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Renesas R5F101MJDFB#X0
- Part No.:
- R5F101MJDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MJDFB#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,609
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Product details
Overview
R5F101MJDFB#X0 from Renesas is a 52-pin LFQFP (10 × 10 mm, 0.65-mm pitch), 192 KB flash, 8 KB data flash, 16 KB RAM RL78/G13 16-bit microcontroller operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes - used in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101MJDFB#X0 datasheet, R5F101MJDFB#X0 pinout, R5F101MJDFB#X0 application, or R5F101MJDFB#X0 equivalent, key selection criteria include its 52-pin LFQFP package, 192 KB code flash with self-programming and boot swap, integrated RTC + calendar + alarm, 10-bit 26-channel ADC, and support for UART/LIN, I²C, and CSI serial interfaces in industrial-temperature (-40°C to +85°C) operation.
Technical Context
The R5F101MJDFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum 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 and clock correction, and watchdog timer with dedicated low-speed oscillator.
Its peripheral set includes up to 26 analog inputs with internal 1.45 V reference and temperature sensor, 8–16 channels of 16-bit timers, 2–4 DMA channels with 2-clock transfers between SFR and RAM, and hardware multiplier/divider/MAC supporting signed/unsigned 16×16→32, 32÷32→32, and 16×16+32 operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 192 KB code flash with block erase protection, boot swap, and flash shield window |
| Data Flash | 8 KB background operation (BGO) capable, 1M rewrite cycles (TYP) |
| RAM | 16 KB on-chip RAM, including dedicated areas for flash library use (start address FAF00H) |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V supply range supports single-cell Li-ion, 3.3 V, and 5 V systems |
| Temperature Range | -40°C to +85°C (Industrial grade D-application marking) |
Pinout & Package
Package: 52-pin LFQFP (10 × 10 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support noise isolation; VDD pins accept 1.6–5.5 V |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin enables shared hardware resources across serial protocols |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART receive / debug RX / I²C data | High-density pin multiplexing reduces external component count in space-constrained designs |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Enables ratiometric sensing using external or internal reference voltage |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Supports differential ADC measurements and flexible reference configuration |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion |
| XTAL1/XTAL2 | Crystal oscillator input/output | Supports 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE - extends battery life in intermittent-sensing applications |
| On-chip debug & programming | Fully integrated on-chip debug interface with flash self-programming and boot swap for field firmware updates |
| Serial interface flexibility | Up to 10 I²C/Simplified I²C channels, 4 UART/LIN channels, and 8 CSI (SPI-compatible) channels - simplifies multi-sensor communication |
| Real-time clock with calendar | Full 99-year calendar, alarm, and clock correction function - eliminates need for external RTC IC in time-stamped logging |
| Hardware acceleration | Integrated 16×16 multiplier, 32÷32 divider, and MAC unit - accelerates motor control, sensor fusion, and cryptographic primitives |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Bidirectional energy measurement with time-of-use billing and tamper detection in residential/commercial meters. IC Role / Device Role / Timing Role: Main system controller managing metrology IC interface, LCD driver, RTC timestamping, and secure firmware updates via UART/LIN. Use Value: 192 KB flash stores dual firmware images (boot swap), 8 KB data flash logs consumption history, and STOP-mode current (0.57 μA) enables >10-year battery backup. | Use Scenario: Wireless vibration/temperature/humidity monitoring node in predictive maintenance systems. IC Role / Device Role / Timing Role: Sensor aggregator and edge preprocessor with ADC sampling, FFT-ready MAC unit, and RTC-triggered wake-up for scheduled reporting. Use Value: 26-channel 10-bit ADC captures multi-sensor analog data; SNOOZE mode allows low-latency wake-up from serial activity without full CPU restart. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: MCU in washing machine main board handling motor control, user interface, safety interlocks, and energy monitoring. IC Role / Device Role / Timing Role: Real-time motor timing controller with PWM generation, fault detection via LVD, and LIN bus communication with display module. Use Value: 16-bit timers with dead-time insertion support BLDC commutation; 1.6–5.5 V operation tolerates wide input rail fluctuations during motor startup. | Use Scenario: Standalone HVAC zone controller with temperature setpoint, fan speed, valve actuation, and BACnet/IP gateway interface. IC Role / Device Role / Timing Role: System coordinator managing analog sensor inputs, relay/valve drivers, and UART-to-Ethernet bridge firmware. Use Value: Integrated 1.45 V reference and temperature sensor enable calibrated ambient sensing; 52-pin LFQFP provides sufficient I/O for discrete actuators and status LEDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101MJAFP#V0 | Same core, memory, and peripherals; differs only in 52-pin LQFP (0.65-mm pitch) vs. LFQFP package | LQFP variant uses larger footprint (10 × 10 mm same size but different lead form); requires PCB rework for direct replacement | Select when existing layout uses standard LQFP land pattern and thermal pad is not required |
| R5F101LJDFB#X0 | 64-pin LFQFP, identical feature set but with 128 KB flash, 8 KB data flash, 12 KB RAM | Higher I/O count (up to 120 pins) and additional timers/serial channels suit more complex control tasks | Choose for designs needing extra GPIO, CAN interface (not on R5F101MJDFB#X0), or future-proofing with larger memory headroom |
Compared with R5F101MJDFB#X0, R5F101MJAFP#V0 offers identical functionality in a standard LQFP package - easing procurement but requiring minor layout adaptation - while R5F101LJDFB#X0 trades pin count for expanded memory and I/O, targeting scalable industrial controllers where peripheral density outweighs compactness.
Availability
R5F101MJDFB#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-grade temperature performance.
Supply support for R5F101MJDFB#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 - balancing performance, integration, and energy efficiency without external support components.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101MJDFB#X0?
The R5F101MJDFB#X0 operates at up to 32 MHz using its high-speed on-chip oscillator and achieves 41 DMIPS (Dhrystone MIPS) at that frequency. Its minimum instruction execution time is 0.03125 μs under these conditions, verified per Renesas R01DS0131EJ0380 Rev.3.80 specification.
Does the R5F101MJDFB#X0 include an integrated RTC with calendar functionality?
Yes, the R5F101MJDFB#X0 includes a dedicated real-time clock (RTC) module supporting full calendar operation for 99 years, alarm interrupt generation, and clock correction - all functional in STOP mode with only 0.57 μA current draw, as confirmed in the RL78/G13 datasheet section 1.1 Features.
What are the flash memory configuration details for the R5F101MJDFB#X0?
The R5F101MJDFB#X0 contains 192 KB of code flash memory and 8 KB of data flash memory. Code flash is organized in 1 KB blocks with programmable erase/write protection; data flash supports background operation (BGO) and guarantees 1,000,000 write cycles (typical), per R01DS0131EJ0380 Rev.3.80.
Which serial communication interfaces are supported by the R5F101MJDFB#X0?
The R5F101MJDFB#X0 supports three serial interface types: Simplified SPI (CSI) with up to 8 channels, UART/LIN with up to 4 channels (including LIN physical layer compliance), and I²C/Simplified I²C with up to 10 channels - all configurable via shared port pins as documented in the RL78/G13 peripheral overview.
What is the operating temperature range and industrial qualification status of the R5F101MJDFB#X0?
The R5F101MJDFB#X0 is qualified for industrial applications with an operating ambient temperature range of -40°C to +85°C (denoted by "D" in the part number suffix), meeting JEDEC JESD22-A104 reliability standards and supporting extended-life deployments in factory automation and infrastructure equipment.
R5F101MJDFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 64
- 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 17x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101MJDFB#X0 FAQ
1.How can I place an order for R5F101MJDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MJDFB#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 R5F101MJDFB#X0 reliable?
The price and inventory of R5F101MJDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MJDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101MJDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MJDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MJDFB#X0?
R5F101MJDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MJDFB#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 R5F101MJDFB#X0?
For technical support, including R5F101MJDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MJDFB#X0 requirements.
6.How does Aetrix verify that R5F101MJDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101MJDFB#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 R5F101MJDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101MJDFB#X0?
All R5F101MJDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MJDFB#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 R5F101MJDFB#X0 part is unused and in its original packaging.
Return procedure for R5F101MJDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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