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Renesas R5F101GAAFB#10
- Part No.:
- R5F101GAAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GAAFB#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
R5F101GAAFB#10 from Renesas is a 48-pin LFQFP-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, and 12 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 - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101GAAFB#10 datasheet, R5F101GAAFB#10 pinout, R5F101GAAFB#10 application, or R5F101GAAFB#10 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade ('A' suffix), and support for background data flash rewriting via BGO.
Technical Context
The R5F101GAAFB#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting variable instruction execution time (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz) and 1 MB address space. It integrates dual-clock domain operation: high-speed main system clock (up to 32 MHz) and independent subsystem clock (32.768 kHz) for RTC and LVD monitoring.
Its peripheral set includes eight 16-bit timers, one 12-bit interval timer, one calendar-capable RTC with alarm/correction, 2–4 DMA channels, 16×16-bit multiply/32-bit divide/MAC unit, and three I²C/Simplified I²C channels - all optimized for deterministic real-time control in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 41 DMIPS @ 32 MHz |
| Memory Configuration | 128 KB code flash (1 KB block size), no on-chip data flash (R5F101x series), 12 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| Operating Voltage & Temp | 1.6 V to 5.5 V supply; -40°C to +85°C ambient (industrial 'A' grade) |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Communication Interfaces | 2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, 2–8 CSI (SPI-compatible) channels |
| Package & Pin Count | 48-pin LFQFP, 7 mm × 7 mm, 0.5 mm pitch, lead-free (Pb-free) RoHS-compliant |
Pinout & Package
Package: 48-pin LFQFP (PLQP0048KF-A), 7 mm × 7 mm body, 0.5 mm pitch, exposed pad not present, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports single-supply 1.6–5.5 V operation |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57 | General-purpose I/O ports | 48 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V level shifting |
| P10/P11/P12/P13 | CSI0 serial interface | Hardware SPI master/slave (SCK00/SI00/SO00/SS00); enables fast sensor/flash communication without CPU overhead |
| P14/P15/P16/P17 | I²C0 interface | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C; supports multi-master arbitration and slave addressing |
| P30/P31 | UART0 (TXD0/RXD0) | Full-duplex asynchronous serial; LIN bus compliant; supports automatic sync-break detection and wakeup |
| P20/P21 | ADC analog inputs + AVREFP/AVREFM | Dedicated analog voltage reference pins enable precise ratiometric ADC measurements across full VDD range |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention current with RTC + LVD active - enables >10-year battery life in coin-cell-powered endpoints |
| Background Data Flash Rewrite (BGO) | Execute code from flash while rewriting data flash; eliminates interrupt latency during firmware parameter updates |
| On-chip debug & self-programming | Full on-chip debug via single-wire SWD; boot swap and flash shield window prevent unauthorized reprogramming |
| Multi-clock domain operation | Independent high-speed (32 MHz) and low-speed (32.768 kHz) clocks allow concurrent real-time control and timekeeping |
| Integrated temperature sensor | Factory-calibrated ±2°C accuracy over -40°C to +85°C; usable for thermal compensation without external components |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, tamper detection, and RF/PLC communication. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing EEPROM-less parameter storage in data flash, and synchronizing sampling to line frequency via RTC. Use Value: 128 KB flash accommodates dual-application firmware (metering + comms stack); 0.57 μA STOP mode extends lithium-thionyl chloride battery life beyond 15 years. |
Use Scenario: Wireless vibration/temperature/humidity node in predictive maintenance systems, powered by energy harvesting or AA batteries. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating ADC, I²C, and UART data; schedules wake-up, measurement, processing, and BLE transmission using SNOOZE mode. Use Value: Integrated 10-bit ADC with 26 channels and internal temperature sensor eliminate external signal conditioning; BGO enables seamless OTA parameter updates. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: MCU in washing machine control board managing motor drive, water level sensing, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time executor of PID motor control loops, ADC-based current/voltage monitoring, and key interrupt-driven UI response. Use Value: 41 DMIPS at 32 MHz ensures sub-millisecond loop timing; multiple UART/I²C channels simplify integration with display, inverter, and sensor modules. |
Use Scenario: Distributed HVAC controller in commercial buildings, interfacing with thermostats, dampers, and CO₂ sensors via RS-485 and I²C. IC Role / Device Role / Timing Role: Protocol gateway translating Modbus RTU to local I²C sensor reads; RTC maintains schedule-based zone control independent of network uptime. Use Value: Dual UARTs support simultaneous RS-485 master/slave operation; 12 KB RAM buffers large Modbus transaction payloads without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GAAFB#10 | Includes 4 KB data flash; same 128 KB code flash, 12 KB RAM, and identical pinout/package | Required where field-updatable calibration tables or logging data must be stored independently of program flash | Select when non-volatile parameter storage beyond code flash is mandatory; retains full software compatibility |
| R5F101GAGFB#10 | Same R5F101x series but rated for -40°C to +105°C ('G' grade); otherwise identical specs and pinout | Necessary for under-hood automotive or high-ambient industrial environments exceeding +85°C | Choose for extended temperature deployments; drop-in replacement with no firmware or layout changes |
Compared with R5F101GAAFB#10, R5F100GAAFB#10 adds data flash for robust parameter storage without increasing footprint, while R5F101GAGFB#10 extends thermal reliability to +105°C - enabling design reuse across consumer, industrial, and harsh-environment variants with minimal qualification effort.
Availability
R5F101GAAFB#10 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F101GAAFB#10 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 enterprise applications.
The RL78/G13 family delivers true low-power performance for general-purpose embedded control, targeting cost-sensitive, battery-operated, and thermally constrained applications where efficiency, integration, and toolchain maturity are critical.
FAQ
What is the flash memory configuration of the R5F101GAAFB#10?
The R5F101GAAFB#10 contains 128 KB of on-chip code flash memory organized in 1 KB blocks, with no integrated data flash (R5F101x series designation confirms this). It supports flash shield window and boot swap functions for secure firmware updates. The R5F101GAAFB#10 uses the same flash controller and programming algorithm as other RL78/G13 devices, enabling consistent toolchain usage across the family.
Does the R5F101GAAFB#10 support background data flash rewriting?
No - the R5F101GAAFB#10 does not include on-chip data flash memory, so background rewriting (BGO) is not applicable. BGO is only available on R5F100x series parts (e.g., R5F100GAAFB#10) that integrate 4 KB or more of dedicated data flash. The R5F101GAAFB#10 relies on code flash for all non-volatile storage, with erase/write operations halting CPU execution unless managed via careful state partitioning.
What is the operating temperature range for the R5F101GAAFB#10?
The R5F101GAAFB#10 is rated for industrial operation from -40°C to +85°C, indicated by the 'A' suffix in its part number per Renesas' RL78/G13 ordering convention. This distinguishes it from 'G'-grade variants (e.g., R5F101GAGFB#10) qualified to +105°C. The R5F101GAAFB#10 meets JEDEC JESD47 reliability standards for this temperature range and is suitable for enclosed industrial enclosures and consumer white goods.
Which development tools support the R5F101GAAFB#10?
The R5F101GAAFB#10 is fully supported by Renesas' CS+ IDE, e² studio (with GCC RL78 toolchain), and the E2 emulator Lite. Hardware evaluation is enabled via the YRDKRL78G13 kit, which maps all 48 pins of the R5F101GAAFB#10 to headers and includes onboard debugging, power regulation, and example firmware. The R5F101GAAFB#10 shares the same debug interface (SWD) and memory map as the full RL78/G13 family, ensuring tool compatibility across variants.
How does the R5F101GAAFB#10 achieve ultra-low power consumption?
The R5F101GAAFB#10 achieves 0.57 μA STOP mode current through hardware-optimized power gating: disabling the CPU, flash, and most peripherals while retaining RTC oscillator, LVD comparator, and SRAM retention. Its 66 μA/MHz active current stems from adaptive clock gating, low-leakage process technology, and dynamic voltage scaling. The R5F101GAAFB#10 leverages SNOOZE mode to wake peripherals (e.g., ADC, UART) autonomously without CPU intervention - reducing average system power in duty-cycled applications.
R5F101GAAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
R5F101GAAFB#10 FAQ
1.How can I place an order for R5F101GAAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GAAFB#10 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 R5F101GAAFB#10 reliable?
The price and inventory of R5F101GAAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GAAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F101GAAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GAAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GAAFB#10?
R5F101GAAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GAAFB#10 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 R5F101GAAFB#10?
For technical support, including R5F101GAAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GAAFB#10 requirements.
6.How does Aetrix verify that R5F101GAAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F101GAAFB#10 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 R5F101GAAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F101GAAFB#10?
All R5F101GAAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GAAFB#10, 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 R5F101GAAFB#10 part is unused and in its original packaging.
Return procedure for R5F101GAAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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