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Renesas R5F104CEALA#W0
- Part No.:
- R5F104CEALA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 36-WFLGA
- Datasheet:
-
R5F104CEALA#W0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 36WFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F104CEALA#W0 from Renesas is a 36-pin WFLGA-packaged RL78/G14 16-bit microcontroller with 48 KB flash, 5.5 KB RAM, and 8-channel 10-bit ADC, operating from 1.6–5.5 V at -40°C to +85°C for industrial sensor nodes and low-power HMI control.
For engineers reviewing the R5F104CEALA#W0 datasheet, R5F104CEALA#W0 pinout, R5F104CEALA#W0 application, or R5F104CEALA#W0 equivalent, key selection criteria include its 36-pin 4×4 mm WFLGA package, 48 KB code flash with data flash support, ultra-low-power STOP mode (0.60 μA), and integrated RTC with calendar function.
Technical Context
The R5F104CEALA#W0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (@32 MHz) to 30.5 µs (@32.768 kHz), and includes multiply/divide/accumulate instructions with 1 MB address space.
It integrates a 12-bit interval timer, real-time clock with 99-year calendar and alarm, watchdog timer, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Flash Memory | 48 KB code flash + 4 KB data flash; supports self-programming with boot swapping |
| RAM | 5.5 KB on-chip RAM for program/data storage and flash library operation |
| ADC | 10-bit resolution, 8 analog input channels, internal 1.45 V reference and temperature sensor |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active), SNOOZE for low-latency wake-up |
| Operating Voltage | 1.6 V to 5.5 V single supply; enables direct interface with 1.8/2.5/3.3 V peripherals |
| Temperature Range | -40°C to +85°C (industrial-grade A-field application) |
Pinout & Package
Package: 36-pin WFLGA (4 × 4 mm, 0.5 mm pitch), lead-free, moisture-sensitive level 3, suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trace clock source for debug |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; secondary trace clock |
| P10–P17 | SPI/I²C/UART/SIO interfaces | Configurable serial peripheral set supporting CSI, UART (LIN-capable), and I²C up to 10 channels |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM | 8-channel analog input with dedicated reference pins for precision ADC measurements |
| P30–P31 | INTP3 / RTC1HZ / INTP4 / PCLBUZ0 | Real-time clock interrupt output and programmable buzzer driver for audible alerts |
| P120–P122, P123–P124 | X1/X2/EXCLK/XT1/XT2 | Crystal oscillator inputs for main clock (1–20 MHz) and sub-clock (32.768 kHz) |
| RESET, REGC, VDD, VSS | Reset control, regulator capacitor, power rails | REGC requires 0.47–1 µF capacitor to VSS for stable internal voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA current draw with RTC and LVD active-enables multi-year battery life in metering applications |
| Data flash background operation | 1,000,000 write cycles with BGO; allows firmware updates without halting application code execution |
| Event Link Controller (ELC) | Hardware event routing across 19–26 peripheral signals eliminates CPU polling overhead and reduces latency |
| On-chip debug & security | Fully integrated on-chip debug interface with flash shield window and block-erase prohibition for IP protection |
| Flexible clock system | High-accuracy ±1.0% on-chip oscillator (1–64 MHz) plus crystal options-eliminates external clock components |
Applications
| Smart Sensor Node | Industrial HMI Panel |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and motion data at 10-second intervals. IC Role / Device Role / Timing Role: Main controller executing sensor readout, RTC-based scheduling, and low-power sleep/wake cycles. Use Value: 0.60 μA STOP mode extends CR2032 battery life beyond 5 years; integrated 10-bit ADC avoids external signal conditioning. |
Use Scenario: Touch-enabled local operator interface for HVAC controllers with LED status indicators and buzzer feedback. IC Role / Device Role / Timing Role: Real-time UI coordinator managing touch scan, display refresh timing, and audible alert generation via PCLBUZ0. Use Value: Integrated buzzer driver (PCLBUZ0/PCLBUZ1) and 8-channel GPIO reduce BOM count; 48 KB flash accommodates localized language assets. |
| Energy Meter Subsystem | Motor Control Monitor |
|
Use Scenario: Secondary MCU in smart electricity meter handling tamper detection, pulse counting, and secure data logging. IC Role / Device Role / Timing Role: Secure data logger using flash shield window and block-erase prohibition to prevent firmware tampering. Use Value: Data flash with 1M write cycles enables daily timestamped event logging for >27 years; LVD interrupt detects brown-out conditions. |
Use Scenario: Auxiliary monitoring unit in BLDC motor drive detecting overcurrent, thermal faults, and commutation timing errors. IC Role / Device Role / Timing Role: Fault monitor sampling analog current sense signals via 10-bit ADC and triggering fast-response shutdown via ELC-linked timer outputs. Use Value: ELC enables sub-microsecond response between ADC conversion completion and GPIO/timer action-no software latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BEALA#W0 | 32 KB flash, 5.5 KB RAM, same 36-pin WFLGA package and peripheral set | Lower memory capacity suits simpler sensor firmware without OTA update or multi-language UI | Select when application code size remains under 28 KB and no data flash logging is required |
| R5F104DEALA#W0 | 64 KB flash, 4 KB data flash, identical package and temperature grade | Higher flash supports bootloader + dual-application image or enhanced cryptographic libraries | Choose for field-upgradable designs requiring boot swapping and larger secure firmware partitions |
Compared with R5F104BEALA#W0 and R5F104DEALA#W0, the R5F104CEALA#W0 delivers optimal balance of code density, data logging capability, and cost-48 KB flash fits typical sensor/HMI firmware while retaining 4 KB data flash for configuration storage and event history.
Availability
R5F104CEALA#W0 is available at Aetrix Electronics and suitable for industrial sensor nodes, energy meter subsystems, motor control monitors, and smart HMI panels requiring stable component supply across extended production lifecycles.
Supply support for R5F104CEALA#W0 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/G14 product line targets cost-sensitive, ultra-low-power general-purpose applications-designed for rapid development with integrated peripherals, robust toolchain support, and long-term industrial availability.
FAQ
What is the maximum operating frequency of the R5F104CEALA#W0?
The R5F104CEALA#W0 supports up to 32 MHz operation using the high-speed on-chip oscillator, delivering 44 DMIPS performance. It also supports ultra-low-speed operation down to 32.768 kHz for RTC and low-power modes-enabling dynamic clock scaling to optimize power versus performance in the R5F104CEALA#W0.
Does the R5F104CEALA#W0 include a hardware real-time clock with calendar function?
Yes, the R5F104CEALA#W0 integrates a full-featured real-time clock with 99-year calendar, alarm interrupt, and clock correction function. It operates independently in STOP mode with only 0.60 μA consumption, making it ideal for time-stamped logging and scheduled wake-up in battery-powered R5F104CEALA#W0 deployments.
Can the R5F104CEALA#W0 perform flash self-programming during runtime?
Yes, the R5F104CEALA#W0 supports full self-programming of both code and data flash memory, including boot swapping and flash shield window protection. The flash library uses RAM starting at address FE900H, and background operation allows concurrent code execution while rewriting data flash-critical for firmware updates in the R5F104CEALA#W0.
What serial communication interfaces are available on the R5F104CEALA#W0?
The R5F104CEALA#W0 provides up to 3 UART channels (one LIN-capable), 4–10 I²C/simplified I²C channels, and 3–8 CSI (SPI-compatible) channels. All are configurable via peripheral I/O redirection registers, enabling flexible pin assignment without PCB redesign for the R5F104CEALA#W0.
Is the R5F104CEALA#W0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 36-pin WFLGA package-including R5F104CEALA#W0, R5F104BEALA#W0, and R5F104DEALA#W0-share identical pinouts and electrical characteristics. This enables seamless memory-scaling upgrades within the same PCB layout for the R5F104CEALA#W0 family.
R5F104CEALA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 36-WFLGA
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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:
- 26
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K 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:
R5F104CEALA#W0 FAQ
1.How can I place an order for R5F104CEALA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104CEALA#W0 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 R5F104CEALA#W0 reliable?
The price and inventory of R5F104CEALA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104CEALA#W0 is usually 5 days.
3.What payment methods are accepted for R5F104CEALA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104CEALA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104CEALA#W0?
R5F104CEALA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104CEALA#W0 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 R5F104CEALA#W0?
For technical support, including R5F104CEALA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104CEALA#W0 requirements.
6.How does Aetrix verify that R5F104CEALA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F104CEALA#W0 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 R5F104CEALA#W0 meets industry standards.
7.What is the process for return or replacement of R5F104CEALA#W0?
All R5F104CEALA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104CEALA#W0, 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 R5F104CEALA#W0 part is unused and in its original packaging.
Return procedure for R5F104CEALA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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