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Renesas R5F100LJGFA#X0
- Part No.:
- R5F100LJGFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LJGFA#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,228
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Product details
Overview
R5F100LJGFA#X0 from Renesas is a 64-pin LQFP-0.65mm, industrial-grade (−40°C to +105°C) RL78/G13 16-bit MCU with 256 KB flash, 8 KB data flash, 20 KB RAM, and integrated RTC, 10-bit ADC (26 channels), UART/I²C/CSI interfaces, and ultra-low-power operation (66 μA/MHz active, 0.57 μA in RTC+LVD mode). It targets battery-powered industrial sensors and smart metering systems requiring long runtime and robust timing.
For engineers reviewing the R5F100LJGFA#X0 datasheet, R5F100LJGFA#X0 pinout, R5F100LJGFA#X0 application, or R5F100LJGFA#X0 equivalent, key selection criteria include its G-grade temperature rating, on-chip data flash endurance (1M rewrites), background operation during flash rewrite, and support for LIN-bus via UART - critical for automotive body electronics and industrial control nodes.
Technical Context
The R5F100LJGFA#X0 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 a 12-bit interval timer, real-time clock with calendar/alarm/correction, and watchdog timer with dedicated low-speed oscillator.
Power management includes HALT, STOP, and SNOOZE modes; voltage detection (LVD) offers 14 selectable interrupt/reset levels; DMA supports 4 channels with 2-clock transfers between SFR and RAM. The high-accuracy on-chip oscillator delivers ±1.0% stability across VDD = 1.8–5.5 V and TA = −20 to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and efficient code density for embedded control. |
| Flash Memory | 256 KB code flash (1 KB block size); supports self-programming with boot swap and flash shield window for secure firmware updates. |
| Data Flash | 8 KB with background operation (BGO); allows concurrent program execution while rewriting - essential for logging or parameter storage without system stall. |
| RAM | 20 KB on-chip RAM; sufficient for real-time buffering, protocol stacks (e.g., LIN), and sensor fusion algorithms in compact industrial nodes. |
| ADC | 10-bit resolution, 26-channel SAR ADC with internal 1.45 V reference and temperature sensor; enables direct analog monitoring of power rails, thermal zones, and environmental inputs. |
| Operating Temp | −40°C to +105°C (G-grade); qualified for under-hood automotive modules, motor drives, and factory-floor automation equipment. |
| Low-Power Modes | 0.57 μA in STOP mode with RTC + LVD active; extends battery life in wireless sensor transmitters and energy-harvesting endpoints. |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared function pin enabling dual-interface peripheral connectivity; requires software-configurable mode selection for SPI master/slave or I²C host. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function input supporting debug (TOOLRxD), serial comms (RxD0), and sensor interface (SDA00); simplifies board routing in space-constrained designs. |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as primary analog input or ADC reference voltage source; supports ratiometric sensing when AVREFP tied to external precision reference. |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Enables differential ADC measurements or ground-referenced single-ended reads; AVREFM must be connected for accurate 10-bit conversion linearity. |
| P30/INTP0/CLK0 | External Interrupt 0 / Subsystem Clock Input | Accepts external 32.768 kHz crystal for RTC accuracy or triggers wake-up from STOP mode; eliminates need for separate RTC oscillator IC. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current and 0.57 μA STOP mode enable multi-year battery life in remote telemetry and portable instrumentation. |
| On-chip data flash with BGO | 8 KB data flash supports background rewriting - firmware can log sensor data or store calibration constants without halting real-time control loops. |
| LIN-bus compatible UART | UART channel supports LIN 2.2 protocol framing and checksum generation; reduces BOM cost by eliminating external LIN transceiver in body-control modules. |
| Real-time clock with calendar | RTC maintains date/time for 99 years with alarm and auto-correction; eliminates external RTC IC and backup battery in smart meters and HVAC controllers. |
| 14-level voltage detector (LVD) | LVD provides programmable brown-out protection and reset thresholds; prevents erratic behavior during power ramp-up or supply sag in industrial power supplies. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node deployed in factory environments with wide ambient swings. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, data preprocessing, and LoRaWAN transmission scheduling; RTC provides timestamped logs. Use Value: 0.57 μA STOP mode with RTC active extends 2xAA battery life beyond 5 years; 10-bit ADC directly digitizes analog sensor outputs without external signal conditioning. |
Use Scenario: DIN-rail mounted electricity meter requiring metrology-grade timekeeping, tamper detection, and secure firmware updates. IC Role / Device Role / Timing Role: System-on-chip managing pulse counting, LCD display, IR/RF communication, and calendar-based tariff switching; RTC drives billing cycles. Use Value: 8 KB data flash with 1M rewrite endurance stores lifetime consumption logs and firmware patches; G-grade temp rating ensures reliability at transformer substations. |
| Automotive Body Control | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication to central ECU. IC Role / Device Role / Timing Role: LIN slave node handling actuator drivers and switch inputs; UART configured for LIN physical layer compliance. Use Value: Integrated LIN-capable UART eliminates external transceiver; 256 KB flash accommodates bootloader, application, and diagnostic stack in single-chip solution. |
Use Scenario: Compact distributed I/O terminal interfacing with field devices (sensors, solenoids) via digital inputs/outputs and analog monitoring. IC Role / Device Role / Timing Role: Real-time I/O manager with deterministic scan cycle timing; DMA offloads data movement from CPU during high-speed digital sampling. Use Value: 4-channel DMA enables glitch-free 10 kHz digital input sampling; 26-channel ADC supports simultaneous monitoring of multiple process variables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LJGFA#X0 | No data flash (0 KB); identical core, peripherals, package, and temperature grade. | Not suitable for applications requiring non-volatile parameter storage or firmware update logging. | Select when data retention is handled externally (e.g., EEPROM or FRAM) and cost reduction is prioritized. |
| RA2A1GBM20FBC0#AC0 | Arm® Cortex®-M23 core, 256 KB flash, 32 KB SRAM, 12-bit ADC (24 ch), −40°C to +105°C, 64-pin LQFP. | Higher performance (100 MHz), TrustZone security, but higher active current (120 μA/MHz) and no built-in RTC calendar. | Choose for applications needing cryptographic acceleration or richer RTOS support, accepting trade-offs in power and RTC feature depth. |
Compared with R5F100LJGFA#X0, R5F101LJGFA#X0 removes data flash to reduce cost while retaining identical timing/peripheral capabilities, whereas RA2A1GBM20FBC0#AC0 trades RL78's ultra-low-power advantage for Arm ecosystem scalability and security - making R5F100LJGFA#X0 optimal for cost-sensitive, battery-critical industrial nodes where calendar RTC and BGO are mandatory.
Availability
R5F100LJGFA#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and G-grade temperature qualification.
Supply support for R5F100LJGFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding applications - balancing performance, integration, and energy efficiency in a single die.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R5F100LJGFA#X0?
The R5F100LJGFA#X0 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 41 DMIPS performance. At this frequency, active current is 66 μA/MHz (2.112 mA typical at 32 MHz, VDD = 3.3 V). In STOP mode with only RTC and LVD enabled, it draws just 0.57 μA - verified per R01DS0131EJ0380 Rev.3.80, Page 1.
Does the R5F100LJGFA#X0 support LIN bus communication, and how is it implemented?
Yes, the R5F100LJGFA#X0 supports LIN 2.2 bus communication via its UART peripheral, which includes hardware-assisted LIN break detection, sync field handling, and checksum generation. No external LIN transceiver is required for basic slave-node functionality - the UART pins connect directly to the LIN bus through a simple passive resistor network per ISO 17987-4.
What are the data flash endurance and rewrite voltage range specifications for the R5F100LJGFA#X0?
The R5F100LJGFA#X0 features 8 KB of on-chip data flash rated for 1,000,000 write/erase cycles (typical) with full functionality across VDD = 1.8 V to 5.5 V. Background operation (BGO) allows code execution from main flash while data flash is being rewritten - a key capability confirmed in Section 1.1 Features of R01DS0131EJ0380.
How does the R5F100LJGFA#X0 handle real-time clock functionality, and what calendar range does it support?
The R5F100LJGFA#X0 integrates a dedicated real-time clock (RTC) module with calendar function covering years 2000–2099 (99 years), including alarm, periodic interrupt, and automatic leap-year correction. It operates independently in STOP mode using a 32.768 kHz crystal or sub-system clock, maintaining time accuracy without CPU intervention.
Is the R5F100LJGFA#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 64-pin LQFP-0.65mm package (e.g., R5F100LCAFA#X0, R5F100LLAFA#X0) share identical pinouts and electrical characteristics. The R5F100LJGFA#X0 is fully pin-compatible with other L-series 64-pin variants - differences are limited to memory size, data flash presence, and temperature grade, not I/O mapping or power pin locations.
R5F100LJGFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- 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):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100LJGFA#X0 FAQ
1.How can I place an order for R5F100LJGFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LJGFA#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 R5F100LJGFA#X0 reliable?
The price and inventory of R5F100LJGFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LJGFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LJGFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LJGFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LJGFA#X0?
R5F100LJGFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LJGFA#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 R5F100LJGFA#X0?
For technical support, including R5F100LJGFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LJGFA#X0 requirements.
6.How does Aetrix verify that R5F100LJGFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LJGFA#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 R5F100LJGFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LJGFA#X0?
All R5F100LJGFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LJGFA#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 R5F100LJGFA#X0 part is unused and in its original packaging.
Return procedure for R5F100LJGFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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