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Renesas R5F104BEAFP#X0
- Part No.:
- R5F104BEAFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F104BEAFP#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,822
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Product details
Overview
R5F104BEAFP#X0 from Renesas is a 32-bit RL78/G14 microcontroller featuring 48 KB flash memory, 5.5 KB RAM, and 44-pin LQFP-0.8 mm package. It delivers 44 DMIPS at 32 MHz, operates from 1.6–5.5 V, supports -40°C to +85°C industrial temperature range (D-grade), and integrates 10-bit ADC (12 channels), UART/SPI/I²C interfaces, RTC, and ultra-low-power HALT/STOP/SNOOZE modes for battery-powered sensor nodes.
For engineers reviewing the R5F104BEAFP#X0 datasheet, R5F104BEAFP#X0 pinout, R5F104BEAFP#X0 application, or R5F104BEAFP#X0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm footprint, 48 KB code flash with data flash shield window, integrated 10-bit ADC with internal reference, and support for LIN-bus-capable UART channels in industrial control and metering designs.
Technical Context
The R5F104BEAFP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, enabling instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It includes on-chip high-accuracy ±1.0% oscillator (1–64 MHz selectable) and dedicated low-speed oscillator for watchdog timer operation independent of main clock.
Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) supporting block/repeat transfer modes activated by interrupts, and background operation (BGO) for data flash rewriting while executing program code - critical for firmware-over-the-air updates in field-deployed devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and 44 DMIPS @ 32 MHz |
| Flash Memory | 48 KB code flash with 1 KB block size, security lock, and self-programming with boot swap |
| Data Flash | 4 KB with 1,000,000 write cycles, BGO support, and 1.8–5.5 V rewrite voltage |
| RAM | 5.5 KB on-chip SRAM, including areas reserved for flash library operation (FE900H start) |
| ADC | 10-bit resolution, 12 analog input channels, internal 1.45 V reference, and temperature sensor |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD only), SNOOZE for low-latency wake-up |
| Operating Voltage | 1.6–5.5 V single supply, enabling direct interface with 1.8/2.5/3.3 V peripherals |
| Temperature Range | -40°C to +85°C (D-grade industrial qualification) |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, JEDEC MS-026 compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P10–P15 | CSI/SPI, I²C, UART, and buzzer output pins | Multi-function serial interface group supporting simultaneous CSI (3–8 ch), I²C (4–10 ch), and UART/LIN (3–4 ch) |
| P20–P27 | Analog inputs (ANI0–ANI7), AVREFP/AVREFM, ANO0/ANO1 | 12-channel 10-bit ADC input with differential reference capability and dual analog output support |
| P30–P31 | RTC1HZ, INT, TI/TO timers, PCLBUZ0 | Dedicated real-time clock output (1 Hz), external interrupt inputs, and programmable timer/buzzer outputs |
| P121–P124 | Crystal oscillator inputs (X1/X2), external clock (EXCLK/EXCLKS), XT1/XT2 | Supports crystal (32.768 kHz or 1–20 MHz) or external clock source for precise timing and RTC calibration |
| RESET, REGC, VDD, VSS | Reset control, regulator capacitor, power supply rails | REGC requires 0.47–1 μF capacitor to VSS; RESET is active-low with internal pull-up; VDD/VSS support decoupling per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 0.60 μA in STOP mode with RTC + LVD active - enables multi-year battery life in wireless sensors |
| Hardware Acceleration | On-chip DTC and ELC eliminate CPU overhead for peripheral-to-peripheral data transfers and event chaining |
| Secure Firmware Updates | Boot swap function + flash shield window enable safe over-the-air reprogramming without runtime corruption risk |
| Robust Analog Integration | 10-bit ADC with internal reference and temperature sensor reduces BOM cost and board space vs. external components |
| LIN-Bus Ready | UART channel supports LIN 2.2 protocol via software configuration - no external transceiver required for basic node implementation |
| Industrial Reliability | D-grade qualification (-40°C to +85°C), on-chip POR/LVD, and 14-level voltage detection for brown-out resilience |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Electricity/water/gas meter with pulse counting, tamper detection, and wireless reporting. IC Role / Device Role / Timing Role: Main controller handling metrology calculations, RTC-based billing intervals, and secure data logging to data flash. Use Value: 48 KB flash stores firmware + encryption keys; 4 KB data flash retains 10+ years of consumption logs; STOP mode extends battery life beyond 10 years. |
Use Scenario: Wireless temperature/humidity/pressure node in factory automation or HVAC monitoring. IC Role / Device Role / Timing Role: Sensor aggregator with ADC sampling, SPI interface to MEMS sensors, and UART/LIN for gateway communication. Use Value: Integrated 10-bit ADC with internal reference eliminates external precision references; SNOOZE mode enables sub-100 μs wake-up latency for responsive sensing. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine/microwave control board requiring motor drive signals, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time motor timing via TAU timers, key interrupt handling, and buzzer feedback generation. Use Value: 12-channel ADC monitors thermistors and current sense; PCLBUZ outputs drive piezo elements directly; HALT mode reduces standby power to <100 μA. |
Use Scenario: DIN-rail mounted lighting or HVAC control panel with display, relay drivers, and Modbus RTU interface. IC Role / Device Role / Timing Role: Protocol stack processor using UART for RS-485 Modbus, GPIO for relay control, and RTC for scheduling. Use Value: 44-pin LQFP provides sufficient I/O for 8+ relays and 4+ sensors; LIN-capable UART simplifies integration with legacy building systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104CEAFP#X0 | 64 KB flash, 5.5 KB RAM, same 44-pin LQFP-0.8 mm package and peripheral set | Higher firmware headroom for complex protocol stacks or larger UI assets | Select when future firmware expansion or bootloader complexity requires >48 KB code space |
| R5F104BEAFB#X0 | Identical flash/RAM/peripherals but in 48-pin LFQFP-0.5 mm package (7×7 mm) | Smaller PCB footprint and higher pin density; different thermal profile and soldering requirements | Choose for space-constrained designs where 48-pin LFQFP layout compatibility exists |
Compared with R5F104CEAFP#X0, the R5F104BEAFP#X0 trades 16 KB flash capacity for tighter BOM cost control in fixed-function applications; versus R5F104BEAFB#X0, it offers easier hand-soldering and legacy LQFP-0.8 mm tooling compatibility at the expense of board area.
Availability
R5F104BEAFP#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term industrial qualification, and full traceability across production batches.
Supply support for R5F104BEAFP#X0 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 performance (66 μA/MHz) with rich analog and communication peripherals, targeting cost-sensitive industrial control, metering, and sensor-edge applications requiring long battery life and robust operation.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104BEAFP#X0?
The R5F104BEAFP#X0 achieves a maximum operating frequency of 32 MHz using its on-chip high-speed oscillator, delivering 44 DMIPS performance. This metric reflects actual integer computation throughput under typical compiler-optimized code, validated per Renesas' RL78/G14 datasheet Rev. 3.40 test conditions.
Does the R5F104BEAFP#X0 support LIN bus communication, and if so, which UART channel is used?
Yes, the R5F104BEAFP#X0 supports LIN bus communication via its UART2 channel (pins P13/TxD2 and P14/RxD2), configured in LIN mode per the RL78/G14 hardware manual. No external transceiver is required for basic node operation, though ISO 17987-compliant physical layer ICs are needed for full network compliance.
What is the exact flash memory configuration of the R5F104BEAFP#X0, including block size and security features?
The R5F104BEAFP#X0 contains 48 KB of code flash memory organized in 1 KB blocks, with hardware-enforced prohibition of block erase and rewriting for selected regions (flash shield window), plus on-chip debug lock and boot swap functionality to prevent unauthorized firmware access or corruption during updates.
How much RAM is allocated for general-purpose use, and is any portion reserved for system functions?
The R5F104BEAFP#X0 provides 5.5 KB of on-chip RAM, of which 5.5 KB is usable for application variables and stack; however, the flash self-programming library reserves RAM starting at address FE900H - this region must be excluded from linker scripts to avoid runtime conflicts during data flash writes.
What are the supported operating voltage ranges and temperature grades for the R5F104BEAFP#X0?
The R5F104BEAFP#X0 operates from 1.6 V to 5.5 V over an industrial temperature range of -40°C to +85°C (D-grade), as confirmed by Renesas' ordering information table and electrical characteristics section in R01DS0053EJ0340. It does not support extended -40°C to +105°C (G-grade) operation.
Can the R5F104BEAFP#X0's ADC operate with internal reference only, and what is its accuracy specification?
Yes, the R5F104BEAFP#X0's 10-bit ADC supports internal 1.45 V reference (VREF = AVREFP–AVREFM) without external components. Per the datasheet, integral nonlinearity (INL) is ±1 LSB and offset error is ±1.5 LSB at VDD = 3.0–5.5 V and TA = -40°C to +85°C, enabling reliable sensor measurements in cost-sensitive designs.
R5F104BEAFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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:
R5F104BEAFP#X0 FAQ
1.How can I place an order for R5F104BEAFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BEAFP#X0 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 R5F104BEAFP#X0 reliable?
The price and inventory of R5F104BEAFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BEAFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F104BEAFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BEAFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BEAFP#X0?
R5F104BEAFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BEAFP#X0 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 R5F104BEAFP#X0?
For technical support, including R5F104BEAFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BEAFP#X0 requirements.
6.How does Aetrix verify that R5F104BEAFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104BEAFP#X0 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 R5F104BEAFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F104BEAFP#X0?
All R5F104BEAFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BEAFP#X0, 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 R5F104BEAFP#X0 part is unused and in its original packaging.
Return procedure for R5F104BEAFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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