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Renesas R5F104MGGFB#X0
- Part No.:
- R5F104MGGFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F104MGGFB#X0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,657
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Product details
Overview
R5F104MGGFB#X0 from Renesas is a 80-pin LFQFP-0.5mm 16-bit RL78/G14 microcontroller with 256 KB flash, 24 KB RAM, and industrial-grade -40°C to +105°C operation (G-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (0.60 μA RTC+LVD), and integrates 12-bit ADC (20 ch), UART/LIN (4 ch), I²C (10 ch), and real-time clock for embedded control in HVAC, motor drives, and industrial sensors.
For engineers reviewing the R5F104MGGFB#X0 datasheet, R5F104MGGFB#X0 pinout, R5F104MGGFB#X0 application, or R5F104MGGFB#X0 equivalent, key selection criteria include its G-grade temperature rating, LFQFP-80 package with 0.5 mm pitch, integrated LIN-capable UARTs, background data flash rewriting capability, and on-chip voltage detector with 14-level LVD interrupt/reset selection.
Technical Context
The R5F104MGGFB#X0 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). Its power management includes dedicated low-speed oscillator for watchdog timer and configurable STOP/HALT modes with selective peripheral retention.
Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) enables direct hardware linking of 19–26 event sources to peripherals without CPU intervention, while the Data Transfer Controller (DTC) supports block, repeat, and chain transfers triggered by interrupts-reducing firmware overhead in sensor data acquisition and motor control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in safety-critical control loops. |
| Max Clock Speed | 32 MHz; delivers 44 DMIPS for complex algorithm execution in compact industrial firmware. |
| Flash Memory | 256 KB code flash + 8 KB data flash; supports background rewriting (BGO) and 1M-cycle endurance for field-upgradable firmware. |
| RAM | 24 KB on-chip RAM; sufficient for RTOS stacks, communication buffers, and sensor fusion variables. |
| ADC | 12-bit resolution, 20-channel analog input with internal 1.45 V reference and temperature sensor; eliminates external references in thermal monitoring designs. |
| UART/LIN | 4 channels with LIN-bus support; enables multi-node automotive-grade diagnostics and actuator control without external transceivers. |
| Operating Temp | -40°C to +105°C (G-grade); qualified for under-hood and factory-floor environments without derating. |
| Supply Voltage | 1.6 V to 5.5 V single supply; simplifies power design across battery-powered and 5 V rail systems. |
Pinout & Package
Package: 80-pin LFQFP, 12 × 12 mm body, 0.5 mm pitch, exposed pad not present (non-HWQFN).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input | Connects to 32.768 kHz watch crystal for RTC calendar and low-power timing; requires external load capacitors. |
| P122 / X2 / EXCLK | Crystal output / external clock input | Drives 32.768 kHz crystal; alternatively accepts external clock source for precise timing synchronization. |
| P137 / INTP0 | Interrupt input 0 | Dedicated wake-up pin with configurable edge sensitivity; used for emergency stop or fault detection in motor control. |
| P40 / TOOL0 | On-chip debug interface | Enables SWD-based programming and real-time debugging without additional JTAG headers. |
| REGC | Internal regulator bypass | Must be connected to VSS via 0.47–1 μF capacitor to stabilize internal 1.25 V regulator for analog/peripheral domains. |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V supply; VSS provides reference for all analog and digital circuits including ADC and LVD. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA with RTC and LVD active-enables years of battery life in wireless sensor nodes with periodic wake-up. |
| Data Flash BGO | Execute code from main flash while rewriting data flash-allows seamless firmware parameter updates without system interruption. |
| ELC event linking | Hardware-triggered peripheral activation (e.g., ADC conversion start on timer match)-removes CPU polling and reduces jitter in closed-loop control. |
| On-chip LVD | 14 programmable voltage thresholds with interrupt/reset options-provides robust brown-out protection for industrial power supplies with wide ripple. |
| Multiple clock sources | High-accuracy ±1.0% on-chip oscillator (1–64 MHz) plus crystal support-eliminates external clock components in cost-sensitive designs. |
| Peripheral I/O redirection | PIOR0/1 registers remap functions like UART or SPI to alternate pins-increases PCB layout flexibility and avoids signal congestion. |
Applications
| Industrial Motor Control | Smart HVAC Thermostat |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC fans and pumps using PWM, ADC current sensing, and encoder inputs. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing commutation timing, and handling CAN/LIN communication with central unit. Use Value: Integrated 12-bit ADC with hardware averaging and ELC-triggered sampling ensures <1 μs jitter in current loop timing-critical for torque stability. | Use Scenario: Local temperature/humidity sensing, display driving, valve actuation, and wireless reporting in residential/commercial thermostats. IC Role / Device Role / Timing Role: Primary MCU managing sensor fusion, PID heating/cooling control, and sub-GHz RF interface timing. Use Value: 0.60 μA STOP mode with RTC alarm wake-up extends AA battery life beyond 5 years; integrated LVD prevents erratic behavior during brown-out events. |
| Factory Automation I/O Module | Medical Infusion Pump |
Use Scenario: DIN-rail mounted digital input/output expansion module with isolation, status LED control, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager interfacing with isolated level shifters and RS-485 transceivers. Use Value: Four LIN-capable UARTs allow native Modbus RTU framing and automatic break detection-reducing firmware complexity and improving protocol reliability. | Use Scenario: Precision fluid delivery control with flow sensor feedback, stepper motor drive, safety interlocks, and battery backup. IC Role / Device Role / Timing Role: Safety-monitored controller executing dose calculation, motor sequencing, and real-time clock-based log timestamping. Use Value: On-chip 14-level LVD with independent reset/interrupt outputs enables dual-voltage monitoring (main/battery rails) per IEC 62304 Class B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104MGGB#X0 | Same 80-pin LFQFP package and 256 KB flash, but D-grade (-40°C to +85°C) and 16 KB RAM instead of 24 KB. | Suitable for commercial/industrial ambient environments without extended temperature stress. | Select when operating temperature does not exceed +85°C and RAM headroom requirements are lower. |
| R5F104MLGFB#X0 | Same G-grade rating and 80-pin LFQFP, but 384 KB flash and 32 KB RAM-higher memory capacity with identical peripheral set. | Required for larger firmware images, OTA update partitions, or advanced connectivity stacks (e.g., BLE host + Modbus). | Choose when future firmware growth or dual-application partitioning (e.g., secure bootloader + main app) demands >256 KB flash. |
Compared with R5F104MGGFB#X0, the R5F104MGGB#X0 reduces RAM and temperature range for cost-sensitive non-extended-ambient use, while the R5F104MLGFB#X0 scales flash/RAM for complex firmware without changing footprint or peripheral configuration-enabling drop-in memory upgrades within the same hardware design.
Availability
R5F104MGGFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart HVAC systems, and factory automation I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104MGGFB#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, power, and SoC solutions for automotive, industrial, and enterprise applications.
The RL78/G14 product line delivers true low-power performance (66 μA/MHz) with rich analog and communication peripherals, targeting cost-sensitive yet reliable embedded control in appliances, industrial equipment, and building automation.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104MGGFB#X0?
The R5F104MGGFB#X0 operates at up to 32 MHz with a measured performance of 44 DMIPS. This benchmark reflects its RL78 CPU core efficiency under standard conditions (VDD = 3.3 V, TA = 25°C) and is validated in Renesas Application Note R01AN1413. The value directly informs real-time scheduling margins in motor control and communication stack implementations using the R5F104MGGFB#X0.
Does the R5F104MGGFB#X0 support background data flash rewriting while executing code from main flash memory?
Yes, the R5F104MGGFB#X0 supports Background Operation (BGO) for data flash memory. This allows the CPU to execute instructions from program flash while simultaneously erasing or writing to the 8 KB data flash area. The feature is enabled via the FLMCR register and is essential for implementing wear-leveling algorithms or runtime parameter storage without halting application logic on the R5F104MGGFB#X0.
What are the key differences between the G-grade and D-grade variants of the R5F104MGGFB#X0 family?
The G-grade R5F104MGGFB#X0 is rated for -40°C to +105°C operation and uses higher-specification silicon and screening, whereas D-grade variants (e.g., R5F104MGGB#X0) are limited to -40°C to +85°C. Both share identical peripherals and pinout, but G-grade qualification ensures reliability in under-hood automotive or high-temperature factory environments where the R5F104MGGFB#X0 is deployed.
How many UART/LIN channels does the R5F104MGGFB#X0 integrate, and are they fully LIN 2.2 compliant?
The R5F104MGGFB#X0 integrates four UART channels, each supporting LIN-bus protocol features including automatic sync-break detection, checksum generation/verification, and header/response timing control per LIN 2.2 specification. These capabilities are implemented in hardware (SCI module), reducing CPU load and ensuring deterministic timing-critical for multi-node LIN clusters managed by the R5F104MGGFB#X0.
What is the purpose of the REGC pin on the R5F104MGGFB#X0, and what external component is required?
The REGC pin on the R5F104MGGFB#X0 serves as the bypass terminal for the internal 1.25 V regulator that powers analog and peripheral circuits. It must be connected to VSS via a 0.47 μF to 1.0 μF ceramic capacitor placed as close as possible to the pin. Failure to install this capacitor causes unstable ADC readings, LVD false triggers, and potential reset anomalies in the R5F104MGGFB#X0.
R5F104MGGFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 64
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 17x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104MGGFB#X0 FAQ
1.How can I place an order for R5F104MGGFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104MGGFB#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 R5F104MGGFB#X0 reliable?
The price and inventory of R5F104MGGFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104MGGFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F104MGGFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104MGGFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104MGGFB#X0?
R5F104MGGFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104MGGFB#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 R5F104MGGFB#X0?
For technical support, including R5F104MGGFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104MGGFB#X0 requirements.
6.How does Aetrix verify that R5F104MGGFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104MGGFB#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 R5F104MGGFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F104MGGFB#X0?
All R5F104MGGFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104MGGFB#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 R5F104MGGFB#X0 part is unused and in its original packaging.
Return procedure for R5F104MGGFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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