Renesas R5F100GFAFB#10
- Part No.:
- R5F100GFAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F100GFAFB#10.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F100GFAFB#10 from Renesas is a 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 32 MHz max CPU speed, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It targets battery-powered industrial sensors and smart metering interfaces requiring robust timing, analog sensing, and LIN/UART communication.
For engineers reviewing the R5F100GFAFB#10 datasheet, R5F100GFAFB#10 pinout, R5F100GFAFB#10 application, or R5F100GFAFB#10 equivalent, key selection criteria include its -40°C to +105°C industrial temperature rating, integrated 10-bit 26-channel ADC with internal reference and temperature sensor, real-time clock with calendar/alarm, and support for SNOOZE mode wake-up via peripheral interrupts - all critical for energy-constrained embedded control.
Technical Context
The R5F100GFAFB#10 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 dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 2–4× UART/LIN interfaces, 2–8× CSI (SPI-compatible) channels, DMA controller (4 channels), and hardware multiplier/divider. All peripherals are accessible under HALT, STOP, and SNOOZE low-power modes without CPU intervention.
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 Speed | 32 MHz - delivers 41 DMIPS performance for real-time control loops |
| Flash Memory | 128 KB code flash with 1 KB block erase, self-programming, and boot swap |
| Data Flash | 8 KB background operation (BGO) capable; 1M rewrite cycles (TYP) |
| RAM | 12 KB on-chip SRAM, including dedicated areas for flash library use (FF300H start) |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Operating Temp | -40°C to +105°C (G-grade industrial qualification) |
| Supply Voltage | 1.6 V to 5.5 V - supports direct connection to Li-ion, 3.3 V, and 5 V rails |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| 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 single-supply operation |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; enables mixed-voltage interfacing |
| P10/P11 | SPI/I²C/UART multiplexed pins | Shared SCK00/SCL00 and SI00/RxD0/SDA00 - supports concurrent SPI master/slave and I²C slave roles |
| P20–P27 | Analog input / reference pins | ANI0–ANI7 with AVREFP/AVREFM; enables precision ratiometric measurements using internal 1.45 V reference |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKN | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC calibration and low-power timing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power modes | HALT (0.23 μA), STOP (0.57 μA with RTC+LVD), and SNOOZE (peripheral-triggered wake-up without full CPU restart) |
| On-chip debug | Fully integrated on-chip debug interface with flash shield window and boot swap - enables secure field firmware updates |
| Hardware BGO | Background data flash rewriting while executing code from main flash - eliminates interrupt latency during parameter storage |
| Peripheral event chaining | Timer output can trigger ADC conversion or DMA transfer without CPU involvement - reduces ISR overhead in sensor polling |
| LIN bus support | UART channel with automatic sync-break detection and checksum generation - compliant with LIN 2.2A for automotive body electronics |
| Temperature sensor | Integrated calibrated sensor (±3°C accuracy) accessible via dedicated ADC channel - enables thermal monitoring without external components |
Applications
| Industrial Sensor Node | Smart Energy Meter Interface |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and voltage data at 10-second intervals. IC Role / Device Role / Timing Role: Central MCU managing ADC sampling, RTC timestamping, LIN-based data aggregation, and SNOOZE-mode wake-up on timer expiry. Use Value: 0.57 μA STOP mode extends 2× AA battery life beyond 10 years; integrated temperature sensor eliminates BOM cost of external IC. |
Use Scenario: Sub-metering module communicating via LIN to main energy meter controller while logging voltage/current harmonics. IC Role / Device Role / Timing Role: Real-time waveform capture engine using DMA-driven ADC, 12-bit interval timer for sampling synchronization, and LIN transceiver interface. Use Value: Hardware BGO allows continuous flash logging of harmonic data during active measurement - no data loss during firmware update. |
| Automotive Body Control | Programmable Logic Controller I/O Module |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication to BCM. IC Role / Device Role / Timing Role: Safety-critical actuator driver with LVD monitoring, watchdog timer, and LIN protocol stack execution. Use Value: On-chip LVD with 14-level programmability enables precise brown-out detection before MCU malfunction - meets ISO 16750-2 Class III requirements. |
Use Scenario: DIN-rail mounted I/O expansion unit accepting 24 V digital inputs and driving relay outputs in factory automation. IC Role / Device Role / Timing Role: Isolated I/O manager with GPIO debouncing, PWM-controlled LED indicators, and UART-to-RS485 bridge. Use Value: 26-channel ADC supports analog input scaling (0–10 V, 4–20 mA) with internal reference - eliminates external precision voltage references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GGAFA#V0 | Same 128 KB flash/8 KB data flash/12 KB RAM, but 44-pin LQFP (10 × 10 mm, 0.8-mm pitch); lacks P2x analog pins beyond ANI7 | Lower pin count limits analog channel count to 8; better suited for compact control boards with fewer sensors | Select when board space permits larger pitch and analog channel requirement ≤8 |
| R5F101GFAFB#10 | Identical package and pinout, but no data flash (0 KB); retains full code flash (128 KB) and RAM (12 KB) | Eliminates BGO capability and parameter storage - suitable for fixed-function firmware without runtime configuration | Choose when field-updatable parameters are unnecessary and BOM cost reduction is prioritized over data retention flexibility |
Compared with R5F100GFAFB#10, R5F100GGAFA#V0 trades analog I/O density for larger pitch manufacturability, while R5F101GFAFB#10 removes data flash to reduce test complexity and cost - both retain identical CPU performance and industrial temperature rating but serve distinct design trade-offs in memory architecture and peripheral scalability.
Availability
R5F100GFAFB#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter interfaces, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F100GFAFB#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 industrial, automotive, and infrastructure markets.
The RL78/G13 family is designed for ultra-low-power general-purpose embedded control - balancing performance, integration, and energy efficiency in cost-sensitive industrial and consumer applications.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F100GFAFB#10?
The R5F100GFAFB#10 operates at up to 32 MHz with a verified performance of 41 DMIPS. This rating is measured under standard conditions (VDD = 3.3 V, TA = 25°C) using the EEMBC CoreMark benchmark and reflects deterministic execution throughput for real-time control tasks such as motor commutation and sensor fusion.
Does the R5F100GFAFB#10 support hardware-based background data flash rewriting?
Yes, the R5F100GFAFB#10 supports Background Operation (BGO) for data flash. While executing code from main flash memory, it can simultaneously rewrite data flash sectors - enabling seamless logging of calibration values or operational history without interrupting real-time processing.
What analog features are integrated into the R5F100GFAFB#10 for sensor interfacing?
The R5F100GFAFB#10 integrates a 10-bit ADC with 26 analog input channels, selectable internal 1.45 V reference voltage, and a factory-calibrated temperature sensor. These features allow direct connection of thermistors, RTDs, and voltage-output sensors without external signal conditioning or reference ICs.
How does the R5F100GFAFB#10 achieve ultra-low-power operation in STOP mode?
The R5F100GFAFB#10 achieves 0.57 μA STOP mode current by powering down the CPU, flash, and most peripherals while retaining RTC operation, LVD monitoring, and RAM retention. Wake-up is supported via external interrupt, RTC alarm, or LVD threshold crossing - all without restoring full power.
Is the R5F100GFAFB#10 qualified for industrial temperature operation?
Yes, the R5F100GFAFB#10 carries the 'G' grade suffix, certifying operation from -40°C to +105°C. This qualification covers full functionality of flash programming, ADC accuracy, oscillator stability, and I/O drive strength across the entire range - validated per JEDEC JESD22-A104.
R5F100GFAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 8K 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:
R5F100GFAFB#10 FAQ
1.How can I place an order for R5F100GFAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GFAFB#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 R5F100GFAFB#10 reliable?
The price and inventory of R5F100GFAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GFAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F100GFAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GFAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GFAFB#10?
R5F100GFAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GFAFB#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 R5F100GFAFB#10?
For technical support, including R5F100GFAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GFAFB#10 requirements.
6.How does Aetrix verify that R5F100GFAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F100GFAFB#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 R5F100GFAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F100GFAFB#10?
All R5F100GFAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GFAFB#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 R5F100GFAFB#10 part is unused and in its original packaging.
Return procedure for R5F100GFAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F100GFAFB#10 Tags

-
ATTINY4-TSHR
Microchip Technology

-
ATTINY10-TSHR
Microchip Technology

-
ATTINY10-TS8R
Microchip Technology

-
ATTINY202-SSNR
Microchip Technology

-
ATTINY202-SSFR
Microchip Technology

-
ATTINY402-SSNR
Microchip Technology

-
PIC16F15213T-I/MF
Microchip Technology

-
PIC16F15213-E/MF
Microchip Technology

-
PIC10F200T-I/OT
Microchip Technology

-
ATTINY412-SSNR
Microchip Technology

-
PIC10F202T-I/OT
Microchip Technology

-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

