Renesas R5F100MHDFA#X0
- Part No.:
- R5F100MHDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F100MHDFA#X0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100MHDFA#X0 from Renesas is a 80-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 128 KB flash, 12 KB RAM, and 8 KB data flash. It operates from 1.6–5.5 V, delivers 41 DMIPS at 32 MHz, and supports ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD). It targets industrial control panels requiring deterministic real-time response, low-voltage operation, and integrated analog peripherals.
For engineers reviewing the R5F100MHDFA#X0 datasheet, R5F100MHDFA#X0 pinout, R5F100MHDFA#X0 application, or R5F100MHDFA#X0 equivalent, key selection criteria include its 80-pin LQFP package with 26-channel 10-bit ADC, dual UART/LIN support, RTC with calendar, and industrial-grade temperature range (−40°C to +85°C).
Technical Context
The R5F100MHDFA#X0 implements the RL78 CPU core-a CISC architecture with 3-stage pipeline and variable instruction timing (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), background data flash rewriting (BGO), and hardware multiplier/divider for efficient signal processing.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 2× CSI (SPI-compatible) interfaces, and DMA controller with 4 channels-enabling concurrent sensor acquisition, motor control PWM generation, and serial communication without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - enables 41 DMIPS performance for real-time control loops |
| Flash Memory | 128 KB code flash - sufficient for complex firmware with bootloader and OTA update partitioning |
| Data Flash | 8 KB - supports 1,000,000 write cycles for logging, calibration storage, and parameter retention |
| RAM | 12 KB on-chip RAM - accommodates stack, heap, and real-time buffers for multi-tasking RTOS use |
| ADC | 10-bit resolution, 26 input channels - allows simultaneous monitoring of multiple sensors (voltage, temp, current) |
| Operating Voltage | 1.6–5.5 V - compatible with single-cell Li-ion, 3.3 V, and 5 V system rails without level-shifting |
| Temp Range | −40°C to +85°C - certified for industrial ambient environments per AEC-Q100 Class 2-equivalent stress profile |
Pinout & Package
Package: 80-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI clock / I²C clock | Shared pin enables flexible interface selection; requires software configuration for mode switching |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / debug RX / I²C data | Multi-function I/O supports in-system programming, serial diagnostics, and sensor bus connectivity |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Dual-role pin simplifies reference routing but requires careful decoupling to avoid noise coupling into ADC |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Enables ratiometric measurement when used with AVREFP; critical for precision sensor front-ends |
| P50/INTP0/TOOLRST | External interrupt 0 / debug reset | Hardware reset and wake-up source from deep sleep; supports fast recovery (<10 μs) from STOP mode |
| P51/INTP1/TOOLTxD | External interrupt 1 / debug TX | Enables asynchronous event capture and debug trace output without consuming UART resources |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Reduces active current to 66 μA/MHz and standby to 0.57 μA - extends battery life in portable industrial tools |
| On-chip RTC with calendar & alarm | 99-year calendar, auto-correction, and alarm interrupt - eliminates need for external real-time clock IC |
| Background Data Flash Operation (BGO) | Executes code from main flash while rewriting data flash - enables seamless firmware updates and data logging |
| Integrated voltage detector (LVD) | 14-level programmable reset/interrupt - protects against brown-out during power transitions in noisy factory environments |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide - accelerates PID computation and digital filter execution |
| Dual UART with LIN support | Full LIN 2.2 compliance including sync-break detection and checksum - simplifies automotive-grade communication integration |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Local operator interface for PLC-connected machinery with touch buttons, LED indicators, and status display. IC Role / Device Role / Timing Role: Main controller executing UI state machine, reading GPIO inputs, driving segment LCD via built-in controller, and communicating with host PLC over UART. Use Value: Integrated 26-channel ADC monitors panel supply rails and temperature; 128 KB flash stores localized language assets and firmware updates without external memory. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, low-power scheduling, wireless transmission prep, and secure data logging. Use Value: 0.57 μA STOP mode with RTC wake-up enables multi-year battery life; 8 KB data flash retains calibration offsets and historical min/max values across power cycles. |
| Programmable Logic Relay | Motor Control Starter |
|
Use Scenario: DIN-rail mounted relay module replacing electromechanical units with configurable logic, time delays, and fault reporting. IC Role / Device Role / Timing Role: Real-time sequencer evaluating ladder logic, driving opto-isolated outputs, and sampling current/voltage feedback via ADC. Use Value: 16× 16-bit timers provide precise pulse-width modulation and delay timing; 41 DMIPS ensures sub-millisecond scan cycle times for safety-critical logic. |
Use Scenario: Compact soft-start unit for 3-phase AC induction motors in pumps and compressors. IC Role / Device Role / Timing Role: Timing and protection controller generating gate drive signals, monitoring phase currents via shunt amplifiers, and enforcing thermal derating. Use Value: Hardware multiplier accelerates RMS current calculation; LVD with 14 thresholds enables adaptive undervoltage lockout based on line condition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MHDFB#X0 | Same core, memory, and peripherals; differs only in package: 80-pin LFQFP (0.5-mm pitch) vs. LQFP (0.65-mm pitch) | Requires PCB redesign due to finer pitch and different land pattern; better suited for high-density layouts | Select when board space is constrained and assembly process supports 0.5-mm pitch |
| R5F100LHDFA#X0 | 64-pin LQFP variant with identical 128 KB flash, 12 KB RAM, and 8 KB data flash; fewer GPIOs (52 vs. 64) and reduced peripheral count (e.g., 2× UART vs. 4×) | Targeted at cost-optimized designs where I/O count and interface concurrency are lower | Select when full 80-pin I/O is unnecessary and BOM cost reduction is prioritized over future expansion headroom |
Compared with R5F100MHDFB#X0, the R5F100MHDFA#X0 offers easier hand-soldering and rework compatibility due to its 0.65-mm pitch; compared with R5F100LHDFA#X0, it provides 16 additional GPIOs and two extra UART channels-critical for systems integrating both Modbus RTU and local debug interfaces simultaneously.
Availability
R5F100MHDFA#X0 is available at Aetrix Electronics and suitable for industrial control panels, smart sensor nodes, and programmable logic relays requiring stable component supply, long-term lifecycle assurance, and industrial-temperature grade reliability.
Supply support for R5F100MHDFA#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, and power solutions for industrial, automotive, and IoT markets.
The RL78/G13 product line delivers true low-power, high-integration MCUs optimized for cost-sensitive industrial equipment, home appliances, and sensor-edge devices requiring robust analog peripherals and extended battery life.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100MHDFA#X0?
The R5F100MHDFA#X0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. This speed is validated across the full −40°C to +85°C industrial temperature range and supports deterministic real-time execution for control algorithms and communication stacks.
Does the R5F100MHDFA#X0 support in-application programming (IAP) of its flash memory?
Yes, the R5F100MHDFA#X0 supports self-programming of both code and data flash memory. It includes boot swap functionality and flash shield window protection, enabling secure firmware updates and field upgrades without external programmers. The flash library reserves specific RAM regions (e.g., FAF00H for this variant) for safe erase/write operations.
How many analog input channels does the R5F100MHDFA#X0 support, and what is the ADC resolution?
The R5F100MHDFA#X0 features a 10-bit successive-approximation ADC with up to 26 analog input channels. It includes internal reference voltage (1.45 V) and a calibrated temperature sensor, supporting ratiometric measurements and direct thermal monitoring without external components.
What low-power modes are available on the R5F100MHDFA#X0, and what is the lowest achievable current draw?
The R5F100MHDFA#X0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA at 25°C - verified across the full industrial temperature range. Wake-up latency from STOP is under 10 μs, enabling rapid response to external events.
Is the R5F100MHDFA#X0 pin-compatible with other RL78/G13 variants such as the R5F100MHDFB#X0?
No, the R5F100MHDFA#X0 (80-pin LQFP, 0.65-mm pitch) is not pin-compatible with the R5F100MHDFB#X0 (80-pin LFQFP, 0.5-mm pitch). While functionally identical, the differing pitch and land pattern require separate PCB layouts. Both share identical register maps, memory map, and peripheral configuration.
R5F100MHDFA#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:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K 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:
R5F100MHDFA#X0 FAQ
1.How can I place an order for R5F100MHDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100MHDFA#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 R5F100MHDFA#X0 reliable?
The price and inventory of R5F100MHDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100MHDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100MHDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100MHDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100MHDFA#X0?
R5F100MHDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100MHDFA#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 R5F100MHDFA#X0?
For technical support, including R5F100MHDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100MHDFA#X0 requirements.
6.How does Aetrix verify that R5F100MHDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100MHDFA#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 R5F100MHDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100MHDFA#X0?
All R5F100MHDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100MHDFA#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 R5F100MHDFA#X0 part is unused and in its original packaging.
Return procedure for R5F100MHDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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