My Inquiry
My Account
Renesas R5F101LFDFA#X0
- Part No.:
- R5F101LFDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LFDFA#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,715
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F101LFDFA#X0 from Renesas is a 64-pin LQFP-0.65mm, 16-bit RL78/G13 microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, and industrial-grade operation (−40°C to +85°C). 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 interfaces, and on-chip debug.
For engineers reviewing the R5F101LFDFA#X0 datasheet, R5F101LFDFA#X0 pinout, R5F101LFDFA#X0 application, or R5F101LFDFA#X0 equivalent, key selection criteria include its 64-pin LQFP package, absence of data flash (R5F101x series), industrial temperature rating, and compatibility with RL78/G13 development tools and IAR/CS+ toolchains.
Technical Context
The R5F101LFDFA#X0 implements the RL78 CPU core with a 3-stage CISC pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory map spans 1 MB, with dedicated SFR regions and banked general-purpose registers (8×8-bit × 4 banks).
It features a 12-bit interval timer, real-time clock with calendar/alarm functions, watchdog timer with dedicated low-speed oscillator, and DMA controller with 2 channels enabling 2-clock transfers between SFR and RAM. The on-chip high-accuracy oscillator offers ±1.0% stability across 1.8–5.5 V and −20 to +85°C.
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 |
| Flash Memory | 64 KB code flash - supports self-programming with boot swap and flash shield window |
| Data Flash | None - R5F101x series omits on-chip data flash (vs. R5F100x) |
| RAM | 4 KB on-chip RAM - includes dedicated areas for flash library use (start address FEF00H) |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.0 V peripherals without level shifters |
| Operating Temperature | −40°C to +85°C - qualified for industrial applications (D-grade) |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active) - extends battery life in metering and sensor nodes |
Pinout & Package
Package: 64-pin LQFP, 12 mm × 12 mm, 0.65 mm pitch, plastic, surface-mount (JEDEC MS-026). RoHS-compliant, moisture sensitivity level (MSL) 3.
| 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-supply 1.6–5.5 V operation |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77 | General-purpose I/O ports | 64 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports different-potential interfaces |
| P10/SCK00/SCL00 | Serial clock input/output | Shared function pin for CSI0 (SPI-like) and I²C master/slave clock - enables dual-interface peripheral control |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive | Multi-function pin supporting CSI0 data-in, UART0 receive, debug channel, and I²C data - simplifies board routing |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog input channel 0 and selectable positive reference for 10-bit ADC - enables ratiometric sensing |
| RESET | Active-low reset input | Asynchronous reset with internal POR and LVD - ensures reliable startup under brown-out conditions |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | 0.57 μA RTC+LVD retention enables decade-scale battery life in utility meters and IoT edge sensors |
| On-chip high-accuracy oscillator | ±1.0% tolerance over full voltage/temperature range eliminates need for external crystal in cost-sensitive designs |
| Background operation (BGO) | Not applicable - R5F101x lacks data flash; BGO is exclusive to R5F100x series with data flash |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - supports time-stamped logging in industrial HMI and data loggers |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC - accelerates motor control and sensor fusion algorithms |
| Multi-protocol serial interfaces | Up to 8 CSI, 4 UART (LIN-capable), and 10 I²C channels - enables concurrent communication with displays, sensors, and actuators |
Applications
| Smart Energy Metering | Industrial HMI Panels |
|---|---|
|
Use Scenario: Residential and commercial electricity/water/gas meters requiring long-life battery operation and tamper-resistant firmware. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, secure flash updates, and optical/IR communication. Use Value: 0.57 μA STOP mode with RTC/LVD enables >10-year battery life; 64 KB flash accommodates encrypted firmware and tariff tables. |
Use Scenario: Local operator interfaces for PLC-controlled machinery, featuring button inputs, LED indicators, and serial display drivers. IC Role / Device Role / Timing Role: Real-time I/O coordinator handling keypad scanning, buzzer timing, display refresh via UART/I²C, and watchdog supervision. Use Value: 26-channel 10-bit ADC reads analog sensors; 64 GPIO pins support direct matrix keypad and multi-segment LED drive without external expanders. |
| Wireless Sensor Node MCU | Appliance Motor Control |
|
Use Scenario: Battery-powered environmental sensors (temp/humidity/pressure) transmitting data via sub-GHz or BLE modules. IC Role / Device Role / Timing Role: Sensor hub aggregating ADC readings, applying calibration, managing sleep/wake cycles, and interfacing with radio SoC via UART/SPI. Use Value: HALT mode at 66 μA/MHz minimizes active power; integrated LVD prevents erratic behavior during battery depletion. |
Use Scenario: Fan, pump, or compressor control in HVAC, refrigeration, and white goods using sensorless BLDC or stepper drives. IC Role / Device Role / Timing Role: Motion controller executing commutation logic, PWM generation, current sensing, and thermal protection. Use Value: Hardware multiplier and 16-bit timers enable precise 3-phase PWM with dead-time insertion; 41 DMIPS handles field-oriented control loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LFDFA#X0 | Same package and pinout; includes 4 KB data flash and flash library RAM usage at FEF00H | Supports background data flash rewriting (BGO); suitable where nonvolatile parameter storage is required | Select when firmware must store calibration data, event logs, or user settings independently of code flash |
| R5F101LFDFB#X0 | Identical memory and peripherals; differs only in package - LFQFP (10×10 mm, 0.5 mm pitch) vs. LQFP (12×12 mm, 0.65 mm pitch) | Higher pin density; requires PCB redesign but saves board area in space-constrained applications | Choose for compact designs where footprint reduction outweighs re-layout effort and thermal derating considerations |
Compared with R5F100LFDFA#X0, the R5F101LFDFA#X0 reduces BOM cost by omitting data flash while retaining identical performance and low-power capability; versus R5F101LFDFB#X0, it trades smaller footprint for easier thermal management and standard LQFP assembly compatibility.
Availability
R5F101LFDFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and battery-powered sensor node applications requiring stable component supply, long-term industrial qualification, and Renesas ecosystem support.
Supply support for R5F101LFDFA#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 enterprise markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust operation, rich analog integration, and energy efficiency.
FAQ
What is the flash memory configuration of the R5F101LFDFA#X0?
The R5F101LFDFA#X0 contains 64 KB of on-chip code flash memory and no data flash memory. This distinguishes it from the R5F100x series, which includes 4 KB of data flash. The R5F101LFDFA#X0 uses flash library RAM starting at address FEF00H for self-programming operations, and its flash block size is 1 KB with security features prohibiting unauthorized erase/write.
Does the R5F101LFDFA#X0 support real-time clock functionality?
Yes, the R5F101LFDFA#X0 integrates a dedicated real-time clock (RTC) module with calendar support for up to 99 years, alarm interrupt capability, and hardware clock correction. It operates independently in STOP mode with only 0.57 μA current draw when paired with the low-voltage detector (LVD), making it ideal for time-critical industrial logging and scheduling tasks.
What are the low-power operating modes supported by the R5F101LFDFA#X0?
The R5F101LFDFA#X0 supports HALT mode (66 μA/MHz), STOP mode (0.57 μA with RTC and LVD active), and SNOOZE mode (selective peripheral wake-up while CPU remains halted). These modes are controlled via software and enable aggressive power optimization in battery-powered applications such as utility meters and wireless sensors without sacrificing responsiveness.
Which development tools are compatible with the R5F101LFDFA#X0?
The R5F101LFDFA#X0 is fully supported by Renesas' CS+ IDE and IAR Embedded Workbench for RL78. It is compatible with E2 emulator Lite and E2 emulator for debugging and flash programming. Evaluation boards such as the YRDKRL78G13 provide hardware reference designs, pin-compatible headers, and example firmware for rapid prototyping of the R5F101LFDFA#X0 and other RL78/G13 variants.
How does the R5F101LFDFA#X0 differ from the R5F100LFDFA#X0?
The R5F101LFDFA#X0 and R5F100LFDFA#X0 share identical package (64-pin LQFP), pinout, clock system, peripherals, and CPU core. The sole functional difference is that R5F100LFDFA#X0 includes 4 KB of data flash memory with background operation (BGO), while R5F101LFDFA#X0 omits data flash entirely - reducing cost and die size for applications that store parameters in external EEPROM or do not require nonvolatile data storage.
R5F101LFDFA#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:
- 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 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101LFDFA#X0 FAQ
1.How can I place an order for R5F101LFDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LFDFA#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 R5F101LFDFA#X0 reliable?
The price and inventory of R5F101LFDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LFDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LFDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LFDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LFDFA#X0?
R5F101LFDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LFDFA#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 R5F101LFDFA#X0?
For technical support, including R5F101LFDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LFDFA#X0 requirements.
6.How does Aetrix verify that R5F101LFDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LFDFA#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 R5F101LFDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LFDFA#X0?
All R5F101LFDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LFDFA#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 R5F101LFDFA#X0 part is unused and in its original packaging.
Return procedure for R5F101LFDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F101LFDFA#X0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
