Renesas R5F101LDAFB#10
- Part No.:
- R5F101LDAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LDAFB#10.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,280
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Product details
Overview
R5F101LDAFB#10 from Renesas is a 64-pin LFQFP-packaged RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, and 12 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock, and UART/I²C/CSI interfaces - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F101LDAFB#10 datasheet, R5F101LDAFB#10 pinout, R5F101LDAFB#10 application, or R5F101LDAFB#10 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for background data flash rewriting via BGO.
Technical Context
The R5F101LDAFB#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 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, calendar-based real-time clock with alarm and correction, and watchdog timer powered by dedicated low-speed oscillator.
Its peripheral set includes up to 16× 16-bit timers, 3–10× I²C/Simplified I²C channels, 2–4× UART/LIN-capable serial interfaces, and 2–8× CSI (SPI-compatible) channels - all configurable under single-supply operation with programmable N-ch open-drain I/O and 1.8/2.5/3.0 V interface compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS), with selectable high-speed on-chip oscillator (±1.0% accuracy) |
| Memory Configuration | 128 KB code flash, 0 KB data flash (R5F101x series), 12 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Operating Temperature | -40°C to +85°C (industrial grade, D-suffix) |
| Supply Voltage Range | 1.6 V to 5.5 V single supply, enabling direct Li-ion or 3.3 V/5 V system integration |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.50-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation across full voltage range |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pins supporting SPI master/slave, UART receive, debug interface, and I²C data |
| P20–P22 | ANI0–ANI2/AVREFP/AVREFM | Analog inputs with dedicated reference voltage pins for precision ADC measurements |
| P147 | ANI18 | Additional analog input channel, extending ADC coverage without external mux |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC or higher-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD active - enables >10-year battery life in metering applications |
| Background Data Flash Operation | BGO allows concurrent program execution and data flash rewrite - eliminates firmware stalls during field updates |
| On-chip Debug Support | Fully integrated on-chip debug interface with flash shield window and boot swap function for secure firmware updates |
| Flexible Clock System | High-accuracy on-chip oscillator (±1.0%) plus external crystal support - reduces BOM cost and board space |
| Multi-Voltage I/O Interface | N-ch open-drain I/O with 6 V tolerance and selectable pull-up - enables direct interfacing with 1.8 V/2.5 V/3.3 V peripherals |
Applications
| Smart Energy Metering | Industrial Sensor Hub |
|---|---|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, tamper detection, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and sub-GHz RF communication timing. Use Value: Ultra-low STOP-mode current extends battery life beyond 10 years; integrated RTC eliminates external timekeeping IC. |
Use Scenario: Multi-sensor node aggregating temperature, humidity, pressure, and vibration data for predictive maintenance. IC Role / Device Role / Timing Role: Central acquisition engine synchronizing 26-channel ADC reads, timestamping events via calendar RTC, and buffering data before transmission. Use Value: 12 KB RAM supports large sensor buffers; BGO enables seamless firmware updates without interrupting data logging. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Board |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time I/O scheduler coordinating 16× 16-bit timer outputs for PWM-driven actuators and UART-based protocol stack timing. Use Value: 16× 16-bit timers provide precise PWM generation; UART with LIN support simplifies automotive-grade diagnostics integration. |
Use Scenario: Washing machine main control board managing motor drive, water valve sequencing, and user interface. IC Role / Device Role / Timing Role: System-on-chip orchestrating motor commutation timing, ADC-based load sensing, buzzer feedback, and key interrupt handling. Use Value: On-chip buzzer output controller and key interrupt reduce external components; 1.6 V min supply enables brown-out resilience during line dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LDFAFB#10 | Same package and memory (128 KB flash, 12 KB RAM), but includes 8 KB data flash (R5F100x series) | Required where field-upgradable parameter storage (e.g., calibration tables) is needed | Select R5F101LDFAFB#10 if persistent non-volatile parameter storage beyond code flash is mandatory |
| R5F100LDAFB#10 | Identical pinout and peripherals, but rated for -40°C to +105°C (G-suffix) and includes 8 KB data flash | Suitable for under-hood automotive or high-temp industrial environments requiring extended thermal margin | Choose R5F100LDAFB#10 only when +105°C operation or embedded data flash is required - otherwise R5F101LDAFB#10 offers cost advantage |
Compared with R5F101LDFAFB#10 and R5F100LDAFB#10, the R5F101LDAFB#10 provides identical compute performance and I/O capability at lower cost and reduced power in standard industrial ambient conditions, while omitting data flash to simplify firmware update architecture and reduce die size.
Availability
R5F101LDAFB#10 is available at Aetrix Electronics and suitable for industrial sensor hubs, smart energy metering, and home appliance control boards requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F101LDAFB#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 industrial, automotive, and enterprise applications.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded systems - balancing performance, peripheral richness, and energy efficiency for battery-operated and mains-powered industrial controls.
FAQ
What is the flash memory configuration of the R5F101LDAFB#10?
The R5F101LDAFB#10 contains 128 KB of on-chip code flash memory and no dedicated data flash memory - consistent with the R5F101x series designation indicating data flash omission. Its 12 KB RAM serves as primary working memory, and self-programming is supported via boot swap and flash shield window functions within the code flash array.
Does the R5F101LDAFB#10 support real-time clock functionality?
Yes, the R5F101LDAFB#10 integrates a full-featured real-time clock (RTC) with calendar support (99-year range), alarm interrupt, and clock correction function. It operates independently in STOP mode with only 0.57 μA consumption when paired with the on-chip LVD, making it ideal for time-stamped logging and scheduled wake-up tasks.
What package type and pin count does the R5F101LDAFB#10 use?
The R5F101LDAFB#10 uses a 64-pin LFQFP package with 0.50-mm pitch (RENESAS code PLQP0064KF-A), measuring 10 mm × 10 mm. The "FB" suffix in the part number explicitly denotes this LFQFP-0.5mm variant, distinguishing it from LQFP-0.65mm (FA) and VFBGA (BG) variants in the same pin-count group.
How does the R5F101LDAFB#10 achieve ultra-low power consumption?
The R5F101LDAFB#10 achieves ultra-low power via multiple hardware-optimized states: HALT mode (66 μA/MHz active current), STOP mode (0.57 μA with RTC + LVD), and SNOOZE mode (selective peripheral wake-up). Its RL78 core dynamically scales instruction speed and voltage domains, and the on-chip POR/LVD eliminates need for external supervisors.
Is the R5F101LDAFB#10 pin-compatible with other RL78/G13 64-pin variants?
Yes - all RL78/G13 64-pin variants (including R5F100x and R5F101x families in LFQFP-0.5mm package) share identical pinouts and electrical characteristics. The R5F101LDAFB#10 is pin-compatible with R5F100LDAFB#10 and R5F101LDFAFB#10, differing only in data flash presence and temperature grade.
R5F101LDAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101LDAFB#10 FAQ
1.How can I place an order for R5F101LDAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LDAFB#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 R5F101LDAFB#10 reliable?
The price and inventory of R5F101LDAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LDAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F101LDAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LDAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LDAFB#10?
R5F101LDAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LDAFB#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 R5F101LDAFB#10?
For technical support, including R5F101LDAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LDAFB#10 requirements.
6.How does Aetrix verify that R5F101LDAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F101LDAFB#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 R5F101LDAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F101LDAFB#10?
All R5F101LDAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LDAFB#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 R5F101LDAFB#10 part is unused and in its original packaging.
Return procedure for R5F101LDAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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