Renesas R5F101GCAFB#30
- Part No.:
- R5F101GCAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GCAFB#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,043
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Product details
Overview
R5F101GCAFB#30 from Renesas is a 48-pin LFQFP-packaged RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, and 12 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock, and UART/I²C/CSI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101GCAFB#30 datasheet, R5F101GCAFB#30 pinout, R5F101GCAFB#30 application, or R5F101GCAFB#30 equivalent, key selection criteria include its 48-pin LFQFP-0.5mm package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for background data flash rewriting via BGO.
Technical Context
The R5F101GCAFB#30 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 subsystem clock). It integrates a 12-bit interval timer, calendar-based real-time clock with alarm and correction, and watchdog timer powered by dedicated low-speed oscillator.
Its peripheral set includes up to 16× 16-bit timers, 3–10-channel I²C/Simplified I²C, 2–4-channel UART/LIN, 2–8-channel CSI, 8–26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, and DMA controller with 2/4 channels supporting 2-clock transfers between SFR and RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with low gate count and power efficiency. |
| Max Operating Frequency | 32 MHz (41 DMIPS); delivers sufficient throughput for sensor fusion and protocol stack execution in constrained edge nodes. |
| Flash Memory | 128 KB code flash (1 KB block size); supports secure erase/write prohibition and boot swap for robust firmware updates. |
| Data Flash | None (R5F101x series); eliminates data retention risk in cost-sensitive applications where EEPROM emulation is unnecessary. |
| RAM Size | 12 KB on-chip RAM; accommodates RTOS stacks, communication buffers, and real-time control variables without external memory. |
| Supply Voltage Range | 1.6 V to 5.5 V; enables direct interface with Li-ion, alkaline, or USB-powered systems without LDO overhead. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD); extends battery life in always-on monitoring devices beyond 10 years. |
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; decoupling required per Renesas layout guidelines. |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3.0 V logic interfacing. |
| P10/P11 | SPI clock/data (CSI00) | Shared with SCL00/SDA00; enables hardware SPI or I²C master/slave without GPIO bit-banging overhead. |
| P20–P27 | Analog inputs (ANI0–ANI7) | 8-channel subset of 26-channel ADC; includes AVREFP/AVREFM for precision ratiometric measurements. |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for fail-safe initialization. |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy; internal oscillator selectable for zero-component clocking. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active enables decade-long coin-cell operation in remote sensors. |
| Self-programmable flash | Boot swap and flash shield window functions allow safe field firmware updates without erasing critical parameters. |
| Background data operations | BGO permits concurrent program execution and data flash rewrite - essential for logging without interrupt latency. |
| Integrated analog subsystem | 10-bit ADC with internal 1.45 V reference and temperature sensor reduces BOM count and calibration complexity. |
| Multi-protocol serial interface | Hardware UART (LIN-capable), I²C, and CSI eliminate software UART timing constraints in multi-sensor networks. |
Applications
| Smart Energy Meters | Industrial Sensor Nodes |
|---|---|
Use Scenario: Solid-state electricity meters measuring voltage, current, and power factor with tamper detection and secure firmware updates. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and DLMS/COSEM protocol stack over UART/LIN. Use Value: 128 KB flash stores dual firmware images; STOP-mode RTC maintains time during mains loss; 1.6–5.5 V range accepts wide-input DC-DC output. |
Use Scenario: Wireless vibration/temperature transmitters in predictive maintenance systems with local edge analytics. IC Role / Device Role / Timing Role: Real-time acquisition hub aggregating analog/digital sensor data, performing FFT preprocessing, and scheduling BLE/Wi-SUN transmissions. Use Value: 41 DMIPS handles lightweight ML inference; HALT mode cuts active power to 2.1 μA/MHz during idle; 26 ADC channels support multi-sensor analog front-end. |
| Home Automation Controllers | Medical Wearables |
Use Scenario: Battery-powered HVAC controllers with touch interface, environmental sensing, and Zigbee/Thread radio coexistence. IC Role / Device Role / Timing Role: Central coordinator managing capacitive touch scan, I²C sensor reads, and radio interrupt prioritization via nested vector interrupts. Use Value: On-chip key interrupt and buzzer output reduce external components; 0.65-mm pitch LSSOP-compatible footprint allows compact PCB design. |
Use Scenario: ECG/PPG patch monitors requiring clinical-grade signal integrity, motion artifact compensation, and 7-day battery life. IC Role / Device Role / Timing Role: Analog front-end controller synchronizing ADC sampling, digital filtering, and encrypted Bluetooth LE packet transmission. Use Value: Internal 1.45 V reference ensures stable ADC LSB across battery discharge; STOP-mode RTC timestamps events with ±1 ppm drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GCAFB#30 | Includes 8 KB data flash; same 128 KB code flash, 12 KB RAM, and peripherals. | Required where EEPROM-like nonvolatile parameter storage is needed without external IC. | Select when field-updatable calibration tables or device configuration must persist independently of code flash. |
| RL78/G14 R5F104GCAFB#30 | Enhanced RL78/G14 core; adds 32 KB data flash, 24 KB RAM, and CAN 2.0B interface. | Targeted at automotive body electronics and industrial networks requiring CAN bus integration. | Choose only if CAN physical layer support and larger data retention capacity justify higher cost and BOM change. |
Compared with R5F101GCAFB#30, R5F100GCAFB#30 provides embedded data flash for parameter storage but increases standby current slightly; RL78/G14 offers CAN and expanded memory but requires PCB redesign and new qualification.
Availability
R5F101GCAFB#30 is available at Aetrix Electronics and suitable for smart energy meters, industrial sensor nodes, home automation controllers, and medical wearables requiring stable component supply across extended production lifecycles.
Supply support for R5F101GCAFB#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, and power solutions for industrial, automotive, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated general-purpose applications including metering, sensing, and appliance control.
FAQ
What is the operating temperature range for the R5F101GCAFB#30?
The R5F101GCAFB#30 is rated for industrial operation from –40°C to +85°C (D-grade), validated across full voltage (1.6–5.5 V) and frequency (0–32 MHz) ranges per Renesas specification R01DS0131EJ0380. This makes R5F101GCAFB#30 suitable for deployment in uncontrolled environments such as outdoor utility enclosures or factory-floor sensor housings without thermal derating.
Does the R5F101GCAFB#30 include on-chip data flash memory?
No, the R5F101GCAFB#30 does not include on-chip data flash memory - it belongs to the R5F101x series, which omits data flash to reduce cost and die size. The R5F100x series (e.g., R5F100GCAFB#30) provides 8 KB data flash. R5F101GCAFB#30 relies on code flash sectors or external EEPROM for nonvolatile parameter storage.
Which package type and pin pitch does the R5F101GCAFB#30 use?
The R5F101GCAFB#30 uses a 48-pin LFQFP package (7 mm × 7 mm body) with 0.5 mm pin pitch, identified by the "FB" suffix in the part number. This package is compatible with standard QFP reflow profiles and supports automated optical inspection (AOI) due to gull-wing lead geometry - confirmed in Renesas packaging specification PLQP0048KF-A.
Can the R5F101GCAFB#30 operate from a single 3.3 V supply?
Yes, the R5F101GCAFB#30 operates reliably across 1.6 V to 5.5 V, including nominal 3.3 V systems. At 3.3 V and 32 MHz, it achieves full 41 DMIPS performance with typical current draw of 2.1 mA/MHz in active mode - verified in Section 1.1 of the R01DS0131EJ0380 datasheet under "VDD = 1.6 to 5.5 V" conditions.
What debug interface does the R5F101GCAFB#30 support?
The R5F101GCAFB#30 supports on-chip debugging via the single-wire debug (SWD) interface using the BKGD pin, compliant with Renesas E1/E20 emulators. It does not support JTAG. Debug features include full break/watchpoint capability, flash programming, and real-time variable monitoring - documented in Section 22.3 ("On-chip Debug Function") of R01DS0131EJ0380.
R5F101GCAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101GCAFB#30 FAQ
1.How can I place an order for R5F101GCAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GCAFB#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 R5F101GCAFB#30 reliable?
The price and inventory of R5F101GCAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GCAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F101GCAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GCAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GCAFB#30?
R5F101GCAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GCAFB#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 R5F101GCAFB#30?
For technical support, including R5F101GCAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GCAFB#30 requirements.
6.How does Aetrix verify that R5F101GCAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F101GCAFB#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 R5F101GCAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F101GCAFB#30?
All R5F101GCAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GCAFB#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 R5F101GCAFB#30 part is unused and in its original packaging.
Return procedure for R5F101GCAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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