My Inquiry
My Account
Renesas R5F100LJDFA#X0
- Part No.:
- R5F100LJDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LJDFA#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,393
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F100LJDFA#X0 from Renesas is a 64-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit MCU with 256 KB flash, 8 KB data flash, 20 KB RAM, and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, CSI, RTC, and DMA for embedded control in HVAC, motor drives, and smart sensors.
For engineers reviewing the R5F100LJDFA#X0 datasheet, R5F100LJDFA#X0 pinout, R5F100LJDFA#X0 application, or R5F100LJDFA#X0 equivalent, key selection criteria include its 64-pin LQFP package, -40°C to +85°C industrial temperature grade (D suffix), integrated LIN-capable UARTs, background data flash rewriting, and ultra-low-power STOP/HALT/SNOOZE modes.
Technical Context
The R5F100LJDFA#X0 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 features dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, selectable 1–32 MHz) and dedicated low-speed oscillator for RTC/watchdog.
Its peripheral set includes up to 16 channels of 16-bit timer, 12-bit interval timer, calendar RTC with alarm/correction, 8-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, and three serial interfaces-CSI (SPI-like), UART/LIN, and I²C-with configurable channel counts per variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.6 V to 5.5 V - supports direct battery (Li-ion, 3x AA) and industrial rail interfacing without external regulators |
| Flash Memory | 256 KB code flash - enables complex firmware with bootloader, OTA update partitioning, and security lock bits |
| Data Flash | 8 KB with BGO - allows real-time parameter logging and calibration storage while executing application code |
| RAM | 20 KB on-chip SRAM - sufficient for RTOS stacks, communication buffers, and sensor fusion algorithms |
| ADC | 10-bit, 26-channel with internal 1.45 V reference and temperature sensor - eliminates external references for thermal monitoring |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE - extends battery life in intermittent-sensing applications |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, industrial-grade (D suffix), JEDEC standard footprint compatible with automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock input/output | Shared CSI0 clock or I²C clock - enables dual-protocol use on same pins with software configuration |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive / I²C data | Multi-function pin supporting SPI slave-in, UART debug RX, and I²C bidirectional data - simplifies board routing and protocol flexibility |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog input channel with selectable AVREFP - allows ratiometric sensing or external reference injection |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Paired with P20 to define ADC reference span - supports differential measurement and precision biasing |
| P30/INTP0/RTCCLK | External interrupt / RTC clock input | Accepts 32.768 kHz crystal or external clock for RTC - enables accurate timekeeping without dedicated RTC IC |
| P50/CLKP/CLKOUT | System clock output | Drives external logic or timing circuits at selected system frequency - useful for synchronizing peripherals or test instrumentation |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Supports boot-swap and flash-shield window - enables secure field firmware updates without external programmer |
| Background data flash rewrite | Executes application code while writing 8 KB data flash - maintains real-time responsiveness during logging |
| LIN-compliant UART | Hardware LIN bus support (ISO 17987) - reduces CPU load for automotive body electronics and industrial networks |
| Dedicated low-speed oscillator | Independent 15 kHz RC oscillator for watchdog and RTC - ensures timing continuity during main clock failure |
| On-chip voltage detector | 14-level LVD with interrupt/reset option - provides precise brown-out protection across wide supply range (1.6–5.5 V) |
| DMA controller | 4-channel DMA with 2-cycle transfer between SFR and RAM - accelerates ADC-to-memory or UART-to-buffer transfers |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
Use Scenario: Residential and commercial HVAC systems requiring precise temperature/humidity sensing, user interface, and relay/valve actuation. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition (ADC), display (GPIO/UART), communication (LIN/UART), and power sequencing (LVD/DMA). Use Value: Ultra-low-power STOP mode extends battery backup runtime; integrated LIN enables seamless integration with building automation networks. |
Use Scenario: Brushless DC motor drives in pumps, fans, and conveyors with closed-loop speed/torque control. IC Role / Device Role / Timing Role: Real-time motor control unit executing FOC algorithms, capturing hall/encoder signals, and driving gate drivers via PWM timers. Use Value: 16-bit timers with dead-time insertion and 10-bit ADC with 26 channels enable high-resolution current/voltage sampling and precise commutation timing. |
| Wireless Sensor Nodes | Programmable Logic Controllers (PLC) I/O Modules |
Use Scenario: Battery-powered environmental monitors transmitting data via BLE or sub-GHz RF modules. IC Role / Device Role / Timing Role: Sensor hub aggregating analog/digital inputs, performing local preprocessing, and managing low-power wireless transceiver wake-up. Use Value: 0.57 μA STOP mode with RTC alarm enables years of operation on coin-cell; BGO data flash stores calibration and event logs without halting application. |
Use Scenario: Modular digital/analog I/O expansion for DIN-rail PLCs in factory automation. IC Role / Device Role / Timing Role: Isolated I/O processor handling signal conditioning, diagnostics, and fieldbus communication (LIN/UART/I²C) to main CPU. Use Value: 64-pin LQFP provides ample GPIO (up to 52 N-ch open-drain) and robust ESD tolerance (6 V withstand); industrial temp grade ensures reliability in harsh enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LJDFA#X0 | No data flash (0 KB); identical core, peripherals, and package | Suitable where EEPROM emulation or persistent parameter storage is unnecessary | Select when firmware-only storage suffices and cost reduction is prioritized |
| R5F100LJDFB#X0 | LFQFP-0.50 mm (10×10 mm) package; same memory/peripherals | Better PCB area efficiency but requires finer-pitch layout and reflow profile | Choose for space-constrained designs with compatible assembly capability |
Compared with R5F100LJDFA#X0, R5F101LJDFA#X0 removes data flash to reduce cost and die size while retaining full functional compatibility for code-only use cases; R5F100LJDFB#X0 offers identical functionality in a smaller 0.5-mm-pitch LFQFP, trading assembly simplicity for board density.
Availability
R5F100LJDFA#X0 is available at Aetrix Electronics and suitable for HVAC control systems, industrial motor drives, wireless sensor nodes, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and industrial temperature compliance.
Supply support for R5F100LJDFA#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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial embedded applications demanding high integration, robustness, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100LJDFA#X0?
The R5F100LJDFA#X0 operates up to 32 MHz using its high-speed on-chip oscillator. At this frequency, active current consumption is 66 μA per MHz - resulting in approximately 2.1 mA total at 32 MHz with typical peripheral enablement. In STOP mode with only RTC and LVD active, it draws just 0.57 μA, enabling multi-year battery life in intermittent-sensing applications. These values are measured under VDD = 3.3 V, TA = 25°C conditions per R01DS0131EJ0380.
Does the R5F100LJDFA#X0 support hardware LIN bus communication?
Yes, the R5F100LJDFA#X0 supports LIN 2.x and SAE J2602 protocols via its UART peripherals with built-in LIN break detection, sync field generation, and checksum calculation. Two UART channels (U00/U01) are LIN-capable, allowing simultaneous master/slave operation or redundancy. This eliminates external LIN transceivers in many implementations and reduces BOM cost and board area for automotive body electronics and industrial networks.
How does the data flash memory in the R5F100LJDFA#X0 differ from standard code flash?
The R5F100LJDFA#X0 includes 8 KB of dedicated data flash memory separate from its 256 KB code flash. Unlike code flash, data flash supports background operation (BGO): the CPU can execute instructions from program memory while erasing or programming data flash sectors. It guarantees 1,000,000 write cycles and operates across the full VDD range (1.8–5.5 V), making it ideal for storing calibration data, device configuration, and event logs without disrupting real-time application flow.
What package and pin count does the R5F100LJDFA#X0 use, and what does the #X0 suffix indicate?
The R5F100LJDFA#X0 uses a 64-pin LQFP package with 0.65-mm pitch (JEDEC MS-026), measuring 12 × 12 mm. The #X0 suffix denotes embossed tape packaging - specifically, machine-ready reels for high-volume SMT assembly. This contrasts with #V0 (tray) and #U0 (QFN tape) variants. The 'D' in the part number confirms industrial temperature grade (-40°C to +85°C), critical for deployment in factory-floor and outdoor equipment.
Can the R5F100LJDFA#X0 operate from a single 1.8 V supply, and what peripherals remain functional?
Yes, the R5F100LJDFA#X0 supports operation from 1.6 V to 5.5 V, including 1.8 V nominal supplies. At 1.8 V, the high-speed oscillator is limited to ≤8 MHz, and the ADC resolution degrades to 8-bit (vs. 10-bit at ≥2.7 V). All core functions - GPIO, timers, UART, I²C, CSI, RTC, and LVD - remain fully operational. However, the internal temperature sensor and 1.45 V reference require ≥2.7 V and are disabled below that threshold, per Section 1.1 of R01DS0131EJ0380.
R5F100LJDFA#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):
- 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:
R5F100LJDFA#X0 FAQ
1.How can I place an order for R5F100LJDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LJDFA#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 R5F100LJDFA#X0 reliable?
The price and inventory of R5F100LJDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LJDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LJDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LJDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LJDFA#X0?
R5F100LJDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LJDFA#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 R5F100LJDFA#X0?
For technical support, including R5F100LJDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LJDFA#X0 requirements.
6.How does Aetrix verify that R5F100LJDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LJDFA#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 R5F100LJDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LJDFA#X0?
All R5F100LJDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LJDFA#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 R5F100LJDFA#X0 part is unused and in its original packaging.
Return procedure for R5F100LJDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F100LJDFA#X0 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…
