Renesas R5F101GEAFB#10
- Part No.:
- R5F101GEAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GEAFB#10.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,000
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Product details
Overview
R5F101GEAFB#10 from Renesas is a 48-pin LFQFP-48, 5 V-tolerant 16-bit RL78/G13 microcontroller with 64 KB flash, 4 KB data flash, and 4 KB RAM, operating from 1.6–5.5 V at up to 32 MHz (41 DMIPS), optimized for ultra-low-power industrial control and sensor interface applications.
For engineers reviewing the R5F101GEAFB#10 datasheet, R5F101GEAFB#10 pinout, R5F101GEAFB#10 application, or R5F101GEAFB#10 equivalent, key selection criteria include its 0.5 μA STOP mode current, integrated RTC + LVD, 10-bit 26-channel ADC, and hardware UART/I²C/CSI interfaces supporting battery-powered and space-constrained embedded designs.
Technical Context
The R5F101GEAFB#10 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock), and features on-chip debug, self-programming flash with boot swap, and background operation during data flash rewriting.
It integrates dual power domains (VDD/VL), 14-level LVD with interrupt/reset options, 8× 16-bit timers, real-time clock with calendar/alarm, watchdog timer, and DMA controller with 4 channels - all designed for deterministic timing and robust operation in industrial ambient conditions (−40°C to +105°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Memory | 64 KB code flash (1 KB blocks), 4 KB data flash (1M rewrite cycles), 4 KB RAM |
| Power | 1.6–5.5 V supply; 66 μA/MHz active; 0.57 μA STOP mode (RTC + LVD only) |
| ADC | 10-bit resolution, 26 analog inputs, internal 1.45 V reference and temperature sensor |
| Clock | High-accuracy on-chip oscillator (±1.0% from 1–32 MHz); supports 32.768 kHz crystal for RTC |
| I/O | 39 programmable I/O pins (N-ch open-drain, TTL input, pull-up), 1.8/2.5/3.0 V interface support |
| Peripherals | UART ×2 (LIN-capable), I²C ×3, CSI ×2, 16-bit timer ×8, RTC, WDT, DMA ×4, multiplier/divider/MAC |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade (−40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual-domain VDD (core/peripheral) and VL (low-voltage logic); decoupling required per datasheet layout guidelines |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open-drain (6 V tolerant), TTL input, or with internal pull-up; supports key interrupt |
| P10/P11 | SPI/I²C/UART shared pins | Multiplexed SCK00/SCL00 and SI00/RxD0/SDA00; hardware auto-switching between protocols |
| P20–P27 | Analog input / reference | ANI0–ANI7 with AVREFP/AVREFM; enables simultaneous 8-channel sampling and internal temp sensing |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD reset outputs |
| CLKP/CLKM | External crystal connection | Supports 32.768 kHz crystal for RTC; not used when high-speed on-chip oscillator selected |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD active - enables >10-year battery life in metering applications |
| Self-programmable flash | Boot swap and flash shield window enable secure firmware updates without external programmer |
| Hardware peripheral independence | UART/I²C/CSI share pins but operate independently - no software arbitration needed during concurrent use |
| Temperature-compensated RTC | Calendar function (99 years), alarm, and clock correction via internal temperature sensor - no external compensation circuitry |
| Dual-voltage I/O interface | Direct connection to 1.8 V, 2.5 V, or 3.0 V logic without level shifters - reduces BOM count and PCB area |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with tamper detection, pulse counting, and wireless upload. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing RTC-based billing intervals, and handling UART/LIN communication to concentrator. Use Value: 0.57 μA STOP mode extends 10+ year battery life; integrated LVD prevents data corruption during brownout; 26-channel ADC supports multi-sensor fusion. |
Use Scenario: DIN-rail mounted temperature/humidity/pressure node with Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time data acquisition and protocol stack execution; RTC synchronizes timestamped logs; UART handles Modbus framing. Use Value: Hardware UART with LIN support simplifies RS-485 transceiver integration; 10-bit ADC provides ±0.5% measurement accuracy; −40°C to +105°C rating ensures field reliability. |
| Home Appliance Control | Medical Diagnostic Device |
|
Use Scenario: Washing machine main board controlling motor, valves, display, and user interface. IC Role / Device Role / Timing Role: Central MCU managing PWM motor drive, touch-key scanning, buzzer output, and fault logging via RTC-stamped events. Use Value: On-chip buzzer controller eliminates external driver; key interrupt reduces polling overhead; 64 KB flash accommodates safety-certified firmware and OTA update partition. |
Use Scenario: Portable blood glucose monitor with LCD, button interface, and USB charging. IC Role / Device Role / Timing Role: System-on-chip managing electrochemical sensor readout, calibration, data storage, and USB CDC communication. Use Value: Integrated 1.45 V reference enables stable ADC measurements across voltage range; data flash stores calibration coefficients with 1M-cycle endurance; 1.6 V min VDD supports deep discharge battery operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GEAFB#10 | Includes 8 KB data flash (vs. 4 KB); same package, peripherals, and power specs | Preferred where frequent field calibration or parameter logging requires higher data flash endurance and capacity | Select when extended data logging or dual-bank firmware updates are required; otherwise R5F101GEAFB#10 offers cost advantage |
| RL78/G14 R5F111GEAFP#30 | Enhanced 128 KB flash, 12 KB RAM, 12-bit ADC, and CAN 2.0B interface; 48-pin LQFP-48 | Required for CAN-based building automation or automotive subsystems needing higher memory and protocol support | Choose only if CAN bus connectivity or >64 KB code space is mandatory; adds complexity and cost without benefit for pure UART/I²C systems |
Compared with R5F100GEAFB#10, the R5F101GEAFB#10 reduces data flash to 4 KB while maintaining identical performance, low-power behavior, and peripheral set - making it optimal for cost-sensitive, non-logging applications; versus RL78/G14, it trades CAN and larger memory for lower price and proven qualification in industrial temperature grades.
Availability
R5F101GEAFB#10 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and portable medical devices requiring stable component supply across long production lifecycles.
Supply support for R5F101GEAFB#10 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 IoT markets.
The RL78/G13 family delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and thermally constrained industrial and consumer applications - emphasizing energy efficiency, integration, and qualification for extended temperature operation.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F101GEAFB#10?
The R5F101GEAFB#10 operates at up to 32 MHz using its high-accuracy on-chip oscillator, delivering 41 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs in high-speed mode, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation. This dual-speed capability allows precise trade-offs between throughput and energy consumption in the R5F101GEAFB#10.
Does the R5F101GEAFB#10 support in-system programming and secure firmware updates?
Yes, the R5F101GEAFB#10 supports full in-system programming via its on-chip debug interface and includes flash shield window and boot swap functions for secure firmware updates. These features allow safe field upgrades without erasing critical data flash contents and prevent unauthorized access to protected code regions - essential capabilities for certified deployments of the R5F101GEAFB#10.
What are the key low-power modes supported by the R5F101GEAFB#10, and what is the typical current draw in each?
The R5F101GEAFB#10 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA; in HALT mode, current is 66 μA/MHz; SNOOZE enables peripheral operation (e.g., UART receive) while CPU sleeps. These modes are hardware-controlled and require no external components - a core differentiator of the R5F101GEAFB#10 for energy-critical designs.
Can the R5F101GEAFB#10 interface directly with 1.8 V or 2.5 V logic without level shifters?
Yes, the R5F101GEAFB#10 supports different-potential interface operation: its I/O ports can be configured to accept 1.8 V, 2.5 V, or 3.0 V input levels while powered from 1.6–5.5 V VDD. This eliminates external level-shifting circuitry for mixed-voltage systems - a verified capability documented in the R5F101GEAFB#10 datasheet Section 1.1 Features and electrical characteristics tables.
What is the ADC configuration of the R5F101GEAFB#10, and does it include internal references?
The R5F101GEAFB#10 integrates a 10-bit successive-approximation ADC with up to 26 input channels and an internal 1.45 V reference voltage source. It also includes an on-die temperature sensor usable with the ADC - both features are factory-calibrated and operational across the full −40°C to +105°C range. This ADC configuration is fully functional in the R5F101GEAFB#10 without external components.
R5F101GEAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
R5F101GEAFB#10 FAQ
1.How can I place an order for R5F101GEAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GEAFB#10 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 R5F101GEAFB#10 reliable?
The price and inventory of R5F101GEAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GEAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F101GEAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GEAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GEAFB#10?
R5F101GEAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GEAFB#10 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 R5F101GEAFB#10?
For technical support, including R5F101GEAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GEAFB#10 requirements.
6.How does Aetrix verify that R5F101GEAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F101GEAFB#10 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 R5F101GEAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F101GEAFB#10?
All R5F101GEAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GEAFB#10, 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 R5F101GEAFB#10 part is unused and in its original packaging.
Return procedure for R5F101GEAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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