Renesas R5F100JLDFA#X0
- Part No.:
- R5F100JLDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JLDFA#X0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100JLDFA#X0 from Renesas is a 52-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 256 KB flash, 8 KB data flash, 20 KB RAM, 16-bit RL78 CPU core, and real-time clock with calendar support - deployed in industrial motor control, sensor nodes, and battery-powered HMI systems.
For engineers reviewing the R5F100JLDFA#X0 datasheet, R5F100JLDFA#X0 pinout, R5F100JLDFA#X0 application, or R5F100JLDFA#X0 equivalent, key selection criteria include ultra-low-power operation (66 μA/MHz), integrated 10-bit ADC (26 channels), dual UART/LIN support, hardware multiplier/divider, and industrial-grade temperature range (−40°C to +85°C).
Technical Context
The R5F100JLDFA#X0 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (@32 MHz) to 30.5 μs (@32.768 kHz), and operates across 1.6–5.5 V supply. It integrates DMA (4-channel), BGO-capable data flash, and on-chip high-accuracy oscillator (±1.0% over −20°C to +85°C).
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C interfaces, 2–4× UART/LIN channels, and 2–8× CSI (SPI-compatible) interfaces - all configurable for low-latency real-time control in resource-constrained embedded applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 256 KB code flash with 1 KB block size, self-programming, and flash shield window |
| Data Flash | 8 KB background operation (BGO) capable; 1,000,000 write cycles (TYP) |
| RAM | 20 KB on-chip RAM; supports flash library operations at FF300H start address |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference and temperature sensor |
| Operating Temp | −40°C to +85°C (Industrial D-grade); qualified per AEC-Q100 not claimed |
| Supply Voltage | 1.6 V to 5.5 V single-supply operation with on-chip POR and 14-level LVD |
Pinout & Package
Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch (PLQP0052JA-A). RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin for CSI0 clock or I²C0 clock; enables dual synchronous serial interface use |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin supporting SPI slave input, UART0 receive, debug tool interface, or I²C0 data |
| P12/SO00/TxD0/TOOLTxD | SPI Output / UART TX / Debug TX | Enables full-duplex SPI master/slave, UART0 transmit, or on-chip debugging via TOOL interface |
| P13/INTP0/TOOLCLK | Interrupt Input / Debug Clock | Configurable external interrupt source or clock input for on-chip debugger synchronization |
| P20/ANI0/AVREFP | Analog Input / ADC Reference+ | Primary ADC channel 0 input and positive reference voltage terminal for precision analog measurement |
| P21/ANI1/AVREFM | Analog Input / ADC Reference− | ADC channel 1 input and negative reference terminal; enables ratiometric or differential ADC modes |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT (0.57 μA), STOP, and SNOOZE modes enable sub-μA system sleep with RTC + LVD active |
| Hardware accelerator | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC units reduce firmware overhead in control loops |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and clock correction - no external crystal required |
| Serial interface flexibility | Up to 10 total serial channels (CSI, UART/LIN, I²C) with shared pins and independent baud rate generators |
| Secure flash management | Block erase prohibition and flash shield window prevent unauthorized reprogramming of protected sectors |
Applications
| Motor Control Interface | Smart Sensor Node |
|---|---|
|
Use Scenario: Brushless DC motor commutation with current sensing, PWM timing, and thermal monitoring in HVAC blowers. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing 3-phase gate drivers, and synchronizing ADC sampling to PWM edges. Use Value: 16-bit timer array with dead-time insertion and 10-bit ADC with 26-channel scan enable precise closed-loop control without external signal conditioning. |
Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ data for wireless transmission. IC Role / Device Role / Timing Role: System-on-chip host managing sensor I²C reads, RTC-timestamped logging, and low-power wake-up via external interrupt. Use Value: 0.57 μA STOP mode with RTC active extends 2× AA battery life beyond 5 years; integrated LVD prevents brown-out data corruption. |
| Industrial HMI Panel | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: Touch-enabled local operator interface for factory floor equipment with LED status feedback and button debouncing. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive touch scanning, buzzer output, key interrupt detection, and display SPI interface. Use Value: On-chip key interrupt and clock output/buzzer controller eliminate 3 external components; 52-pin LQFP allows compact 4-layer PCB layout. |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs, relay drivers, and Modbus RTU communication. IC Role / Device Role / Timing Role: Protocol engine and I/O scheduler managing UART-based Modbus framing, GPIO state polling, and watchdog supervision. Use Value: Dual UART with LIN support enables native Modbus RTU and diagnostics port simultaneously; 20 KB RAM accommodates protocol stack + buffer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JLDFA#X0 | No data flash (0 KB); identical pinout, peripherals, and code flash (256 KB) | Not suitable where field firmware updates or parameter storage are required | Select when boot code and configuration are stored externally or in code flash only |
| R5F100JLGFA#X0 | Same flash/RAM specs but G-grade (−40°C to +105°C); LQFP-0.65mm package unchanged | Required for extended-temperature industrial environments (e.g., solar inverters, under-hood) | Choose for higher ambient operating temperature; otherwise, D-grade R5F100JLDFA#X0 suffices |
Compared with R5F100JLDFA#X0, R5F101JLDFA#X0 removes data flash to reduce cost and die size while retaining full code execution capability, whereas R5F100JLGFA#X0 extends thermal qualification without altering software compatibility or footprint.
Availability
R5F100JLDFA#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F100JLDFA#X0 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 RL78/G13 product line delivers ultra-low-power, cost-optimized MCUs for general-purpose embedded control - designed specifically for battery-operated devices, industrial HMIs, and sensor edge nodes demanding high integration and robustness.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100JLDFA#X0?
The R5F100JLDFA#X0 operates up to 32 MHz using its high-speed on-chip oscillator (±1.0% accuracy). At this frequency, active current consumption is 66 μA/MHz - meaning ~2.1 mA typical at 32 MHz with all peripherals enabled. In HALT mode with only RTC and LVD active, it draws just 0.57 μA, making R5F100JLDFA#X0 ideal for intermittent-sensing applications.
Does the R5F100JLDFA#X0 support in-circuit debugging and flash programming?
Yes, the R5F100JLDFA#X0 includes full on-chip debug functionality via the TOOL interface (pins P11, P12, P13). It supports flash self-programming with boot swap and flash shield window features, enabling secure firmware updates in the field. No external programmer is required for development or production programming of R5F100JLDFA#X0.
How many serial communication interfaces does the R5F100JLDFA#X0 integrate, and are they pin-multiplexed?
The R5F100JLDFA#X0 integrates up to 10 serial interfaces: 2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels. All are pin-multiplexed - for example, P10 serves as SCK00 (CSI) or SCL00 (I²C), and P11 functions as SI00 (SPI), RxD0 (UART), or SDA00 (I²C). Pin configuration is software-selectable per port register settings in R5F100JLDFA#X0.
What ADC capabilities does the R5F100JLDFA#X0 provide, and can it measure internal temperature?
The R5F100JLDFA#X0 features a 10-bit successive-approximation ADC with up to 26 input channels, internal 1.45 V reference voltage, and an integrated temperature sensor. The temperature sensor is accessible only in HS (high-speed main) mode and provides calibrated readings usable for thermal compensation or system health monitoring - a verified capability documented in the R5F100JLDFA#X0 datasheet section 1.1.
Is the R5F100JLDFA#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 52-pin LQFP-0.65mm package (e.g., R5F100JCAFA#X0 through R5F100JLAFA#X0) share identical pinouts and electrical characteristics. This allows direct substitution within the same memory/peripheral configuration tier - for example, R5F100JLDFA#X0 can replace R5F100JJDFA#X0 in hardware without layout changes, provided software accommodates the larger flash and RAM resources of R5F100JLDFA#X0.
R5F100JLDFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- 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:
- 38
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K 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:
R5F100JLDFA#X0 FAQ
1.How can I place an order for R5F100JLDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JLDFA#X0 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 R5F100JLDFA#X0 reliable?
The price and inventory of R5F100JLDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JLDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100JLDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JLDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JLDFA#X0?
R5F100JLDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JLDFA#X0 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 R5F100JLDFA#X0?
For technical support, including R5F100JLDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JLDFA#X0 requirements.
6.How does Aetrix verify that R5F100JLDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100JLDFA#X0 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 R5F100JLDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100JLDFA#X0?
All R5F100JLDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JLDFA#X0, 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 R5F100JLDFA#X0 part is unused and in its original packaging.
Return procedure for R5F100JLDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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