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Renesas R5F104GEGFB#V0
- Part No.:
- R5F104GEGFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GEGFB#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,431
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Product details
Overview
R5F104GEGFB#V0 from Renesas is a 48-pin LFQFP, 128 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F104GEGFB#V0 datasheet, R5F104GEGFB#V0 pinout, R5F104GEGFB#V0 application, or R5F104GEGFB#V0 equivalent, this page delivers verified package mapping, confirmed peripheral configuration (10-channel I²C, 4-channel UART/LIN, 8-channel 16-bit TAU timer), real-time clock calendar support, and validated drop-in alternatives for industrial temperature-grade embedded designs.
Technical Context
The R5F104GEGFB#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode), plus multiply/divide/accumulate instructions and 1 MB address space.
It integrates dual flash memory: 128 KB code flash (1 KB block size, security-protected erase/write) and 8 KB data flash with background operation (BGO), 1,000,000 write cycles, and voltage tolerance from 1.8–5.5 V - enabling robust firmware updates and parameter storage in field-deployed equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz (44 DMIPS), supported by ±1.0% accurate on-chip oscillator (1–64 MHz selectable) |
| Flash Memory | 128 KB code flash (1 KB blocks) + 8 KB data flash with BGO and 1M write endurance |
| RAM | 12 KB on-chip RAM for real-time task execution and stack allocation |
| Supply Voltage | 1.6–5.5 V single supply, enabling direct interface with 1.8/2.5/3.3 V peripherals |
| Operating Temperature | −40°C to +105°C (Industrial G-grade), qualified for extended thermal environments |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active), SNOOZE for selective peripheral wake-up |
Pinout & Package
48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, with exposed pad recommended for thermal management and grounding. Pin 1 marked via corner notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal input | Connects to 32.768 kHz tuning-fork crystal for RTC accuracy and low-power timekeeping |
| P122/X2/EXCLK | Crystal output / external clock input | Completes RTC oscillator circuit or accepts external clock source for synchronous timing |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; debounced externally for noise immunity |
| VDD / VSS | Power supply / ground | Dual VDD/VSS pairs ensure stable core/peripheral rail separation and EMI suppression |
| P14/RxD2/SI20/SDA20/TRDIOD0/(SCLA0) | Multi-function serial I/O | Configurable as UART RX, SPI slave in, I²C data, or simplified I²C clock - enables flexible peripheral interconnect |
| P15/PCLBUZ1/SCK20/SCL20/TRDIOB0/(SDAA0) | Multi-function serial I/O | Supports buzzer drive, SPI clock, I²C clock, or I²C data - simplifies shared bus resource allocation |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Links 19–26 peripheral event signals without CPU intervention, reducing latency and ISR overhead in real-time control loops |
| Data Transfer Controller (DTC) | Performs DMA-like transfers (normal/repeat/block modes) triggered by interrupts, freeing CPU for computation during serial/ADC operations |
| Real-Time Clock (RTC) | Full calendar (99-year range), alarm, and clock correction - eliminates need for external RTC IC in time-stamped logging applications |
| On-chip Voltage Detector (LVD) | 14-level programmable reset/interrupt threshold (1.6–4.2 V) for brown-out detection and graceful shutdown before flash corruption |
| Peripheral I/O Redirection | PIOR0/PIOR1 registers remap up to 16 functions across pins, enabling PCB layout optimization and pin conflict resolution |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, data fusion, wireless transmission scheduling, and RTC-based wake-up intervals. Use Value: 0.60 μA STOP mode extends 2× AA battery life beyond 5 years; 10-channel I²C supports multiple sensor ICs on single bus. |
Use Scenario: Residential HVAC controller managing heating/cooling cycles, user interface, and occupancy sensing. IC Role / Device Role / Timing Role: Central MCU coordinating relay drivers, display backlight, capacitive touch, and precise 1-second RTC interrupt for scheduling. Use Value: Integrated 8-bit DAC drives analog valve control; −40°C to +105°C rating ensures reliability in attic-mounted units. |
| Programmable Logic Relay | Energy Meter Communication Module |
Use Scenario: DIN-rail mounted relay with configurable I/O, timer-based sequencing, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time logic executor using ELC-triggered timer events and DTC-managed UART framing for deterministic response. Use Value: HALT mode reduces standby current to 66 μA/MHz; 4-channel UART/LIN supports dual RS-485 ports and diagnostics interface. |
Use Scenario: Sub-metering module aggregating current/voltage samples and transmitting via NB-IoT or LoRaWAN. IC Role / Device Role / Timing Role: Data concentrator handling 12-bit ADC sampling, CRC calculation, secure flash writes, and low-power radio wake-up coordination. Use Value: 8 KB data flash stores calibration coefficients and firmware update staging area; BGO allows concurrent sampling and flash write. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GGGFB#V0 | Same 48-pin LFQFP package, 128 KB flash, but 16 KB RAM (vs. 12 KB); identical peripherals and G-grade temp range | Preferred when larger RAM buffer needed for complex protocol stacks (e.g., full Modbus TCP or OTA update handling) | Select R5F104GGGFB#V0 if application requires >12 KB RAM while retaining identical pinout and firmware compatibility |
| R5F104GHGFB#V0 | Same package and RAM, but 192 KB flash (vs. 128 KB); otherwise identical clock, power, and peripheral specs | Suitable for field-upgradable systems requiring larger firmware image space or dual-bank boot swapping | Choose R5F104GHGFB#V0 when future firmware expansion or A/B bank updates are mandated by certification requirements |
Compared with R5F104GEGFB#V0, R5F104GGGFB#V0 provides +4 KB RAM for deeper protocol stacks without layout change, while R5F104GHGFB#V0 adds +64 KB flash for certified dual-image firmware - both retain identical pinout, timing, and industrial temperature qualification.
Availability
R5F104GEGFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat control, and programmable logic relays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104GEGFB#V0 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 targets cost-sensitive, ultra-low-power industrial and consumer applications requiring high integration, robust flash reliability, and extended temperature operation - with R5F104GEGFB#V0 optimized for G-grade 48-pin control nodes.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104GEGFB#V0?
The R5F104GEGFB#V0 operates up to 32 MHz with an RL78 CPU core delivering 44 DMIPS. Its high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C) enables reliable timing without external crystals in many applications. The R5F104GEGFB#V0 achieves this performance within its 1.6–5.5 V supply range and supports dynamic clock switching between high-speed and ultra-low-speed modes for optimal power/performance trade-offs.
Does the R5F104GEGFB#V0 support real-time clock functionality with calendar features?
Yes, the R5F104GEGFB#V0 integrates a full-featured real-time clock (RTC) with calendar support for 99 years, alarm generation, and clock correction capability. It uses the P121/X1 and P122/X2 pins for connection to a 32.768 kHz crystal, and maintains timekeeping in STOP mode with only 0.60 μA current draw - making the R5F104GEGFB#V0 suitable for timestamped data logging and scheduled wake-up applications.
What are the flash memory capacities and key reliability features of the R5F104GEGFB#V0?
The R5F104GEGFB#V0 includes 128 KB of code flash memory and 8 KB of data flash memory. The code flash supports 1 KB block erase, security lock against unauthorized rewriting, and on-chip debug. The data flash enables background operation (BGO), allowing program execution during write/erase cycles, and guarantees 1,000,000 write cycles at 1.8–5.5 V - critical for R5F104GEGFB#V0 use in firmware-over-the-air and parameter storage applications.
How does the R5F104GEGFB#V0 manage low-power operation in industrial environments?
The R5F104GEGFB#V0 offers three ultra-low-power modes: HALT (66 μA/MHz), STOP (0.60 μA with RTC and LVD active), and SNOOZE (selective peripheral wake-up). Its −40°C to +105°C industrial G-grade qualification ensures stable operation across wide thermal ranges, while the on-chip voltage detector (LVD) with 14 programmable thresholds prevents brown-out corruption. These features make the R5F104GEGFB#V0 ideal for unattended industrial edge devices.
Which communication interfaces are integrated into the R5F104GEGFB#V0, and how many channels does each support?
The R5F104GEGFB#V0 integrates multiple serial interfaces: up to 10 channels of I²C/simplified I²C, 4 channels of UART/LIN (with LIN bus support), and 3–8 channels of CSI (simplified SPI). It also includes a 12-bit interval timer, 8–12 channels of 16-bit timer (TAU, RJ, RD, RG), and 8–20-channel 8/10-bit A/D converter - all accessible via the R5F104GEGFB#V0's 48-pin LFQFP package with flexible peripheral pin remapping.
R5F104GEGFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- 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:
- 34
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104GEGFB#V0 FAQ
1.How can I place an order for R5F104GEGFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GEGFB#V0 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 R5F104GEGFB#V0 reliable?
The price and inventory of R5F104GEGFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GEGFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F104GEGFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GEGFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GEGFB#V0?
R5F104GEGFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GEGFB#V0 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 R5F104GEGFB#V0?
For technical support, including R5F104GEGFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GEGFB#V0 requirements.
6.How does Aetrix verify that R5F104GEGFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104GEGFB#V0 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 R5F104GEGFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F104GEGFB#V0?
All R5F104GEGFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GEGFB#V0, 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 R5F104GEGFB#V0 part is unused and in its original packaging.
Return procedure for R5F104GEGFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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