Renesas R5F101GLAFB#30
- Part No.:
- R5F101GLAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GLAFB#30.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:184
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Product details
Overview
R5F101GLAFB#30 from Renesas is a 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 128 KB flash memory, 8 KB data flash, 12 KB RAM, and operation up to 32 MHz delivering 41 DMIPS - optimized for low-power sensor nodes and motor control in HVAC and industrial automation systems.
For engineers reviewing the R5F101GLAFB#30 datasheet, R5F101GLAFB#30 pinout, R5F101GLAFB#30 application, or R5F101GLAFB#30 equivalent, key selection criteria include its -40°C to +105°C temperature rating (G-grade), absence of on-chip data flash (denoted by "101" prefix), ultra-low power modes (0.57 μA RTC+LVD), and integrated 10-bit ADC with 26 channels.
Technical Context
The R5F101GLAFB#30 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 ultra-low-speed mode). It integrates a real-time clock with calendar function, watchdog timer, and DMA controller with 4 channels.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C interfaces, 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 operating across 1.6–5.5 V supply range.
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 performance at full speed |
| Memory Configuration | 128 KB code flash, 0 KB data flash (R5F101x series), 12 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| Operating Temperature | -40°C to +105°C (G-grade industrial qualification) |
| Analog Peripherals | 10-bit A/D converter with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Digital Interfaces | 3× I²C/Simplified I²C, 4× UART/LIN, 8× CSI (SPI-compatible), 4× DMA channels |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support mixed-voltage I/O (1.8/2.5/3.0 V interface capability) |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports key interrupt |
| P10–P17 | Multi-function port | Includes SCK00/SCL00, SI00/RxD0, SO00/TxD0, and TOOLRxD/SDA00 for debug and serial comms |
| P20–P27 | Analog input port | ANI0–ANI7 with AVREFP/AVREFM reference pins; enables precision sensing without external references |
| RESET | Active-low reset input | Accepts external reset; internally tied to on-chip POR and LVD circuitry |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC; also accepts external clock source |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA retention with RTC + LVD active - enables battery-powered operation for >10 years |
| Self-programmable flash | Code flash supports boot swap and flash shield window; no external programmer required for field updates |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC unit accelerate motor control math |
| Real-time clock (RTC) | Full calendar (99-year), alarm, and clock correction - eliminates need for external RTC IC |
| Multi-voltage I/O | Direct interface to 1.8 V, 2.5 V, or 3.0 V peripherals without level shifters |
| On-chip debug interface | Single-wire debug (SWD) via TOOLRxD/SDA00 pin - reduces debug footprint to one pin |
Applications
| Smart Thermostats | Industrial Motor Drives |
|---|---|
Use Scenario: Compact, battery-backed HVAC control unit requiring precise temperature/humidity sensing and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition (ADC), display driving, RF communication, and RTC-based scheduling. Use Value: Ultra-low STOP current (0.57 μA) extends coin-cell life beyond 5 years; integrated 10-bit ADC with 26 channels eliminates external signal conditioning. |
Use Scenario: Low-cost BLDC motor driver for pumps and fans in factory automation equipment. IC Role / Device Role / Timing Role: Real-time motion controller executing commutation logic, PWM generation, and fault monitoring (LVD, thermal). Use Value: Hardware multiplier and 16-bit timers enable precise 3-phase timing; 128 KB flash accommodates FOC algorithms and safety firmware. |
| Programmable Logic Controllers (PLC) I/O Modules | Energy Metering Subsystems |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU interface. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager interfacing with isolation barriers and RS-485 transceivers. Use Value: Four UART/LIN channels support dual Modbus ports; 48-pin LFQFP provides sufficient routing for opto-isolator control signals. |
Use Scenario: Secondary MCU in smart meters handling tamper detection, LCD refresh, and secure time-stamping. IC Role / Device Role / Timing Role: Trusted timekeeper and event logger using RTC calendar, LVD, and secure flash write protection. Use Value: On-chip RTC with calendar and alarm replaces external DS3231; flash security prevents unauthorized firmware modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GLAFB#30 | Same package and pinout; includes 8 KB data flash (R5F100x series) | Required where background data logging or parameter storage is needed | Select when nonvolatile parameter retention between power cycles is mandatory |
| RL78/G14 R5F104GLAFB#30 | Enhanced RL78/G14 core; adds 32 KB RAM, 256 KB flash, and CAN 2.0B interface | Suitable for CAN-based industrial networks or larger firmware deployments | Choose only if CAN bus connectivity or >12 KB RAM is required - otherwise over-spec'd |
Compared with R5F100GLAFB#30, the R5F101GLAFB#30 trades data flash for lower cost and identical footprint, while the RL78/G14 alternative adds CAN and memory at higher price and power - making R5F101GLAFB#30 optimal for cost-sensitive, flash-only, CAN-free industrial control.
Availability
R5F101GLAFB#30 is available at Aetrix Electronics and suitable for industrial motor drives, smart thermostats, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and G-grade temperature compliance.
Supply support for R5F101GLAFB#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 family targets cost-sensitive, ultra-low-power general-purpose applications - balancing performance, integration, and energy efficiency for battery-operated and thermally constrained industrial systems.
FAQ
What is the flash memory configuration of the R5F101GLAFB#30?
The R5F101GLAFB#30 contains 128 KB of on-chip code flash memory and zero data flash memory - consistent with the "101" series designation indicating no dedicated data flash block. This configuration simplifies firmware updates and reduces cost where parameter storage is handled externally or via code flash emulation.
Does the R5F101GLAFB#30 support hardware debugging?
Yes, the R5F101GLAFB#30 supports single-wire debug (SWD) via the TOOLRxD/SDA00 pin (P11), enabling full on-chip debugging, flash programming, and real-time trace without requiring additional debug headers or pins - critical for space-constrained industrial PCB layouts.
What is the maximum ambient operating temperature for the R5F101GLAFB#30?
The R5F101GLAFB#30 is rated for industrial operation from -40°C to +105°C (G-grade), verified per Renesas specification R01DS0131EJ0380. This makes it suitable for under-hood automotive auxiliary systems, factory-floor controllers, and outdoor-rated equipment without derating.
Can the R5F101GLAFB#30 drive a 32.768 kHz crystal for RTC operation?
Yes, the R5F101GLAFB#30 includes dedicated CLKP/CLKM pins that support external 32.768 kHz crystal connection for high-accuracy real-time clock operation with calendar, alarm, and automatic clock correction - eliminating need for external RTC ICs in time-critical applications.
How many analog input channels does the R5F101GLAFB#30 support?
The R5F101GLAFB#30 supports up to 26 analog input channels (ANI0–ANI25) on its 10-bit A/D converter, with selectable reference sources including internal 1.45 V reference and external AVREFP/AVREFM - enabling direct sensor interfacing without external op-amps or voltage references.
R5F101GLAFB#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:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
R5F101GLAFB#30 FAQ
1.How can I place an order for R5F101GLAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GLAFB#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 R5F101GLAFB#30 reliable?
The price and inventory of R5F101GLAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GLAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F101GLAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GLAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GLAFB#30?
R5F101GLAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GLAFB#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 R5F101GLAFB#30?
For technical support, including R5F101GLAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GLAFB#30 requirements.
6.How does Aetrix verify that R5F101GLAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F101GLAFB#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 R5F101GLAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F101GLAFB#30?
All R5F101GLAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GLAFB#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 R5F101GLAFB#30 part is unused and in its original packaging.
Return procedure for R5F101GLAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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