dependency |
| Flash security | Code flash protection via lock bits; prevents read-out and unauthorized reprogramming without full chip erase |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Standalone touch-enabled control panel for HVAC system monitoring and parameter adjustment in factory environments. IC Role / Device Role / Timing Role: Main system controller executing real-time UI rendering, sensor data aggregation, and CAN/LIN communication stack. Use Value: Integrated 12-bit ADC enables direct thermistor and pressure sensor interfacing; 128 KB flash accommodates dual-bank firmware for safe OTA updates. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and CO₂ in commercial buildings. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor polling, data preprocessing, and BLE/Wi-Fi module wake-up scheduling. Use Value: Sub-μA stop-mode current extends battery life beyond 5 years; hardware RTC ensures precise 10-minute measurement intervals without software overhead. |
| Programmable Logic Controller (PLC) I/O Module | Motor Drive Control Board |
Use Scenario: DIN-rail mounted digital I/O expansion module for compact PLC systems with 16-channel isolated inputs and 8-channel relay outputs. IC Role / Device Role / Timing Role: Central logic engine handling input debouncing, state machine execution, and serial command parsing over RS-485. Use Value: 24-channel ADC supports analog input variants; TAU timer arrays provide precise 100 μs pulse-width modulation for LED status indicators. | Use Scenario: Brushless DC motor control board for HVAC fan systems requiring closed-loop speed regulation and fault detection. IC Role / Device Role / Timing Role: Real-time motion controller generating 3-phase PWM signals, reading hall-effect sensors, and executing FOC algorithms. Use Value: Dedicated 16-bit TAU units deliver synchronized 3-phase PWM with dead-time insertion; hardware multiplier accelerates Clarke/Park transforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F109LECFB#10 | Same package and pinout; 256 KB flash, 12 KB RAM, identical peripheral set | Higher memory capacity supports larger protocol stacks (e.g., Modbus TCP with TLS) | Select when firmware size exceeds 128 KB or future-proofing for feature expansion is required |
| R5F109LACJFB#10 | Same package and pinout; 96 KB flash, 6 KB RAM, identical peripheral set and clock specs | Lower memory density reduces cost for simpler control tasks (e.g., basic timer-based sequencing) | Select for cost-sensitive applications where 96 KB flash meets functional requirements |
Compared with R5F109LECFB#10 and R5F109LACJFB#10, the R5F109LDCJFB#10 offers balanced memory (128 KB flash/8 KB RAM) ideal for mid-complexity industrial firmware-sufficient for RTOS-based designs with multiple communication protocols but avoiding premium cost of 256 KB variants.
Availability
R5F109LDCJFB#10 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, PLC I/O modules, motor drive control boards, and battery-powered telemetry devices requiring stable component supply and long-term lifecycle support.
Supply support for R5F109LDCJFB#10 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The RL78/F12 product line delivers ultra-low-power 16-bit MCUs designed specifically for cost-sensitive industrial control, sensor fusion, and battery-operated edge devices requiring high integration and robust real-time performance.
FAQ
What is the maximum operating frequency of the R5F109LDCJFB#10?
The R5F109LDCJFB#10 operates at a maximum CPU frequency of 32 MHz using its on-chip high-speed oscillator or external crystal input. This frequency is fully supported across the entire 1.6–5.5 V supply range and −40°C to +85°C temperature range, with timing margins verified per RL78/F12 hardware specifications.
Does the R5F109LDCJFB#10 include an integrated voltage regulator?
Yes, the R5F109LDCJFB#10 features an on-chip LDO regulator that generates a stable 1.8 V core voltage from the main VDD supply (1.6–5.5 V). A 1.0 μF capacitor must be connected to the REGC pin to ensure proper regulation and noise suppression during dynamic operation.
How many ADC channels does the R5F109LDCJFB#10 support, and what is its resolution?
The R5F109LDCJFB#10 supports 24 analog input channels with 12-bit resolution. Conversion time is as fast as 1.05 μs per sample, and the ADC includes built-in offset calibration, sampling window control, and result alignment options for direct integration with sensor signal chains.
Is the R5F109LDCJFB#10 pin-compatible with other RL78/F12 64-pin variants?
Yes, all RL78/F12 64-pin devices-including R5F109Lx series variants-share identical pin configuration, electrical characteristics, and peripheral mapping. The R5F109LDCJFB#10 is fully pin-compatible with R5F109LACJFB#10 and R5F109LECFB#10, enabling drop-in replacement within the same package footprint.
What debug interface does the R5F109LDCJFB#10 support, and is external hardware required?
The R5F109LDCJFB#10 supports full-featured on-chip debug (OCD) via a single-wire SWD interface. No external debug probe is required for flash programming or real-time debugging-only a 4-pin connection (VDD, VSS, SWDIO, SWCLK) is needed, simplifying development and field firmware updates.
R5F109LDCJFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/F12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F109LDCJFB#10 FAQ
1.How can I place an order for R5F109LDCJFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F109LDCJFB#10 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 R5F109LDCJFB#10 reliable?
The price and inventory of R5F109LDCJFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F109LDCJFB#10 is usually 5 days.
3.What payment methods are accepted for R5F109LDCJFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F109LDCJFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F109LDCJFB#10?
R5F109LDCJFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F109LDCJFB#10 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 R5F109LDCJFB#10?
For technical support, including R5F109LDCJFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F109LDCJFB#10 requirements.
6.How does Aetrix verify that R5F109LDCJFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F109LDCJFB#10 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 R5F109LDCJFB#10 meets industry standards.
7.What is the process for return or replacement of R5F109LDCJFB#10?
All R5F109LDCJFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F109LDCJFB#10, 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 R5F109LDCJFB#10 part is unused and in its original packaging.
Return procedure for R5F109LDCJFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F109LDCJFB#10 Tags
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