Renesas R5F104BAAFP#10
- Part No.:
- R5F104BAAFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F104BAAFP#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104BAAFP#10 from Renesas is a 32-pin LQFP-32, 16 KB flash, 2.5 KB RAM RL78/G14 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD), 1.6–5.5 V supply, and integrated 10-bit ADC (8 channels), UART (3 channels), I²C (4 channels), and 16-bit timers (8 channels). It targets battery-powered industrial sensors and low-cost consumer control systems.
For engineers reviewing the R5F104BAAFP#10 datasheet, R5F104BAAFP#10 pinout, R5F104BAAFP#10 application, or R5F104BAAFP#10 equivalent, key selection criteria include its 32-pin LQFP-0.8 mm pitch package, 16 KB code flash / 4 KB data flash memory split, -40°C to +85°C industrial temperature grade (A-field), and support for background data flash rewriting with BGO.
Technical Context
The R5F104BAAFP#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), multiply/divide/accumulate instructions, and 1 MB address space. Its power management includes HALT, STOP, and SNOOZE modes with on-chip POR and 14-level LVD.
Peripheral integration includes Data Transfer Controller (DTC) with chain transfer, Event Link Controller (ELC) linking 19–26 event sources to peripherals, and dual-clock domain operation enabling simultaneous high-speed (up to 32 MHz) and low-speed (32.768 kHz) subsystems for RTC and LVD monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 16 KB code flash + 4 KB data flash; supports self-programming, boot swapping, and flash shield window |
| RAM | 2.5 KB on-chip RAM; used by flash library starting at FE900H |
| Operating Voltage | 1.6 V to 5.5 V; enables direct interface with 1.8/2.5/3.0 V logic without level shifters |
| Power Consumption | 66 μA/MHz active current; 0.60 μA in STOP mode with RTC + LVD active |
| ADC | 10-bit resolution, 8-channel analog input, internal 1.45 V reference and temperature sensor |
| Timers | Eight 16-bit Timer Array Unit (TAU) channels plus 12-bit interval timer, RTC, and watchdog timer |
Pinout & Package
Package: 32-pin plastic LQFP (7 × 7 mm, 0.8 mm pitch), RoHS-compliant, industrial-grade (A-field: –40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trace clock A - configurable as serial or timing resource |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; trace clock B - supports full-duplex UART and synchronized capture |
| P10–P17 | SPI/I²C/UART/ADC/Comparator I/O | Multiplexed serial interfaces (CSI, I²C, UART) and analog inputs - enables flexible peripheral routing via PIOR registers |
| P30–P31 | INTP3 / RTC1HZ / TI03 / TO03 | Interrupt input with RTC tick output; timer I/O - supports real-time event triggering and pulse generation |
| P50–P51 | RxD0 / TxD0 / SI00 / SO00 / TOOLRxD / TOOLTxD | Dual-role debug/serial port - allows in-circuit debugging and host communication over same pins |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external RC or supervisor IC reset signals |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V supply; decoupling required per REGC capacitor spec (0.47–1 µF to VSS) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA retention with RTC and LVD active - extends battery life in always-on sensing nodes |
| Background data flash rewrite (BGO) | Execute code from flash while updating data flash - enables firmware-safe parameter storage without halting operation |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining without CPU intervention - reduces ISR latency and CPU load in time-critical tasks |
| On-chip voltage detector (LVD) | 14 programmable threshold levels with interrupt/reset options - provides robust brown-out protection across supply ranges |
| Peripheral I/O redirection | Dynamic assignment of functions (e.g., UART, SPI, timer) to multiple pins via PIOR registers - simplifies PCB layout and design reuse |
Applications
| Smart Thermostat Sensor Node | Industrial Motor Control Panel |
|---|---|
Use Scenario: Battery-powered wall-mounted HVAC sensor collecting ambient temperature/humidity and transmitting via UART to central controller. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, calibration, and low-power scheduling; RTC maintains accurate timekeeping during STOP mode. Use Value: 0.60 μA STOP current enables multi-year battery life; integrated 10-bit ADC eliminates external signal conditioning; UART + I²C support simplifies connectivity to local displays and transceivers. | Use Scenario: Front-panel interface for 3-phase motor drive, monitoring status LEDs, reading push-button inputs, and reporting faults via serial link. IC Role / Device Role / Timing Role: Dedicated UI controller handling debounced inputs, LED PWM dimming, and UART-based fault logging; ELC synchronizes button press detection with LED update. Use Value: 8-channel ADC monitors panel voltage/current references; 16-bit timers generate precise LED PWM; N-ch open-drain I/O drives LEDs directly without external drivers. |
| Home Appliance Control Board | Energy Metering Subsystem |
Use Scenario: Washing machine mainboard managing water valve actuation, motor phase control, and user interface feedback. IC Role / Device Role / Timing Role: Secondary MCU coordinating appliance state machine, safety interlocks, and buzzer/audio alerts; watchdog timer ensures fail-safe shutdown. Use Value: Integrated buzzer output controller drives piezo elements directly; 32-pin LQFP fits compact control board layouts; 1.6–5.5 V operation tolerates wide input rail variations from AC-DC supplies. | Use Scenario: Auxiliary metering module in smart breaker panel measuring auxiliary voltages and temperatures for thermal derating calculations. IC Role / Device Role / Timing Role: Precision analog acquisition unit sampling isolated voltage dividers and thermistors; RTC timestamps measurements for trend analysis. Use Value: Internal 1.45 V reference and temperature sensor enable drift-compensated measurements; data flash stores calibration coefficients with 1M-cycle endurance; BGO allows live coefficient updates during runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BAAFP#30 | Same core, flash, RAM, and peripherals; differs only in packaging specification (#30 = embossed tape vs #10 = tray) | Identical functionality; selected for automated SMT line compatibility with tape-and-reel feeders | Choose #30 for high-volume production; #10 preferred for prototyping and low-volume builds |
| R5F104BCAFP#10 | 32 KB flash / 5.5 KB RAM variant; otherwise identical pinout, package, and peripheral set | Required when firmware exceeds 16 KB or additional RAM is needed for larger buffers or RTOS stacks | Select R5F104BCAFP#10 if future firmware growth or enhanced data logging is anticipated |
Compared with R5F104BAAFP#10, the #30 variant offers identical electrical and functional behavior with tape-and-reel packaging for automated assembly, while the R5F104BCAFP#10 provides 2× flash and ~2× RAM headroom within the same footprint - enabling scalable firmware development without PCB redesign.
Availability
R5F104BAAFP#10 is available at Aetrix Electronics and suitable for industrial motor control panels, smart thermostat sensor nodes, home appliance control boards, and energy metering subsystems requiring stable component supply across extended product lifecycles.
Supply support for R5F104BAAFP#10 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 delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications requiring high integration, long-term reliability, and seamless toolchain support.
FAQ
What is the maximum operating frequency of the R5F104BAAFP#10?
The R5F104BAAFP#10 operates up to 32 MHz using the high-speed on-chip oscillator. Its minimum instruction execution time is 0.03125 µs at this frequency, and it supports selectable clock sources including 32.768 kHz for ultra-low-power RTC operation. The device maintains full functionality across its 1.6–5.5 V supply range at all supported frequencies.
Does the R5F104BAAFP#10 support in-system programming (ISP)?
Yes, the R5F104BAAFP#10 supports in-system programming via its on-chip debug function and self-programming capability. It enables flash reprogramming through UART or dedicated debug interfaces without removing the R5F104BAAFP#10 from the target board, and includes boot swapping and flash shield window features to protect critical firmware sections during updates.
What are the analog capabilities of the R5F104BAAFP#10?
The R5F104BAAFP#10 integrates a 10-bit successive-approximation ADC with 8 analog input channels, internal 1.45 V reference voltage, and an on-chip temperature sensor. It supports VDD-referenced conversion across the full 1.6–5.5 V supply range and allows simultaneous sampling with hardware trigger sources such as timers or ELC events - all without CPU intervention.
Is the R5F104BAAFP#10 pin-compatible with other RL78/G14 variants?
Yes, the R5F104BAAFP#10 is pin-compatible with all other 32-pin LQFP-packaged RL78/G14 devices, including R5F104BA/AFP, R5F104BCAFP#10, and R5F104BD/AFP. Identical pin count, pitch, and I/O mapping allow direct substitution for memory or peripheral upgrades - provided software accommodates differences in flash size, RAM, or enabled peripherals per variant.
What debug interfaces does the R5F104BAAFP#10 support?
The R5F104BAAFP#10 supports on-chip debugging via the single-wire debug (SWD)-compatible interface using pins P50 (TOOLRxD) and P51 (TOOLTxD). It is fully compatible with Renesas E2 emulator and CS+ IDE, enabling breakpoints, register inspection, and flash programming. No external debug probe is required beyond standard SWD cabling and power.
R5F104BAAFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- 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:
- 22
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2.5K 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:
R5F104BAAFP#10 FAQ
1.How can I place an order for R5F104BAAFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BAAFP#10 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 R5F104BAAFP#10 reliable?
The price and inventory of R5F104BAAFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BAAFP#10 is usually 5 days.
3.What payment methods are accepted for R5F104BAAFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BAAFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BAAFP#10?
R5F104BAAFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BAAFP#10 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 R5F104BAAFP#10?
For technical support, including R5F104BAAFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BAAFP#10 requirements.
6.How does Aetrix verify that R5F104BAAFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F104BAAFP#10 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 R5F104BAAFP#10 meets industry standards.
7.What is the process for return or replacement of R5F104BAAFP#10?
All R5F104BAAFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BAAFP#10, 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 R5F104BAAFP#10 part is unused and in its original packaging.
Return procedure for R5F104BAAFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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