Renesas R5F101GJAFB#30
- Part No.:
- R5F101GJAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GJAFB#30.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:705
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Product details
Overview
R5F101GJAFB#30 from Renesas is a 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 192 KB flash memory, 8 KB data flash, 16 KB RAM, and operation up to 32 MHz delivering 41 DMIPS - optimized for low-power sensor nodes and battery-powered control in HVAC, smart meters, and industrial I/O modules.
For engineers reviewing the R5F101GJAFB#30 datasheet, R5F101GJAFB#30 pinout, R5F101GJAFB#30 application, or R5F101GJAFB#30 equivalent, key selection criteria include its 1.6–5.5 V supply range, ultra-low power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock with calendar/alarm, and LIN-capable UART interfaces.
Technical Context
The R5F101GJAFB#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip debug, self-programming flash with boot swap and shield window functions, and background operation for data flash rewriting.
Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with calendar and clock correction, 1× watchdog timer, 2–4-channel DMA, and serial interfaces: 2–8 CSI (SPI-compatible), 2–4 UART/LIN, and 3–10 I²C channels - all mapped to its 48-pin LFQFP package with 37 general-purpose I/O pins.
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 / Performance | 32 MHz / 41 DMIPS - enables real-time control loops at sub-100 ns timing resolution |
| Memory | 192 KB code flash + 8 KB data flash + 16 KB RAM - supports firmware updates and parameter logging without external storage |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE - extends battery life in intermittent-sensing applications |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor - eliminates need for external references in thermal monitoring |
| Serial Interfaces | 2× UART/LIN, 3× I²C, 2× CSI - provides native support for sensor fusion, actuator control, and automotive-grade communication |
| Operating Temp | −40°C to +105°C (Industrial G-grade) - qualified for deployment in motor drives and factory automation environments |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), 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 |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67 | General-purpose I/O | 37 programmable GPIOs with N-ch open-drain, TTL input, and pull-up options - enables direct interfacing with 1.8/2.5/3.3 V peripherals |
| P10/SCK00/SCL00, P11/SI00/RxD0/TOOLRxD/SDA00, P12/SO00/TxD0/TOOLTxD | CSI0 / UART0 / I²C0 | Shared pins support flexible peripheral assignment - e.g., UART0 used for LIN diagnostics while CSI0 handles SPI sensor reads |
| P20/ANI0/AVREFP, P21/ANI1/AVREFM | Analog inputs / ADC reference | Dedicated AVREFP/AVREFM pins allow precise ratiometric measurement independent of VDD fluctuations |
| RTC_IN, RTC_OUT | Real-time clock oscillator | Connects to 32.768 kHz crystal - enables calendar-based wake-up and time-stamped event logging |
| RESET, NMIX | Reset and NMI inputs | Hardware reset with POR and LVD (14-level selectable); NMIX supports external fault detection interrupt |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA with RTC and LVD active - enables multi-year battery life in wireless sensor endpoints |
| Data flash BGO | Background operation allows concurrent program execution and 1 M-cycle endurance data logging |
| On-chip debug interface | Fully integrated with Renesas E2 emulator - eliminates need for external debug headers in production PCBs |
| LIN-capable UART | UART0 supports LIN 2.2 physical layer timing - simplifies integration into automotive body electronics networks |
| Temperature sensor | Integrated analog sensor calibrated across −40°C to +105°C - reduces BOM cost in thermal protection circuits |
Applications
| Smart Thermostat Control | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Local temperature/humidity sensing, display driving, and HVAC valve actuation in residential and commercial thermostats. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, PID loop execution, user interface, and relay/valve outputs. Use Value: 192 KB flash accommodates complex UI logic and firmware updates; 10-bit ADC with 26 channels supports multi-sensor fusion without external muxing. | Use Scenario: Monitoring motor current, temperature, and encoder feedback in BLDC/PMSM drives for pumps, fans, and conveyors. IC Role / Device Role / Timing Role: Real-time peripheral coordinator handling ADC sampling, PWM sync, fault detection, and CAN/LIN communication. Use Value: 41 DMIPS performance ensures deterministic 100 μs control loop execution; −40°C to +105°C rating matches motor ambient conditions. |
| Energy Meter Data Logger | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Capturing voltage/current waveforms, computing kWh, storing tariff data, and communicating via RS-485 or NB-IoT modem. IC Role / Device Role / Timing Role: Metering engine with precision ADC, RTC timestamping, and secure flash-based data retention. Use Value: 8 KB data flash enables 10+ years of hourly energy logs; RTC calendar/alarm supports time-of-use billing and scheduled wake-ups. | Use Scenario: Digital input conditioning, LED status indication, and fieldbus interface (e.g., Modbus RTU over UART) in DIN-rail mounted I/O expansion modules. IC Role / Device Role / Timing Role: Isolated digital I/O manager with fast GPIO response, debounce logic, and protocol offload. Use Value: 37 GPIOs with configurable pull-up/down and open-drain drive simplify discrete input/output circuitry; LIN-capable UART reduces external transceiver count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GJAFB#50 | Same die, embossed tape packaging (vs. tray #30); identical electrical specs and pinout | No functional difference - selected for automated SMT line compatibility | Choose #50 for high-volume pick-and-place assembly; #30 preferred for prototyping and low-volume builds |
| R5F101GKAFB#30 | 256 KB flash + 8 KB data flash + 20 KB RAM - larger memory footprint in same 48-pin LFQFP package | Better suited for applications requiring larger firmware images or extended data buffering (e.g., OTA update staging) | Select when future firmware growth or dual-bank flash updates are required; otherwise R5F101GJAFB#30 offers optimal cost/performance balance |
Compared with R5F101GJAFB#50 and R5F101GKAFB#30, the R5F101GJAFB#30 delivers the best trade-off of memory capacity, ultra-low power operation, and industrial temperature range in a standard tray-packaged 48-pin LFQFP - making it ideal for cost-sensitive, battery-aware industrial control designs where 192 KB flash suffices.
Availability
R5F101GJAFB#30 is available at Aetrix Electronics and suitable for smart thermostat control, industrial motor drive interface, and energy meter data logging requiring stable component supply across long product lifecycles.
Supply support for R5F101GJAFB#30 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 delivers true low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and thermally constrained industrial and consumer control systems - emphasizing energy efficiency, integrated peripherals, and robust qualification.
FAQ
What is the maximum operating frequency and performance of the R5F101GJAFB#30?
The R5F101GJAFB#30 operates at up to 32 MHz and delivers 41 DMIPS. Its RL78 CPU core achieves this with a 3-stage pipeline and supports variable instruction timing - from 0.03125 μs in high-speed mode to 30.5 μs in ultra-low-speed 32.768 kHz mode - enabling both high-throughput control and deep-sleep power optimization within the same R5F101GJAFB#30 device.
Does the R5F101GJAFB#30 include an integrated temperature sensor?
Yes, the R5F101GJAFB#30 includes an on-chip temperature sensor usable in HS (high-speed main) mode. It is factory-calibrated across the full −40°C to +105°C industrial range and provides direct ADC readings - eliminating external sensors in thermal monitoring applications such as motor overtemperature protection or ambient condition awareness in the R5F101GJAFB#30-based design.
What power-saving modes does the R5F101GJAFB#30 support, and what are their typical current draws?
The R5F101GJAFB#30 supports HALT (66 μA/MHz), STOP (0.57 μA with RTC and LVD active), and SNOOZE modes. In STOP mode, only the real-time clock and low-voltage detector remain powered - enabling multi-year battery operation in intermittent-sensing applications. All modes retain RAM content and allow wake-up via external interrupt, RTC alarm, or LVD event, ensuring deterministic recovery in the R5F101GJAFB#30 system.
Is the R5F101GJAFB#30 pin-compatible with other RL78/G13 variants in the 48-pin LFQFP package?
Yes, all RL78/G13 devices in the 48-pin LFQFP package - including R5F101GJAFB#30, R5F101GKAFB#30, and R5F100GJAFB#30 - share identical pinouts and mechanical footprints. This allows hardware reuse across memory variants and data-flash-enabled versions, simplifying platform scaling and reducing layout iterations when migrating between R5F101GJAFB#30 and compatible family members.
What development tools are supported for the R5F101GJAFB#30?
The R5F101GJAFB#30 is fully supported by Renesas' CS+ IDE, e² studio (Eclipse-based), and the Renesas Flash Programmer. Hardware debugging uses the on-chip debug interface compatible with the E2 emulator Lite or full E2 emulator - no external JTAG adapter required. Example projects, driver libraries, and RL78/G13-specific BSPs are available from Renesas' official website for rapid R5F101GJAFB#30 firmware development.
R5F101GJAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- 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:
- -
- 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:
R5F101GJAFB#30 FAQ
1.How can I place an order for R5F101GJAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GJAFB#30 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 R5F101GJAFB#30 reliable?
The price and inventory of R5F101GJAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GJAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F101GJAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GJAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GJAFB#30?
R5F101GJAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GJAFB#30 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 R5F101GJAFB#30?
For technical support, including R5F101GJAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GJAFB#30 requirements.
6.How does Aetrix verify that R5F101GJAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F101GJAFB#30 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 R5F101GJAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F101GJAFB#30?
All R5F101GJAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GJAFB#30, 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 R5F101GJAFB#30 part is unused and in its original packaging.
Return procedure for R5F101GJAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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