Renesas R5F104BAAFP#50
- Part No.:
- R5F104BAAFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F104BAAFP#50.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:3,995
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Product details
Overview
R5F104BAAFP#50 from Renesas is a 32-pin LQFP-32, 16 KB flash, 2.5 KB RAM RL78/G14 16-bit microcontroller operating at 32 MHz with 44 DMIPS, 1.6–5.5 V supply, and ultra-low-power HALT/STOP/SNOOZE modes-designed for battery-powered consumer sensor nodes and industrial control interfaces.
For engineers reviewing the R5F104BAAFP#50 datasheet, R5F104BAAFP#50 pinout, R5F104BAAFP#50 application, or R5F104BAAFP#50 equivalent, key selection criteria include its 16 KB code flash + 4 KB data flash, integrated 10-bit 8-channel ADC, real-time clock with calendar, and support for UART, I²C, and CSI serial interfaces in a 7×7 mm 0.8 mm-pitch package.
Technical Context
The R5F104BAAFP#50 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. It integrates on-chip debug, self-programming with boot swapping, and flash shield window protection.
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, RTC with alarm/calendar, watchdog timer, 8-bit D/A converter (up to 2 channels), and comparator (up to 2 channels). Power management features include on-chip POR, 14-level LVD, and true low-power operation down to 0.60 µA in RTC+LVD-only mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 44 DMIPS @ 32 MHz |
| Flash Memory | 16 KB code flash + 4 KB data flash; supports background operation and 1M rewrite cycles |
| RAM | 2.5 KB on-chip RAM; used by flash library starting at FE900H |
| Supply Voltage | 1.6 V to 5.5 V; enables direct interface with 1.8/2.5/3.0 V logic systems |
| Power Modes | HALT (66 µA/MHz), STOP (0.60 µA with RTC+LVD active), SNOOZE (low-latency wake-up) |
| Analog Peripherals | 10-bit 8-channel ADC with internal 1.45 V reference and temperature sensor; 8-bit dual-channel DAC |
| Serial Interfaces | 3 UART/LIN channels, 4–10 I²C/simplified I²C channels, 3–8 CSI (SPI-compatible) channels |
Pinout & Package
Package: 32-pin plastic LQFP (7 × 7 mm, 0.8 mm pitch), RoHS-compliant, rated for -40°C to +85°C (Consumer A-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trace clock A - configurable via PIOR registers |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; trace clock B - supports full-duplex async comms |
| P10–P17 | CSI/I²C/UART/SIO multiplexed pins | Supports 3 CSI, 4 I²C, and 3 UART channels with flexible peripheral redirection |
| P30–P31 | INTP3/RTC1HZ/SCK00 & INTP4/TI03/TO03 | Real-time clock interrupt output and general-purpose timer I/O with capture/compare |
| P50–P51 | SI00/RxD0/SDA00 & SO00/TxD0/TRGIOB | Dedicated debug UART (TOOLRxD/TOOLTxD) and I²C master/slave interface |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.6–5.5 V logic levels |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V rail; REGC requires 0.47–1 µF capacitor to VSS per datasheet caution |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.60 µA in STOP mode with RTC + LVD active - extends battery life in always-on sensor nodes |
| On-chip debug & programming | Fully integrated on-chip debug with flash self-programming, boot swapping, and flash shield window security |
| Flexible clock system | High-accuracy ±1.0% on-chip oscillator (1–64 MHz); supports external crystal (32.768 kHz to 20 MHz) |
| Peripheral event linking | Event Link Controller (ELC) enables hardware-triggered peripheral chaining without CPU intervention |
| Low-voltage operation | Full functionality down to 1.6 V - eliminates need for external voltage regulators in coin-cell designs |
Applications
| Smart Home Sensor Hub | Industrial Motor Control Interface |
|---|---|
Use Scenario: Compact battery-powered hub aggregating temperature, humidity, and motion data from multiple sensors. IC Role / Device Role / Timing Role: Main controller executing sensor polling, local decision logic, and BLE/Wi-Fi co-processor handshaking via UART/I²C. Use Value: 16 KB flash hosts firmware + OTA update partition; 0.60 µA STOP mode enables multi-year coin-cell operation with RTC wake-up scheduling. | Use Scenario: Front-panel interface for HVAC or pump drives, monitoring status LEDs, buttons, and fault signals. IC Role / Device Role / Timing Role: Dedicated UI controller handling button debouncing, LED PWM dimming, and isolated UART communication with main MCU. Use Value: 8-channel 10-bit ADC reads potentiometer inputs; 8-bit DAC drives analog meter outputs; 32-pin LQFP simplifies layout in space-constrained enclosures. |
| Portable Medical Monitor | Energy Meter Communication Module |
Use Scenario: Wearable pulse oximeter or glucose meter requiring clinical-grade timing accuracy and low EMI. IC Role / Device Role / Timing Role: Signal acquisition controller synchronizing ADC sampling, optical driver timing, and real-time display updates. Use Value: RTC with calendar and alarm ensures accurate timestamping of medical events; ±1.0% on-chip oscillator meets Class II timing requirements without external crystal. | Use Scenario: PLC-side module translating RS-485 meter data to SPI/I²C for host processor ingestion. IC Role / Device Role / Timing Role: Protocol bridge managing Modbus RTU framing, CRC calculation, and level-shifted physical layer interfacing. Use Value: 3 UART channels support simultaneous meter comms, debug port, and host interface; 4 KB data flash stores configuration and calibration tables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BAAFP#30 | Same core, flash, RAM, and peripherals; differs only in packaging specification (tray vs. embossed tape) | Identical functional use; selected for manual assembly or small-batch prototyping where tape-and-reel not required | Preferred for engineering samples and low-volume production runs with pick-and-place flexibility |
| R5F104BCAFP#50 | 32 KB flash + 5.5 KB RAM; otherwise identical pinout, package, and peripheral set | Required when firmware exceeds 16 KB or additional RAM needed for larger protocol stacks or buffering | Select when future firmware growth or enhanced data logging capability is anticipated |
Compared with R5F104BAAFP#50, R5F104BAAFP#30 offers identical electrical and functional behavior with tray packaging for lab use, while R5F104BCAFP#50 provides scalable memory headroom-enabling seamless migration without PCB or firmware architecture changes.
Availability
R5F104BAAFP#50 is available at Aetrix Electronics and suitable for smart home sensor hubs, portable medical monitors, and industrial motor control interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F104BAAFP#50 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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated consumer and industrial control applications requiring high integration and robust peripheral sets.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104BAAFP#50?
The R5F104BAAFP#50 operates at up to 32 MHz with a measured performance of 44 DMIPS. This rating reflects integer instruction throughput under typical conditions using the RL78 core's 3-stage pipeline and optimized compiler toolchain. The high-speed on-chip oscillator supports this frequency with ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C, eliminating need for external crystals in many applications.
Does the R5F104BAAFP#50 support in-system programming and secure firmware updates?
Yes, the R5F104BAAFP#50 supports full in-system programming via its on-chip debug interface and flash self-programming capability. It implements boot swapping and flash shield window protection to enable secure over-the-air or field firmware updates without exposing critical code sections. The 4 KB data flash allows background rewriting while executing from program memory, ensuring uninterrupted operation during updates.
What analog peripherals are integrated into the R5F104BAAFP#50 and what are their key specifications?
The R5F104BAAFP#50 integrates a 10-bit resolution ADC with 8 analog input channels, internal 1.45 V reference voltage, and integrated temperature sensor. It also includes an 8-bit DAC with up to two output channels, delivering 0 V to VDD output range and real-time update capability. Both peripherals operate across the full 1.6–5.5 V supply range, enabling direct sensor interfacing without external signal conditioning in most cases.
How does the power management architecture of the R5F104BAAFP#50 support battery-powered applications?
The R5F104BAAFP#50 features three ultra-low-power modes: HALT (66 µA/MHz), STOP (0.60 µA with RTC + LVD active), and SNOOZE (fast wake-up with peripheral activity). Its on-chip voltage detector (LVD) offers 14 selectable threshold levels for brown-out detection, and the single 1.6–5.5 V supply eliminates need for external regulators. These features collectively enable multi-year operation on coin cells in applications like wireless sensors and wearables.
Is the R5F104BAAFP#50 pin-compatible with other RL78/G14 variants in the same package footprint?
Yes, all RL78/G14 devices in the 32-pin LQFP (PLQP0032GB-A) package-including R5F104BAAFP#50, R5F104BAAFP#30, and R5F104BCAFP#50-share identical pinout, electrical characteristics, and peripheral mapping. Memory size differences (16 KB vs. 32 KB flash) do not affect pin function or layout, enabling drop-in replacement during design iteration or volume ramp without PCB revision.
R5F104BAAFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- 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:
- 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#50 FAQ
1.How can I place an order for R5F104BAAFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BAAFP#50 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#50 reliable?
The price and inventory of R5F104BAAFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BAAFP#50 is usually 5 days.
3.What payment methods are accepted for R5F104BAAFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BAAFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BAAFP#50?
R5F104BAAFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BAAFP#50 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#50?
For technical support, including R5F104BAAFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BAAFP#50 requirements.
6.How does Aetrix verify that R5F104BAAFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F104BAAFP#50 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#50 meets industry standards.
7.What is the process for return or replacement of R5F104BAAFP#50?
All R5F104BAAFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BAAFP#50, 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#50 part is unused and in its original packaging.
Return procedure for R5F104BAAFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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