Renesas R5F100GJANA#U0
- Part No.:
- R5F100GJANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F100GJANA#U0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100GJANA#U0 from Renesas is a 48-pin HWQFN-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, and 16 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 for embedded control in industrial sensor nodes and battery-powered HMI.
For engineers reviewing the R5F100GJANA#U0 datasheet, R5F100GJANA#U0 pinout, R5F100GJANA#U0 application, or R5F100GJANA#U0 equivalent, key selection criteria include its 48-pin HWQFN (7 × 7 mm, 0.5 mm pitch) package, -40°C to +105°C industrial temperature grade (G suffix), on-chip debug support, and background data flash rewriting capability.
Technical Context
The R5F100GJANA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting variable instruction execution time (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), DMA controller (4 channels), and multiplier/divider unit for 16×16→32-bit and 32÷32 operations.
Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC with alarm/correction, 1× watchdog timer, and serial interfaces: CSI (up to 8 ch), UART/LIN (up to 4 ch), and I²C (up to 10 ch), all configurable via dedicated SFRs and interrupt vectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock | 32 MHz (41 DMIPS); supports ultra-low-speed 32.768 kHz subsystem clock |
| Memory | 128 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 16 KB RAM |
| Power | 1.6–5.5 V supply; 66 μA/MHz active; 0.57 μA in RTC+LVD-only mode |
| Analog | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Timers | 16× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC, 1× watchdog timer |
| Serial | CSI (SPI-like, up to 8 ch), UART/LIN (up to 4 ch), I²C (up to 10 ch) |
Pinout & Package
Package: HWQFN-48 (7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad), RoHS-compliant, rated for -40°C to +105°C operation (G-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support stable operation across 1.6–5.5 V; VSS pins provide low-impedance return paths |
| 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 different-potential interface (1.8/2.5/3 V) |
| P10–P17 | Multiplexed peripheral I/O | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc.; enables flexible peripheral routing |
| P20–P27 | Analog input / reference | ANI0–ANI2, AVREFP/AVREFM; connects to 10-bit ADC inputs and reference voltage sources |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC accuracy or high-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power modes | HALT (CPU stop, peripherals active), STOP (all clocks off except RTC/LVD), SNOOZE (peripheral-triggered wake-up without CPU restart) |
| Data flash BGO | Background operation allows full program execution from code flash while rewriting data flash - no interrupt latency penalty |
| On-chip debug | Fully integrated debug interface with flash shield window and boot swap function for secure firmware updates |
| Temperature sensor | Integrated analog sensor calibrated for system-level thermal monitoring without external components |
| Hardware multiplier | 16×16 signed/unsigned multiply and 16×16+32 accumulate enable efficient motor control and filtering algorithms |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity sensor node with LoRaWAN backhaul and local display. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake-up scheduling, UART communication with transceiver, and low-power state transitions. Use Value: 0.57 μA STOP mode extends 2xAA battery life to >5 years; integrated temperature sensor eliminates external component cost and calibration overhead. |
Use Scenario: Residential HVAC controller with touch interface, environmental sensing, and relay-driven valve/actuator control. IC Role / Device Role / Timing Role: Central MCU handling capacitive touch decoding, 10-bit ADC for thermistor readings, PWM fan control, and I²C display driver interface. Use Value: 26-channel ADC supports multi-zone sensing; hardware CRC and flash shield window ensure secure OTA firmware updates. |
| Programmable Logic Relay | Industrial HMI Panel |
|
Use Scenario: DIN-rail mounted logic relay with configurable I/O, Modbus RTU over RS-485, and non-volatile configuration storage. IC Role / Device Role / Timing Role: Real-time sequencer executing ladder logic via software, managing UART/RS-485 transceiver, and storing user programs in data flash. Use Value: 8 KB data flash with 1M rewrite cycles enables reliable logging and configuration persistence; 41 DMIPS ensures sub-10 ms scan times for 100+ rungs. |
Use Scenario: 4.3″ color TFT panel with resistive touch, CAN bus diagnostics, and local data logging for factory equipment monitoring. IC Role / Device Role / Timing Role: Display controller interfacing with RGB interface and SPI flash, managing touch controller via I²C, and buffering CAN messages in RAM. Use Value: 16 KB RAM accommodates frame buffer and message queue; CSI interface drives SPI flash at 32 MHz for fast UI asset loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GJANA#U0 | No data flash (0 KB); identical core, peripherals, and package | Suitable where firmware updates or parameter storage are handled externally | Select when eliminating data flash reduces BOM cost and security requirements are minimal |
| R5F100GJAFB#V0 | LQFP-48 (7 × 7 mm, 0.5 mm pitch) instead of HWQFN; same memory/peripherals | Better suited for prototyping or manual soldering; slightly larger footprint and higher thermal resistance | Choose for lab validation or legacy PCB compatibility where QFN rework is constrained |
Compared with R5F100GJANA#U0, R5F101GJANA#U0 removes data flash to reduce cost and die size while retaining full functional compatibility for fixed-code deployments, whereas R5F100GJAFB#V0 trades the compact thermal-performance advantage of HWQFN for LQFP's assembly flexibility - both require no firmware changes but differ in layout and lifecycle considerations.
Availability
R5F100GJANA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and programmable logic relays requiring stable component supply, long-term industrial temperature support (-40°C to +105°C), and qualified automotive-grade traceability.
Supply support for R5F100GJANA#U0 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 infrastructure markets.
The RL78/G13 family delivers true low-power embedded control with optimized energy efficiency per DMIPS, targeting cost-sensitive industrial automation, home appliances, and battery-operated IoT edge devices requiring robustness and long product lifecycles.
FAQ
What is the operating temperature range for the R5F100GJANA#U0?
The R5F100GJANA#U0 is rated for industrial operation from -40°C to +105°C, confirmed by its 'G' suffix in the part number and validated in Renesas' official datasheet R01DS0131EJ0380. This rating applies across all specified voltage (1.6–5.5 V) and frequency (up to 32 MHz) conditions, making it suitable for demanding environments like motor control enclosures and outdoor sensor housings.
Does the R5F100GJANA#U0 include an integrated temperature sensor?
Yes, the R5F100GJANA#U0 includes an on-chip temperature sensor usable with the 10-bit ADC. As documented in Section 1.1 Features of the datasheet, it is selectable only in HS (high-speed main) mode and provides calibrated readings referenced to the internal 1.45 V bandgap, enabling system thermal monitoring without external components.
What debug capabilities does the R5F100GJANA#U0 support?
The R5F100GJANA#U0 supports full on-chip debug via the standard Renesas E1/E20 emulator interface, including flash programming, real-time variable watch, and breakpoint control. Its debug features include flash shield window protection and boot swap functionality - both essential for secure field firmware updates and dual-bank reliability.
How many ADC channels does the R5F100GJANA#U0 support?
The R5F100GJANA#U0 supports up to 26 analog input channels for its 10-bit successive-approximation ADC, as specified in the "A/D converter" subsection of Section 1.1 Features. These include dedicated ANI0–ANI2 pins plus multiplexed channels on other port pins, all operating across the full 1.6–5.5 V supply range.
Is the R5F100GJANA#U0 pin-compatible with other RL78/G13 variants in HWQFN-48?
Yes, the R5F100GJANA#U0 shares identical pinout and electrical characteristics with all other RL78/G13 devices in the 48-pin HWQFN package (e.g., R5F100GAANA#U0, R5F100GKANA#U0), as confirmed by the common PWQN0048KB-A package code and unified pin configuration diagrams in the datasheet. Memory and peripheral differences do not affect pin mapping.
R5F100GJANA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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#U0 FAQ
1.How can I place an order for R5F100GJANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GJANA#U0 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#U0 reliable?
The price and inventory of R5F100GJANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GJANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F100GJANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GJANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GJANA#U0?
R5F100GJANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GJANA#U0 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#U0?
For technical support, including R5F100GJANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GJANA#U0 requirements.
6.How does Aetrix verify that R5F100GJANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F100GJANA#U0 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#U0 meets industry standards.
7.What is the process for return or replacement of R5F100GJANA#U0?
All R5F100GJANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GJANA#U0, 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#U0 part is unused and in its original packaging.
Return procedure for R5F100GJANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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