Renesas R5F100CEALA#U0
- Part No.:
- R5F100CEALA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 36-WFLGA
- Datasheet:
-
R5F100CEALA#U0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 36WFLGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100CEALA#U0 from Renesas is a 32-bit RL78/G13 microcontroller with 64 KB flash memory, 4 KB data flash, and 3 KB RAM, operating at up to 32 MHz with 41 DMIPS performance. It features ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), 10-bit A/D converter (26 channels), real-time clock, and multiple serial interfaces (CSI, UART/LIN, I²C) for embedded control in battery-powered industrial sensors and smart home devices.
For engineers reviewing the R5F100CEALA#U0 datasheet, R5F100CEALA#U0 pinout, R5F100CEALA#U0 application, or R5F100CEALA#U0 equivalent, key selection criteria include its 36-pin WFLGA package, -40°C to +105°C industrial temperature grade (G), integrated data flash with 1M rewrite cycles, and support for background operation during flash rewriting.
Technical Context
The R5F100CEALA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution time from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip peripherals including DMA controller (4 channels), 16-bit timer (12 channels), and watchdog timer with dedicated low-speed oscillator.
Power management includes HALT, STOP, and SNOOZE modes, plus on-chip POR and LVD with 14 selectable voltage detection levels. The device supports self-programming with boot swap and flash shield window functions, and uses internal RAM (start address FEF00H) for flash library operations during data flash rewriting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 32-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz delivering 41 DMIPS performance for deterministic real-time control |
| Memory Configuration | 64 KB code flash (1 KB block size), 4 KB data flash (1M rewrite cycles), 3 KB RAM |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in RTC+LVD-only mode for multi-year battery life |
| Analog Peripherals | 10-bit A/D converter with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Serial Interfaces | Up to 8 CSI channels, 4 UART/LIN channels, and 10 I²C/Simplified I²C channels |
| Operating Temperature | -40°C to +105°C (industrial G-grade), supporting harsh-environment deployment |
| Supply Voltage Range | 1.6 V to 5.5 V single-supply operation, enabling direct interface with diverse sensor and actuator rails |
Pinout & Package
Package: 36-pin WFLGA (4 × 4 mm, 0.5-mm pitch), suitable for space-constrained PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support separate analog/digital supply routing and noise isolation |
| P00–P07 | General-purpose I/O with N-ch open drain | Configurable pull-up, TTL input buffer, and 6 V withstand voltage for mixed-voltage interfacing |
| P10–P17 | Multi-function I/O (SCK00/SCL00, SI00/RxD0, etc.) | Shared serial peripheral pins reduce pin count while maintaining protocol flexibility |
| P20–P27 | Analog input/AVREFP/AVREFM | Dedicated analog input group with programmable reference enables precision sensor signal acquisition |
| RESET | Active-low reset input | Accepts external reset signals and integrates with on-chip POR/LVD for robust system initialization |
| CLKP/CLKM | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC accuracy or high-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT, STOP, and SNOOZE modes enable sub-μA sleep states without sacrificing wake-up latency or peripheral retention |
| Data flash BGO | Background operation allows concurrent program execution and data flash rewriting-critical for firmware updates without system interruption |
| On-chip debug & security | Integrated debug interface with flash protection (block erase/write prohibition) prevents unauthorized firmware access or modification |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction functions eliminate need for external RTC ICs in time-stamped applications |
| High-accuracy oscillator | ±1.0% frequency tolerance over full voltage (1.8–5.5 V) and temperature (-20 to +85°C) range reduces BOM cost vs. external crystal |
| DMA controller | 4-channel DMA with 2-clock transfer between SFR and RAM minimizes CPU overhead for high-bandwidth peripheral data movement |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
Use Scenario: Wireless HVAC control unit monitoring ambient temperature, humidity, and user settings while communicating via sub-GHz RF or BLE. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, PID loop execution, display driver, and wireless stack timing. Use Value: Integrated 10-bit A/D with 26 channels and internal temperature sensor enable precise environmental sensing without external ADC; RTC calendar supports scheduling and energy usage logging. | Use Scenario: Compact motor drive module for BLDC or stepper motors in factory automation equipment requiring position feedback and fault monitoring. IC Role / Device Role / Timing Role: Real-time motion controller coordinating PWM generation, encoder input capture, and overcurrent protection response. Use Value: 16-bit timers with 12 channels provide independent PWM outputs and input capture for multi-axis control; 41 DMIPS ensures deterministic loop execution at 32 MHz. |
| Portable Medical Monitors | Energy Metering Modules |
Use Scenario: Battery-powered vital sign monitor acquiring ECG, SpO₂, and respiration data for remote patient telemetry. IC Role / Device Role / Timing Role: Low-power sensor hub aggregating analog front-end data, performing basic signal conditioning, and managing secure wireless transmission. Use Value: 0.57 μA RTC+LVD mode extends battery life to multi-year operation; data flash BGO enables secure firmware updates during clinical use without interrupting measurements. | Use Scenario: DIN-rail mounted electricity meter measuring voltage, current, and power factor using shunt or CT-based sensing. IC Role / Device Role / Timing Role: Precision metrology processor handling isolated analog sampling, harmonic analysis, and tamper-detection logic. Use Value: 10-bit A/D with internal 1.45 V reference provides stable conversion accuracy across wide temperature range; 64 KB flash accommodates complex tariff and communication protocol stacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101CEALA#U0 | No data flash memory (0 KB); same core, peripherals, and package | Suitable where firmware updates or parameter storage are handled externally or not required | Select when data flash functionality is unnecessary and BOM cost reduction is prioritized |
| RL78/G14 R5F104BEALA#U0 | Higher flash (128 KB), larger RAM (12 KB), enhanced security (AES engine), same 36-pin WFLGA package | Better suited for applications requiring larger firmware, cryptographic operations, or future feature expansion | Choose when additional memory, hardware encryption, or long-term scalability is needed |
Compared with R5F100CEALA#U0, R5F101CEALA#U0 removes data flash to reduce cost and complexity for fixed-function deployments, while R5F104BEALA#U0 adds AES acceleration and doubles memory resources-making it ideal for secure, feature-rich edge nodes where R5F100CEALA#U0 serves as a cost-optimized baseline.
Availability
R5F100CEALA#U0 is available at Aetrix Electronics and suitable for industrial motor controllers, smart thermostats, portable medical monitors, and energy metering modules requiring stable component supply across extended product lifecycles.
Supply support for R5F100CEALA#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/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to replace legacy 8/16-bit MCUs with scalable 32-bit performance and integrated analog peripherals.
FAQ
What is the maximum operating frequency and performance of the R5F100CEALA#U0?
The R5F100CEALA#U0 operates at up to 32 MHz and delivers 41 DMIPS of processing performance. Its RL78 CPU core supports configurable instruction execution times-from 0.03125 μs in high-speed mode to 30.5 μs in ultra-low-speed mode-enabling precise trade-offs between real-time responsiveness and power efficiency in the R5F100CEALA#U0 design.
Does the R5F100CEALA#U0 include data flash memory, and what are its endurance specifications?
Yes, the R5F100CEALA#U0 includes 4 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) with operation supported across the full VDD range of 1.8 V to 5.5 V. This capability is essential for reliable parameter storage and field firmware updates in the R5F100CEALA#U0's target applications.
What package type and pin count does the R5F100CEALA#U0 use?
The R5F100CEALA#U0 uses a 36-pin WFLGA package (4 × 4 mm, 0.5-mm pitch) with #U0 suffix indicating embossed tape packaging. This compact, leadless package supports high-density PCB layouts and automated surface-mount assembly while maintaining thermal and electrical performance for industrial environments.
What is the operating temperature range specified for the R5F100CEALA#U0?
The R5F100CEALA#U0 is qualified for industrial operation from -40°C to +105°C (G-grade), as indicated by the 'G' in its part number. This extended temperature range ensures reliable performance in demanding environments such as factory automation, outdoor metering, and motor control systems where the R5F100CEALA#U0 is deployed.
How does the R5F100CEALA#U0 support low-power operation in battery-powered applications?
The R5F100CEALA#U0 achieves ultra-low power consumption with 66 μA/MHz active current and just 0.57 μA in RTC+LVD-only mode. Its HALT, STOP, and SNOOZE modes, combined with fast wake-up times and peripheral retention, allow the R5F100CEALA#U0 to extend battery life significantly in portable and energy-harvesting applications.
R5F100CEALA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 36-WFLGA
- Series:
- RL78/G13
- 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:
- 26
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100CEALA#U0 FAQ
1.How can I place an order for R5F100CEALA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100CEALA#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 R5F100CEALA#U0 reliable?
The price and inventory of R5F100CEALA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100CEALA#U0 is usually 5 days.
3.What payment methods are accepted for R5F100CEALA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100CEALA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100CEALA#U0?
R5F100CEALA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100CEALA#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 R5F100CEALA#U0?
For technical support, including R5F100CEALA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100CEALA#U0 requirements.
6.How does Aetrix verify that R5F100CEALA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F100CEALA#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 R5F100CEALA#U0 meets industry standards.
7.What is the process for return or replacement of R5F100CEALA#U0?
All R5F100CEALA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100CEALA#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 R5F100CEALA#U0 part is unused and in its original packaging.
Return procedure for R5F100CEALA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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