Renesas R5F100JGAFA#10
- Part No.:
- R5F100JGAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JGAFA#10.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,280
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F100JGAFA#10 from Renesas is a 52-pin LQFP-0.65mm, 256 KB flash, 8 KB data flash, 20 KB RAM RL78/G13 16-bit MCU with ultra-low power consumption (66 μA/MHz), real-time clock, 10-bit ADC (26 channels), and integrated UART/SPI/I²C interfaces - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F100JGAFA#10 datasheet, R5F100JGAFA#10 pinout, R5F100JGAFA#10 application, or R5F100JGAFA#10 equivalent, key selection criteria include its -40°C to +105°C industrial temperature grade (G), on-chip data flash rewrite endurance (1,000,000 cycles), and support for background operation during flash programming.
Technical Context
The R5F100JGAFA#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (@32 MHz) to 30.5 μs (@32.768 kHz). It integrates a 12-bit interval timer, calendar-mode RTC with alarm and correction, and a watchdog timer driven by a dedicated low-speed on-chip oscillator.
Its peripheral set includes up to 16 channels of 16-bit timers, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN channels, and 2–8 CSI (SPI-compatible) channels - all configurable via register-based control without external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 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 and flash shield window security |
| Data Flash | 8 KB with background operation (BGO) and 1,000,000 write/erase cycles (TYP.) |
| RAM | 20 KB on-chip SRAM, including dedicated flash library RAM at FAF00H |
| ADC | 10-bit resolution, 26-channel analog input, internal 1.45 V reference and temperature sensor |
| Operating Temp | -40°C to +105°C (industrial G-grade), 1.6–5.5 V supply voltage range |
| Low-Power Modes | HALT, STOP, and SNOOZE modes; 0.57 μA RTC+LVD only current |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65-mm pitch), RoHS-compliant, JEDEC standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared dual-function pin supporting master/slave SPI and I²C communication |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / Debug RX / I²C Data | Multi-role pin enabling serial debug interface, asynchronous communication, and I²C slave operation |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as primary ADC channel or positive reference voltage source |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Supports differential ADC measurement or negative reference for precision sensing |
| P50/INTP0/TOOLnTRST | External Interrupt 0 / JTAG Reset | Dual-purpose pin for wake-up interrupt or JTAG boundary-scan reset control |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | Reduces active current to 66 μA/MHz, enabling multi-year battery life in remote sensors |
| Background data flash rewrite | Allows firmware updates or parameter storage without halting application code execution |
| On-chip RTC with calendar | Provides accurate timekeeping over 99 years with alarm and auto-correction for crystal drift |
| Self-programming with boot swap | Enables safe over-the-air (OTA) firmware upgrades using dual-bank flash management |
| Multi-voltage I/O interface | Supports direct connection to 1.8 V, 2.5 V, or 3.0 V peripherals without level shifters |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in factory zones. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, data logging to data flash, and wireless transmission scheduling. Use Value: 0.57 μA RTC+LVD current enables >5-year operation on coin-cell; BGO allows continuous logging during OTA updates. | Use Scenario: Embedded controller managing fan speed, valve position, and air quality feedback in commercial HVAC units. IC Role / Device Role / Timing Role: Real-time coordinator of PWM-driven actuators, analog sensor fusion, and MODBUS RTU communication. Use Value: 26-channel 10-bit ADC supports simultaneous multi-sensor acquisition; -40°C to +105°C rating ensures reliability in hot equipment cabinets. |
| Programmable Logic Relay | Energy Metering Subsystem |
Use Scenario: DIN-rail mounted relay module with configurable I/O, timing, and logic functions for machine control. IC Role / Device Role / Timing Role: Deterministic sequencer implementing ladder logic via RL78's fast interrupt response and 16-bit timer precision. Use Value: 16-channel 16-bit timers enable microsecond-accurate pulse generation and input capture for encoder feedback. | Use Scenario: Metrology subsystem in smart electricity meters performing voltage/current sampling and kWh calculation. IC Role / Device Role / Timing Role: High-accuracy analog front-end controller with synchronized ADC sampling and RTC-stamped energy accumulation. Use Value: Internal 1.45 V reference and temperature sensor enable on-chip calibration drift compensation across operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JGAFB#V0 | Same core, memory, and peripherals; differs in package (LFQFP, 0.5-mm pitch, 52-pin) | Requires PCB layout change due to finer pitch and different land pattern | Select when board space constraints favor smaller footprint or existing LFQFP tooling is available |
| R5F101JGAFA#10 | Omits 8 KB data flash; retains identical code flash, RAM, peripherals, and package | Not suitable for applications requiring nonvolatile parameter storage or field firmware updates | Choose for cost-sensitive designs where data retention is handled externally or not required |
Compared with R5F100JGAFB#V0, the R5F100JGAFA#10 offers easier hand-soldering and rework compatibility via its 0.65-mm LQFP; versus R5F101JGAFA#10, it delivers critical embedded data logging capability through its integrated 8 KB data flash with background operation.
Availability
R5F100JGAFA#10 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and battery-powered sensor systems requiring stable component supply across extended product lifecycles.
Supply support for R5F100JGAFA#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line targets cost-sensitive, ultra-low-power embedded applications demanding high integration, long battery life, and industrial-grade reliability - especially in sensor, control, and metering systems.
FAQ
What is the maximum operating frequency and corresponding instruction speed of the R5F100JGAFA#10?
The R5F100JGAFA#10 operates at up to 32 MHz using its high-speed on-chip oscillator. At this frequency, the minimum instruction execution time is 0.03125 μs. The RL78 core also supports ultra-low-speed operation down to 32.768 kHz (30.5 μs/instruction), enabling precise RTC timing while minimizing power consumption. This dual-speed capability is managed entirely in hardware without software overhead.
Does the R5F100JGAFA#10 support in-system programming and secure firmware updates?
Yes, the R5F100JGAFA#10 supports full in-system programming via its on-chip debug interface and includes a boot swap function for safe firmware updates. Its flash shield window feature prevents unauthorized readout of protected code regions, and block erase prohibition enhances security. The self-programming capability works with VDD = 1.8–5.5 V, allowing updates even under brown-out conditions when paired with the LVD circuit.
How many serial communication interfaces does the R5F100JGAFA#10 integrate, and what protocols are supported?
The R5F100JGAFA#10 integrates up to 4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels. All are independently configurable and support multi-master I²C, LIN bus physical layer compliance, and full-duplex SPI operation. Pin multiplexing allows flexible routing of these interfaces to match PCB layout requirements without external logic.
What is the purpose and location of the dedicated RAM used by the flash library in the R5F100JGAFA#10?
The R5F100JGAFA#10 reserves on-chip RAM at address FAF00H for use by the Flash Self-Programming Library during data flash erase/write operations. This 256-byte region is pre-allocated to ensure deterministic timing and avoid conflicts with application variables. It is automatically managed by the library API and must not be overwritten by user code - documentation specifies this area is exclusively reserved for flash library runtime operations.
Can the R5F100JGAFA#10 operate reliably in high-temperature industrial environments?
Yes, the R5F100JGAFA#10 is rated for operation from -40°C to +105°C (G-grade industrial specification). Its on-chip voltage detector (LVD) provides selectable reset/interrupt thresholds across 14 levels, and the high-accuracy ±1.0% on-chip oscillator remains stable across this full range. Thermal design validation per JEDEC JESD22-A104 confirms sustained functionality at maximum ambient temperature with standard PCB copper pour.
R5F100JGAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 38
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K 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:
R5F100JGAFA#10 FAQ
1.How can I place an order for R5F100JGAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JGAFA#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 R5F100JGAFA#10 reliable?
The price and inventory of R5F100JGAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JGAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F100JGAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JGAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JGAFA#10?
R5F100JGAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JGAFA#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 R5F100JGAFA#10?
For technical support, including R5F100JGAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JGAFA#10 requirements.
6.How does Aetrix verify that R5F100JGAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F100JGAFA#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 R5F100JGAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F100JGAFA#10?
All R5F100JGAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JGAFA#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 R5F100JGAFA#10 part is unused and in its original packaging.
Return procedure for R5F100JGAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F100JGAFA#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…

