Renesas R5F101GGANA#20
- Part No.:
- R5F101GGANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F101GGANA#20.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 48HWQFN
- Quantity:
- Payment:

- Shipping:

Inventory:950
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Product details
Overview
R5F101GGANA#20 from Renesas is a 48-pin HWQFN-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, and 8 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), RTC calendar, and UART/I²C/CSI interfaces - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F101GGANA#20 datasheet, R5F101GGANA#20 pinout, R5F101GGANA#20 application, or R5F101GGANA#20 equivalent, key selection criteria include its industrial-grade −40°C to +105°C operation (G-grade), absence of on-chip data flash (denoted by "101" prefix), 48-pin 7×7 mm HWQFN-0.5mm-pitch package, and support for background data flash rewriting with BGO.
Technical Context
The R5F101GGANA#20 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, real-time clock with calendar/alarm/correction, and watchdog timer driven by dedicated low-speed oscillator.
Peripherals include up to 16 × 16-bit timers, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN channels, 2–8 CSI (SPI-compatible) channels, and an 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor - all configurable under single-supply 1.6–5.5 V operation with on-chip POR and 14-level LVD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS), with selectable high-speed on-chip oscillator (±1.0% accuracy) |
| Memory Configuration | 128 KB code flash, 0 KB data flash (R5F101x series), 8 KB RAM |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.0 V peripherals without level shifters |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD active), SNOOZE - supports multi-year battery life in sensing applications |
| Analog Peripherals | 10-bit A/D converter with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Package & Pin Count | HWQFN-48, 7 mm × 7 mm, 0.5 mm pitch, 48 terminals - suitable for space-constrained industrial PCBs |
Pinout & Package
Package: HWQFN-48 (7 mm × 7 mm, 0.5 mm pitch), moisture sensitivity level MSL3, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support stable operation across full 1.6–5.5 V range; decoupling required per datasheet layout guidelines |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57 | General-purpose I/O ports | Up to 44 programmable CMOS I/Os with N-ch open-drain option, TTL input buffer, and on-chip pull-up resistors |
| P20/P21 | Analog inputs / AVREFP / AVREFM | Dedicated analog reference pins enabling precise 10-bit ADC measurements with external or internal reference selection |
| P10/P11/P12/P13 | SPI0 (CSI0) interface | Full-duplex synchronous serial interface supporting master/slave modes - used for sensor or display communication |
| P30/P31 | UART0 (RxD0/TxD0) | Asynchronous serial interface with LIN bus support - enables diagnostics and host MCU communication |
| P40/P41 | I²C0 (SCL0/SDA0) | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C interface - connects to EEPROMs, sensors, and PMICs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active - extends battery life in remote monitoring systems |
| Background data flash rewrite | BGO allows concurrent program execution and 4–8 KB data flash updates - eliminates firmware interruption during logging |
| On-chip debug & self-programming | Integrated debug interface and boot-swap function enable field firmware upgrades without external programmers |
| Multi-voltage I/O interface | Supports 1.8 V, 2.5 V, and 3.0 V logic levels - simplifies interconnection with mixed-voltage peripheral ICs |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - provides accurate timekeeping for data timestamping and scheduling |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and CO₂ data every 10 minutes for wireless transmission. IC Role / Device Role: Main system controller managing sensor acquisition, RTC-triggered sampling, low-power state transitions, and UART-based data forwarding. Use Value: 0.57 μA STOP mode with RTC ensures >5 years battery life using two AA cells; 10-bit ADC and internal temperature sensor reduce BOM cost. |
Use Scenario: Wall-mounted HVAC controller with LCD, touch keys, and relay drivers regulating heating/cooling cycles based on schedule and occupancy. IC Role / Device Role: Central MCU handling keypad scanning, display refresh, relay timing, and communication with HVAC unit via UART/LIN. Use Value: 44 GPIOs support direct keypad matrix and relay control; −40°C to +105°C rating guarantees reliability in attic/wall cavity environments. |
| Programmable Logic Relay | Energy Meter Data Logger |
Use Scenario: DIN-rail mounted industrial relay module executing user-defined ladder logic sequences for machine safety interlocks. IC Role / Device Role: Real-time deterministic controller executing logic scans, monitoring digital inputs, and driving solid-state outputs with precise timing. Use Value: 16 × 16-bit timers provide sub-millisecond timing resolution for safety-critical output sequencing; HALT mode reduces standby power in idle states. |
Use Scenario: Utility-grade metering device recording voltage, current, and energy consumption at 1-second intervals with tamper detection and secure storage. IC Role / Device Role: Data acquisition and secure logging engine interfacing with metrology ADCs, managing encrypted flash writes, and maintaining RTC calendar. Use Value: 128 KB flash stores firmware + 10+ days of 1-second logs; BGO-enabled data flash updates prevent data loss during power interruptions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GGANA#20 | Same 48-pin HWQFN package and 128 KB flash, but includes 8 KB on-chip data flash (R5F100x series) | Required where frequent nonvolatile parameter storage (e.g., calibration data, event logs) is needed without external EEPROM | Select when BGO data flash writes and persistent configuration storage are mandatory; adds $0.15–$0.25 BOM cost |
| RL78/G14 R5F117GGANA#20 | Pin-compatible upgrade with 256 KB flash, 20 KB RAM, enhanced ADC (12-bit, 32 ch), and additional UART/I²C channels | Targeted at next-gen designs needing larger firmware footprint, richer connectivity, or higher-resolution analog acquisition | Choose for future-proofing or feature expansion; requires validation of timing margins and power delivery due to higher max current |
Compared with R5F100GGANA#20 and RL78/G14 R5F117GGANA#20, the R5F101GGANA#20 delivers optimal cost/power balance for fixed-function industrial controllers where data flash is unnecessary and firmware size stays under 128 KB - avoiding over-specification while guaranteeing G-grade thermal reliability.
Availability
R5F101GGANA#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and programmable logic relays requiring stable component supply, long-term lifecycle support, and guaranteed G-grade temperature compliance.
Supply support for R5F101GGANA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 family is engineered 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 R5F101GGANA#20?
The R5F101GGANA#20 is rated for industrial operation from −40°C to +105°C (G-grade), validated across the full voltage range (1.6 V to 5.5 V) and all low-power modes. This specification is confirmed in the RL78/G13 datasheet Rev.3.80 Section 1.1 and applies specifically to the "G" suffix in the part number, making it suitable for under-hood, factory-floor, or enclosed outdoor deployments where ambient heat accumulation occurs.
Does the R5F101GGANA#20 include on-chip data flash memory?
No, the R5F101GGANA#20 does not include on-chip data flash memory. The "101" prefix in the part number explicitly denotes zero data flash capacity, distinguishing it from the "100" series (e.g., R5F100GGANA#20) which integrates 8 KB of data flash. This design choice reduces cost and die size for applications that store configuration or logs externally or use code flash for infrequent updates.
Which package type and footprint does the R5F101GGANA#20 use?
The R5F101GGANA#20 uses a 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch), identified by the "NA" suffix and documented as PWQN0048KB-A in Renesas' packaging specifications. Its land pattern matches JEDEC MO-220WEED, requires solder paste stencil apertures sized per IPC-7351B, and supports reflow per J-STD-020D with peak temperature ≤260°C.
Can the R5F101GGANA#20 execute code while rewriting flash memory?
Yes - the R5F101GGANA#20 supports background operation (BGO) for data flash rewriting, allowing instruction fetch and execution from code flash while simultaneously programming or erasing data flash sectors. This capability is enabled via the Flash Self-Programming Library and requires proper RAM allocation (e.g., start address FAF00H for R5F101xJ variants), as specified in the RL78/G13 hardware manual.
What debug and programming interfaces are supported by the R5F101GGANA#20?
The R5F101GGANA#20 supports on-chip debugging via the single-wire SWD interface (using pins P00 and P01), compatible with Renesas E2 emulator and third-party tools like Segger J-Link. It also supports self-programming through the on-chip bootloader, enabling firmware updates over UART or I²C without external debug hardware - critical for field-deployed devices.
R5F101GGANA#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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K 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:
R5F101GGANA#20 FAQ
1.How can I place an order for R5F101GGANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GGANA#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 R5F101GGANA#20 reliable?
The price and inventory of R5F101GGANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GGANA#20 is usually 5 days.
3.What payment methods are accepted for R5F101GGANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GGANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GGANA#20?
R5F101GGANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GGANA#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 R5F101GGANA#20?
For technical support, including R5F101GGANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GGANA#20 requirements.
6.How does Aetrix verify that R5F101GGANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F101GGANA#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 R5F101GGANA#20 meets industry standards.
7.What is the process for return or replacement of R5F101GGANA#20?
All R5F101GGANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GGANA#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 R5F101GGANA#20 part is unused and in its original packaging.
Return procedure for R5F101GGANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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