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Renesas R5F101MJDFA#V0
- Part No.:
- R5F101MJDFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MJDFA#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,318
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Product details
Overview
R5F101MJDFA#V0 from Renesas is an RL78/G13 80-pin LQFP MCU with 128 KB flash, 12 KB RAM, and no data flash memory, operating from 1.6 V to 5.5 V across -40°C to +85°C industrial temperature range. It delivers 41 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, and SPI interfaces for embedded control in metering and sensor nodes.
For engineers reviewing the R5F101MJDFA#V0 datasheet, R5F101MJDFA#V0 pinout, R5F101MJDFA#V0 application, or R5F101MJDFA#V0 equivalent, key selection criteria include its 80-pin LQFP-0.65mm package, absence of on-chip data flash, industrial-grade temperature support, and compatibility with Renesas' RL78 toolchain and E2 studio IDE for rapid firmware development and low-power optimization.
Technical Context
The R5F101MJDFA#V0 implements the RL78 CPU core-a CISC architecture with 3-stage pipeline-supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory map spans 1 MB address space with banked 8-bit general-purpose registers.
Power management includes HALT, STOP, and SNOOZE modes, plus on-chip POR and selectable 14-level LVD. Peripheral integration covers 16 × 16-bit timers, real-time clock with calendar/alarm, DMA controller (4 channels), and 10-bit A/D converter with internal 1.45 V reference and temperature sensor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control |
| Flash Memory | 128 KB code flash - supports self-programming with boot swap and flash shield window |
| RAM | 12 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and sensor data processing |
| ADC | 10-bit resolution, 26 input channels - enables simultaneous monitoring of multiple analog sensors |
| Supply Voltage | 1.6 V to 5.5 V - allows direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments without derating |
| Low-Power Modes | HALT, STOP, SNOOZE - achieves 0.57 μA in STOP with RTC + LVD active for battery-backed timekeeping |
Pinout & Package
Package: 80-pin plastic LQFP (14 × 14 mm, 0.65-mm pitch), RoHS-compliant, tray packaging (#V0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin supports master/slave SPI or I²C communication; requires external pull-up for I²C |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / Debug RX / I²C Data | Multi-function pin enabling serial debug, sensor interface, or LIN bus receive via software-configurable peripheral routing |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel; doubles as positive reference for ADC measurements when AVREFM is used |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input; serves as negative reference to enable ratiometric or differential ADC configurations |
| P22/ANI2 | Analog Input 2 | Dedicated analog input supporting temperature sensor or voltage monitoring without reference conflict |
| P30/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Hardware reset input during programming; also triggers interrupt on falling edge for wake-up from STOP mode |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 66 μA/MHz active current enables multi-year battery life in wireless sensor nodes |
| On-chip real-time clock (RTC) | Calendar function (99 years), alarm, and clock correction - eliminates need for external RTC IC |
| Background data flash rewrite | Not applicable - R5F101MJDFA#V0 lacks data flash; code flash self-programming supported instead |
| Multi-protocol serial interface | UART (LIN-capable), I²C, and CSI (SPI-compatible) on shared pins - reduces PCB routing complexity |
| DMA controller | 4-channel DMA with 2-clock transfers between SFR and RAM - offloads CPU during ADC sampling or UART streaming |
| Temperature sensor & reference | Integrated bandgap temperature sensor and 1.45 V internal reference - enables calibration-free thermal monitoring |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Bidirectional energy measurement with tariff switching, tamper detection, and secure data logging. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing LCD display, and handling RS-485/IR communication. Use Value: 128 KB flash stores dual tariff firmware and encryption keys; 10-bit ADC with 26 channels supports shunt-based current sensing and voltage monitoring. |
Use Scenario: Wireless condition-monitoring node measuring vibration, temperature, and humidity in factory equipment. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog/digital inputs, performing FFT preprocessing, and scheduling BLE/Wi-Fi transmission bursts. Use Value: 0.57 μA STOP mode extends coin-cell battery life to >5 years; RTC alarm wakes MCU only for scheduled sampling. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main board controlling motor drivers, water valves, and user interface with safety monitoring. IC Role / Device Role / Timing Role: Real-time motor control coordinator with PWM generation, fault detection (overcurrent, overtemperature), and HMI state management. Use Value: 16 × 16-bit timers support precise 3-phase motor commutation; LVD with 14 levels enables configurable brown-out protection for variable AC line conditions. |
Use Scenario: HVAC control panel integrating thermostat, damper actuation, and CO₂ sensor feedback in commercial buildings. IC Role / Device Role / Timing Role: Central logic engine managing PID loops, Modbus RTU communication, and non-volatile parameter storage. Use Value: 1.6–5.5 V supply range tolerates wide input from 24 V DC power supplies; I²C and UART allow daisy-chained sensor networks without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101MLDFA#V0 | Same 80-pin LQFP package, identical core/peripherals, but 64 KB flash and 4 KB RAM | Lower memory footprint suits simpler control tasks without complex UI or protocol stacks | Select when firmware size < 64 KB and BOM cost reduction is prioritized over future scalability |
| R5F100MJDFA#V0 | Same package and pinout, but includes 8 KB data flash and operates at -40°C to +105°C | Required for applications needing EEPROM-like parameter storage or extended temperature operation | Choose when field-updatable calibration data or automotive under-hood deployment is needed |
Compared with R5F101MLDFA#V0, the R5F101MJDFA#V0 provides double flash and triple RAM for richer firmware features; versus R5F100MJDFA#V0, it trades data flash and extended temperature rating for lower cost and reduced power in standard industrial use cases.
Availability
R5F101MJDFA#V0 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 consistent parametric performance across production batches.
Supply support for R5F101MJDFA#V0 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 industrial, automotive, and enterprise markets.
The RL78/G13 product line targets cost-sensitive, ultra-low-power embedded applications such as metering, sensor hubs, and appliance control, emphasizing energy efficiency, integrated peripherals, and toolchain maturity.
FAQ
Does R5F101MJDFA#V0 include on-chip data flash memory?
No, R5F101MJDFA#V0 does not include data flash memory. The "101" in the part number explicitly indicates no data flash, unlike "100" variants (e.g., R5F100MJDFA#V0) which integrate 8 KB. Code flash self-programming remains supported for firmware updates, but non-volatile parameter storage requires external EEPROM or FRAM.
What is the maximum ADC sampling rate achievable with R5F101MJDFA#V0?
The R5F101MJDFA#V0 supports up to 1.25 MSPS ADC conversion rate when using the internal high-speed oscillator at 32 MHz and configuring the ADC clock prescaler for minimum division. This enables real-time acquisition of fast transients in motor control or audio pre-processing applications.
Can R5F101MJDFA#V0 operate reliably at 5.5 V supply with full peripheral functionality?
Yes, R5F101MJDFA#V0 is fully specified for 1.6 V to 5.5 V operation across its entire industrial temperature range (-40°C to +85°C). All peripherals-including ADC, UART, timers, and I/O-retain full functionality and timing accuracy at 5.5 V, eliminating need for external regulators in 5 V systems.
Is R5F101MJDFA#V0 pin-compatible with any R5F100x series devices?
R5F101MJDFA#V0 shares identical 80-pin LQFP-0.65mm mechanical footprint and pinout with R5F100MJDFA#V0 and other "MJ" variants in the RL78/G13 family. However, functional differences-such as absence of data flash and different temperature grade-require firmware and system-level validation before substitution.
Which debug interface does R5F101MJDFA#V0 support, and what hardware is required?
R5F101MJDFA#V0 supports on-chip debugging via the single-wire debug (SWD) interface using the TOOLRxD/TOOLRST pins. A Renesas E2 or E2 Lite emulator is required for full JTAG/SWD access, breakpoint setting, and real-time trace; no external debug header is needed beyond standard SWD signal connections.
R5F101MJDFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
R5F101MJDFA#V0 FAQ
1.How can I place an order for R5F101MJDFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MJDFA#V0 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 R5F101MJDFA#V0 reliable?
The price and inventory of R5F101MJDFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MJDFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F101MJDFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MJDFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MJDFA#V0?
R5F101MJDFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MJDFA#V0 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 R5F101MJDFA#V0?
For technical support, including R5F101MJDFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MJDFA#V0 requirements.
6.How does Aetrix verify that R5F101MJDFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101MJDFA#V0 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 R5F101MJDFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F101MJDFA#V0?
All R5F101MJDFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MJDFA#V0, 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 R5F101MJDFA#V0 part is unused and in its original packaging.
Return procedure for R5F101MJDFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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