Renesas R5F100GJAFB#V0
- Part No.:
- R5F100GJAFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F100GJAFB#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100GJAFB#V0 from Renesas is a 48-pin LFQFP, 0.5-mm pitch, industrial-grade RL78/G13 16-bit microcontroller with 192 KB flash, 8 KB data flash, 16 KB RAM, and operation up to 32 MHz (41 DMIPS), designed for battery-powered sensor nodes and low-power industrial control systems.
For engineers reviewing the R5F100GJAFB#V0 datasheet, R5F100GJAFB#V0 pinout, R5F100GJAFB#V0 application, or R5F100GJAFB#V0 equivalent, key selection criteria include ultra-low power modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock with calendar, and LIN-capable UART interfaces in an AEC-Q100–unqualified but industrial-temperature (−40°C to +105°C) package.
Technical Context
The R5F100GJAFB#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip debug, self-programming flash with boot swap, and background operation during data flash rewriting.
Power management includes HALT, STOP, and SNOOZE modes; voltage detection (14-level LVD); and POR. Peripherals include up to 16× 16-bit timers, 1× real-time clock with alarm/calendar, 1× watchdog timer, and serial interfaces: CSI (SPI-like), UART/LIN (2–4 channels), and I²C (3–10 channels).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 192 KB code flash (1 KB block size), with erase/write protection and on-chip debug support |
| Data Flash | 8 KB data flash with background operation (BGO), 1M rewrite cycles (typ.), VDD = 1.8–5.5 V |
| RAM | 16 KB on-chip RAM, including dedicated areas for flash library use (start address FAF00H) |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE for low-latency wake-up |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Operating Range | 1.6 V to 5.5 V supply; −40°C to +105°C ambient (industrial G-grade) |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 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/peripheral rail decoupling; supports 1.6–5.5 V operation |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P53 | General-purpose I/O ports | Up to 42 programmable I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V interface |
| P20/P21 | ADC analog inputs / AVREFP/AVREFM | Dedicated analog reference pins enabling precise 10-bit ADC measurements across full VDD range |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pins supporting SPI clock/data, UART receive, debug interface, and I²C data - enables shared signal routing |
| CLKP/CLKM | External crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy; optional external main clock up to 20 MHz |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD reset outputs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 0.57 μA in STOP mode with RTC + LVD active enables decade-scale battery life in metering applications |
| Self-programmable flash | Boot-swap and flash shield window functions allow secure firmware updates without external programmer |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction support time-stamped logging and scheduled wake-up without external RTC |
| LIN-capable UART | UART channel with LIN bus physical layer compliance simplifies integration into automotive body electronics networks |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and sensor fusion math |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with hourly consumption logging and tamper detection. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing EEPROM-less data retention via data flash, and maintaining accurate time via integrated RTC. Use Value: 0.57 μA STOP mode extends 10-year battery life; 10-bit ADC with internal reference ensures consistent measurement accuracy across temperature and supply variation. |
Use Scenario: Wireless environmental sensor node measuring temperature, humidity, and CO₂ in HVAC ducts or factory floors. IC Role / Device Role / Timing Role: Sensor aggregator and communication hub, sampling analog sensors, running calibration routines, and transmitting data over UART-to-LoRaWAN bridge. Use Value: 26-channel ADC supports multi-sensor integration; SNOOZE mode enables sub-100 μs wake-from-sleep latency for responsive event-driven sensing. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main control board managing motor drive, water valves, display, and user interface. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating PWM motor control, touch-key scanning, buzzer output, and fault monitoring. Use Value: 16× 16-bit timers provide independent timing for motor commutation, UI refresh, and safety watchdogs; on-chip BCD correction simplifies display digit formatting. |
Use Scenario: DIN-rail mounted HVAC controller interfacing with thermostats, dampers, and Modbus RTU field devices. IC Role / Device Role / Timing Role: Protocol gateway translating between local I²C sensors and RS-485 Modbus network using hardware UART with LIN framing support. Use Value: Dual UART channels enable simultaneous local debug (TOOLRxD) and field bus communication; 42 GPIOs accommodate diverse digital I/O requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GKAFB#V0 | Same package and pinout; 256 KB flash, 8 KB data flash, 20 KB RAM - higher memory headroom | Better suited for complex protocol stacks (e.g., full Modbus TCP) or OTA firmware storage | Select when future firmware growth or dual-bank update capability is required |
| R5F101GJAFB#V0 | Same footprint and peripherals; no data flash (0 KB), reduced RAM (12 KB), same 192 KB code flash | Lower-cost option where EEPROM emulation or background flash writes are unnecessary | Select for cost-sensitive designs where data logging uses external memory or infrequent writes suffice |
Compared with R5F100GJAFB#V0, R5F100GKAFB#V0 offers scalable memory for evolving firmware, while R5F101GJAFB#V0 reduces BOM cost by eliminating data flash - both retain identical timing, power, and peripheral compatibility for drop-in layout reuse.
Availability
R5F100GJAFB#V0 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended product lifecycles.
Supply support for R5F100GJAFB#V0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The RL78/G13 family delivers true low-power performance for general-purpose embedded applications, targeting cost-sensitive, battery-operated, and thermally constrained systems requiring robust peripheral integration and long-term supply stability.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F100GJAFB#V0?
The R5F100GJAFB#V0 operates at up to 32 MHz with a measured performance of 41 DMIPS. This is achieved using the high-speed on-chip oscillator calibrated to ±1.0% accuracy across VDD = 1.8–5.5 V and TA = −20°C to +85°C. The RL78 CPU core's 3-stage pipeline enables deterministic execution timing critical for real-time control loops in the R5F100GJAFB#V0.
Does the R5F100GJAFB#V0 support in-system programming and secure firmware updates?
Yes, the R5F100GJAFB#V0 supports full in-system programming via its on-chip debug interface and self-programming flash controller. It includes boot-swap functionality for safe dual-bank firmware updates and a flash shield window to prevent unauthorized access to protected code regions - all implemented without external hardware programmers in the R5F100GJAFB#V0.
What are the key low-power modes available on the R5F100GJAFB#V0, and what is the lowest achievable current draw?
The R5F100GJAFB#V0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it draws just 0.57 μA - enabling multi-year battery operation in metering and sensor applications. Wake-up sources include external interrupts, RTC alarms, and LVD events, all fully supported in the R5F100GJAFB#V0.
How many analog input channels does the 10-bit ADC in the R5F100GJAFB#V0 support, and does it include internal references?
The R5F100GJAFB#V0 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels. It includes an internal 1.45 V reference voltage and a calibrated temperature sensor - both usable across the full 1.6–5.5 V supply range. These features eliminate external reference components and simplify thermal monitoring in the R5F100GJAFB#V0.
Is the R5F100GJAFB#V0 pin-compatible with other RL78/G13 variants in the same 48-pin LFQFP package?
Yes, the R5F100GJAFB#V0 shares identical pinout and electrical characteristics with all other RL78/G13 devices in the 48-pin LFQFP (FB) package, including R5F100GKAFB#V0 and R5F101GJAFB#V0. This allows direct PCB reuse across memory- and feature-variant selections, provided software accommodates differences in flash configuration and data flash presence in the R5F100GJAFB#V0.
R5F100GJAFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
- 34
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100GJAFB#V0 FAQ
1.How can I place an order for R5F100GJAFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GJAFB#V0 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 R5F100GJAFB#V0 reliable?
The price and inventory of R5F100GJAFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GJAFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F100GJAFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GJAFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GJAFB#V0?
R5F100GJAFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GJAFB#V0 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 R5F100GJAFB#V0?
For technical support, including R5F100GJAFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GJAFB#V0 requirements.
6.How does Aetrix verify that R5F100GJAFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100GJAFB#V0 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 R5F100GJAFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F100GJAFB#V0?
All R5F100GJAFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GJAFB#V0, 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 R5F100GJAFB#V0 part is unused and in its original packaging.
Return procedure for R5F100GJAFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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