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Renesas R5F101LCAFB#X0
- Part No.:
- R5F101LCAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LCAFB#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,863
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Product details
Overview
R5F101LCAFB#X0 from Renesas is a 64-pin, LFQFP-0.5 mm pitch, 16 KB flash, no data flash, industrial-grade RL78/G13 16-bit microcontroller operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), used in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F101LCAFB#X0 datasheet, R5F101LCAFB#X0 pinout, R5F101LCAFB#X0 application, or R5F101LCAFB#X0 equivalent, key selection criteria include its 64-pin LFQFP package, absence of on-chip data flash, -40°C to +85°C industrial temperature grade, and support for UART/LIN, I²C, and 16-bit timers in space-constrained embedded systems.
Technical Context
The R5F101LCAFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction timing (0.03125 μs @32 MHz to 30.5 μs @32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz) and supports background operation during flash self-programming.
It features 16 KB code flash memory (1 KB block size), 2 KB RAM, 12-bit interval timer, real-time clock with calendar/alarm, 8-channel 10-bit A/D converter (6 analog inputs), and 44 general-purpose I/O pins - all optimized for deterministic low-power operation in resource-constrained industrial edge devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Performance | 41 DMIPS at 32 MHz - enables real-time control loop execution in motor drives and PLC modules |
| Memory | 16 KB code flash (1 KB erase blocks), 2 KB RAM, no data flash - simplifies firmware update logic but requires external NV storage for logging |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE - extends battery life in wireless sensor transmitters |
| Analog Peripherals | 8/10-bit A/D converter with 6 input channels and internal 1.45 V reference - supports direct sensor interfacing without external voltage references |
| Timers & Clock | Real-time clock (99-year calendar, alarm, correction), 12-bit interval timer, watchdog timer - enables time-stamped event logging and fail-safe reset |
| Serial Interfaces | 2× UART/LIN, 3× I²C/Simplified I²C, 2× CSI (SPI-compatible) - supports multi-protocol communication with sensors, displays, and CAN gateways |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.50-mm pitch), RoHS-compliant, industrial temperature grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support mixed-voltage I/O (1.8/2.5/3.0 V interface capability) |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57 | General-purpose I/O | 44 configurable GPIOs with N-ch open drain, TTL input buffer, and on-chip pull-up - enables direct connection to switches, LEDs, and digital sensors |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pins supporting SPI clock/data, UART receive, debug interface, and I²C data - reduces PCB routing complexity in compact designs |
| P20/P21 | ANI0/AVREFP, ANI1/AVREFM | Analog input channels with dedicated reference voltage pins - ensures stable A/D conversion accuracy across supply variations |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion - provides robust system initialization under brown-out conditions |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active - enables >10-year battery life in metering applications |
| On-chip oscillator accuracy | ±1.0% over -20°C to +85°C at VDD = 1.8–5.5 V - eliminates need for external crystal in cost-sensitive industrial controls |
| Self-programmable flash | Boot swap and flash shield window functions enable secure field firmware updates without external programmer |
| Multi-protocol serial support | UART/LIN + I²C + CSI on shared pins - allows single MCU to manage diverse peripherals (motor drivers, EEPROMs, displays) |
| Real-time clock with calendar | 99-year date/time tracking with alarm and auto-correction - supports scheduled maintenance alerts in building automation systems |
Applications
| Smart Energy Metering | Industrial Sensor Hub |
|---|---|
|
Use Scenario: Compact, battery-operated electricity/water/gas meters requiring long-term timestamped consumption logging and tamper detection. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing LCD display, handling pulse counting, and maintaining RTC-based billing cycles. Use Value: Ultra-low STOP-mode current (0.57 μA) and integrated RTC enable >15-year battery life without external timekeeping ICs. |
Use Scenario: DIN-rail mounted sensor aggregator collecting temperature, humidity, and vibration data from multiple field transducers. IC Role / Device Role / Timing Role: Central data concentrator with UART-to-I²C bridging, local preprocessing, and periodic CAN/LIN transmission to PLC. Use Value: 44 GPIOs and dual UART/LIN interfaces allow direct connection to 8+ analog/digital sensors while supporting legacy industrial bus protocols. |
| White Goods Control Panel | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: Front-panel controller for washing machines, dishwashers, or HVAC units requiring button scanning, buzzer feedback, and motor sequencing. IC Role / Device Role / Timing Role: Human-machine interface manager with key interrupt, buzzer output, PWM motor control, and real-time cycle timing. Use Value: On-chip buzzer output controller and key interrupt function reduce BOM count by eliminating discrete tone generators and debounce circuits. |
Use Scenario: Modular 16-channel digital input module for industrial PLC backplanes, monitoring limit switches, safety interlocks, and status indicators. IC Role / Device Role / Timing Role: Isolated input conditioner with fast edge detection, noise filtering, and diagnostic reporting via RS-485. Use Value: Configurable N-ch open-drain I/O with 6 V withstand voltage tolerates industrial-level transients without external protection diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LCAFB#X0 | Includes 4 KB data flash; same package, core, and peripherals | Supports EEPROM-like parameter storage without external memory | Select when firmware requires nonvolatile configuration storage (e.g., calibration data, device IDs) |
| R5F101LCDFB#X0 | Same 16 KB flash, 2 KB RAM, no data flash, but D-grade (-40°C to +85°C) industrial temp rating | Identical thermal spec to R5F101LCAFB#X0 - both rated for industrial ambient | Valid alternative if exact pin compatibility and identical functionality are confirmed in design; verify packaging code suffix matches |
Compared with R5F101LCAFB#X0, R5F100LCAFB#X0 adds data flash for field-updatable parameters but increases cost and code footprint, while R5F101LCDFB#X0 offers identical functionality and qualification - making it a drop-in substitute only if Renesas documentation confirms identical pinout and timing behavior.
Availability
R5F101LCAFB#X0 is available at Aetrix Electronics and suitable for industrial sensor hubs, smart energy metering, and white goods control panels requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for R5F101LCAFB#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 true low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and industrial control applications where energy efficiency, integration, and qualification reliability are critical.
FAQ
What is the operating temperature range for R5F101LCAFB#X0?
The R5F101LCAFB#X0 is rated for industrial operation from -40°C to +85°C. This specification is defined by the 'D' grade in the part number and validated per Renesas' qualification standards for extended thermal stability in factory automation and outdoor metering environments. The device maintains full functionality-including RTC accuracy and flash programming-across this full range.
Does R5F101LCAFB#X0 include on-chip data flash memory?
No, R5F101LCAFB#X0 does not include on-chip data flash memory. As indicated by the '101' prefix in the part number (per Renesas RL78/G13 naming convention), this variant provides only 16 KB of code flash and 2 KB of RAM. Applications requiring nonvolatile parameter storage must use external EEPROM or FRAM, or select the '100' series (e.g., R5F100LCAFB#X0) which includes 4 KB data flash.
What package type and pin pitch does R5F101LCAFB#X0 use?
R5F101LCAFB#X0 uses a 64-pin LFQFP package with 0.50-mm pin pitch, measuring 10 mm × 10 mm. The '#FB' suffix explicitly denotes LFQFP, and '#X0' indicates embossed tape packaging. This package supports fine-pitch PCB assembly and provides 44 usable I/O pins alongside power, reset, and clock terminals.
Can R5F101LCAFB#X0 operate without an external crystal?
Yes, R5F101LCAFB#X0 can operate without an external crystal. Its high-accuracy on-chip oscillator supports frequencies from 1 MHz to 32 MHz with ±1.0% tolerance over -20°C to +85°C and full VDD range (1.8–5.5 V), enabling crystal-free designs in cost-sensitive industrial controls and consumer appliances.
How many analog input channels does R5F101LCAFB#X0 support?
R5F101LCAFB#X0 supports 6 analog input channels (ANI0–ANI5) via its 8/10-bit A/D converter. These are mapped to pins P20–P25, with P20/P21 also serving as AVREFP/AVREFM reference voltage inputs. The ADC operates across the full 1.6–5.5 V supply range and includes an internal 1.45 V reference for ratiometric measurements.
R5F101LCAFB#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
R5F101LCAFB#X0 FAQ
1.How can I place an order for R5F101LCAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LCAFB#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 R5F101LCAFB#X0 reliable?
The price and inventory of R5F101LCAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LCAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LCAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LCAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LCAFB#X0?
R5F101LCAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LCAFB#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 R5F101LCAFB#X0?
For technical support, including R5F101LCAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LCAFB#X0 requirements.
6.How does Aetrix verify that R5F101LCAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LCAFB#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 R5F101LCAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LCAFB#X0?
All R5F101LCAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LCAFB#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 R5F101LCAFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LCAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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