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Renesas R5F101GKAFB#X0
- Part No.:
- R5F101GKAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GKAFB#X0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,687
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Product details
Overview
R5F101GKAFB#X0 from Renesas is a 48-pin LFQFP-packaged RL78/G13 16-bit microcontroller with 256 KB flash, 8 KB data flash, and 20 KB RAM, operating at 1.6–5.5 V and supporting ultra-low-power modes (0.57 μA RTC+LVD). It delivers 41 DMIPS at 32 MHz and targets battery-powered industrial control, sensor nodes, and smart appliances.
For engineers reviewing the R5F101GKAFB#X0 datasheet, R5F101GKAFB#X0 pinout, R5F101GKAFB#X0 application, or R5F101GKAFB#X0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D-grade), and integrated real-time clock with calendar function.
Technical Context
The R5F101GKAFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting variable instruction execution time (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz) and 1 MB address space. It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, selectable 1–32 MHz) and dedicated low-speed oscillator for watchdog and RTC.
Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with alarm/calendar, 10-bit A/D converter (26-channel), 3× I²C/Simplified I²C interfaces, 4× UART/LIN channels, and 8× CSI (SPI-compatible) channels - all configurable via register-based control without external clock dependencies.
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 - enables 41 DMIPS performance for real-time control loops |
| Flash Memory | 256 KB code flash - supports large firmware images with bootloader partitioning |
| Data Flash | None - R5F101x series omits on-chip data flash; external EEPROM or FRAM required for nonvolatile parameter storage |
| RAM | 20 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and sensor data processing |
| Supply Voltage | 1.6–5.5 V - allows direct connection to single-cell Li-ion, 3.3 V, or 5 V rails without LDO |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA RTC+LVD active) - extends battery life in intermittent-sensing applications |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 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 under dynamic load |
| 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 interface |
| P10–P17 | Multi-function port | Shares SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00 - enables SPI/I²C/UART sharing on same pins |
| P20–P27 | Analog input port | ANI0–ANI7 with AVREFP/AVREFM reference inputs - supports 10-bit A/D conversion across 8 channels |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP, CLKM | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC accuracy or high-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Real-time clock (RTC) | Calendar function (99-year range), alarm interrupt, and clock correction - eliminates need for external RTC IC in time-stamped logging |
| Self-programming flash | Boot swap and flash shield window support - enables secure field firmware updates without external programmer |
| Background operation | A/D conversion and serial communication continue during flash erase/write - ensures deterministic timing in control systems |
| On-chip voltage detector | 14-level LVD with interrupt/reset option - provides precise brown-out protection across wide VDD range |
| DMA controller | 4-channel DMA with 2-cycle transfer between SFR and RAM - reduces CPU load during high-bandwidth peripheral transfers |
Applications
| Industrial Sensor Node | Smart Appliance Control |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node transmitting data hourly via UART-to-LoRaWAN gateway. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, data preprocessing, RTC-triggered wake-up, and UART framing. Use Value: 0.57 μA STOP mode with RTC maintains accurate wake-up intervals while extending 10-year battery life. | Use Scenario: Washing machine main control board managing motor drive, water valve sequencing, and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating PWM motor control, analog front-end (water level, temp), and touch-button scanning. Use Value: 256 KB flash accommodates complex state-machine logic and safety-certified firmware partitions. |
| Energy Meter Interface | Factory Automation I/O Module |
Use Scenario: DIN-rail mounted electricity meter add-on module reading pulse outputs and communicating via RS-485. IC Role / Device Role / Timing Role: Isolated interface processor handling pulse counting, CRC-verified Modbus RTU over UART, and LED status signaling. Use Value: Integrated 10-bit A/D and 4× UART channels eliminate external transceivers and ADCs, reducing BOM count by 3 components. | Use Scenario: Modular PLC I/O expansion unit with 16 digital inputs and 8 relay outputs controlled via CANopen. IC Role / Device Role / Timing Role: Local intelligence node performing debounce filtering, output timing control, and CAN message assembly. Use Value: 48-pin LFQFP package provides sufficient I/O (up to 38 GPIO) and peripheral concurrency for parallel input sampling and output latching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GKAFB#X0 | Includes 8 KB on-chip data flash; otherwise identical flash/RAM/peripherals | Preferred where firmware requires frequent nonvolatile parameter writes (e.g., calibration data) | Select when data flash endurance (1M cycles) and background rewrite capability are mandatory |
| RL78/G14 R5F104GKAFB#X0 | Same pinout, 256 KB flash, but adds 16 KB RAM, USB 2.0 FS, and enhanced security (AES, TRNG) | Suitable for USB-connected devices requiring secure firmware updates or HID functionality | Choose only if USB interface or cryptographic acceleration justifies higher cost and power |
Compared with R5F100GKAFB#X0, the R5F101GKAFB#X0 trades data flash for lower cost and identical code density, while the RL78/G14 alternative adds USB and security at the expense of higher static current - making R5F101GKAFB#X0 optimal for cost-sensitive, battery-operated industrial controllers without USB needs.
Availability
R5F101GKAFB#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance control, and energy meter interface applications requiring stable component supply across extended product lifecycles.
Supply support for R5F101GKAFB#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets.
The RL78/G13 family was designed for ultra-low-power general-purpose embedded control, balancing performance, integration, and energy efficiency in cost-sensitive industrial and consumer applications.
FAQ
What is the operating temperature range for the R5F101GKAFB#X0?
The R5F101GKAFB#X0 is rated for industrial operation from –40°C to +85°C (D-grade), as confirmed in the RL78/G13 datasheet Section 1.1. This specification applies to the full device - including flash programming, RTC operation, and analog peripherals - within the 1.6–5.5 V supply range.
Does the R5F101GKAFB#X0 include on-chip data flash memory?
No, the R5F101GKAFB#X0 does not include on-chip data flash memory. Per the RL78/G13 datasheet Section 1.2 and memory matrix (Page 2), the "101" prefix explicitly denotes products without data flash. The R5F101GKAFB#X0 provides 256 KB code flash and 20 KB RAM only - external nonvolatile memory is required for parameter storage.
What package type and pin pitch does the R5F101GKAFB#X0 use?
The R5F101GKAFB#X0 uses a 48-pin LFQFP package with 0.5 mm pin pitch, as defined in Figure 1-1 and Table 1-1 of the RL78/G13 datasheet. The "FB" suffix in the part number confirms LFQFP, and "#X0" indicates embossed tape packaging - compatible with standard SMT pick-and-place equipment.
Can the R5F101GKAFB#X0 operate from a single 1.8 V supply?
Yes, the R5F101GKAFB#X0 supports operation down to 1.6 V, so it functions reliably at 1.8 V. All peripherals - including the 10-bit A/D converter, RTC, and UART - are specified across the full 1.6–5.5 V range per Section 1.1 of the datasheet, enabling direct interface with 1.8 V logic families without level shifters.
How many analog input channels does the R5F101GKAFB#X0 support?
The R5F101GKAFB#X0 supports up to 26 analog input channels (ANI0–ANI25), as stated in Section 1.1 "A/D converter" of the RL78/G13 datasheet. Channel mapping is fixed per pin assignment in the 48-pin LFQFP package - P20–P27 provide ANI0–ANI7, and additional ANI pins are allocated to P30–P37 and P40–P47 depending on configuration.
R5F101GKAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101GKAFB#X0 FAQ
1.How can I place an order for R5F101GKAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GKAFB#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 R5F101GKAFB#X0 reliable?
The price and inventory of R5F101GKAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GKAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101GKAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GKAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GKAFB#X0?
R5F101GKAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GKAFB#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 R5F101GKAFB#X0?
For technical support, including R5F101GKAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GKAFB#X0 requirements.
6.How does Aetrix verify that R5F101GKAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101GKAFB#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 R5F101GKAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101GKAFB#X0?
All R5F101GKAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GKAFB#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 R5F101GKAFB#X0 part is unused and in its original packaging.
Return procedure for R5F101GKAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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