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Renesas R5F104BEANA#U0
- Part No.:
- R5F104BEANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F104BEANA#U0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,291
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Product details
Overview
R5F104BEANA#U0 from Renesas is a 32-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 48 KB flash, 5.5 KB RAM, and 4 KB data flash, operating from 1.6–5.5 V at -40°C to +85°C (A-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates 10-bit ADC (16 channels), UART/SPI/I²C interfaces, RTC, and on-chip debug.
For engineers reviewing the R5F104BEANA#U0 datasheet, R5F104BEANA#U0 pinout, R5F104BEANA#U0 application, or R5F104BEANA#U0 equivalent, key selection criteria include its 32-pin 5×5 mm HWQFN package, A-grade industrial temperature range, 48 KB code flash with self-programming, and integrated analog peripherals for cost-sensitive embedded control.
Technical Context
The R5F104BEANA#U0 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 a 1 MB address space with four banks of 8-bit general-purpose registers.
Its peripheral set includes an Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/repeat/normal transfer modes, and background operation (BGO) for concurrent data flash rewriting while executing program code - enabling seamless firmware updates and real-time logging.
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), with high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable) |
| Memory | 48 KB code flash (1 KB blocks), 4 KB data flash (1M rewrite cycles), 5.5 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC (16 input channels, internal 1.45 V reference, temp sensor), 8-bit DAC (2 channels, 0–VDD output) |
| Digital Interfaces | 3 UART/LIN, 3–8 CSI (SPI-compatible), 4–10 I²C, 8–12 × 16-bit timers including RTC & watchdog |
| Operating Range | 1.6–5.5 V supply; -40°C to +85°C (A-grade consumer/industrial) |
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 footprint match industry-standard QFN-32 layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trace clock source for debugging |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; secondary trace clock |
| P10–P17 | Multi-function serial I/O (CSI, UART, I²C, TRDIx) | Configurable peripheral interface pins supporting SPI/I²C/UART with flexible signal routing via PIOR registers |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | Analog input channels (8 total), dedicated ADC reference inputs, and analog outputs |
| P30–P31 | INTP3 / RTC1HZ / SCK00 / TI03 / TO03 | Real-time clock interrupt output; SPI clock; timer input/output for precise event timing |
| P50–P51 | RxD0 / TxD0 / SI00 / SO00 / TOOLRxD / TOOLTxD | Dedicated debug UART (SWD/JTAG alternative), also usable as general-purpose UART or SPI |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset assertion or POR/LVD trigger |
| VDD / VSS / REGC | Power supply / ground / regulator capacitor | Single 1.6–5.5 V supply; REGC requires 0.47–1 μF capacitor to VSS for on-chip voltage regulator stability |
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 and sensor nodes |
| Self-programming flash | Boot swap and flash shield window functions allow secure in-field firmware updates without external programmer |
| Background data flash rewrite | BGO enables execution from main flash while writing to data flash - critical for real-time data logging applications |
| Hardware peripheral linking (ELC) | 19–26 event sources directly trigger peripherals (e.g., ADC conversion complete → DMA transfer), eliminating CPU overhead |
| Flexible I/O configuration | All GPIO support N-ch open drain, TTL input, and on-chip pull-up; supports 1.8/2.5/3.3 V logic level interfacing |
Applications
| Smart Energy Meters | Industrial Sensor Nodes |
|---|---|
Use Scenario: Residential electricity/water/gas meter with tamper detection, pulse counting, and wireless communication. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and UART/LIN communication to concentrator. Use Value: Ultra-low STOP-mode current extends battery life beyond 10 years; integrated LVD prevents data corruption during brown-out events. | Use Scenario: Wireless temperature/humidity/pressure node in factory automation with local display and alarm triggering. IC Role / Device Role / Timing Role: Sensor fusion hub acquiring analog inputs, running calibration algorithms, and driving buzzer/display via PCLBUZ/SSI. Use Value: On-chip 10-bit ADC with internal reference and temperature sensor eliminates external components; SNOOZE mode reduces average power during idle sensing cycles. |
| Home Appliance Control | Medical Diagnostic Devices |
Use Scenario: Washing machine main control board managing motor drivers, water valves, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Real-time motor timing controller using TAU timers, safety monitor via LVD/RTC/alarm, and HMI interface via UART/I²C. Use Value: HALT mode reduces MCU power during spin cycles; built-in BCD correction simplifies display driver implementation for LED/LCD panels. | Use Scenario: Portable blood glucose monitor requiring precision analog measurement, low-power standby, and USB/HID communication. IC Role / Device Role / Timing Role: Analog front-end controller performing 10-bit ADC acquisition, calibration math, and USB CDC emulation via UART. Use Value: Internal 1.45 V reference ensures consistent ADC accuracy across battery voltage range; 0.60 μA STOP mode enables >5-year shelf life with coin-cell backup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104CEANA#U0 | 64 KB flash, 5.5 KB RAM, same 32-pin HWQFN package and A-grade temp range | Higher code density for complex protocol stacks (e.g., BLE mesh, Modbus RTU) | Select when firmware size exceeds 48 KB or future feature expansion is required |
| R5F104BDANA#U0 | 32 KB flash, 4 KB RAM, identical peripheral set and power profile | Lower memory cost for fixed-function controllers (e.g., simple thermostat, fan speed control) | Select for cost-optimized designs with stable, minimal firmware footprint |
Compared with R5F104CEANA#U0 and R5F104BDANA#U0, the R5F104BEANA#U0 provides optimal balance of memory headroom (48 KB flash), low-power performance, and pin-compatible scalability - making it ideal for mid-complexity industrial and consumer control applications where firmware growth must be accommodated without PCB redesign.
Availability
R5F104BEANA#U0 is available at Aetrix Electronics and suitable for smart energy meters, industrial sensor nodes, and home appliance control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F104BEANA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line targets cost-sensitive, ultra-low-power embedded control applications - emphasizing energy efficiency, integrated analog peripherals, and simplified development for appliances, meters, and sensor edge devices.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104BEANA#U0?
The R5F104BEANA#U0 operates at up to 32 MHz with a performance rating of 44 DMIPS. This is achieved using the RL78 CPU core's 3-stage pipeline and high-speed on-chip oscillator. The device maintains this performance across its full 1.6–5.5 V supply range and -40°C to +85°C operating temperature, as verified in Renesas' R01DS0053EJ0340 datasheet Section 1.1.
Does the R5F104BEANA#U0 support in-system programming and secure firmware updates?
Yes, the R5F104BEANA#U0 supports full in-system programming via its on-chip debug interface and includes boot swap functionality plus a flash shield window for secure firmware updates. These features enable field upgrades without external programmers and prevent unauthorized access to protected code regions - capabilities confirmed in the "Code Flash Memory" section of the R5F104BEANA#U0 datasheet.
How many analog input channels and what ADC resolution does the R5F104BEANA#U0 provide?
The R5F104BEANA#U0 integrates a 10-bit successive-approximation ADC with 16 analog input channels (ANI0–ANI15), plus two additional dedicated analog inputs (ANI16, ANI17) on P00/P01. It supports internal 1.45 V reference voltage and on-die temperature sensing - all detailed in Section 1.1 "A/D Converter" of the official RL78/G14 datasheet.
What package type and pin count does the R5F104BEANA#U0 use, and is the exposed pad internally connected?
The R5F104BEANA#U0 uses a 32-pin HWQFN package (5 × 5 mm, 0.5 mm pitch) with part suffix #U0 indicating tray packaging. Its exposed die pad is not electrically connected to any internal circuit but is thermally and mechanically recommended to be soldered to a VSS plane for improved thermal dissipation and mechanical reliability - per Renesas' package drawing PWQN0032KB-A.
Can the R5F104BEANA#U0 operate from a single 1.8 V supply, and what low-power modes are supported?
Yes, the R5F104BEANA#U0 operates from 1.6 V to 5.5 V, fully supporting 1.8 V single-supply operation. It offers three ultra-low-power modes: HALT (CPU stopped, peripherals active), STOP (all clocks halted except RTC/LVD, 0.60 μA), and SNOOZE (selected peripherals active while CPU sleeps). These are specified in the "Ultra-Low Power Consumption Technology" section of the datasheet.
R5F104BEANA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 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:
R5F104BEANA#U0 FAQ
1.How can I place an order for R5F104BEANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BEANA#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 R5F104BEANA#U0 reliable?
The price and inventory of R5F104BEANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BEANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104BEANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BEANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BEANA#U0?
R5F104BEANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BEANA#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 R5F104BEANA#U0?
For technical support, including R5F104BEANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BEANA#U0 requirements.
6.How does Aetrix verify that R5F104BEANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104BEANA#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 R5F104BEANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104BEANA#U0?
All R5F104BEANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BEANA#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 R5F104BEANA#U0 part is unused and in its original packaging.
Return procedure for R5F104BEANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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