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Renesas R5F101MFAFA#10
- Part No.:
- R5F101MFAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MFAFA#10.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R5F101MFAFA#10 from Renesas is a 80-pin LQFP-0.65mm microcontroller in the RL78/G13 family, featuring 64 KB flash memory, 4 KB data flash, 4 KB RAM, and operation from 1.6 V to 5.5 V. It delivers 41 DMIPS at 32 MHz, supports ultra-low-power modes (0.57 μA RTC+LVD), and integrates 16-bit timers, 10-bit ADC (26 channels), UART, I²C, CSI, and real-time clock - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F101MFAFA#10 datasheet, R5F101MFAFA#10 pinout, R5F101MFAFA#10 application, or R5F101MFAFA#10 equivalent, key selection criteria include its no-data-flash configuration, -40°C to +85°C industrial temperature grade (D-grade), LQFP-80 0.65-mm pitch package, and compatibility with Renesas' RL78 toolchain and E2 studio for low-power embedded firmware development.
Technical Context
The R5F101MFAFA#10 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It uses on-chip high-accuracy ±1.0% oscillator (1–32 MHz selectable) and includes dedicated hardware blocks for DMA (4-channel), multiplier/divider/MAC, and background data flash rewriting (BGO).
Its peripheral set targets deterministic real-time control: 16× 16-bit timers (including interval timer and RTC with calendar/alarm), 10-bit ADC with internal reference (1.45 V) and temperature sensor, and serial interfaces supporting LIN via UART. Power management includes HALT/STOP/SNOOZE modes, on-chip POR, and 14-level LVD with interrupt/reset options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 CPU, CISC, 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 64 KB code flash, 1 KB block size, self-programming with boot swap |
| Data Flash | None - R5F101x series excludes on-chip data flash memory |
| RAM | 4 KB on-chip RAM, used by flash library starting at FEF00H |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V peripherals |
| Operating Temp | -40°C to +85°C (D-grade industrial), qualified per AEC-Q100 Class 2 not required |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE (fast wake-up) |
Pinout & Package
Package: 80-pin LQFP, 12 × 12 mm body, 0.65 mm pitch, exposed pad not present, RoHS-compliant, JEDEC MS-026 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports single-supply 1.6–5.5 V operation |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77, P80–P87 | General-purpose I/O ports | 80 total I/O pins; configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports different-potential interfacing |
| P11, P12, P13 | UART0 (RxD0/TxD0/TOOLRxD) | Hardware UART with LIN support; TOOLRxD enables on-chip debug communication without external adapter |
| P10, P11, P14, P15 | I²C0 (SCL00/SDA00) | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C master/slave; integrated slew-rate control |
| P20–P25 | ADC inputs (ANI0–ANI5) | 10-bit resolution, 26-channel analog input capability; internal 1.45 V reference and temperature sensor available |
| P30–P33 | RTC crystal connections (X1/X2) | Supports 32.768 kHz tuning-fork crystal; enables calendar, alarm, and clock correction functions |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active - extends battery life in energy-constrained edge devices |
| No data flash variant | Eliminates data flash overhead (area, cost, complexity); ideal for fixed-parameter firmware with infrequent updates |
| On-chip debug & self-programming | Full on-chip debug via TOOLRxD; flash shield window and boot swap enable secure field firmware updates |
| Hardware-accelerated math | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC units reduce firmware cycle count for control algorithms |
| Peripheral independence | BGO allows CPU to execute from flash while rewriting data flash - no runtime interruption for parameter storage |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/CO₂ sensor node transmitting data via UART-to-LoRaWAN gateway. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-triggered wake-up, UART communication, and low-power state transitions. Use Value: 0.57 μA STOP mode with RTC enables multi-year battery life; 10-bit ADC with internal reference eliminates external precision references. |
Use Scenario: Wall-mounted HVAC zone controller regulating fan speed, valve position, and ambient sensing using local PID loops. IC Role / Device Role / Timing Role: Real-time control unit executing 10 ms PID cycles, driving PWM outputs, and monitoring multiple analog/digital inputs. Use Value: 41 DMIPS at 32 MHz ensures deterministic loop timing; 16-bit timers with dead-time insertion support precise motor control. |
| Energy Meter Interface Module | Factory Automation I/O Terminal |
|
Use Scenario: DIN-rail mounted module aggregating pulse inputs from mechanical meters and reporting kWh via RS-485. IC Role / Device Role / Timing Role: Pulse counter and protocol handler interfacing with isolated RS-485 transceiver and non-volatile event logging. Use Value: N-ch open-drain I/O (6 V tolerant) directly interfaces with dry-contact meter pulses; UART with LIN framing simplifies legacy bus integration. |
Use Scenario: Modular remote I/O terminal collecting digital inputs (limit switches, safety relays) and driving 24 V DC outputs in PLC-controlled lines. IC Role / Device Role / Timing Role: Deterministic I/O manager with timestamped edge capture, watchdog supervision, and cyclic redundancy-checked CAN/LIN communication. Use Value: 14-level LVD detects brown-out before logic corruption; HALT mode enables sub-10 μs wake-up from external interrupt for safety-critical response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MFAFA#10 | Includes 4 KB data flash; identical pinout, package, and peripheral set | Required when firmware must store calibration data or user settings in on-chip nonvolatile memory | Select if field-updatable parameters or EEPROM emulation are needed; otherwise R5F101MFAFA#10 reduces cost and flash wear. |
| R5F101MGAFB#10 | Same core and memory, but 80-pin LFQFP (0.5 mm pitch); no LQFP-0.65mm pin compatibility | Suitable for space-constrained PCBs where finer pitch is acceptable and rework capability is available | Choose only when board layout supports 0.5 mm pitch; requires full footprint redesign versus R5F101MFAFA#10's LQFP-0.65mm. |
Compared with R5F100MFAFA#10, the R5F101MFAFA#10 saves die area and cost by omitting data flash - advantageous for fixed-function firmware - while R5F101MGAFB#10 trades package compatibility for higher I/O density in compact designs.
Availability
R5F101MFAFA#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and factory automation I/O terminals requiring stable component supply across extended production lifecycles.
Supply support for R5F101MFAFA#10 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 performance for general-purpose embedded control, targeting cost-sensitive industrial and consumer applications requiring robustness, long battery life, and toolchain maturity.
FAQ
What is the flash memory configuration of the R5F101MFAFA#10?
The R5F101MFAFA#10 contains 64 KB of code flash memory with 1 KB erase blocks and supports self-programming with boot swap and flash shield window functions. It does not include on-chip data flash memory - this distinguishes it from the R5F100x series and aligns with fixed-parameter firmware use cases where EEPROM emulation is unnecessary.
Does the R5F101MFAFA#10 support real-time clock functionality?
Yes, the R5F101MFAFA#10 integrates a full-featured real-time clock (RTC) with calendar support up to 99 years, alarm interrupt, and clock correction function. It operates independently in STOP mode with only 0.57 μA current draw when paired with an external 32.768 kHz crystal on pins P30/P33, enabling time-stamped sensor logging and scheduled wake-up.
What is the operating temperature range certified for the R5F101MFAFA#10?
The R5F101MFAFA#10 is rated for industrial operation from -40°C to +85°C (D-grade), as indicated by the "D" in its part number suffix. This qualification covers full electrical performance across the range, including all low-power modes, ADC accuracy, and oscillator stability - making it suitable for uncontrolled environments like factory floors and outdoor enclosures.
Can the R5F101MFAFA#10 be debugged without external hardware?
Yes, the R5F101MFAFA#10 supports on-chip debugging via the TOOLRxD pin (P11), eliminating the need for a separate debug probe during early firmware bring-up. This UART-based debug channel works alongside standard SWD/JTAG interfaces and is fully supported by Renesas E2 studio and CS+ IDE for breakpoints, register inspection, and flash programming.
How many analog input channels does the R5F101MFAFA#10 support?
The R5F101MFAFA#10 features a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25), accessible through dedicated pins including P20–P25. It includes an internal 1.45 V reference voltage and an integrated temperature sensor - both usable only in HS (high-speed main) mode - enabling accurate sensor measurements without external components.
R5F101MFAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
R5F101MFAFA#10 FAQ
1.How can I place an order for R5F101MFAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MFAFA#10 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 R5F101MFAFA#10 reliable?
The price and inventory of R5F101MFAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MFAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F101MFAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MFAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MFAFA#10?
R5F101MFAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MFAFA#10 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 R5F101MFAFA#10?
For technical support, including R5F101MFAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MFAFA#10 requirements.
6.How does Aetrix verify that R5F101MFAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F101MFAFA#10 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 R5F101MFAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F101MFAFA#10?
All R5F101MFAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MFAFA#10, 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 R5F101MFAFA#10 part is unused and in its original packaging.
Return procedure for R5F101MFAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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