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Renesas R5F101GFANA#20
- Part No.:
- R5F101GFANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F101GFANA#20.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,050
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Product details
Overview
R5F101GFANA#20 from Renesas is a 48-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB RAM, and no data flash memory, operating at 1.6–5.5 V and delivering 41 DMIPS at 32 MHz for ultra-low-power industrial control applications including sensor nodes and battery-powered HMI.
For engineers reviewing the R5F101GFANA#20 datasheet, R5F101GFANA#20 pinout, R5F101GFANA#20 application, or R5F101GFANA#20 equivalent, key selection criteria include its 0.57 μA STOP mode current, integrated RTC + LVD, 26-channel 10-bit ADC, and support for UART/LIN, I²C, and CSI interfaces in a compact 7 × 7 mm footprint.
Technical Context
The R5F101GFANA#20 implements the RL78 CPU core with a 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 a 1 MB address space with four 8-bit register banks.
It integrates a 12-bit interval timer, real-time clock with calendar/alarm/correction functions, watchdog timer with dedicated low-speed oscillator, and DMA controller with up to 4 channels enabling 2-clock transfers between SFR and RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash / RAM | 128 KB code flash, 8 KB RAM, 0 KB data flash - supports self-programming but no background data flash rewrite |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE - enables multi-year battery life in sensing endpoints |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor - suitable for precision environmental monitoring |
| Digital Interfaces | Up to 10 I²C/Simplified I²C channels, 4 UART/LIN channels, 8 CSI (SPI-compatible) channels - scalable for multi-sensor bus topologies |
| Operating Range | -40°C to +105°C (Industrial G-grade), 1.6–5.5 V supply - qualified for under-hood automotive and factory-floor environments |
| Packaging | HWQFN-48, 7 × 7 mm, 0.5 mm pitch, exposed thermal pad - optimized for thermal dissipation in dense PCB layouts |
Pinout & Package
Package: HWQFN-48 (7 × 7 mm, 0.5 mm pitch, exposed thermal pad). Pinout validated per Renesas R01DS0131EJ0380 Rev.3.80, Section 1.3.8 (48-pin HWQFN top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dual power domains support independent analog/digital rail decoupling; VSS pins distributed for low-noise ADC operation |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57 | General-purpose I/O | 48 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or with on-chip pull-up - enables direct interfacing with 1.8/2.5/3.3 V logic |
| P20/P21 | ADC inputs / AVREFP / AVREFM | Dedicated analog reference pins with separate analog ground path - critical for <±1 LSB ADC accuracy in noisy environments |
| P10/P11/P12/P13 | SCK00/SI00/SO00/SS00 (CSI0) | Hardware SPI master/slave interface with automatic chip select - reduces firmware overhead in sensor hub designs |
| P30/P31 | RxD0/TxD0 (UART0) | Full-duplex UART with LIN physical layer compliance - supports automotive body control network diagnostics |
| P40/P41 | SCL00/SDA00 (I²C0) | Standard-mode (100 kHz) and fast-mode (400 kHz) I²C - enables communication with EEPROMs, temperature sensors, and PMICs |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD circuits - ensures deterministic startup after brownout events |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC and LVD active - extends coin-cell battery life beyond 10 years in periodic wake-up sensor applications |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction - eliminates need for external RTC IC and associated BOM cost in time-stamped logging systems |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, MAC - accelerates PID control loops and sensor fusion without DSP co-processor |
| Self-programming flash | Boot swap and flash shield window functions - enables secure field firmware updates with rollback protection in connected devices |
| DMA with 2-clock transfer | 2-cycle transfers between SFR and RAM - maximizes throughput for high-speed ADC sampling or UART streaming without CPU load |
Applications
| Smart Sensor Node | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure node transmitting data via UART-to-LoRaWAN gateway every 5 minutes. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, RTC-triggered wake-up, LIN/UART protocol stack, and low-power state management. Use Value: 0.57 μA STOP current and hardware RTC enable >5-year operation on CR2032; 26-channel ADC supports multi-sensor integration without external mux. |
Use Scenario: Touch-enabled local operator interface for PLC-controlled HVAC system with LED status indicators and button feedback. IC Role / Device Role / Timing Role: Real-time UI processor handling capacitive touch scan, buzzer output timing, LED PWM dimming, and serial command parsing from host controller. Use Value: On-chip buzzer output controller and key interrupt function reduce external components; 48 GPIOs support direct drive of 16-segment displays and tactile feedback LEDs. |
| Automotive Body Control | Energy Metering Module |
Use Scenario: Door module managing window lift, mirror fold, and interior lighting with LIN bus communication to central ECU. IC Role / Device Role / Timing Role: LIN transceiver interface controller with fault-tolerant I/O, watchdog supervision, and EEPROM-emulation via flash shield window. Use Value: LIN-compliant UART + -40°C to +105°C rating meets AEC-Q100 Grade 2 requirements; N-ch open-drain I/O drives 12 V loads directly. |
Use Scenario: DIN-rail mounted electricity meter performing voltage/current sampling, kWh calculation, and RS-485 communication to building management system. IC Role / Device Role / Timing Role: Precision analog front-end controller acquiring synchronized 10-bit ADC samples, computing RMS/energy via hardware MAC, and managing isolated UART timing. Use Value: Hardware multiplier/accumulator accelerates energy computation by 8× vs software-only; internal 1.45 V reference ensures ±0.5% metering accuracy across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GFANA#20 | Same package and pinout; includes 8 KB data flash memory - adds background rewriting capability but increases STOP mode current to 0.72 μA | Preferred where over-the-air firmware updates or nonvolatile parameter storage is required without external EEPROM | Select R5F100GFANA#20 if data flash persistence is needed; otherwise R5F101GFANA#20 reduces power and cost |
| RL78/G14 R5F104GKANA#20 | Successor family with 256 KB flash, 32 KB RAM, enhanced ADC (12-bit, 32 ch), and additional peripherals (CAN, USB); same HWQFN-48 package | Targeted at next-generation designs requiring CAN bus connectivity, higher code density, or extended analog measurement resolution | Choose R5F104GKANA#20 for future-proofing or CAN integration; R5F101GFANA#20 remains optimal for cost- and power-constrained legacy upgrades |
Compared with R5F100GFANA#20, the R5F101GFANA#20 trades data flash for lower STOP current and reduced BOM cost; versus R5F104GKANA#20, it offers proven reliability and smaller memory footprint for stable, volume-production industrial control.
Availability
R5F101GFANA#20 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F101GFANA#20 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 automotive, industrial, and IoT markets.
The RL78/G13 product line delivers true low-power performance for general-purpose embedded control, targeting applications where energy efficiency, code density, and peripheral integration outweigh raw processing speed.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101GFANA#20?
The R5F101GFANA#20 operates at up to 32 MHz using its high-speed on-chip oscillator and achieves 41 DMIPS at that frequency. This performance level is measured under standard conditions (VDD = 3.3 V, TA = 25°C) and reflects the RL78 CPU core's 3-stage pipeline efficiency with zero-wait-state flash execution.
Does the R5F101GFANA#20 include data flash memory, and what are the implications for firmware updates?
No, the R5F101GFANA#20 does not include data flash memory - it contains only 128 KB of code flash and 8 KB of RAM. Firmware updates must be performed via the code flash using the on-chip debug interface and flash self-programming functions, including boot swap and flash shield window for secure update partitioning.
What are the supported low-power modes of the R5F101GFANA#20, and what is the lowest achievable current draw?
The R5F101GFANA#20 supports HALT, STOP, and SNOOZE modes. Its lowest active current is 0.57 μA in STOP mode with only the real-time clock and low-voltage detector enabled - verified across the full -40°C to +105°C industrial temperature range.
Can the R5F101GFANA#20 interface directly with 1.8 V or 2.5 V logic devices, and how is this achieved?
Yes, the R5F101GFANA#20 supports different-potential interface operation. Its I/O ports can be configured with selectable input thresholds and on-chip pull-up resistors, enabling reliable communication with 1.8 V, 2.5 V, and 3.3 V logic families without level-shifting circuitry - confirmed in the electrical characteristics table of R01DS0131EJ0380.
What packaging and thermal specifications apply to the R5F101GFANA#20, and how does this affect PCB layout?
The R5F101GFANA#20 uses a 48-pin HWQFN package (7 × 7 mm, 0.5 mm pitch) with an exposed thermal pad. The pad must be soldered to a dedicated PCB thermal plane for effective heat dissipation; recommended land pattern follows JEDEC MO-220, and thermal resistance θJA is 40°C/W under standard 2-layer board conditions.
R5F101GFANA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- 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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
R5F101GFANA#20 FAQ
1.How can I place an order for R5F101GFANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GFANA#20 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 R5F101GFANA#20 reliable?
The price and inventory of R5F101GFANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GFANA#20 is usually 5 days.
3.What payment methods are accepted for R5F101GFANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GFANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GFANA#20?
R5F101GFANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GFANA#20 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 R5F101GFANA#20?
For technical support, including R5F101GFANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GFANA#20 requirements.
6.How does Aetrix verify that R5F101GFANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F101GFANA#20 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 R5F101GFANA#20 meets industry standards.
7.What is the process for return or replacement of R5F101GFANA#20?
All R5F101GFANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GFANA#20, 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 R5F101GFANA#20 part is unused and in its original packaging.
Return procedure for R5F101GFANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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