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Renesas R5F101LDAFA#X0
- Part No.:
- R5F101LDAFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LDAFA#X0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,157
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Product details
Overview
R5F101LDAFA#X0 from Renesas is a 64-pin LQFP-0.65mm, industrial-grade (–40°C to +85°C) RL78/G13 16-bit MCU with 128 KB flash, 8 KB RAM, no data flash, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers (12 channels), 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in battery-powered industrial sensors and motor control subsystems.
For engineers reviewing the R5F101LDAFA#X0 datasheet, R5F101LDAFA#X0 pinout, R5F101LDAFA#X0 application, or R5F101LDAFA#X0 equivalent, key selection criteria include its 64-pin LQFP package, absence of on-chip data flash, industrial temperature rating, 128 KB code flash capacity, and support for SNOOZE mode operation with background ADC sampling.
Technical Context
The R5F101LDAFA#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It operates across 1.6–5.5 V supply and features dual-clock domains: high-speed main system clock (up to 32 MHz) and independent low-speed subsystem clock for RTC/LVD.
Its peripheral set includes 12 × 16-bit timers (with input capture/compare), one 12-bit interval timer, calendar-based RTC with alarm/correction, and 10-bit A/D converter with internal 1.45 V reference and temperature sensor - all accessible without data flash dependency, enabling deterministic firmware updates via boot swap.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic interrupt latency and compact code density for resource-constrained embedded control. |
| Max Operating Frequency | 32 MHz (high-speed on-chip oscillator ±1.0% accuracy); supports real-time motor commutation and fast serial protocol handling. |
| Flash Memory | 128 KB code flash (1 KB block size); sufficient for complex control algorithms with bootloader and application partitioning. |
| RAM | 8 KB on-chip RAM; accommodates stack, heap, and real-time data buffers for multi-channel sensor fusion. |
| ADC Resolution & Channels | 10-bit resolution, 26 analog inputs; enables simultaneous monitoring of voltage, current, temperature, and position feedback signals. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE; allows continuous RTC + LVD supervision while minimizing battery drain in sleep states. |
| Operating Temperature | –40°C to +85°C (industrial grade D suffix); validated for deployment in factory automation and outdoor metering environments. |
Pinout & Package
Package: 64-pin LQFP, 12 mm × 12 mm, 0.65 mm pitch (JEDEC MS-026), lead-free, RoHS compliant.
| 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 single 1.6–5.5 V supply operation. |
| P00–P07 | Port 0 general-purpose I/O | Bi-directional with N-ch open-drain option and on-chip pull-up; compatible with 1.8/2.5/3.3 V logic interfaces. |
| P10–P17 | Port 1 with serial interface functions | Configurable as SCK00/SCL00, SI00/RxD0, SO00/TxD0 - enables hardware SPI/I²C/UART without GPIO bit-banging. |
| P20–P27 | Analog input multiplexed pins | Support ANI0–ANI7 with AVREFP/AVREFM references; enables precision measurement using internal 1.45 V reference. |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion; debounced internally for robust startup sequencing. |
| CLKP/CLKM | External crystal oscillator terminals | Supports 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz for precise timing calibration. |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming with boot swap | Enables field firmware updates without external programmer; boot loader resides in protected memory region. |
| Background operation (BGO) | Not applicable - R5F101LDAFA#X0 lacks data flash; BGO only relevant for parts with data flash (R5F100x series). |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction; eliminates need for external RTC IC in time-stamped logging applications. |
| On-chip voltage detector (LVD) | 14-level programmable threshold (1.6–4.5 V); triggers interrupt or reset to prevent brown-out corruption during power dips. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations; accelerates PID control and sensor linearization math. |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/CO₂ sensor node with LoRaWAN backhaul. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, data preprocessing, low-power scheduling, and radio interface management. Use Value: 0.57 μA STOP mode extends 2xAA battery life to >5 years; 10-bit ADC with internal reference ensures stable calibration across temperature range. |
Use Scenario: Wall-mounted HVAC zone controller managing fan speed, damper actuation, and occupancy sensing. IC Role / Device Role / Timing Role: Real-time coordinator of PWM fan drivers, relay outputs, capacitive touch UI, and RS-485 communication to building BMS. Use Value: 12 × 16-bit timers enable concurrent PWM generation and input capture for RPM feedback; SNOOZE mode allows ADC sampling during low-power sleep. |
| Programmable Logic Relay | Motor Drive Monitor |
|
Use Scenario: DIN-rail mounted PLC module with 8 digital inputs, 6 relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Deterministic state-machine executor with cycle-time guarantees, watchdog supervision, and non-volatile parameter storage via flash emulation. Use Value: HALT mode achieves 66 μA/MHz efficiency during idle cycles; on-chip BCD correction simplifies time-based sequencing logic. |
Use Scenario: Inverter-integrated motor monitor measuring phase currents, DC bus voltage, and heatsink temperature. IC Role / Device Role / Timing Role: Safety-critical analog front-end processor feeding fault detection logic and communicating status via isolated UART to main MCU. Use Value: 26-channel ADC supports simultaneous sampling of 3-phase current shunts + auxiliary sensors; LVD interrupt triggers immediate shutdown at 2.7 V threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LDAFA#X0 | Same package and pinout; includes 4 KB data flash and flash shield window function. | Required where field firmware updates with data logging or secure parameter storage are needed. | Select when data flash persistence and self-programming security features are mandatory. |
| RL78/G14 R5F104LEAFA#X0 | Enhanced RL78/G14 core; adds DMA, more timers (16×16-bit), larger RAM (16 KB), and higher max frequency (48 MHz). | Suitable for applications needing higher throughput (e.g., multi-axis motion control or USB device interface). | Choose for increased peripheral bandwidth and memory headroom; requires PCB layout review due to identical 64-pin LQFP footprint but different power sequencing. |
Compared with R5F100LDAFA#X0, the R5F101LDAFA#X0 trades data flash for reduced cost and simplified flash management, while retaining identical performance, peripherals, and industrial temperature rating; versus RL78/G14, it offers lower power and proven qualification for long-lifecycle industrial deployments without requiring new toolchain validation.
Availability
R5F101LDAFA#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable logic relays requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for R5F101LDAFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency without compromising reliability.
FAQ
What is the flash memory configuration of the R5F101LDAFA#X0?
The R5F101LDAFA#X0 contains 128 KB of on-chip code flash memory organized in 1 KB blocks, with no data flash memory integrated. This configuration supports robust firmware storage and boot swap functionality, but excludes dedicated data retention capability - making it ideal for applications where parameters are stored externally or emulated in code flash.
Does the R5F101LDAFA#X0 support real-time clock (RTC) with calendar functionality?
Yes, the R5F101LDAFA#X0 includes a full-featured RTC with 99-year calendar, alarm interrupt, and clock correction function. It operates independently in STOP mode using the 32.768 kHz subsystem clock, enabling accurate timekeeping and timestamped event logging without waking the CPU core.
What low-power modes are available on the R5F101LDAFA#X0, and what are their typical current draws?
The R5F101LDAFA#X0 supports HALT (66 μA/MHz), STOP (0.57 μA), and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified across –40°C to +85°C - making it suitable for multi-year battery operation in remote monitoring devices.
Is the R5F101LDAFA#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F101LDAFA#X0 shares identical 64-pin LQFP pinout and electrical characteristics with all other RL78/G13 devices in the PLQP0064JA-A package (e.g., R5F100LDAFA#X0, R5F101LCAFA#X0), enabling drop-in replacement within the same memory and feature family - provided software accounts for data flash presence/absence.
What development tools are supported for the R5F101LDAFA#X0?
The R5F101LDAFA#X0 is fully supported by Renesas e² studio IDE, CS+ (formerly CubeSuite+), and the E2 emulator Lite. It also works with the RL78/G13 Target Board (YRDKRL78G13) and Renesas Flash Programmer for programming and debugging - all tools validated for industrial temperature operation.
R5F101LDAFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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:
R5F101LDAFA#X0 FAQ
1.How can I place an order for R5F101LDAFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LDAFA#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 R5F101LDAFA#X0 reliable?
The price and inventory of R5F101LDAFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LDAFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LDAFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LDAFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LDAFA#X0?
R5F101LDAFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LDAFA#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 R5F101LDAFA#X0?
For technical support, including R5F101LDAFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LDAFA#X0 requirements.
6.How does Aetrix verify that R5F101LDAFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LDAFA#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 R5F101LDAFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LDAFA#X0?
All R5F101LDAFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LDAFA#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 R5F101LDAFA#X0 part is unused and in its original packaging.
Return procedure for R5F101LDAFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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