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Renesas R5F101LJDFA#X0
- Part No.:
- R5F101LJDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LJDFA#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,532
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Product details
Overview
R5F101LJDFA#X0 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 8 KB RAM, RL78/G13 16-bit low-power MCU with integrated RTC, 10-bit ADC (26 channels), and UART/I²C/CSI interfaces - deployed in industrial sensor nodes, battery-powered HMI controllers, and smart metering peripherals requiring sub-1 μA STOP mode current and 41 DMIPS at 32 MHz.
For engineers reviewing the R5F101LJDFA#X0 datasheet, R5F101LJDFA#X0 pinout, R5F101LJDFA#X0 application, or R5F101LJDFA#X0 equivalent, key selection criteria include its data flash omission (vs. R5F100Lx series), -40°C to +85°C industrial temperature grade (D suffix), LQFP-64 package with 0.65-mm pitch, and support for background data flash rewriting via BGO.
Technical Context
The R5F101LJDFA#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, enabling instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, calendar-based real-time clock with alarm and correction, and on-chip voltage detector with 14 selectable LVD levels.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 2× UART/LIN interfaces, 2–8× CSI channels, and an 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor - all operating across 1.6–5.5 V supply and compliant with industrial ambient range (-40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control and ultra-low-power HALT/STOP/SNOOZE modes. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance while maintaining 66 μA/MHz active current efficiency. |
| Flash Memory | 128 KB code flash (1 KB block size); supports self-programming with boot swap and flash shield window security. |
| Data Flash | Not integrated; R5F101x series omits data flash - requires external EEPROM or SRAM for nonvolatile parameter storage. |
| RAM Size | 8 KB on-chip RAM; sufficient for real-time control stacks, communication buffers, and sensor fusion algorithms. |
| ADC Resolution & Channels | 10-bit A/D converter with 26 analog input channels and internal 1.45 V reference; enables multi-sensor monitoring without external references. |
| Operating Voltage | 1.6 V to 5.5 V single supply; supports direct connection to Li-ion, 3.3 V, or 5 V rails without level-shifting. |
| Temperature Range | -40°C to +85°C (industrial grade D); qualified for factory automation, building controls, and outdoor metering environments. |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin supporting master/slave SPI clock or I²C bus clock; configurable per peripheral mode register. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling serial interface flexibility: SPI data-in, UART receive, debug tool input, or I²C bidirectional data line. |
| P12/SO00/TxD0/TOOLTxD/SDA00 | SPI Output / UART TX / I²C Data | Enables full-duplex SPI, UART transmit, debug output, or shared I²C data - reduces external component count in mixed-protocol systems. |
| P13/INTP0/ANI3 | External Interrupt / ADC Input | Dual-role pin allows wake-up-from-STOP via external event or analog sensing - critical for low-power sensor polling architectures. |
| P14/INTP1/ANI4 | External Interrupt / ADC Input | Supports synchronized interrupt-triggered ADC sampling; used in time-critical edge detection and analog threshold monitoring. |
| P20/ANI0/AVREFP | ADC Channel 0 / Analog VREF+ | Primary analog input with dedicated positive reference terminal - improves ADC accuracy when external reference is applied. |
| P21/ANI1/AVREFM | ADC Channel 1 / Analog VREF− | Provides differential reference capability; enables ratiometric measurements and noise rejection in precision analog front-ends. |
| P22/ANI2 | ADC Channel 2 | General-purpose analog input; supports temperature sensor readout when HS mode is selected per datasheet Note 2. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA typical (RTC + LVD active); enables multi-year battery life in wireless sensor endpoints. |
| Background Data Flash Operation | Not applicable - R5F101LJDFA#X0 lacks data flash; eliminates BGO complexity but requires external NV memory. |
| On-chip high-accuracy oscillator | +/-1.0% over 1.8–5.5 V and -20 to +85°C; removes need for external crystal in cost-sensitive applications. |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction; supports time-stamped logging and scheduled wake-up without host intervention. |
| DMA controller (4-channel) | 2-clock transfers between SFR and RAM; offloads CPU during ADC burst reads or UART DMA buffering. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations; accelerates PID control and filtering math. |
Applications
| Industrial Sensor Node | Smart Energy Meter Interface |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/pressure node transmitting data via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, RTC-scheduled wake-up, low-power sleep transitions, and UART-to-modem interface. Use Value: 0.57 μA STOP current extends 2xAA battery life beyond 5 years; integrated 10-bit ADC eliminates external signal conditioning ICs. |
Use Scenario: Sub-metering module interfacing with polyphase energy ICs and optical pulse readers in residential meters. IC Role / Device Role / Timing Role: Peripheral coordinator handling pulse counting, tamper detection, RS-485 communication, and secure firmware updates. Use Value: 26-channel ADC supports simultaneous voltage/current/neutral monitoring; LIN-capable UART enables legacy utility protocol compatibility. |
| Factory HMI Keypad Controller | Building Automation Actuator |
|
Use Scenario: Touchless keypad with capacitive sensing and LED feedback in dusty industrial enclosures. IC Role / Device Role / Timing Role: Dedicated UI processor scanning matrix keys, driving 8-segment LEDs, and communicating status via I²C to main PLC. Use Value: On-chip key interrupt function reduces polling overhead; N-ch open-drain I/Os tolerate 6 V transients common in factory EMI environments. |
Use Scenario: HVAC damper actuator with position feedback, motor drive enable, and fault reporting over BACnet MS/TP. IC Role / Device Role / Timing Role: Motion supervisor executing closed-loop position control using PWM timers and ADC feedback, while managing thermal shutdown via LVD. Use Value: 16× 16-bit timers support precise dual-edge PWM for brushless motor commutation; 14-level LVD enables programmable brown-out response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LJDFA#X0 | Includes 8 KB data flash; identical 128 KB code flash, 8 KB RAM, and LQFP-64 package. | Preferred where field-updatable calibration tables or logging data must reside on-chip without external memory. | Select R5F100LJDFA#X0 if data flash persistence is required; otherwise R5F101LJDFA#X0 reduces BOM cost and simplifies flash management. |
| R5F101LJDFB#X0 | Same core, memory, and peripherals but in 64-pin LFQFP (0.5-mm pitch); smaller footprint (10 × 10 mm vs. 12 × 12 mm). | Better suited for space-constrained PCBs where fine-pitch assembly is available and thermal dissipation permits. | Choose R5F101LJDFB#X0 for compact designs with compatible reflow profiles; verify mechanical clearance and test probe access. |
Compared with R5F100LJDFA#X0, the R5F101LJDFA#X0 trades on-chip data flash for lower unit cost and simplified firmware architecture; versus R5F101LJDFB#X0, it offers larger pad pitch for higher manufacturing yield in standard SMT lines.
Availability
R5F101LJDFA#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter interfaces, and factory HMI controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized Renesas distribution channels.
Supply support for R5F101LJDFA#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 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - emphasizing rapid development, minimal external components, and robust operation across industrial temperature ranges.
FAQ
What is the flash memory configuration of the R5F101LJDFA#X0?
The R5F101LJDFA#X0 contains 128 KB of on-chip code flash memory organized in 1 KB blocks, with no integrated data flash. This aligns with the R5F101x series designation indicating data flash omission. The R5F101LJDFA#X0 supports self-programming, boot swap, and flash shield window functions for secure firmware updates - all implemented within its 128 KB code flash array.
Does the R5F101LJDFA#X0 support real-time clock functionality?
Yes, the R5F101LJDFA#X0 integrates a full-featured real-time clock (RTC) with calendar support for 99 years, alarm interrupt generation, and hardware clock correction. It operates independently in STOP mode with only 0.57 μA current draw, enabling time-stamped event logging and scheduled wake-up without external RTC ICs or crystals.
What package type and pin pitch does the R5F101LJDFA#X0 use?
The R5F101LJDFA#X0 uses a 64-pin LQFP package with 0.65-mm pin pitch and 12 × 12 mm body size (RENESAS Code PLQP0064JA-A). The #X0 suffix confirms embossed tape packaging, and the 'D' in the part number denotes industrial temperature grade (-40°C to +85°C), validated per Renesas qualification standards.
How many analog input channels does the R5F101LJDFA#X0 ADC support?
The R5F101LJDFA#X0 features a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25), including dedicated AVREFP/AVREFM pins for precision ratiometric measurement. Internal 1.45 V reference and temperature sensor are available, though temperature sensing requires HS-mode activation per datasheet Note 2.
Is the R5F101LJDFA#X0 pin-compatible with any R5F100x devices?
The R5F101LJDFA#X0 shares identical pinout, package, and peripheral mapping with R5F100LJDFA#X0 - differing only in the absence of data flash. Engineers may migrate from R5F100LJDFA#X0 to R5F101LJDFA#X0 without PCB changes, provided firmware accommodates missing data flash routines and external nonvolatile storage is added if needed.
R5F101LJDFA#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:
R5F101LJDFA#X0 FAQ
1.How can I place an order for R5F101LJDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LJDFA#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 R5F101LJDFA#X0 reliable?
The price and inventory of R5F101LJDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LJDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LJDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LJDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LJDFA#X0?
R5F101LJDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LJDFA#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 R5F101LJDFA#X0?
For technical support, including R5F101LJDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LJDFA#X0 requirements.
6.How does Aetrix verify that R5F101LJDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LJDFA#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 R5F101LJDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LJDFA#X0?
All R5F101LJDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LJDFA#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 R5F101LJDFA#X0 part is unused and in its original packaging.
Return procedure for R5F101LJDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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