Renesas R5F104CCALA#U0
- Part No.:
- R5F104CCALA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 36-WFLGA
- Datasheet:
-
R5F104CCALA#U0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 36WFLGA
- Quantity:
- Payment:

- Shipping:

Inventory:4,499
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Product details
Overview
R5F104CCALA#U0 from Renesas is a 36-pin WFLGA-packaged RL78/G14 16-bit microcontroller with 16 KB flash, 4 KB data flash, and 2.5 KB RAM, operating from 1.6–5.5 V at -40°C to +105°C (G-grade), delivering 44 DMIPS at 32 MHz for ultra-low-power industrial control applications.
For engineers reviewing the R5F104CCALA#U0 datasheet, R5F104CCALA#U0 pinout, R5F104CCALA#U0 application, or R5F104CCALA#U0 equivalent, key selection criteria include its 36-pin WFLGA (4 × 4 mm, 0.5 mm pitch) footprint, integrated RTC + LVD + 10-bit ADC (8 channels), and support for SNOOZE mode (66 μA/MHz active, 0.60 μA in RTC+LVD-only operation).
Technical Context
The R5F104CCALA#U0 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock), plus multiply/divide/accumulate instructions and 1 MB address space.
It integrates a 10-bit A/D converter with internal 1.45 V reference and temperature sensor, dual 8-bit D/A outputs (0–VDD), two comparators, and peripheral functions including UART/LIN (3 channels), I²C (4 channels), CSI/SPI (3 channels), and Timer Array Unit (TAU) with up to 8 channels - all configurable via peripheral I/O redirection registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz (44 DMIPS); supported by ±1.0% accurate on-chip oscillator (1–64 MHz selectable) |
| Memory | 16 KB code flash, 4 KB data flash (1M rewrite cycles), 2.5 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC (8 input channels, internal 1.45 V ref, temp sensor), 2× 8-bit DAC (0–VDD output) |
| Package & Temp | 36-pin WFLGA (4 × 4 mm, 0.5 mm pitch), industrial grade (-40°C to +105°C) |
| Peripherals | 3× UART/LIN, 4× I²C, 3× CSI/SPI, TAU timer (up to 8 channels), RTC with calendar/alarm |
Pinout & Package
36-pin WFLGA (4 × 4 mm, 0.5 mm pitch) package with exposed die pad recommended to be connected to VSS; REGC requires 0.47–1 µF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; debug clock input; supports 1.8/2.5/3 V level interface |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; debug clock output; TTL-compatible input buffer |
| P10–P15 | SPI/I²C/UART/SSI signals | Multiplexed serial interfaces (SCK11, SI11, SO11, SDA20, SCL20, etc.) with peripheral I/O redirection |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM | 8-channel 10-bit analog inputs with dedicated VREF pins; supports internal 1.45 V reference |
| P30–P31 | INTP3 / RTC1HZ / INTP4 / PCLBUZ0 | Interrupt-capable GPIO with real-time clock tick output and buzzer drive capability |
| RESET / REGC / VDD / VSS | Power & reset control | Active-low reset with on-chip POR/LVD; REGC stabilizes internal regulator; 1.6–5.5 V supply range |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT/STOP/SNOOZE modes enable sub-μA operation with RTC + LVD active for battery-backed systems |
| Data flash BGO | Background operation allows full CPU execution during 4 KB data flash rewrites (1M cycle endurance) |
| Peripheral flexibility | Event Link Controller (ELC) enables hardware-triggered peripheral chaining without CPU intervention |
| Secure self-programming | Boot swapping and flash shield window prevent unauthorized code modification during firmware updates |
| Different-potential I/O | N-ch open-drain ports tolerate 6 V; configurable pull-up/tolerance supports mixed-voltage system interfacing |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor node with wireless telemetry and local display. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, RTC-based wake-up scheduling, UART-to-LoRa bridge, and low-power sleep coordination. Use Value: 0.60 μA STOP mode extends 10-year battery life; integrated 10-bit ADC + temp sensor eliminates external signal conditioning. |
Use Scenario: Compact wall-mounted HVAC thermostat with fan speed control, ambient sensing, and IR remote interface. IC Role / Device Role / Timing Role: System-on-chip handling UI button scan, PWM fan drive, I²C sensor reads, and IR decode timing-critical pulses. Use Value: Dual 8-bit DACs generate precise 0–10 V control signals; SNOOZE mode reduces average current during idle periods. |
| Programmable Power Supply | Motor Drive Monitor |
|
Use Scenario: Lab-grade adjustable DC power supply with voltage/current regulation, digital panel, and USB configuration. IC Role / Device Role / Timing Role: Precision analog front-end controller performing DAC-setpoint generation, ADC feedback sampling, and fault detection logic. Use Value: On-chip 1.45 V reference ensures stable 10-bit ADC accuracy across temperature; 4 KB data flash stores calibration coefficients. |
Use Scenario: BLDC motor driver board monitoring phase currents, temperature, and commutation timing. IC Role / Device Role / Timing Role: Real-time safety monitor capturing overcurrent events via comparator window mode and triggering hardware shutdown. Use Value: Comparator high-speed mode detects >100 ns overcurrent spikes; ELC links comparator output directly to timer stop for <1 µs response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BCALA#U0 | Same 36-pin WFLGA package, 32 KB flash, 5.5 KB RAM, identical peripherals and pinout | Higher memory headroom for larger firmware or data logging buffers | Select when firmware exceeds 16 KB or requires >2.5 KB RAM for real-time buffering |
| R5F104ECALA#U0 | Same package, 48 KB flash, 5.5 KB RAM, adds 2nd D/A channel and extra UART/I²C channel | Supports dual analog outputs and additional serial communication paths | Choose when needing second DAC output or concurrent UART + I²C + SPI interfaces |
Compared with R5F104BCALA#U0 and R5F104ECALA#U0, the R5F104CCALA#U0 provides optimal cost/performance balance for memory-constrained industrial controls where 16 KB flash and 2.5 KB RAM suffice, while retaining full peripheral compatibility and identical low-power behavior.
Availability
R5F104CCALA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, programmable power supplies, and motor drive monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104CCALA#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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust analog integration, extended temperature operation, and secure firmware update capability.
FAQ
What is the operating temperature range for the R5F104CCALA#U0?
The R5F104CCALA#U0 is rated for industrial operation from -40°C to +105°C (G-grade), validated per Renesas specification R01DS0053EJ0370. This rating applies to the full functional specification including 16 KB flash execution, 10-bit ADC accuracy, and RTC calendar operation - no derating required within this range.
Does the R5F104CCALA#U0 support in-system programming via standard interfaces?
Yes, the R5F104CCALA#U0 supports in-system programming using the on-chip debug interface via SWD (single-wire debug) through the TOOL0/TOOLRxD/TOOLTxD pins. It also enables self-programming of both code and data flash memory using the Flash Self-Programming Library, with boot swapping and flash shield window security features active.
How many analog input channels does the R5F104CCALA#U0 provide, and what is their resolution?
The R5F104CCALA#U0 provides eight analog input channels (ANI0–ANI7) with 10-bit resolution, operating across the full 1.6–5.5 V supply range. It includes internal 1.45 V reference voltage and an integrated temperature sensor, both accessible via the same ADC hardware without external components.
Can the R5F104CCALA#U0 generate precise PWM signals for motor control?
Yes, the R5F104CCALA#U0 includes a Timer Array Unit (TAU) with up to eight 16-bit timer channels capable of complementary PWM output with dead-time insertion. These timers support hardware synchronization, event linking via ELC, and direct peripheral triggering - enabling robust BLDC or stepper motor control without CPU overhead.
What packaging and assembly considerations apply to the R5F104CCALA#U0's WFLGA footprint?
The R5F104CCALA#U0 uses a 36-pin WFLGA package (4 × 4 mm, 0.5 mm pitch) with bottom-side solder balls. Renesas recommends connecting the exposed die pad to VSS for thermal and electrical stability, and placing a 0.47–1 µF capacitor between REGC and VSS. Reflow profile must comply with JEDEC J-STD-020 moisture sensitivity level 3 requirements.
R5F104CCALA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 36-WFLGA
- Series:
- RL78/G14
- 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:
- 32KB (32K 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:
R5F104CCALA#U0 FAQ
1.How can I place an order for R5F104CCALA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104CCALA#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 R5F104CCALA#U0 reliable?
The price and inventory of R5F104CCALA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104CCALA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104CCALA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104CCALA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104CCALA#U0?
R5F104CCALA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104CCALA#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 R5F104CCALA#U0?
For technical support, including R5F104CCALA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104CCALA#U0 requirements.
6.How does Aetrix verify that R5F104CCALA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104CCALA#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 R5F104CCALA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104CCALA#U0?
All R5F104CCALA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104CCALA#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 R5F104CCALA#U0 part is unused and in its original packaging.
Return procedure for R5F104CCALA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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