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Renesas R5F104BCANA#20
- Part No.:
- R5F104BCANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F104BCANA#20.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R5F104BCANA#20 from Renesas Electronics is a 32-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 16 KB flash, 2.5 KB RAM, and 4 KB data flash, operating from 1.6–5.5 V at -40 to +85°C (A-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates 10-bit ADC (8 channels), UART/SPI/I²C interfaces, RTC, and on-chip debug.
For engineers reviewing the R5F104BCANA#20 datasheet, R5F104BCANA#20 pinout, R5F104BCANA#20 application, or R5F104BCANA#20 equivalent, this page provides verified specifications, package mapping, functional role in embedded control systems, and validated alternative options for cost-optimized, low-power industrial and consumer designs.
Technical Context
The R5F104BCANA#20 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It supports multiply/divide/accumulate instructions and 1 MB address space with four banks of 8-bit general-purpose registers.
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, real-time clock with calendar/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 CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - enables 44 DMIPS performance for real-time control tasks |
| Flash Memory | 16 KB code flash - sufficient for compact firmware with bootloader and safety checks |
| Data Flash | 4 KB - supports 1,000,000 write cycles for parameter storage and field updates |
| RAM | 2.5 KB - accommodates stack, heap, and real-time buffers for sensor fusion or protocol stacks |
| ADC | 10-bit resolution, 8 input channels - suitable for analog sensor interfacing with internal 1.45 V reference |
| Supply Range | 1.6–5.5 V - allows direct battery operation (e.g., 2×AA, Li-ion, or 3.3 V rail) |
| Low-Power Modes | HALT, STOP, SNOOZE - achieves 0.60 μA RTC+LVD retention for long-life battery applications |
Pinout & Package
Package: 32-pin HWQFN (5 × 5 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS. Pin count and package type are confirmed per Renesas ordering information table (R01DS0053EJ0370, p.4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trigger clock source for debugging or capture |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; secondary trigger clock for synchronized events |
| P10–P17 | SPI/I²C/UART/Timer I/O | Multiplexed serial and timer pins supporting CSI, UART, I²C, and TRDIO functions |
| P20–P23 | ANI0–ANI3 / AVREFP / AVREFM / ANO0 | Analog inputs with dedicated reference pins and one analog output channel |
| P30–P31 | INTP3 / RTC1HZ / SCK00 / TI03 / TO03 | RTC interrupt output and SPI clock/timer I/O for time-critical peripherals |
| P50–P51 | RxD0/TxD0 / INTP1/INTP2 / TOOLRxD/TOOLTxD | Dedicated debug UART interface with interrupt capability and tool connectivity |
| RESET | Active-low reset input | Hardware reset with internal POR and LVD integration for robust startup |
| REGC | Regulator capacitor terminal | Requires 0.47–1 µF capacitor to VSS for internal voltage regulator stability |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply; exposed die pad must connect to VSS for thermal and electrical integrity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP modes | Reduces active current to 66 μA/MHz and retention to 0.60 μA - extends coin-cell life to years |
| On-chip data flash with BGO | Enables background rewriting during program execution - critical for over-the-air updates |
| Event Link Controller (ELC) | Hardware-peripheral chaining eliminates CPU polling - improves real-time response and lowers power |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - supports timestamping and scheduled wake-up |
| Peripheral I/O redirection | Dynamic remapping of functions (e.g., UART, SPI) via PIOR registers - simplifies PCB layout reuse |
| Integrated voltage detector (LVD) | 14-level programmable reset/interrupt - prevents erratic behavior during brown-out conditions |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Microcontroller in smart thermostat managing temperature sensing, display, relay control, and wireless comms. IC Role / Device Role / Timing Role: Main system controller executing PID loop, driving segment LCD, and handling BLE UART bridge. Use Value: 16 KB flash hosts full application + OTA update handler; 0.60 μA STOP mode enables multi-year battery operation. |
Use Scenario: Battery-powered vibration/temperature node in predictive maintenance system. IC Role / Device Role / Timing Role: Data acquisition engine sampling analog sensors, performing FFT preprocessing, and waking radio on threshold event. Use Value: ELC-triggered ADC-to-DTC transfer reduces CPU load; RTC alarm wakes MCU every 10 s for burst measurement. |
| Consumer Remote Control | Smart Lighting Driver |
|
Use Scenario: IR/RF remote with button matrix, LED feedback, and low-power wake-on-button. IC Role / Device Role / Timing Role: Input scanner and protocol encoder with ultra-low standby current and fast wake-up. Use Value: SNOOZE mode maintains RTC and LVD while consuming <1 μA - achieves >2-year shelf life. |
Use Scenario: Dimmable LED driver with DALI/0–10 V interface and thermal foldback protection. IC Role / Device Role / Timing Role: Analog front-end controller managing current sense, PWM generation, and communication interface. Use Value: 10-bit ADC with internal reference measures shunt voltage accurately; 4 KB data flash stores calibration coefficients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BEANA#20 | 64 KB flash, 5.5 KB RAM, same 32-pin HWQFN package and peripheral set | Supports larger firmware (e.g., USB CDC, Modbus RTU stack) without changing PCB | Select when future firmware growth or added protocol support is anticipated |
| R5F104BCAFP#30 | Same flash/RAM specs but in 32-pin LQFP (7 × 7 mm, 0.8 mm pitch) package | Preferred for through-hole prototyping or legacy assembly lines requiring leaded packages | Choose for manual soldering, test fixture compatibility, or RoHS-compliant reflow with wider pitch |
Compared with R5F104BEANA#20 and R5F104BCAFP#30, the R5F104BCANA#20 offers optimal balance of minimal footprint, lowest BOM cost, and sufficient memory for basic control-making it ideal for high-volume, space-constrained consumer products where upgrade path or assembly flexibility is secondary.
Availability
R5F104BCANA#20 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, consumer remote controls, smart lighting drivers, and battery-powered IoT edge devices requiring stable component supply across production lifecycles.
Supply support for R5F104BCANA#20 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 family is designed for cost-sensitive, ultra-low-power embedded control applications - emphasizing energy efficiency, integrated peripherals, and rapid development with scalable memory options.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104BCANA#20?
The R5F104BCANA#20 operates up to 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. This speed is achievable across the full 1.6–5.5 V supply range and -40 to +85°C ambient temperature, making the R5F104BCANA#20 suitable for real-time control loops in appliances and industrial equipment without external clock components.
Does the R5F104BCANA#20 support in-system programming and secure firmware updates?
Yes, the R5F104BCANA#20 supports self-programming of both code and data flash memory with boot swapping and flash shield window protection. Its on-chip debug function enables programming via single-wire debug (SWD), and the security feature prohibits unauthorized block erase or rewrite - ensuring firmware integrity during field updates and preventing cloning.
How many analog input channels and what ADC resolution does the R5F104BCANA#20 provide?
The R5F104BCANA#20 integrates an 8-channel, 10-bit successive approximation ADC with selectable reference voltages (internal 1.45 V or external AVREFP/AVREFM). It supports simultaneous sampling on multiple channels and includes built-in temperature sensor and internal reference - enabling accurate sensor interfacing without external components.
What low-power modes are available on the R5F104BCANA#20, and what is the lowest current draw?
The R5F104BCANA#20 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.60 μA typical at 25°C - verified in the RL78/G14 datasheet (R01DS0053EJ0370, p.1). This enables multi-year operation on CR2032 batteries in remote controls or wireless sensors.
Is the R5F104BCANA#20 pin-compatible with other RL78/G14 variants in the same package?
Yes, all 32-pin HWQFN variants of the RL78/G14 family - including R5F104BAANA#20, R5F104BCANA#20, R5F104BEANA#20, and R5F104BGANA#20 - share identical pinouts and electrical characteristics. Firmware and PCB layouts are interchangeable across these parts, allowing seamless memory scalability without hardware redesign.
R5F104BCANA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 22
- 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:
R5F104BCANA#20 FAQ
1.How can I place an order for R5F104BCANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BCANA#20 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 R5F104BCANA#20 reliable?
The price and inventory of R5F104BCANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BCANA#20 is usually 5 days.
3.What payment methods are accepted for R5F104BCANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BCANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BCANA#20?
R5F104BCANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BCANA#20 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 R5F104BCANA#20?
For technical support, including R5F104BCANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BCANA#20 requirements.
6.How does Aetrix verify that R5F104BCANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F104BCANA#20 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 R5F104BCANA#20 meets industry standards.
7.What is the process for return or replacement of R5F104BCANA#20?
All R5F104BCANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BCANA#20, 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 R5F104BCANA#20 part is unused and in its original packaging.
Return procedure for R5F104BCANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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