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Renesas R5F101LJDFB#X0
- Part No.:
- R5F101LJDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LJDFB#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F101LJDFB#X0 from Renesas is a 64-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with 192 KB flash, 8 KB data flash, 16 KB RAM, and industrial-grade -40°C to +85°C operation. It integrates 52-channel 10-bit ADC, real-time clock with calendar, 16× 16-bit timers, UART/LIN, I²C, CSI, and ultra-low-power HALT/STOP/SNOOZE modes - deployed in smart metering and industrial sensor nodes.
For engineers reviewing the R5F101LJDFB#X0 datasheet, R5F101LJDFB#X0 pinout, R5F101LJDFB#X0 application, or R5F101LJDFB#X0 equivalent, key selection criteria include its 192 KB code flash with self-programming, 10-bit ADC resolution across 52 analog inputs, RTC calendar support, and LFQFP-64 (10 × 10 mm) package compatibility with high-density industrial PCB layouts.
Technical Context
The R5F101LJDFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 192 KB on-chip flash (1 KB block size), 8 KB data flash with background operation (BGO), and 16 KB RAM - all operating across 1.6–5.5 V supply.
Peripherals include dual DMA channels, 16-bit × 16-bit multiply-accumulate unit, 12-bit interval timer, watchdog timer with dedicated low-speed oscillator, and hardware LIN bus support via UART. Power management features HALT, STOP, and SNOOZE modes achieving 66 μA/MHz active current and 0.57 μA RTC+LVD retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at up to 32 MHz |
| Flash Memory | 192 KB code flash (1 KB erase blocks); supports secure boot swap and flash shield window |
| Data Flash | 8 KB with BGO; allows concurrent program execution during data rewrite (1M write cycles) |
| RAM | 16 KB on-chip SRAM; includes dedicated flash library RAM area starting at FAF00H |
| ADC | 10-bit resolution, 52-channel input; internal 1.45 V reference and temperature sensor enabled in HS mode |
| RTC | Calendar-mode RTC with alarm and clock correction; operates independently in STOP mode |
| Supply Range | 1.6 V to 5.5 V; supports direct battery (Li-ion, alkaline) and regulated rail interfacing |
| Temp Range | -40°C to +85°C (Industrial D-grade); qualified for extended thermal cycling in factory automation |
Pinout & Package
64-pin LFQFP (10 × 10 mm, 0.50-mm pitch), RoHS-compliant, moisture sensitivity level 3. Package code FB per Renesas ordering nomenclature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain decoupling; supports split-rail noise isolation |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67 | General-purpose I/O | 64 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3.0 V logic interfacing |
| P11, P12, P13 | UART0/UART1/LIN | Hardware LIN transceiver support on UART0; enables single-wire automotive/sensor network integration without external transceiver |
| P10, P11, P14, P15 | CSI0/CSI1/I²C0 | Shared serial peripheral pins; CSI supports SPI-like master/slave with programmable clock polarity/phase |
| P20–P25 | ANI0–ANI5 | Analog input channels; part of 52-channel ADC group with selectable reference (AVREFP/AVREFM or internal 1.45 V) |
| XT1, XT2 | Crystal oscillator terminals | Supports 32.768 kHz crystal for RTC; enables precise timekeeping with automatic clock correction |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD with 14-level voltage detection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA typical with RTC + LVD active - enables multi-year battery life in remote sensors |
| Self-programmable flash | Boot swap and flash shield window enable field firmware updates with rollback safety and IP protection |
| Hardware LIN support | UART0 implements full LIN 2.2 protocol stack in hardware - eliminates MCU overhead for automotive body electronics |
| Background data flash rewrite | BGO allows uninterrupted application execution during 8 KB data flash reprogramming - critical for logging and OTA parameter updates |
| Multi-voltage I/O interface | Configurable I/Os tolerate 1.8 V, 2.5 V, and 3.0 V logic levels - simplifies interconnect with mixed-voltage peripherals |
| On-chip temperature sensor | Calibrated sensor accessible via ADC channel; used for thermal compensation in industrial control loops |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential and commercial electricity meters requiring long-term accuracy, tamper detection, and firmware update capability. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, secure flash updates, and RS-485/LIN communication. Use Value: 192 KB flash stores dual firmware images; 10-bit ADC resolves <1% error over 52 channels; RTC calendar ensures accurate kWh accumulation across power outages. | Use Scenario: Wireless or wired condition-monitoring nodes in factory environments measuring vibration, temperature, and humidity. IC Role / Device Role / Timing Role: Real-time data acquisition hub with low-power scheduling, sensor fusion, and LIN/UART gateway to PLC or HMI. Use Value: STOP mode extends battery life to >5 years; on-chip temperature sensor enables self-calibration; 16 KB RAM buffers burst-acquired sensor streams before transmission. |
| Home Appliance Control | Building Automation Controller |
Use Scenario: Washing machine, HVAC, or refrigerator mainboards needing motor control, user interface, and energy monitoring. IC Role / Device Role / Timing Role: Central MCU executing PID motor control, touch-key scanning, display driver timing, and power consumption logging. Use Value: 16× 16-bit timers precisely manage BLDC commutation; 52-channel ADC monitors thermistors, current shunts, and pressure sensors; SNOOZE mode reduces idle power by 90%. | Use Scenario: Lighting control panels, access systems, or HVAC controllers requiring reliability, security, and interoperability with legacy bus protocols. IC Role / Device Role / Timing Role: Protocol bridge and local decision engine handling DALI, KNX, or LIN physical layer interfacing and rule-based actuation. Use Value: Hardware LIN support replaces external transceivers; flash shield window prevents unauthorized firmware modification; 1.6–5.5 V operation accommodates wide-range building power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LJAFP#V0 | LQFP-64 (0.65-mm pitch); same flash/RAM/ADC specs but larger footprint and different thermal profile | Suitable where board space permits larger pad pitch and higher reflow thermal mass is acceptable | Select when legacy LQFP-64 tooling exists or thermal dissipation requirements exceed LFQFP limits |
| R5F101LJAFB#X0 | Identical electrical specs and pinout; differs only in packaging specification (#X0 = embossed tape vs #V0 = tray) | No functional difference; identical use in automated SMT lines with tape-and-reel feeders | Choose #X0 for high-volume pick-and-place assembly; #V0 preferred for prototyping or low-volume hand-solder evaluation |
Compared with R5F101LJDFB#X0, the R5F101LJAFP#V0 offers identical functionality in a larger LQFP package better suited for thermal-heavy industrial drives, while R5F101LJAFB#X0 is a packaging variant with no electrical or functional distinction - enabling seamless transition between production tape formats.
Availability
R5F101LJDFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle assurance, and industrial temperature qualification.
Supply support for R5F101LJDFB#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 industrial control applications - combining high integration, robust peripheral sets, and sub-μA standby operation.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R5F101LJDFB#X0?
The R5F101LJDFB#X0 operates up to 32 MHz using the high-speed on-chip oscillator with ±1.0% accuracy. At this frequency, active current is 66 μA/MHz (2.11 mA typical at 32 MHz, VDD = 3.3 V, TA = 25°C). In STOP mode with RTC and LVD active, it draws just 0.57 μA - verified per R01DS0131EJ0380 Rev.3.80 datasheet Section 1.1.
Does the R5F101LJDFB#X0 include hardware support for LIN communication?
Yes, the R5F101LJDFB#X0 integrates hardware LIN protocol support via UART0, compliant with LIN 2.2. This enables direct single-wire communication without external transceivers - confirmed in Section 1.1 "Serial interface" of the R01DS0131EJ0380 datasheet, which lists "UART/UART (LIN-bus supported): 2 to 4 channels" for the RL78/G13 family.
How much data flash memory does the R5F101LJDFB#X0 provide, and what is its endurance?
The R5F101LJDFB#X0 includes 8 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V. Background operation (BGO) allows CPU execution from code flash during data flash rewriting - specified in Section 1.1 "Data Flash Memory" of R01DS0131EJ0380 Rev.3.80.
What is the ADC resolution and channel count supported by the R5F101LJDFB#X0?
The R5F101LJDFB#X0 features an 8/10-bit resolution successive-approximation ADC with up to 52 analog input channels. Resolution is selectable per channel; 10-bit mode is standard for precision sensing. Internal 1.45 V reference and temperature sensor are available - detailed in Section 1.1 "A/D converter" of R01DS0131EJ0380 Rev.3.80.
Is the R5F101LJDFB#X0 qualified for industrial temperature range operation?
Yes, the R5F101LJDFB#X0 is rated for -40°C to +85°C operation (Industrial D-grade), as indicated by the "D" suffix in its part number decoding per Figure 1-1 of R01DS0131EJ0380 Rev.3.80. This qualification covers full electrical performance across the range, including flash programming, RTC accuracy, and ADC linearity.
R5F101LJDFB#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:
- -
- 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:
R5F101LJDFB#X0 FAQ
1.How can I place an order for R5F101LJDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LJDFB#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 R5F101LJDFB#X0 reliable?
The price and inventory of R5F101LJDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LJDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LJDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LJDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LJDFB#X0?
R5F101LJDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LJDFB#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 R5F101LJDFB#X0?
For technical support, including R5F101LJDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LJDFB#X0 requirements.
6.How does Aetrix verify that R5F101LJDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LJDFB#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 R5F101LJDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LJDFB#X0?
All R5F101LJDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LJDFB#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 R5F101LJDFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LJDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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