Renesas R5F101FFAFP#10
- Part No.:
- R5F101FFAFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FFAFP#10.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,280
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Product details
Overview
R5F101FFAFP#10 from Renesas is a 44-pin LQFP, 32-bit RL78/G13 microcontroller with 96 KB flash, 4 KB data flash, 4 KB RAM, 16 MHz max CPU frequency, and integrated 10-bit ADC (12-channel), UART, I²C, and RTC - deployed in battery-powered industrial sensors and low-power HMI control units.
For engineers reviewing the R5F101FFAFP#10 datasheet, R5F101FFAFP#10 pinout, R5F101FFAFP#10 application, or R5F101FFAFP#10 equivalent, key selection criteria include ultra-low power operation (0.57 μA in STOP mode), 1.6–5.5 V supply range, -40°C to +85°C industrial temperature grade, and on-chip debug support for rapid firmware validation.
Technical Context
The R5F101FFAFP#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and features a 1 MB address space with four register banks of eight 8-bit registers each.
It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), hardware DMA controller (4 channels), 16-bit timer array (12 channels), real-time clock with calendar/alarm, and voltage detector with 14-level LVD interrupt/reset capability - all optimized for deterministic real-time control in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 32-bit CISC with 3-stage pipeline; enables efficient code density and deterministic timing for real-time tasks. |
| Max Operating Frequency | 16 MHz (confirmed for R5F101FFAFP#10 per memory/temperature grade); delivers 41 DMIPS at 32 MHz but limited to 16 MHz for this variant. |
| Flash Memory | 96 KB code flash (1 KB block size); supports self-programming with boot swap and flash shield window security. |
| Data Flash | 4 KB background operation (BGO) capable; rated for 1,000,000 write cycles at VDD = 1.8–5.5 V. |
| RAM | 4 KB on-chip SRAM; includes dedicated areas reserved for flash library operation (start address FEF00H). |
| ADC | 10-bit resolution, 12 analog input channels, internal 1.45 V reference and temperature sensor (HS mode only). |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE; enables sub-μA system sleep with RTC/LVD active. |
Pinout & Package
44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, surface-mount package with exposed thermal pad (PLQP0044GC-A). Pin 1 marked by dot; standard JEDEC outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports 1.6–5.5 V operation. |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P43 | General-purpose I/O ports | 41 total GPIO pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V level shifting. |
| P10/SCK00/SCL00 | Serial clock I/O | Shared SPI clock (SCK00) and I²C clock (SCL00); enables dual-protocol peripheral interfacing on single pin. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Multi-function serial data pin | Combines SPI input, UART receive, debug RX, and I²C data - simplifies board routing but requires mode configuration. |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for robust power-on initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA typical current draw with RTC and LVD active - extends battery life in always-on sensing nodes. |
| On-chip debug interface | Fully integrated with E1/E20 emulators; eliminates need for external debug headers and reduces BOM cost. |
| Hardware DMA controller | 4-channel DMA with 2-clock transfer latency between SFR and RAM - offloads CPU during high-speed peripheral transfers. |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and clock correction; operates independently in STOP mode using 32.768 kHz crystal. |
| Self-programmable flash | Supports in-application firmware updates via boot swap and flash shield window - enables secure field upgrades without external programmer. |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry and local display. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake scheduling, UART-to-LoRaWAN bridge, and low-power state transitions. Use Value: 0.57 μA STOP mode extends 2xAA battery life beyond 5 years; integrated 10-bit ADC eliminates external signal conditioning ICs. |
Use Scenario: Residential HVAC control unit with touch UI, ambient sensing, and cloud connectivity. IC Role / Device Role / Timing Role: Central MCU handling capacitive touch decoding, PWM fan control, I²C sensor hub, and secure OTA update engine. Use Value: 41 DMIPS performance at 16 MHz ensures responsive UI rendering; 96 KB flash accommodates dual-bank firmware for fail-safe updates. |
| Energy Metering Interface | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: DIN-rail mounted electricity meter add-on module for tariff switching and event logging. IC Role / Device Role / Timing Role: Dedicated communication co-processor interfacing with metrology IC via SPI and relaying data over RS-485. Use Value: Hardware UART with LIN support enables direct integration into legacy utility networks; 4 KB data flash stores 30 days of tamper logs. |
Use Scenario: Compact remote I/O expansion unit for industrial automation with digital input/output and diagnostics. IC Role / Device Role / Timing Role: Real-time I/O manager executing cyclic scan logic, watchdog supervision, and CAN bus gateway functions. Use Value: 12-channel 10-bit ADC and 41 GPIO provide flexible analog/digital signal acquisition; HALT mode reduces heat generation in enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FFAFP#10 | Includes 8 KB data flash (vs. 4 KB); same 96 KB code flash, 8 KB RAM, and identical pinout/package. | Preferred where frequent non-volatile parameter storage or firmware patching is required. | Select when extended data retention and background rewriting are critical; otherwise R5F101FFAFP#10 offers lower cost and sufficient data logging capacity. |
| STM32L053R8T6 | ARM Cortex-M0+, 64 KB flash, 8 KB RAM, 12-bit ADC (16 ch), but no integrated RTC calendar or LIN support. | Suitable for simpler sensor nodes without calendar-aware scheduling or automotive protocol needs. | Choose if ARM ecosystem toolchain preference outweighs RL78's ultra-low STOP current and built-in LIN/RTC; verify layout compatibility (48-pin LQFP vs. 64-pin). |
Compared with R5F100FFAFP#10, the R5F101FFAFP#10 trades data flash capacity for cost reduction while retaining identical real-time performance and ultra-low power behavior; versus STM32L053R8T6, it delivers superior RTC functionality and lower standby current but requires Renesas-specific development tools.
Availability
R5F101FFAFP#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and energy metering interfaces requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F101FFAFP#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 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - emphasizing energy efficiency, integrated peripherals, and rapid time-to-market for industrial controls and consumer electronics.
FAQ
What is the maximum operating frequency of the R5F101FFAFP#10?
The R5F101FFAFP#10 is rated for up to 16 MHz operation under industrial temperature conditions (-40°C to +85°C). While the RL78/G13 core supports 32 MHz in higher-grade variants, this specific part (indicated by 'F' flash size and 'D' temperature grade) is configured for 16 MHz maximum, delivering 25.6 DMIPS at that speed. The on-chip oscillator accuracy remains ±1.0% across the full 1.6–5.5 V supply range.
Does the R5F101FFAFP#10 include data flash memory?
Yes, the R5F101FFAFP#10 integrates 4 KB of data flash memory with background operation (BGO) capability, enabling concurrent code execution and data flash rewriting. It supports 1,000,000 write cycles at VDD = 1.8–5.5 V and uses RAM starting at address FEF00H for flash library operations. This data flash is distinct from the 96 KB code flash and is optimized for parameter storage and firmware updates.
What package type and pin count does the R5F101FFAFP#10 use?
The R5F101FFAFP#10 uses a 44-pin plastic LQFP package (10 × 10 mm, 0.8-mm pitch), identified by Renesas code PLQP0044GC-A. The '#10' suffix indicates tray packaging. This package provides 41 general-purpose I/O pins plus power, ground, reset, and clock terminals - compatible with standard reflow soldering processes and widely supported by PCB design libraries.
Is the R5F101FFAFP#10 suitable for automotive applications?
No, the R5F101FFAFP#10 is qualified for industrial applications only (temperature range -40°C to +85°C, 'D' grade). It lacks AEC-Q100 qualification and does not meet automotive reliability or qualification requirements. For automotive use, Renesas offers RL78/F1x or RL78/H1x families with AEC-Q100 Grade 2 or 3 certification - the R5F101FFAFP#10 should be restricted to industrial, commercial, or consumer equipment.
What debug interface does the R5F101FFAFP#10 support?
The R5F101FFAFP#10 supports Renesas' on-chip debug interface compatible with E1 and E20 emulators via the TOOLRxD/TOOLTxD pins (P11/P12). It enables full JTAG-like debugging - including breakpoints, watchpoints, memory inspection, and flash programming - without requiring external debug probes beyond the standard emulator cable. No SWD or CMSIS-DAP support is provided.
R5F101FFAFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 31
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101FFAFP#10 FAQ
1.How can I place an order for R5F101FFAFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FFAFP#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 R5F101FFAFP#10 reliable?
The price and inventory of R5F101FFAFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FFAFP#10 is usually 5 days.
3.What payment methods are accepted for R5F101FFAFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FFAFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FFAFP#10?
R5F101FFAFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FFAFP#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 R5F101FFAFP#10?
For technical support, including R5F101FFAFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FFAFP#10 requirements.
6.How does Aetrix verify that R5F101FFAFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F101FFAFP#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 R5F101FFAFP#10 meets industry standards.
7.What is the process for return or replacement of R5F101FFAFP#10?
All R5F101FFAFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FFAFP#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 R5F101FFAFP#10 part is unused and in its original packaging.
Return procedure for R5F101FFAFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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