Renesas R5F100SJDFB#X0
- Part No.:
- R5F100SJDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F100SJDFB#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLSH 128LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100SJDFB#X0 from Renesas Electronics is a 128-pin LFQFP (14 × 20 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 192 KB flash memory, 8 KB data flash, 16 KB RAM, and operation up to 32 MHz delivering 41 DMIPS - deployed in smart metering, industrial sensor nodes, and low-power HMI control systems.
For engineers reviewing the R5F100SJDFB#X0 datasheet, R5F100SJDFB#X0 pinout, R5F100SJDFB#X0 application, or R5F100SJDFB#X0 equivalent, key selection criteria include its 1.6–5.5 V supply range, ultra-low power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock with calendar/alarm, and dual UART/LIN support for robust fieldbus communication.
Technical Context
The R5F100SJDFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, 16-bit timers (12 channels), and a dedicated watchdog timer powered by a low-speed on-chip oscillator.
Its peripheral set includes 3 I²C/Simplified I²C channels, 3 CSI (SPI-compatible) channels, 2 UART/LIN channels, an 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor, and DMA controller with 4 channels enabling efficient background data flash rewriting during program execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock / Performance | 32 MHz operation with 41 DMIPS - enables real-time control loop execution at ≤25 μs latency |
| Memory | 192 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 16 KB RAM |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE - supports battery-powered operation >10 years |
| Analog Peripherals | 10-bit A/D converter with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Timers & RTC | 12× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC (99-year range, alarm, clock correction) |
| Communication | 2× UART/LIN, 3× I²C/Simplified I²C, 3× CSI (SPI-compatible), all configurable for multi-protocol interoperability |
Pinout & Package
Package: 128-pin LFQFP (14 × 20 mm, 0.5-mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin for synchronous serial clock output/input; supports master/slave SPI and I²C timing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling debug interface (TOOLRxD), serial comms, and I²C data exchange |
| P20/ANI0/AVREFP | Analog Input / ADC Reference Positive | Primary analog channel 0 input; also serves as positive reference for ADC measurements |
| P21/ANI1/AVREFM | Analog Input / ADC Reference Negative | Analog channel 1 input; doubles as negative reference for differential ADC operation |
| P22/ANI2 | Analog Input Channel 2 | Dedicated analog input supporting single-ended or differential acquisition with internal temperature sensor |
| RESET | Active-Low Reset Input | Asynchronous reset pin with internal pull-up; accepts external debounced reset signal or POR/LVD assertion |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 0.57 μA in STOP mode with RTC + LVD active - extends coin-cell life in maintenance-free sensors |
| Self-programmable flash | Boot swap and flash shield window enable secure firmware updates without external programmer |
| Background data flash write | BGO allows full CPU execution from code flash while rewriting data flash - no interrupt latency penalty |
| Multi-protocol serial interfaces | UART/LIN + I²C + CSI on shared pins reduces PCB routing complexity in space-constrained designs |
| On-chip temperature sensor | Calibrated sensor usable for thermal compensation or ambient monitoring without external components |
| Dedicated LIN physical layer support | Hardware LIN bus timing compliance (SAE J2602) simplifies automotive body electronics integration |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Bidirectional energy measurement with tamper detection, time-of-use billing, and PLC/G3-PLC communication. IC Role / Device Role / Timing Role: Main system controller managing metrology IC interface, RTC-based tariff switching, and secure firmware updates via LIN or UART. Use Value: 192 KB flash stores dual-metering firmware + encryption keys; 8 KB data flash retains lifetime logs and calibration data across 1M rewrites. |
Use Scenario: Wireless vibration/temperature node in predictive maintenance systems with 10-year battery life. IC Role / Device Role / Timing Role: Low-power sensor aggregator sampling ADC/timer inputs, executing FFT preprocessing, and waking radio only on event threshold. Use Value: STOP mode current of 0.57 μA enables >10-year operation on CR2032; integrated temperature sensor eliminates BOM cost. |
| Building Automation HMI | Automotive Body Control Module |
|
Use Scenario: Touch-enabled HVAC panel with display driver, button scanning, and RS-485 gateway to BAS controllers. IC Role / Device Role / Timing Role: Real-time UI processor handling capacitive touch, PWM fan control, and protocol translation between Modbus RTU and local peripherals. Use Value: 26-channel ADC supports multi-sensor fusion; 12× 16-bit timers provide precise PWM generation for motor/fan control. |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN slave communication to central ECU. IC Role / Device Role / Timing Role: LIN-compliant slave node executing position sensing, PWM dimming, and diagnostic reporting per SAE J2602. Use Value: Hardware LIN timing ensures bit-level compliance; 16 KB RAM accommodates LIN stack + application logic without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100SJAFB#X0 | Same package and pinout; 192 KB flash, 8 KB data flash, but rated for −40°C to +85°C (A-grade) | Consumer/industrial equipment without extended temperature requirement | Select when operating ambient stays within 85°C and cost sensitivity outweighs extended temp qualification |
| R5F101SJDFB#X0 | Identical package and pinout; same 128-pin LFQFP, but lacks data flash memory (0 KB) | Cost-optimized designs where parameter storage is handled externally or not required | Choose when firmware update logging, calibration storage, or EEPROM emulation is unnecessary |
Compared with R5F100SJDFB#X0, R5F100SJAFB#X0 trades industrial temperature range for lower unit cost, while R5F101SJDFB#X0 removes data flash to reduce silicon area - both retain identical peripheral sets and real-time performance, enabling design reuse with minimal qualification effort.
Availability
R5F100SJDFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and automotive body control modules requiring stable component supply across long product lifecycles.
Supply support for R5F100SJDFB#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, and power solutions for industrial, automotive, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power embedded applications - designed to replace legacy 8/16-bit MCUs with enhanced integration, security, and energy efficiency for industrial automation and smart infrastructure.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100SJDFB#X0?
The R5F100SJDFB#X0 operates at up to 32 MHz with a peak performance of 41 DMIPS. This is achieved using the high-speed on-chip oscillator calibrated to ±1.0% accuracy across 1.8–5.5 V and −40°C to +105°C. The RL78 core's 3-stage pipeline and optimized instruction set ensure deterministic timing for real-time control tasks in the R5F100SJDFB#X0.
Does the R5F100SJDFB#X0 support in-system programming and secure firmware updates?
Yes, the R5F100SJDFB#X0 supports full in-system programming via its on-chip debug interface and includes boot swap functionality plus flash shield window protection. These features allow authenticated firmware updates in the field without external tools, and prevent unauthorized access to critical code sections - essential for secure deployment of the R5F100SJDFB#X0 in networked devices.
How many analog input channels does the R5F100SJDFB#X0 support, and what resolution is available?
The R5F100SJDFB#X0 integrates an 8/10-bit successive approximation A/D converter with up to 26 analog input channels. Resolution is selectable per channel, and the converter operates across the full 1.6–5.5 V supply range. An internal 1.45 V reference and integrated temperature sensor are available - all features confirmed in the R5F100SJDFB#X0 datasheet for precision sensing applications.
What communication interfaces are integrated into the R5F100SJDFB#X0, and which support LIN bus protocol?
The R5F100SJDFB#X0 includes 2 UART channels with hardware LIN support compliant with SAE J2602, 3 I²C/Simplified I²C channels, and 3 CSI (SPI-compatible) interfaces. UART0 and UART1 both support LIN break detection, sync field processing, and checksum generation - making the R5F100SJDFB#X0 suitable for automotive body electronics and industrial sub-networks requiring LIN physical layer compliance.
What is the industrial temperature rating and power consumption profile of the R5F100SJDFB#X0?
The R5F100SJDFB#X0 is qualified for industrial operation from −40°C to +105°C (G-grade). Its ultra-low power architecture delivers 66 μA/MHz in HALT mode and just 0.57 μA in STOP mode with RTC and LVD active - verified across temperature and voltage ranges. This enables decade-long battery life in edge sensor deployments using the R5F100SJDFB#X0.
R5F100SJDFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-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:
- 110
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 26x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100SJDFB#X0 FAQ
1.How can I place an order for R5F100SJDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100SJDFB#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 R5F100SJDFB#X0 reliable?
The price and inventory of R5F100SJDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100SJDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100SJDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100SJDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100SJDFB#X0?
R5F100SJDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100SJDFB#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 R5F100SJDFB#X0?
For technical support, including R5F100SJDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100SJDFB#X0 requirements.
6.How does Aetrix verify that R5F100SJDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100SJDFB#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 R5F100SJDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100SJDFB#X0?
All R5F100SJDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100SJDFB#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 R5F100SJDFB#X0 part is unused and in its original packaging.
Return procedure for R5F100SJDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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