Renesas R5F100GJANA#20
- Part No.:
- R5F100GJANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F100GJANA#20.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48HWQFN
- Quantity:
- Payment:

- Shipping:

Inventory:700
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Product details
Overview
R5F100GJANA#20 from Renesas is a 48-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 192 KB flash, 8 KB data flash, and 16 KB RAM, operating from 1.6–5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), and integrated real-time clock for battery-powered industrial control and sensor interface applications.
For engineers reviewing the R5F100GJANA#20 datasheet, R5F100GJANA#20 pinout, R5F100GJANA#20 application, or R5F100GJANA#20 equivalent, key selection criteria include its 48-pin HWQFN-0.5mm package, industrial-grade -40°C to +105°C operation (G-grade), on-chip debug support, BGO-capable data flash rewrite, and hardware multiplier/divider for deterministic control loop execution.
Technical Context
The R5F100GJANA#20 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates dual-clock domains: high-speed main system clock (up to 32 MHz) and independent low-speed subsystem clock for RTC and LVD monitoring.
Its peripheral set includes 8-channel 16-bit timers, 3-channel I²C/Simplified I²C, 2–4 channel UART/LIN, 2–8 channel CSI (SPI-compatible), 12-bit interval timer, watchdog timer with dedicated oscillator, and DMA controller with 2/4 channels enabling zero-wait-state transfers between SFR and RAM in just 2 clocks.
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 | 192 KB code flash (1 KB blocks), 8 KB data flash with background operation (BGO), 16 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Operating Temperature | -40°C to +105°C (industrial G-grade qualification) |
| Supply Voltage Range | 1.6 V to 5.5 V single-supply operation, compatible with 1.8/2.5/3.0 V logic interfaces |
Pinout & Package
Package: 48-pin HWQFN (7 × 7 mm, 0.5-mm pitch), exposed thermal pad, 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 rail decoupling; supports single 1.6–5.5 V supply |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports key interrupt and clock output |
| P10–P17 | SPI/I²C/UART multiplexed pins | Shared SCK00/SCL00, SI00/RxD0, SO00/TxD0, SS00/SDA00 enable flexible serial interface routing |
| P20–P27 | Analog input / reference pins | ANI0–ANI7 with AVREFP/AVREFM support precise 10-bit ADC measurements across full VDD range |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator inputs | Support external 32.768 kHz crystal for RTC; also accepts CMOS clock input |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention current enables multi-year battery life in metering and sensor nodes |
| Data flash BGO | Allows full CPU execution from program memory while rewriting 8 KB data flash-no interrupt latency penalty |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations execute in fixed cycles for deterministic motor control |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction eliminate need for external RTC IC in time-stamped logging systems |
| On-chip debug interface | Fully integrated FINE v2 debug circuit enables non-intrusive breakpoints, trace, and flash programming via single-pin SWD |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and secure data logging. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC timestamping, secure flash storage, and optical/IR communication. Use Value: 192 KB flash stores firmware + encrypted usage logs; 8 KB BGO data flash enables seamless over-the-air updates without service interruption. | Use Scenario: Wireless temperature/humidity/pressure node in factory automation or HVAC monitoring. IC Role / Device Role / Timing Role: Sensor fusion hub acquiring analog inputs, performing local compensation, and scheduling low-power BLE/Wi-SUN transmissions. Use Value: 0.57 μA STOP mode extends AA battery life beyond 5 years; integrated temperature sensor reduces BOM cost by eliminating discrete sensor. |
| Home Appliance Control | Medical Diagnostic Device |
Use Scenario: Washing machine or refrigerator MCU handling motor drive, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time motor control unit executing PID loops via hardware MAC, managing touch UI, and enforcing thermal shutdown. Use Value: 41 DMIPS at 32 MHz ensures sub-100 μs control cycle; 16 KB RAM buffers sensor history and fault logs for diagnostics. | Use Scenario: Portable blood glucose monitor or ECG front-end requiring precision analog acquisition and secure data export. IC Role / Device Role / Timing Role: Analog signal conditioner and secure data processor with calibrated 10-bit ADC, LVD supervision, and encrypted flash storage. Use Value: ±1.0% oscillator accuracy meets ISO 13485 timing requirements; on-chip 1.45 V reference guarantees consistent ADC linearity across battery discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GJANA#20 | No data flash (0 KB); identical core, peripherals, and package | Not suitable for field-upgradable firmware or parameter storage requiring nonvolatile retention | Select when boot code is immutable and configuration is stored externally or in external EEPROM |
| R5F100GJAFB#V0 | LQFP-48 (7×7 mm, 0.5-mm pitch) instead of HWQFN; same memory/peripherals | Requires PCB redesign due to different footprint, thermal pad, and pinout; better for prototyping or manual assembly | Choose for lab validation or low-volume production where QFN reflow capability is unavailable |
Compared with R5F100GJANA#20, R5F101GJANA#20 removes data flash to reduce cost and die size but sacrifices in-field firmware update capability, while R5F100GJAFB#V0 retains full functionality in a more manufacturable LQFP package at the expense of board area and thermal performance.
Availability
R5F100GJANA#20 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 extended temperature ranges and long product lifecycles.
Supply support for R5F100GJANA#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 delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained applications requiring robust analog integration and long-term reliability.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F100GJANA#20?
The R5F100GJANA#20 operates at up to 32 MHz with a measured performance of 41 DMIPS. This is achieved using the high-speed on-chip oscillator, which maintains ±1.0% accuracy across 1.8–5.5 V and -40°C to +105°C. The RL78 core's 3-stage pipeline and efficient instruction set deliver deterministic execution critical for real-time control tasks in the R5F100GJANA#20.
Does the R5F100GJANA#20 support background data flash rewriting while executing application code?
Yes, the R5F100GJANA#20 supports Background Operation (BGO) for its 8 KB data flash memory. This allows the CPU to execute instructions from program memory concurrently with data flash erase/write operations-enabling seamless firmware updates, parameter storage, and logging without halting real-time functions. BGO is fully supported in the R5F100GJANA#20's flash library and requires no external hardware.
What is the industrial temperature grade and supply voltage range specified for the R5F100GJANA#20?
As indicated by the 'G' suffix in its part number, the R5F100GJANA#20 is qualified for industrial operation from -40°C to +105°C. Its supply voltage range is 1.6 V to 5.5 V, supporting direct connection to common battery chemistries (Li-ion, alkaline, NiMH) and compatibility with 1.8 V, 2.5 V, and 3.0 V logic interfaces-making it suitable for ruggedized R5F100GJANA#20 deployments.
How many analog input channels and what ADC resolution does the R5F100GJANA#20 provide?
The R5F100GJANA#20 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25), configurable across multiple I/O ports. It includes an internal 1.45 V reference voltage and an integrated temperature sensor usable in HS mode. This ADC operates across the full 1.6–5.5 V VDD range, delivering consistent linearity and offset performance essential for sensor conditioning in the R5F100GJANA#20.
What debug interface does the R5F100GJANA#20 use, and is on-chip debug supported?
The R5F100GJANA#20 features Renesas' FINE v2 on-chip debug interface, accessible via a single-pin SWD (Serial Wire Debug) connection. Full debug capabilities-including breakpoints, watchpoints, memory inspection, and flash programming-are supported without requiring external debug probes beyond standard JTAG/SWD adapters. This integrated debug solution is enabled by default in the R5F100GJANA#20 and requires no additional hardware or licensing.
R5F100GJANA#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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K 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:
R5F100GJANA#20 FAQ
1.How can I place an order for R5F100GJANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GJANA#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 R5F100GJANA#20 reliable?
The price and inventory of R5F100GJANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GJANA#20 is usually 5 days.
3.What payment methods are accepted for R5F100GJANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GJANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GJANA#20?
R5F100GJANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GJANA#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 R5F100GJANA#20?
For technical support, including R5F100GJANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GJANA#20 requirements.
6.How does Aetrix verify that R5F100GJANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F100GJANA#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 R5F100GJANA#20 meets industry standards.
7.What is the process for return or replacement of R5F100GJANA#20?
All R5F100GJANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GJANA#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 R5F100GJANA#20 part is unused and in its original packaging.
Return procedure for R5F100GJANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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