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Renesas R5F101MHAFB#50
- Part No.:
- R5F101MHAFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MHAFB#50.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F101MHAFB#50 from Renesas is an RL78/G13 80-pin, 192 KB flash, 8 KB data flash, 16 KB RAM ultra-low-power 16-bit MCU with integrated RTC, 10-bit ADC (26 channels), and multiple serial interfaces (UART, I²C, CSI). It operates from 1.6 V to 5.5 V, achieves 41 DMIPS at 32 MHz, and supports HALT/STOP/SNOOZE modes for battery-powered industrial sensors and metering systems.
For engineers reviewing the R5F101MHAFB#50 datasheet, R5F101MHAFB#50 pinout, R5F101MHAFB#50 application, or R5F101MHAFB#50 equivalent, key selection criteria include its LFQFP-80 (12 × 12 mm, 0.5-mm pitch) package, -40°C to +105°C industrial temperature grade (G), absence of on-chip data flash (indicated by "101" in part number), and real-time clock with calendar/alarm functionality.
Technical Context
The R5F101MHAFB#50 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting 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, 16-bit timers (12 channels), and a calendar-capable real-time clock with clock correction.
Its peripheral set includes a 10-bit A/D converter with up to 26 analog inputs and internal 1.45 V reference, three I²C/Simplified I²C channels, four UART/LIN channels, and two CSI (SPI-compatible) channels - all configurable without external components for compact embedded control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 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 loops |
| Flash Memory | 192 KB code flash - sufficient for complex firmware with bootloader and OTA update partitioning |
| Data Flash | None - "101" suffix confirms no on-chip data flash; external EEPROM or FRAM required for nonvolatile parameter storage |
| RAM Size | 16 KB on-chip RAM - supports multitasking RTOS stacks and sensor data buffering |
| ADC Resolution & Channels | 10-bit resolution, 26-channel SAR ADC - enables simultaneous monitoring of multiple analog sensors (e.g., temperature, voltage, current) |
| Operating Voltage Range | 1.6 V to 5.5 V - allows direct interface with Li-ion, alkaline, or 3.3/5 V system rails without level-shifting |
| Temperature Grade | -40°C to +105°C (G-grade) - qualified for under-hood automotive modules and industrial motor drives |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared function pin enabling dual-protocol serial communication with single-pull-up configuration |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function input supporting debug (TOOLRxD), sensor interface (SPI), and bus communication (I²C/UART) |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as primary ADC channel or precision reference input for ratiometric sensor measurements |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Enables differential ADC measurements or ground-referenced analog sensing |
| P30/INTP0/RTCCLK | Interrupt Input / RTC Clock Input | Accepts external 32.768 kHz crystal or oscillator signal to drive calendar-mode RTC with alarm and correction |
| VDD, VSS | Power Supply / Ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation across full voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA typical - enables multi-year battery life in wireless sensor nodes with periodic wake-up via RTC alarm |
| On-chip high-accuracy oscillator | +/-1.0% over -20°C to +85°C - eliminates external crystal for cost-sensitive applications while maintaining UART timing integrity |
| Background data flash programming | Not applicable - R5F101MHAFB#50 lacks data flash; feature unavailable per part numbering convention |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide - accelerates PID control, filtering, and energy calculation algorithms |
| DMA controller (4 channels) | 2-clock transfers between SFR and RAM - offloads CPU during ADC-to-memory or UART-to-buffer operations |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - provides timestamping and scheduled wake-up without external RTC IC |
Applications
| Smart Energy Metering | Industrial Motor Control |
|---|---|
|
Use Scenario: Residential and commercial electricity meters requiring time-of-use billing, tamper detection, and secure firmware updates. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing LCD/LED displays, and handling IR/RS-485 communication. Use Value: Integrated 10-bit ADC with 26 channels supports simultaneous voltage/current/neutral sensing; RTC calendar enables accurate tariff switching without external timekeeping. |
Use Scenario: Compact BLDC motor drives for HVAC fans, pumps, and compressors operating in harsh thermal environments. IC Role / Device Role / Timing Role: Real-time motion controller interfacing with Hall sensors, driving gate drivers, and executing FOC algorithms. Use Value: 41 DMIPS performance at 32 MHz ensures sub-microsecond PWM timing resolution; -40°C to +105°C rating guarantees reliability in enclosed motor enclosures. |
| Wireless Sensor Node | Automotive Body Control Module |
|
Use Scenario: Battery-powered environmental monitors (temperature/humidity/CO₂) transmitting data via BLE or Sub-GHz RF transceivers. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor acquisition, data preprocessing, and RF interface timing. Use Value: 0.57 μA STOP mode with RTC alarm enables years of operation on coin-cell batteries; multi-protocol serial interfaces simplify RF IC integration. |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN communication to central ECU. IC Role / Device Role / Timing Role: LIN slave node processor handling switch inputs, motor driver control, and diagnostic reporting. Use Value: Built-in LIN support in UART peripherals reduces BOM count; G-grade temperature qualification meets automotive under-dash requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MHAFB#50 | Includes 8 KB data flash; identical pinout, package, and peripheral set | Supports in-field parameter storage without external memory; suitable for designs requiring frequent calibration or logging | Select when nonvolatile data retention is required; otherwise R5F101MHAFB#50 reduces cost and simplifies layout |
| RL78/G14 R5F104MJAFB#50 | Enhanced RL78/G14 core with 256 KB flash, 32 KB RAM, and additional 12-bit ADC channels | Targets higher-complexity applications like multi-sensor fusion or advanced motor control with larger code footprint | Choose for future-proofing or when scaling beyond 192 KB flash; not drop-in compatible due to different register mapping |
Compared with R5F100MHAFB#50, this part trades data flash for lower unit cost and identical low-power performance, while RL78/G14 offers expanded memory and peripherals at the expense of increased power consumption and software migration effort.
Availability
R5F101MHAFB#50 is available at Aetrix Electronics and suitable for smart energy metering, industrial motor control, wireless sensor nodes, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F101MHAFB#50 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 - balancing performance, integration, and energy efficiency for battery-operated and thermally constrained systems.
FAQ
What does the "101" in R5F101MHAFB#50 indicate?
The "101" in R5F101MHAFB#50 explicitly denotes absence of on-chip data flash memory, distinguishing it from "100"-suffixed variants like R5F100MHAFB#50 which include 8 KB data flash. This affects firmware design strategies for parameter storage, requiring external nonvolatile memory if persistent settings are needed. R5F101MHAFB#50 retains full code flash (192 KB), RAM (16 KB), and peripheral functionality.
Does R5F101MHAFB#50 support hardware debugging?
Yes, R5F101MHAFB#50 includes an on-chip debug interface compliant with Renesas E2 emulator protocol, enabling full JTAG/SW-DP debugging, flash programming, and real-time trace. Pins P11 (TOOLRxD) and P12 (TOOLTxD) serve dedicated debug I/O functions, allowing in-circuit development without additional debug probes beyond standard E2 hardware.
Can R5F101MHAFB#50 operate reliably at 5.5 V?
Yes, R5F101MHAFB#50 is fully specified for operation from 1.6 V to 5.5 V across its entire industrial temperature range (-40°C to +105°C). At 5.5 V, all I/O pins tolerate 6 V (N-ch open drain), and internal regulators maintain stable core voltage - making it suitable for direct connection to unregulated 5 V rails in industrial PLC I/O modules.
How many UART channels does R5F101MHAFB#50 provide?
R5F101MHAFB#50 provides four UART channels, each supporting LIN-bus physical layer compliance. These are implemented as independent peripherals (UART0–UART3), with UART0 and UART1 offering additional CSI and I²C sharing capability. All channels support automatic baud rate detection and LIN wakeup functionality for automotive body control applications.
Is the RTC in R5F101MHAFB#50 battery-backed?
No, R5F101MHAFB#50 does not include a dedicated VBAT pin or internal battery backup circuitry for the RTC. The RTC remains functional only while VDD is powered; however, its ultra-low 0.57 μA STOP mode current minimizes drain during sleep, and the calendar function retains date/time across STOP mode exits when main power is maintained.
R5F101MHAFB#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -
- 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:
R5F101MHAFB#50 FAQ
1.How can I place an order for R5F101MHAFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MHAFB#50 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 R5F101MHAFB#50 reliable?
The price and inventory of R5F101MHAFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MHAFB#50 is usually 5 days.
3.What payment methods are accepted for R5F101MHAFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MHAFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MHAFB#50?
R5F101MHAFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MHAFB#50 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 R5F101MHAFB#50?
For technical support, including R5F101MHAFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MHAFB#50 requirements.
6.How does Aetrix verify that R5F101MHAFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F101MHAFB#50 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 R5F101MHAFB#50 meets industry standards.
7.What is the process for return or replacement of R5F101MHAFB#50?
All R5F101MHAFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MHAFB#50, 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 R5F101MHAFB#50 part is unused and in its original packaging.
Return procedure for R5F101MHAFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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