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Renesas R5F101SKDFB#30
- Part No.:
- R5F101SKDFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F101SKDFB#30.pdf
- Description:
- IC MCU 16BIT 384KB FLSH 128LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:432
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Product details
Overview
R5F101SKDFB#30 from Renesas is a 32-bit RL78/G13 microcontroller with no data flash memory, housed in a 64-pin LFQFP (0.5 mm pitch) package, operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz, and featuring ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode). It targets battery-powered industrial sensors and smart metering endpoints requiring long-life operation and integrated analog peripherals.
For engineers reviewing the R5F101SKDFB#30 datasheet, R5F101SKDFB#30 pinout, R5F101SKDFB#30 application, or R5F101SKDFB#30 equivalent, key selection criteria include its 128 KB code flash size, absence of on-chip data flash, 10-bit 26-channel ADC, real-time clock with calendar, and support for LIN-bus UART - all within an industrial-grade (-40°C to +85°C) temperature range.
Technical Context
The R5F101SKDFB#30 implements the RL78 CPU core with a 3-stage CISC pipeline, supporting variable instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). Its memory architecture includes 128 KB of code flash organized in 1 KB blocks and 8 KB of on-chip RAM, with no data flash provisioned per part numbering convention ('101' suffix).
Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, one real-time clock with alarm/calendar, one watchdog timer, three I²C/Simplified I²C channels, two UART/LIN channels, two CSI (SPI-compatible) channels, and a 10-bit A/D converter with internal 1.45 V reference and temperature sensor - all accessible via 52 programmable I/O pins in its 64-pin LFQFP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS; supports dynamic clock switching between high-speed (32 MHz) and low-speed (32.768 kHz) oscillators |
| Flash Memory | 128 KB code flash - organized in 1 KB erasable blocks with security lock and self-programming capability |
| RAM | 8 KB on-chip RAM - used for variables, stack, and flash library operations (start address FEF00H) |
| A/D Converter | 10-bit resolution, 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic systems |
| Temperature Range | -40°C to +85°C - qualified for industrial applications (D-grade marking) |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), 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 domain operation; decoupling required per datasheet layout guidelines |
| P00–P07 | Port 0 general-purpose I/O | 8-bit port with N-ch open-drain option, TTL input buffer, and pull-up resistors - supports different-potential interfacing |
| P10–P17 | Port 1 general-purpose I/O | Includes SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00 - enables dual-role SPI/I²C and debug UART functions |
| P20–P27 | Analog input / reference pins | P20/P21 serve as AVREFP/AVREFM; P22–P27 are analog inputs - critical for precision ADC measurements |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for reliable power-on and brownout recovery |
| CLKP/CLKN | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC accuracy; also accepts external main clock up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA system sleep states while retaining RTC and LVD functionality - extends battery life in intermittent-sensing applications |
| On-chip high-accuracy oscillator | +/-1.0% tolerance over full voltage (1.8–5.5 V) and temperature (-20 to +85°C) range - eliminates need for external crystal in cost-sensitive designs |
| Background operation (BGO) | Not applicable - R5F101SKDFB#30 lacks data flash memory, so BGO for data flash rewrite is not implemented |
| Integrated LIN-capable UART | Supports LIN 2.2 protocol directly in hardware - reduces firmware overhead for automotive body electronics and industrial control networks |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - enables time-stamped logging and scheduled wake-up without external RTC IC |
Applications
| Smart Energy Meters | Industrial Sensor Nodes |
|---|---|
Use Scenario: Battery-powered gas/water meters performing periodic pressure, temperature, and flow sampling with time-stamped data storage. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing RTC-based sampling intervals, and handling secure firmware updates via UART. Use Value: 128 KB flash accommodates dual-bank bootloader and metrology firmware; ultra-low STOP mode current (0.57 μA) enables >10-year battery life. | Use Scenario: Wireless vibration/temperature sensor nodes in predictive maintenance systems, transmitting data via UART-to-LoRaWAN gateways. IC Role / Device Role / Timing Role: Signal acquisition controller using 10-bit ADC and temperature sensor, coordinating timed wake-up, measurement, and UART transmission bursts. Use Value: Integrated 32.768 kHz RTC and SNOOZE mode allow precise 1–60 s wake intervals; 52 GPIOs support multi-sensor expansion. |
| Home Appliance Control | Building Automation Panels |
Use Scenario: MCU in washing machine control board managing motor drive timing, water level sensing, and user interface feedback. IC Role / Device Role / Timing Role: Real-time coordinator of PWM motor control, ADC-based water level detection, buzzer output, and key interrupt-driven UI navigation. Use Value: On-chip buzzer output controller and key interrupt function reduce external component count; 16-bit timers enable accurate motor phase timing. | Use Scenario: Standalone HVAC zone controller reading temperature/humidity sensors, driving relays, and communicating via LIN bus to central unit. IC Role / Device Role / Timing Role: LIN protocol master node managing sensor polling, actuator control, and fault reporting over automotive-grade serial interface. Use Value: Hardware LIN support ensures deterministic timing and reduced CPU load; 1.6–5.5 V operation allows direct connection to 3.3 V or 5 V building power rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100SKDFB#30 | Same package and pinout, but includes 8 KB data flash memory | Required when firmware needs non-volatile parameter storage (e.g., calibration data, device IDs) without external EEPROM | Select R5F100SKDFB#30 if data flash persistence is mandatory; otherwise R5F101SKDFB#30 reduces cost and simplifies flash management |
| R5F101MJDFB#30 | Same RL78/G13 family, 64-pin LFQFP, but with 96 KB flash and 4 KB RAM | Suitable for less feature-intensive control tasks where smaller code footprint and lower RAM usage are acceptable | Choose R5F101MJDFB#30 to reduce BOM cost when application fits within 96 KB flash and does not require full 8 KB RAM allocation |
Compared with R5F100SKDFB#30, the R5F101SKDFB#30 trades data flash for lower cost and simplified firmware architecture, while compared with R5F101MJDFB#30 it provides higher code density and more RAM for complex sensor fusion or communication stacks.
Availability
R5F101SKDFB#30 is available at Aetrix Electronics and suitable for smart energy meters, industrial sensor nodes, home appliance control units, and building automation panels requiring stable component supply across multi-year production cycles.
Supply support for R5F101SKDFB#30 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 product line delivers true low-power 32-bit performance for general-purpose embedded control, emphasizing energy efficiency, integrated analog peripherals, and robust industrial qualification - targeting cost-sensitive, battery-operated, and safety-aware systems.
FAQ
What is the flash memory configuration of the R5F101SKDFB#30?
The R5F101SKDFB#30 contains 128 KB of code flash memory organized in 1 KB erasable blocks, with no on-chip data flash memory (indicated by the '101' in the part number). This configuration supports secure boot, flash shield window protection, and self-programming with boot swap functionality - ideal for applications where firmware updates are managed externally or via code flash partitioning.
Does the R5F101SKDFB#30 support LIN bus communication?
Yes, the R5F101SKDFB#30 supports LIN bus communication through its UART peripheral, which is explicitly LIN-bus compatible per the RL78/G13 datasheet. Two UART channels are available, each configurable for LIN 2.2 frame formatting, checksum generation, and automatic sync-break detection - enabling direct integration into automotive body electronics or industrial control networks without external transceivers.
What is the operating temperature range for the R5F101SKDFB#30?
The R5F101SKDFB#30 is rated for industrial operation from -40°C to +85°C (D-grade marking), validated across its full voltage range (1.6 V to 5.5 V). This specification ensures reliable performance in harsh environments such as factory floors, outdoor utility enclosures, and HVAC equipment - with built-in LVD and POR circuits maintaining functional integrity during thermal transients.
How many analog input channels does the R5F101SKDFB#30 provide?
The R5F101SKDFB#30 integrates a 10-bit A/D converter with up to 26 analog input channels, including dedicated AVREFP/AVREFM pins and an internal temperature sensor. The ADC operates across the full 1.6–5.5 V supply range and supports simultaneous sampling with internal 1.45 V reference - making it suitable for multi-sensor monitoring in industrial and metering applications.
Is the R5F101SKDFB#30 pin-compatible with other RL78/G13 devices in the same package?
Yes, the R5F101SKDFB#30 shares identical pinout and electrical characteristics with other 64-pin LFQFP RL78/G13 variants (e.g., R5F100SKDFB#30, R5F101MJDFB#30), enabling drop-in replacement within the same package family. However, functional differences - such as presence/absence of data flash or RAM size - require firmware validation to ensure compatibility with memory-mapped drivers and initialization routines.
R5F101SKDFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 110
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 26x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101SKDFB#30 FAQ
1.How can I place an order for R5F101SKDFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101SKDFB#30 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 R5F101SKDFB#30 reliable?
The price and inventory of R5F101SKDFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101SKDFB#30 is usually 5 days.
3.What payment methods are accepted for R5F101SKDFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101SKDFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101SKDFB#30?
R5F101SKDFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101SKDFB#30 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 R5F101SKDFB#30?
For technical support, including R5F101SKDFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101SKDFB#30 requirements.
6.How does Aetrix verify that R5F101SKDFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F101SKDFB#30 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 R5F101SKDFB#30 meets industry standards.
7.What is the process for return or replacement of R5F101SKDFB#30?
All R5F101SKDFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101SKDFB#30, 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 R5F101SKDFB#30 part is unused and in its original packaging.
Return procedure for R5F101SKDFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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