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Renesas R5F10E8AALA#U0
- Part No.:
- R5F10E8AALA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 25-WFLGA
- Datasheet:
-
R5F10E8AALA#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 25LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,570
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Product details
Overview
R5F10E8AALA#U0 from Renesas Electronics is a 16-bit RL78/G1A microcontroller in a 25-pin WFLGA (3 × 3 mm) package, featuring 16 KB flash, 4 KB data flash, 2 KB RAM, 12-bit ADC with up to 13 channels, and ultra-low-power operation down to 0.23 µA in Stop mode. It integrates UART, I²C, CSI, RTC with calendar/alarm, and programmable buzzer output - deployed in battery-powered sensor nodes and portable industrial controls.
For engineers reviewing the R5F10E8AALA#U0 datasheet, R5F10E8AALA#U0 pinout, R5F10E8AALA#U0 application, or R5F10E8AALA#U0 equivalent, this page delivers verified electrical specs, validated 25-pin WFLGA terminal mapping, confirmed low-voltage (1.6 V–3.6 V) operation, and real-world use cases in energy-constrained embedded systems requiring RTC, analog sensing, and serial communication.
Technical Context
The R5F10E8AALA#U0 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It supports dual-clock domains: high-speed on-chip oscillator (up to 32 MHz ±1% over −20°C to +85°C) and low-speed 32.768 kHz subsystem clock for RTC.
Its peripheral set includes one UART channel (RxD0/TxD0), one simplified I²C (IICA0), one CSI channel (CSI00), 13-channel 12-bit ADC with internal 1.45 V reference and temperature sensor, and 8-channel timer array with PWM capability - all operating within 1.6 V–3.6 V supply range and −40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU with 3-stage pipeline; delivers 41 DMIPS at 32 MHz - enables real-time control without external co-processor. |
| Flash / Data Flash / RAM | 16 KB code flash, 4 KB data flash (1M erase cycles), 2 KB RAM - sufficient for firmware + parameter storage in compact edge devices. |
| ADC | 12-bit resolution, 13 input channels, 3.375 µs conversion time, supports 1.6 V min supply - suitable for direct battery voltage and thermistor monitoring. |
| Low-Power Modes | Stop mode: 0.23 µA (RAM retained); Halt (RTC+LVD): 0.57 µA; Operating: 66 µA/MHz - extends coin-cell life beyond 5 years in periodic-sense applications. |
| Communication | 1 × UART (7/8/9-bit), 1 × I²C master (IICA0), 1 × CSI (SPI-like), no LIN or multi-master I²C - fits simple host-peripheral sensor interface topologies. |
| Package & Temp | 25-pin WFLGA (3 × 3 mm, 0.5 mm pitch), consumer-grade −40°C to +85°C - enables ultra-compact PCB layout with minimal board area. |
Pinout & Package
Package: 25-pin plastic WFLGA (3 × 3 mm, 0.5 mm pitch), index-marked top view, exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40/TOOL0 | On-chip debug I/O | Single-wire debug interface for programming and real-time trace - eliminates need for dedicated JTAG header. |
| RESET | Active-low reset input | Asynchronous reset with internal POR/LVD - ensures reliable startup under brown-out conditions. |
| P03/ANI16/RxD1/TO00/(KR1) | Multi-function pin | Configurable as analog input, UART1 receive, timer output, or key return - enables flexible signal routing in space-constrained designs. |
| P23/ANI3/(KR3) | Analog input / Key return | 12-bit ADC channel with selectable key-scan function - supports capacitive touch or mechanical button matrix with shared pins. |
| AVSS / AVDD | Analog ground / analog supply | Dedicated analog power domain decoupled from digital VSS/VDD - improves ADC SNR in mixed-signal environments. |
| P121/X1 & P122/X2 | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy or external main clock up to 20 MHz - provides timing flexibility across modes. |
| REGC | Regulator capacitor terminal | Requires 0.47–1 µF capacitor to VSS - stabilizes internal LDO for consistent low-power operation and ADC reference stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Stop mode | 0.23 µA with RAM retention - enables wake-on-interrupt operation for multi-year battery life in wireless sensors. |
| Integrated RTC with calendar | Full BCD calendar + alarm + watch correction - eliminates external RTC IC and reduces BOM cost in time-stamped logging. |
| Self-programmable flash | Secure boot swap and flash shield window - supports field firmware updates with rollback protection in safety-critical updates. |
| On-chip temperature sensor | Calibrated sensor with ±3°C accuracy - enables thermal derating or ambient compensation without external components. |
| 3.6 V-tolerant I/O | GPIOs withstand 3.6 V regardless of VDD level - simplifies level-shifting in mixed-voltage systems interfacing with legacy peripherals. |
Applications
| Smart Thermostat Sensor Node | Portable Industrial Data Logger |
|---|---|
|
Use Scenario: Battery-powered wall-mounted unit measuring ambient temperature/humidity and reporting via UART to gateway every 10 minutes. IC Role / Device Role / Timing Role: Primary MCU executing sensor acquisition, RTC-based scheduling, low-power state management, and UART transmission. Use Value: 0.57 µA Halt mode with RTC active enables >7-year CR2032 battery life; integrated 12-bit ADC eliminates external signal conditioning. |
Use Scenario: Handheld device recording voltage, current, and temperature from industrial equipment using analog front-end and storing timestamps. IC Role / Device Role / Timing Role: Central controller managing multi-channel ADC sampling, RTC timestamping, flash logging, and USB/UART host interface. Use Value: 16 KB flash stores firmware + 4 KB data flash holds 10,000+ timestamped records; 13-channel ADC supports simultaneous sensor reads. |
| Wireless Remote Control Transmitter | Compact Appliance Control Module |
|
Use Scenario: IR or sub-GHz remote sending encoded commands with button press detection and low-battery warning. IC Role / Device Role / Timing Role: Low-power sensor hub scanning mechanical keys, generating carrier signals, and managing sleep/wake cycles. Use Value: Key return (KR) functionality maps 5 buttons to 5 pins; programmable buzzer output provides tactile feedback without external driver. |
Use Scenario: Embedded controller in coffee maker regulating heater, pump, and display backlight based on user input and thermal feedback. IC Role / Device Role / Timing Role: Real-time system manager handling analog temperature feedback, PWM-driven heater control, and UI button/LED sequencing. Use Value: 8-channel timer array generates precise PWM for heater duty cycle; 2 KB RAM buffers UI state and sensor history without external SRAM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10EBDANA#U0 | 32-pin HWQFN, 32 KB flash, 2 KB RAM, 18-channel ADC, adds UART2 + LINSEL support | Supports LIN bus diagnostics and larger firmware; requires more PCB area and higher pin count | Select when LIN compliance or >16 KB code space is required; not pin-compatible with R5F10E8AALA#U0. |
| R5F10EGAAFB#V0 | 48-pin LFQFP, 16 KB flash, 2 KB RAM, 24-channel ADC, adds second I²C and CSI channel | Enables dual-sensor interfaces (e.g., I²C temp + I²C humidity) and higher I/O count for complex UI | Choose for expanded peripheral concurrency; incompatible package and footprint vs. R5F10E8AALA#U0. |
Compared with R5F10E8AALA#U0, R5F10EBDANA#U0 offers greater memory and LIN support but increases size and cost, while R5F10EGAAFB#V0 expands analog and serial I/O at the expense of footprint - making R5F10E8AALA#U0 optimal for minimal-size, battery-sensitive 13-channel sensing.
Availability
R5F10E8AALA#U0 is available at Aetrix Electronics and suitable for smart thermostats, portable data loggers, wireless remotes, and compact appliance controllers requiring stable component supply and long-term industrial availability.
Supply support for R5F10E8AALA#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G1A product line targets ultra-low-power embedded control applications, emphasizing energy efficiency, integrated analog peripherals, and secure firmware execution for cost-sensitive, battery-operated devices.
FAQ
What is the maximum operating frequency and core performance of the R5F10E8AALA#U0?
The R5F10E8AALA#U0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS. Its 16-bit RL78 core executes 86% of instructions in 1–2 clock cycles, enabling deterministic real-time response in control loops and sensor processing without external acceleration.
Does the R5F10E8AALA#U0 support hardware RTC with calendar functions?
Yes, the R5F10E8AALA#U0 includes a full-featured RTC with BCD calendar, alarm interrupt, and watch correction function. It operates from the 32.768 kHz subsystem clock (XT1/EXCLKS) and maintains timekeeping in Halt mode at just 0.57 µA - critical for timestamped logging in battery-powered systems.
How many analog input channels does the R5F10E8AALA#U0 have, and what is their resolution?
The R5F10E8AALA#U0 features 13 analog input channels with 12-bit resolution and 3.375 µs conversion time. It supports internal 1.45 V reference voltage and an on-chip temperature sensor, allowing direct measurement of battery voltage, thermistors, and other analog signals without external components.
What communication interfaces are integrated into the R5F10E8AALA#U0?
The R5F10E8AALA#U0 integrates one UART channel (RxD0/TxD0), one simplified I²C master interface (IICA0), and one CSI channel (SPI-compatible). It does not include LIN, multi-master I²C, or additional UARTs - making it ideal for point-to-point sensor or actuator communication in minimal-footprint designs.
Is the R5F10E8AALA#U0 pin-compatible with other RL78/G1A variants like R5F10EBx or R5F10EGx?
No, the R5F10E8AALA#U0 uses a 25-pin WFLGA package, while R5F10EBx (32-pin HWQFN) and R5F10EGx (48/64-pin QFP/QFN/BGA) have different pin counts, layouts, and peripheral mappings. Direct replacement requires PCB redesign; functional alternatives must be selected based on package and feature alignment, not pin compatibility.
R5F10E8AALA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 25-WFLGA
- Series:
- RL78/G1A
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 14
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 3.6V
- Data Converters:
- A/D 13x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10E8AALA#U0 FAQ
1.How can I place an order for R5F10E8AALA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10E8AALA#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 R5F10E8AALA#U0 reliable?
The price and inventory of R5F10E8AALA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10E8AALA#U0 is usually 5 days.
3.What payment methods are accepted for R5F10E8AALA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10E8AALA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10E8AALA#U0?
R5F10E8AALA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10E8AALA#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 R5F10E8AALA#U0?
For technical support, including R5F10E8AALA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10E8AALA#U0 requirements.
6.How does Aetrix verify that R5F10E8AALA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F10E8AALA#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 R5F10E8AALA#U0 meets industry standards.
7.What is the process for return or replacement of R5F10E8AALA#U0?
All R5F10E8AALA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10E8AALA#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 R5F10E8AALA#U0 part is unused and in its original packaging.
Return procedure for R5F10E8AALA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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