Renesas R5F100SJAFB#10
- Part No.:
- R5F100SJAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F100SJAFB#10.pdf
- Description:
- IC MCU 16BIT 256KB FLSH 128LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:576
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Product details
Overview
R5F100SJAFB#10 from Renesas is a 128-pin LFQFP (14 × 20 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit MCU with 192 KB flash, 8 KB data flash, 16 KB RAM, and operation from −40°C to +105°C. It integrates a real-time clock, 10-bit ADC (26 channels), UART/LIN, I²C, CSI, 16-bit timers, DMA, and ultra-low-power modes (0.57 μA in RTC+LVD mode) for embedded control in harsh environments.
For engineers reviewing the R5F100SJAFB#10 datasheet, R5F100SJAFB#10 pinout, R5F100SJAFB#10 application, or R5F100SJAFB#10 equivalent, key selection criteria include its industrial temperature rating, integrated data flash with background operation, 128-pin LFQFP package for high I/O count, and RL78 CPU core delivering 41 DMIPS at 32 MHz with sub-μA sleep capability.
Technical Context
The R5F100SJAFB#10 implements the RL78 CPU core-a CISC architecture with 3-stage pipeline-supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 192 KB code flash (1 KB block size), 8 KB data flash with 1M rewrite cycles and background operation, and 16 KB on-chip RAM.
Peripheral integration includes up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, dual UART/LIN interfaces, up to 10-channel simplified I²C, 8–16× 16-bit timers, real-time clock with calendar/alarm/correction, and DMA controller with 4 channels supporting 2-clock transfers between SFR and RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 192 KB code flash with 1 KB erase blocks, security lock, and self-programming |
| Data Flash | 8 KB with background operation (BGO), 1,000,000 write cycles, VDD = 1.8–5.5 V |
| RAM | 16 KB on-chip RAM, including dedicated areas for flash library use (start address FAF00H) |
| Operating Temp | −40°C to +105°C (G-grade industrial), supports extended reliability in motor drives and industrial HMI |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE-enables battery-backed operation |
| Analog Peripherals | 10-bit ADC (26 channels), internal 1.45 V reference, integrated temperature sensor (HS mode only) |
Pinout & Package
Package: 128-pin LFQFP (14 × 20 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; supports 1.6–5.5 V single-supply operation |
| P10–P17, P20–P27, etc. | Multi-function GPIO | 120 total I/O pins configurable as N-ch open-drain (6 V tolerant), TTL input, or with pull-up; enables mixed-voltage interfacing (1.8/2.5/3.3 V) |
| P11, P12, P13 | UART0/RxD0/TxD0/TOOLRxD/TOOLTxD | Hardware UART with LIN support and on-chip bootloader interface for field firmware updates |
| P14, P15 | I²C0/SCL0/SDA0 | Full-featured I²C interface with clock stretching, arbitration, and multi-master support for sensor networks |
| P20–P25 | ADC inputs (ANI0–ANI5) | Analog input channels with selectable reference (AVREFP/AVREFM); supports simultaneous sampling via hardware trigger |
| XT1, XT2 | Crystal oscillator terminals | Supports 32.768 kHz crystal for RTC accuracy; external high-speed crystal optional up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables >10-year battery life in metering and remote sensors via sub-μA RTC+LVD retention |
| On-chip data flash with BGO | Allows real-time logging and parameter storage without halting application code execution |
| Integrated temperature sensor & 1.45 V reference | Eliminates external components for thermal monitoring and precision ADC calibration in industrial controls |
| Hardware LIN transceiver support | Reduces BOM cost and PCB area in automotive body electronics and HVAC actuators |
| 4-channel DMA with 2-clock transfer | Offloads CPU during high-bandwidth peripheral transfers (e.g., ADC-to-RAM streaming) |
| Real-time clock with calendar/alarm/correction | Provides accurate timekeeping over 99 years with automatic drift compensation-no external RTC IC needed |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Closed-loop BLDC motor control in pumps, fans, and compressors operating at −40°C to +105°C ambient. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing gate drivers via PWM outputs, and monitoring current/voltage/temperature. Use Value: Integrated 10-bit ADC (26 ch), 16-bit timers with dead-time insertion, and robust 128-pin LFQFP package enable compact, thermally resilient designs without external signal conditioning. |
Use Scenario: Polyphase electricity meter with tariff switching, tamper detection, and secure firmware updates over PLC or RF. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, RTC-based billing intervals, secure boot, and communication stack (UART/LIN/I²C). Use Value: 8 KB data flash with BGO allows encrypted parameter storage and field firmware upgrades without interrupting metering functions. |
| Building Automation HMI | Factory Asset Monitoring |
|
Use Scenario: Touch-enabled thermostat or lighting panel with local logic, display driver, and wired/wireless connectivity. IC Role / Device Role / Timing Role: Primary MCU handling capacitive touch sensing, SPI-driven LCD, button/key interrupts, and RS-485 Modbus gateway. Use Value: 120 GPIOs, on-chip key interrupt, and flexible clock output/buzzer controller reduce external logic and simplify UI responsiveness. |
Use Scenario: Wireless vibration/temperature node mounted on motors, gearboxes, or bearings in predictive maintenance systems. IC Role / Device Role / Timing Role: Low-power sensor aggregator collecting analog/digital inputs, performing edge analytics, and waking radio only on event thresholds. Use Value: 0.57 μA STOP mode with RTC alarm enables years of operation on coin-cell batteries while maintaining precise wake-up scheduling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100SKAFB#10 | Same 128-pin LFQFP package, identical peripherals, but 256 KB flash / 20 KB RAM | Better suited for complex protocol stacks (e.g., full Modbus TCP + web server) requiring larger code/data space | Select when future firmware expansion headroom or advanced connectivity features demand >192 KB flash |
| R5F101SJAFB#10 | Pin-compatible 128-pin LFQFP variant with no data flash (0 KB), same 192 KB code flash and 16 KB RAM | Targeted at cost-sensitive applications where EEPROM or external flash handles non-volatile storage | Choose when data logging or field updates are handled externally, reducing BOM cost and simplifying qualification |
Compared with R5F100SJAFB#10, R5F100SKAFB#10 offers scalable memory for evolving firmware, while R5F101SJAFB#10 removes data flash to lower unit cost-both retain identical timing, I/O, and industrial temperature capability without layout changes.
Availability
R5F100SJAFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, building automation HMI, and factory asset monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F100SJAFB#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 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 true low-power 16-bit performance for general-purpose embedded control, emphasizing energy efficiency, integrated peripherals, and industrial-grade reliability in compact packages.
FAQ
What is the maximum operating frequency and DMIPS rating of the R5F100SJAFB#10?
The R5F100SJAFB#10 operates at up to 32 MHz using its high-speed on-chip oscillator and delivers 41 DMIPS of processing performance. This benchmark reflects the RL78 CPU core's optimized 3-stage pipeline and instruction set efficiency under typical compiler-optimized code execution conditions.
Does the R5F100SJAFB#10 include an integrated temperature sensor, and how is it used?
Yes, the R5F100SJAFB#10 includes an on-chip temperature sensor usable only in HS (high-speed main) mode. It provides calibrated readings referenced to the internal 1.45 V bandgap voltage, enabling thermal monitoring in motor drives or power supplies without external components-accuracy is specified across −40°C to +105°C.
What are the data flash endurance and voltage requirements for the R5F100SJAFB#10?
The R5F100SJAFB#10 features 8 KB of data flash rated for 1,000,000 write/erase cycles (typical) with operation supported across the full VDD range of 1.8 V to 5.5 V. Background operation (BGO) allows concurrent program execution during rewrites, critical for real-time logging in industrial controllers.
Is the R5F100SJAFB#10 pin-compatible with other RL78/G13 variants in the 128-pin LFQFP package?
Yes, all RL78/G13 devices in the 128-pin LFQFP package-including R5F100SJAFB#10, R5F100SKAFB#10, and R5F101SJAFB#10-share identical pinouts and mechanical footprint. This enables direct substitution within the same package family for memory or feature scaling without PCB redesign.
What industrial temperature grade does the R5F100SJAFB#10 support, and how is it indicated in the part number?
The R5F100SJAFB#10 is rated for −40°C to +105°C operation and carries the 'G' grade designation in its family naming convention (RL78/G13). The 'G' suffix confirms industrial qualification per Renesas' reliability standards, including extended HTOL and temperature cycling validation.
R5F100SJAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- 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:
R5F100SJAFB#10 FAQ
1.How can I place an order for R5F100SJAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100SJAFB#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 R5F100SJAFB#10 reliable?
The price and inventory of R5F100SJAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100SJAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F100SJAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100SJAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100SJAFB#10?
R5F100SJAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100SJAFB#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 R5F100SJAFB#10?
For technical support, including R5F100SJAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100SJAFB#10 requirements.
6.How does Aetrix verify that R5F100SJAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F100SJAFB#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 R5F100SJAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F100SJAFB#10?
All R5F100SJAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100SJAFB#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 R5F100SJAFB#10 part is unused and in its original packaging.
Return procedure for R5F100SJAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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