My Inquiry
My Account
Renesas R5F101LFDFB#X0
- Part No.:
- R5F101LFDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LFDFB#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,432
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F101LFDFB#X0 from Renesas is a 64-pin LFQFP, 0.5-mm pitch, 128 KB flash, 8 KB RAM, RL78/G13 16-bit microcontroller with ultra-low power consumption (66 μA/MHz), 32 MHz max CPU speed, and integrated RTC, ADC, UART, I²C, and SPI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101LFDFB#X0 datasheet, R5F101LFDFB#X0 pinout, R5F101LFDFB#X0 application, or R5F101LFDFB#X0 equivalent, key selection criteria include its data flash omission (vs. R5F100L series), -40°C to +85°C industrial temperature grade (D suffix), LFQFP-64 package compatibility, and real-time clock + low-voltage detection support for energy-harvesting systems.
Technical Context
The R5F101LFDFB#X0 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 ultra-low-power mode). It integrates on-chip power-on-reset (POR), voltage detector (LVD) with 14 selectable levels, and HALT/STOP/SNOOZE low-power modes.
It features 8-channel 16-bit timers, one 12-bit interval timer, one calendar-capable real-time clock (RTC), and an 8/10-bit A/D converter with up to 26 analog inputs and internal 1.45 V reference - all operating across 1.6–5.5 V supply range without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - delivers 41 DMIPS performance for deterministic real-time control |
| Flash Memory | 128 KB code flash - supports block erase (1 KB), self-programming, and boot swap |
| RAM | 8 KB on-chip RAM - includes dedicated areas for flash library operation (start address F7F00H) |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with Li-ion, coin-cell, and 3.3/5 V system rails |
| Operating Temp | -40°C to +85°C (Industrial D-grade) - qualified for factory automation and building controls |
| Low-Power Modes | HALT (0.57 μA), STOP, SNOOZE - enables multi-year battery life in sensor nodes |
Pinout & Package
Package: LFQFP-64, 10 mm × 10 mm, 0.5-mm pitch, exposed pad (PLQP0064KF-A).
| 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 | General-purpose I/O port | Configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V level shifting |
| P10–P17 | Multi-function port | Includes SCK00/SCL00, SI00/RxD0, SO00/TxD0, and TOOLRxD - enables UART debug and I²C master/slave |
| P20–P27 | Analog input port | ANI0–ANI7 with AVREFP/AVREFM references - supports 8/10-bit A/D conversion at full supply range |
| RESET | Active-low reset input | Accepts external reset; internally tied to POR and LVD circuits for autonomous fault recovery |
| XT1, XT2 | Crystal oscillator terminals | Supports 32.768 kHz crystal for RTC accuracy; optional high-speed crystal up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 0.57 μA typical current draw with only RTC and LVD active - extends battery life in always-on monitoring |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction - eliminates external RTC IC and reduces BOM count |
| Background Data Flash rewrite | BGO allows code execution during 4 KB data flash programming - enables seamless firmware updates |
| Integrated LVD with 14 levels | Programmable voltage detection from 1.6 V to 4.5 V - provides precise brown-out protection without external comparators |
| Multi-protocol serial interface | 3× I²C, 2× UART (LIN-capable), 2× CSI (SPI-compatible) - simplifies connectivity to sensors, displays, and transceivers |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, tamper detection, and RF communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing EEPROM-less parameter storage via flash, and driving real-time billing timestamps. Use Value: RTC calendar and 0.57 μA HALT mode enable >10-year battery backup; 128 KB flash accommodates dual-bank firmware for secure OTA updates. |
Use Scenario: Wireless vibration/temperature/humidity node in predictive maintenance systems. IC Role / Device Role / Timing Role: Sensor aggregator with ADC sampling, FFT preprocessing, and low-power sleep scheduling between BLE/Wi-SUN transmissions. Use Value: 8/10-bit ADC with internal reference eliminates external precision voltage source; SNOOZE mode reduces average current to <10 μA per measurement cycle. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: MCU in washing machine control board managing motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating PWM motor control, touch sensing, and display refresh via hardware timers. Use Value: 16-bit timer channels support precise 3-phase motor commutation; 64-pin LFQFP provides ample GPIO for relay drivers and status LEDs. |
Use Scenario: HVAC zone controller interfacing with thermostats, dampers, and Modbus RTU gateways. IC Role / Device Role / Timing Role: Protocol bridge translating BACnet MS/TP or KNX signals to local actuator commands with deterministic timing. Use Value: Dual UARTs support simultaneous Modbus master/slave operation; LVD interrupt ensures graceful shutdown during AC brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LFDFB#X0 | Includes 4 KB data flash; identical pinout, package, and peripherals | Required when non-volatile parameter storage (e.g., calibration data, device ID) must survive power loss | Select if field-updatable configuration storage is needed; otherwise R5F101LFDFB#X0 reduces cost and flash wear |
| RL78/G14 R5F104LEAFB#X0 | Higher 256 KB flash, 32 KB RAM, enhanced DMA and security; same 64-pin LFQFP-0.5 mm | Suitable for complex HMI or encrypted firmware update requirements beyond G13 capabilities | Choose when future scalability, larger code footprint, or AES encryption is required - not drop-in compatible due to register map differences |
Compared with R5F100LFDFB#X0, the R5F101LFDFB#X0 removes data flash to reduce cost and simplify flash management, while retaining identical timing, I/O, and low-power behavior; versus RL78/G14, it trades memory and security for lower BOM cost and proven qualification in cost-sensitive industrial designs.
Availability
R5F101LFDFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended production lifecycles.
Supply support for R5F101LFDFB#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 family targets cost-sensitive, ultra-low-power general-purpose applications - designed to replace legacy 8-bit MCUs with enhanced integration, reduced external components, and simplified certification for industrial and consumer equipment.
FAQ
Does R5F101LFDFB#X0 include data flash memory?
No, R5F101LFDFB#X0 does not include data flash memory - this distinguishes it from the R5F100L series (e.g., R5F100LFDFB#X0), which integrates 4 KB of data flash. The R5F101LFDFB#X0 relies on code flash for parameter storage using flash shield window and block protection features. This design reduces cost and flash wear cycles where persistent non-volatile storage is not required.
What is the maximum operating frequency and associated performance of R5F101LFDFB#X0?
The R5F101LFDFB#X0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs under these conditions. The core supports dynamic clock switching down to 32.768 kHz (30.5 μs/instruction) for ultra-low-power RTC and monitoring tasks - all within the same device.
Which package type and pin count does R5F101LFDFB#X0 use?
R5F101LFDFB#X0 uses a 64-pin LFQFP (Low-profile Fine-pitch Quad Flat Package) with 0.5-mm pitch and 10 mm × 10 mm body size (RENESAS code PLQP0064KF-A). The "FB" suffix in the part number explicitly denotes the LFQFP-64 package, and "#X0" indicates embossed tape packaging - confirmed in Renesas' RL78/G13 ordering guide (R01DS0131EJ0380, p. 4).
What low-power modes are supported by R5F101LFDFB#X0, and what are their typical current draws?
R5F101LFDFB#X0 supports HALT, STOP, and SNOOZE modes. HALT mode draws 0.57 μA (typical) with only RTC and LVD active; STOP mode achieves sub-μA levels depending on wake sources; SNOOZE enables peripheral operation (e.g., UART receive) while CPU sleeps. All modes operate across the full 1.6–5.5 V supply range and -40°C to +85°C temperature range.
Can R5F101LFDFB#X0 drive a 32.768 kHz crystal for RTC functionality?
Yes, R5F101LFDFB#X0 supports external 32.768 kHz crystal connection via XT1/XT2 pins to operate its calendar-capable real-time clock. The RTC includes alarm, periodic interrupt, and clock correction functions - all functional in HALT mode with only 0.57 μA current draw. No external load capacitors are required when using Renesas-recommended crystals per the hardware manual.
R5F101LFDFB#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:
R5F101LFDFB#X0 FAQ
1.How can I place an order for R5F101LFDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LFDFB#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 R5F101LFDFB#X0 reliable?
The price and inventory of R5F101LFDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LFDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LFDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LFDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LFDFB#X0?
R5F101LFDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LFDFB#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 R5F101LFDFB#X0?
For technical support, including R5F101LFDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LFDFB#X0 requirements.
6.How does Aetrix verify that R5F101LFDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LFDFB#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 R5F101LFDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LFDFB#X0?
All R5F101LFDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LFDFB#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 R5F101LFDFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LFDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F101LFDFB#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…
