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Renesas R5F101GJANA#U0
- Part No.:
- R5F101GJANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F101GJANA#U0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,929
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Product details
Overview
R5F101GJANA#U0 from Renesas is a 48-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 192 KB flash, 8 KB data flash, 16 KB RAM, and industrial-grade operation up to +105°C. It delivers 41 DMIPS at 32 MHz, supports ultra-low-power modes (0.57 μA RTC+LVD), and integrates 12-bit ADC (24 channels), UART/LIN, I²C, SPI, RTC, and DMA for embedded control in battery-powered and harsh-environment applications.
For engineers reviewing the R5F101GJANA#U0 datasheet, R5F101GJANA#U0 pinout, R5F101GJANA#U0 application, or R5F101GJANA#U0 equivalent, key selection criteria include its 48-pin HWQFN-0.5mm package, absence of on-chip data flash (R5F101x series), industrial temperature rating (−40°C to +105°C), and compatibility with Renesas' RL78 toolchain and E2 studio IDE.
Technical Context
The R5F101GJANA#U0 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 low-speed mode). Its memory architecture separates 192 KB code flash (1 KB blocks) from dedicated 16 KB RAM, enabling deterministic real-time operation.
Peripheral integration includes dual UART/LIN interfaces with automatic baud rate detection, three I²C channels supporting standard/fast-mode, eight 16-bit timers with PWM output capability, and a calendar RTC with alarm and clock correction-enabling time-stamped event logging and scheduled wake-up without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 192 KB code flash (1 KB erase blocks); no on-chip data flash (R5F101x series) |
| RAM | 16 KB on-chip RAM for stack, variables, and DMA buffers |
| Operating Voltage | 1.6 V to 5.5 V single supply - enables direct interface with 1.8/2.5/3.3/5 V peripherals |
| Temperature Range | −40°C to +105°C (industrial G-grade) - suitable for under-hood automotive or factory-floor deployment |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD active) - extends battery life in sensor nodes |
| Analog Peripherals | 12-bit A/D converter with 24 input channels and internal 1.45 V reference - eliminates need for external voltage reference |
Pinout & Package
Package: 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; thermal pad must be soldered for thermal performance |
| P00–P07 | Port 0 general-purpose I/O | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports different-potential interface (1.8/2.5/3 V) |
| P10–P17 | Port 1 with serial functions | Multi-function pins supporting SCK00/SCL00, SI00/RxD0, SO00/TxD0, and TOOLRxD - enables debug and dual SPI/I²C use |
| P20–P27 | Analog input port | Includes AVREFP/AVREFM, ANI0–ANI23 - all 24 analog inputs share same 12-bit resolution and reference |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD circuits for reliable power-on initialization |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC; internal oscillator selectable from 1–32 MHz ±1.0% accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swap and flash shield window enable secure firmware updates without external programmer |
| Background data rewriting | Data flash writes occur while executing code - no interrupt latency penalty during parameter storage |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction eliminate need for external RTC IC and calibration effort |
| Hardware DMA controller | 4-channel DMA reduces CPU load during ADC sampling, UART transfers, or memory-to-memory moves |
| On-chip voltage detector | 14-level LVD with configurable interrupt/reset - protects against brown-out in wide-input industrial supplies |
Applications
| Smart Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC, EEPROM logging, RF module interface, and RTC-based billing cycles. Use Value: 192 KB flash stores complex tariff logic and firmware updates; 0.57 μA STOP mode enables >10-year battery life with periodic wake-up. | Use Scenario: Wireless vibration/temperature/humidity node deployed in factory machinery or HVAC ducts. IC Role / Device Role / Timing Role: Data acquisition hub collecting analog/digital sensor data, performing local FFT preprocessing, and scheduling LoRaWAN transmissions. Use Value: 24-channel 12-bit ADC captures multi-sensor data simultaneously; −40°C to +105°C rating ensures reliability near motors or boilers. |
| Home Appliance Control | Automotive Body Controller |
Use Scenario: Washing machine control board managing motor drive, water level sensing, display, and user interface. IC Role / Device Role / Timing Role: Real-time motor timing generator, analog front-end for pressure/temperature feedback, and LIN bus gateway to dashboard. Use Value: Eight 16-bit timers support precise PWM for BLDC motor control; integrated LIN transceiver interface simplifies body network integration. | Use Scenario: Door module controlling window lift, mirror fold, interior lighting, and occupancy detection. IC Role / Device Role / Timing Role: Low-power subsystem controller handling wake-on-LIN, CAN message filtering, and GPIO-driven actuator sequencing. Use Value: HALT mode (66 μA/MHz) minimizes quiescent current; N-ch open-drain I/O drives 12 V loads directly without external level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GJANA#V0 | LQFP-48 package (7 mm × 7 mm, 0.5 mm pitch), same memory/peripheral set, identical G-grade temp range | Requires PCB layout change due to different footprint and thermal pad design | Select #V0 for prototyping with socketed evaluation boards or when manual rework is preferred over QFN reflow |
| R5F100GJANA#U0 | Same 48-pin HWQFN package but includes 8 KB on-chip data flash (R5F100x series) | Better suited for applications requiring frequent non-volatile parameter storage without external EEPROM | Choose #U0 if field-updatable calibration tables or logging history are required; otherwise R5F101GJANA#U0 reduces BOM cost |
Compared with R5F101GJANA#U0, the #V0 variant trades QFN thermal performance for easier assembly, while the R5F100GJANA#U0 adds data flash at higher unit cost-making R5F101GJANA#U0 optimal for cost-sensitive, flash-only firmware deployments in thermally demanding environments.
Availability
R5F101GJANA#U0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F101GJANA#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 automotive, industrial, and IoT markets.
The RL78/G13 product line targets cost-sensitive, ultra-low-power embedded control applications-designed to replace legacy 8-bit MCUs while delivering 16-bit performance, rich peripheral integration, and robust industrial qualification.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101GJANA#U0?
The R5F101GJANA#U0 operates at up to 32 MHz using its high-speed on-chip oscillator and achieves 41 DMIPS (Dhrystone MIPS) at that frequency. This performance level is sustained across its full industrial temperature range (−40°C to +105°C) and supply voltage (1.6 V to 5.5 V), making it suitable for real-time control tasks in demanding environments where consistent throughput matters.
Does the R5F101GJANA#U0 include on-chip data flash memory?
No, the R5F101GJANA#U0 does not include on-chip data flash memory. As indicated by the "101" in its part number (per Renesas' naming convention), this variant provides only code flash (192 KB) and 16 KB RAM. Applications requiring non-volatile parameter storage must use external EEPROM or leverage the code flash with wear-leveling software-unlike the R5F100GJANA#U0, which includes 8 KB of dedicated data flash.
What package type and pin count does the R5F101GJANA#U0 use?
The R5F101GJANA#U0 uses a 48-pin HWQFN (Heat Sink Quad Flat No-lead) package measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed thermal pad. The "NA" in the part number confirms the HWQFN package, and "#U0" denotes tray packaging. This compact, thermally efficient package supports high-density PCB layouts while enabling effective heat dissipation in sealed enclosures.
Which communication interfaces are integrated into the R5F101GJANA#U0?
The R5F101GJANA#U0 integrates multiple serial interfaces: up to four UART/LIN channels (with automatic baud rate detection), up to ten I²C/Simplified I²C channels (supporting standard and fast-mode), and up to eight CSI (Simplified SPI) channels. These interfaces operate concurrently and can be assigned to flexible pin mappings, enabling simultaneous connectivity to displays, sensors, actuators, and diagnostic tools without external bridge ICs.
What low-power modes are supported by the R5F101GJANA#U0, and what is the lowest achievable current draw?
The R5F101GJANA#U0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it draws just 0.57 μA - verified across −40°C to +105°C. This ultra-low quiescent current enables decade-long battery operation in metering and remote monitoring applications, with wake-up via RTC alarm, external interrupt, or serial activity.
R5F101GJANA#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:
- -
- 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:
R5F101GJANA#U0 FAQ
1.How can I place an order for R5F101GJANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GJANA#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 R5F101GJANA#U0 reliable?
The price and inventory of R5F101GJANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GJANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F101GJANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GJANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GJANA#U0?
R5F101GJANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GJANA#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 R5F101GJANA#U0?
For technical support, including R5F101GJANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GJANA#U0 requirements.
6.How does Aetrix verify that R5F101GJANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F101GJANA#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 R5F101GJANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F101GJANA#U0?
All R5F101GJANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GJANA#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 R5F101GJANA#U0 part is unused and in its original packaging.
Return procedure for R5F101GJANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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