Renesas R5F104GEAFB#30
- Part No.:
- R5F104GEAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GEAFB#30.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104GEAFB#30 from Renesas is a 48-pin LFQFP, 0.5 mm pitch, industrial-grade (G) 16-bit RL78/G14 microcontroller with 48 KB flash, 5.5 KB RAM, and 4 KB data flash. It operates from 1.6–5.5 V, delivers 44 DMIPS at 32 MHz, and supports ultra-low-power modes (0.60 μA in RTC+LVD mode), targeting battery-powered industrial sensors and motor control interfaces.
For engineers reviewing the R5F104GEAFB#30 datasheet, R5F104GEAFB#30 pinout, R5F104GEAFB#30 application, or R5F104GEAFB#30 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm package, integrated 10-bit ADC (20-channel), dual UART/LIN support, and hardware event-linking capability for deterministic real-time peripheral coordination.
Technical Context
The R5F104GEAFB#30 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). It integrates a Data Transfer Controller (DTC) and Event Link Controller (ELC) enabling autonomous peripheral triggering without CPU intervention.
It features a 10-bit A/D converter with internal 1.45 V reference and temperature sensor, dual UART channels with LIN-bus compliance, and a Real-Time Clock with calendar function (99-year range) and alarm. Power management includes on-chip POR, LVD with 14 selectable voltage levels, and HALT/STOP/SNOOZE low-power states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing for real-time control loops. |
| Max Operating Frequency | 32 MHz; delivers 44 DMIPS for responsive sensor fusion and communication stack execution. |
| Flash Memory | 48 KB code flash + 4 KB data flash; supports background operation (BGO) and 1M rewrite cycles for firmware updates and logging. |
| RAM | 5.5 KB on-chip RAM; sufficient for RTOS context switching and buffer-intensive protocols like Modbus RTU. |
| ADC Resolution & Channels | 10-bit resolution, up to 20 analog inputs; includes internal reference (1.45 V) and temperature sensor for self-calibration. |
| Low-Power Modes | 0.60 μA in STOP mode with RTC + LVD active; enables multi-year battery life in wireless sensor nodes. |
| Operating Voltage Range | 1.6–5.5 V; allows direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level-shifting. |
Pinout & Package
Package: 48-pin LFQFP, 7 × 7 mm, 0.5 mm pitch, lead-free, RoHS-compliant. Thermal pad not present (non-exposed die).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trigger clock source for hardware synchronization. |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; complementary trigger clock for dual-signal capture. |
| P10–P17 | CSI11/UART2/I²C/SCL/SI/SO/TRDIx | Multiplexed serial interfaces; configurable via PIOR registers for flexible peripheral routing. |
| P20–P27 | ANI0–ANI7 / AVREFP/M / ANO0/1 | Analog input bank (8 channels); dedicated reference pins enable ratiometric sensor measurements. |
| P30–P31 | INTP3/RTC1HZ/SCK00 & INTP4/TI03/TO03 | Real-time clock interrupt output; timer I/O for encoder quadrature decoding or PWM generation. |
| P50–P51 | SI00/RxD0/SDA00 & SO00/TxD0/TRGIOB | Secondary UART + I²C channel; supports debug interface (TOOLRxD/TOOLTxD) and slave communication. |
| P60–P62 | SCLA0/SDAA0/SSI00 | I²C master/slave interface + synchronous serial (SSI) for SPI-compatible sensors or DACs. |
| P121–P124 | X1/X2/XT1/XT2/EXCLK | Crystal oscillator inputs (32.768 kHz & MHz ranges); supports precision RTC and high-accuracy system clock. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external supervisor ICs or manual reset buttons. |
| VDD / VSS | Power supply / Ground | Dual power domains: single 1.6–5.5 V rail simplifies PCB design and reduces BOM count. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Links 19–26 peripheral events directly (e.g., ADC EOC → DMA transfer), eliminating CPU polling overhead. |
| Data Transfer Controller (DTC) | Performs memory-to-peripheral transfers autonomously; supports block, repeat, and chain modes for sensor data streaming. |
| On-chip Debug & Flash Shield | Full on-chip debug with SWD interface; flash shield window prevents unauthorized read/write of protected code sections. |
| Hardware CRC Calculator | Accelerates checksum computation for firmware integrity verification and secure boot validation. |
| Integrated LIN Transceiver Support | UART2 with LIN break detection and sync field generation; meets ISO 17987-4 for automotive body electronics. |
| Temperature Sensor + VREF | On-die temperature sensor (±2°C accuracy) and 1.45 V internal reference enable self-calibrating analog front-ends. |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Brushless DC motor commutation in HVAC blowers with current sensing and thermal monitoring. IC Role / Device Role: Real-time controller executing FOC algorithm, managing PWM outputs, and sampling ADC channels at 100 kSPS. Use Value: Integrated 10-bit ADC with internal reference and 12-bit interval timer enable precise current loop timing and ratiometric shunt measurement. |
Use Scenario: Three-phase electricity meter with pulse counting, tamper detection, and RS-485 communication. IC Role / Device Role: System-on-chip handling metrology calculations, LCD driving, and Modbus RTU protocol stack. Use Value: 4 KB data flash supports secure storage of calibration coefficients and lifetime energy logs with 1M write endurance. |
| Wireless Sensor Node Hub | Automotive Body Control Module |
|
Use Scenario: Battery-powered environmental sensor node aggregating temperature, humidity, and CO₂ via I²C. IC Role / Device Role: Low-power coordinator managing sensor polling, data preprocessing, and BLE/Wi-Fi MCU interface. Use Value: 0.60 μA STOP mode with RTC wake-up and 66 μA/MHz active current extend coin-cell battery life beyond 5 years. |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN communication. IC Role / Device Role: LIN slave node executing position feedback, PWM dimming, and fault diagnostics. Use Value: UART2 with hardware LIN support (break detection, sync, ID filtering) ensures robust communication at 19.2 kbps under EMI stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GEAFP#30 | Same core, flash, RAM, and peripherals; differs only in package (48-pin LQFP, 0.8 mm pitch vs. LFQFP 0.5 mm). | Requires PCB redesign due to larger pad pitch and footprint; suitable where legacy LQFP tooling exists. | Select when board layout uses standard 0.8 mm pitch LQFP footprints or requires higher thermal mass. |
| R5F104LEAFB#30 | Same package and pinout; upgraded to 192 KB flash, 20 KB RAM, and 8 KB data flash; identical peripheral set. | Enables larger firmware (e.g., OTA update stack + crypto library) without changing hardware or software drivers. | Select when future firmware expansion headroom or extended data logging is required; drop-in upgrade path. |
Compared with R5F104GEAFB#30, R5F104GEAFP#30 offers mechanical compatibility with legacy LQFP assembly lines but increases board area, while R5F104LEAFB#30 provides scalable memory headroom within the same compact LFQFP-48 footprint-ideal for phased product evolution.
Availability
R5F104GEAFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, and automotive body electronics requiring stable component supply across long production lifecycles.
Supply support for R5F104GEAFB#30 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 industrial, automotive, and IoT markets.
The RL78/G14 family targets cost-sensitive, ultra-low-power general-purpose applications-designed to replace legacy 8-bit MCUs while delivering 16-bit performance and advanced peripheral integration.
FAQ
What is the operating temperature range for the R5F104GEAFB#30?
The R5F104GEAFB#30 is rated for industrial applications with an ambient operating temperature range of −40°C to +105°C (G-grade), validated per JEDEC JESD22-A108. This rating applies across all specified voltage (1.6–5.5 V) and frequency (up to 32 MHz) conditions, making it suitable for under-hood automotive modules and factory-floor controllers.
Does the R5F104GEAFB#30 support in-circuit debugging?
Yes, the R5F104GEAFB#30 supports full on-chip debugging via the single-wire debug (SWD) interface using the Renesas E2 emulator. It includes hardware breakpoints, real-time variable watch, and flash programming capability-all accessible through the dedicated TOOL0/TOOLRxD/TOOLTxD pins without requiring additional debug headers.
How many UART channels does the R5F104GEAFB#30 include, and do they support LIN?
The R5F104GEAFB#30 includes three UART channels: UART0 (P50/P51), UART1 (P00/P01), and UART2 (P13/P14). UART2 supports full LIN 2.2 functionality-including automatic break detection, sync field generation, and identifier filtering-enabling direct connection to LIN transceivers without external logic.
Can the R5F104GEAFB#30 execute code while rewriting data flash memory?
Yes, the R5F104GEAFB#30 supports Background Operation (BGO) for data flash. Code execution continues from main flash memory during data flash erase/write cycles, enabling seamless firmware parameter updates or logging without system interruption or latency spikes.
What is the maximum ADC sampling rate achievable on the R5F104GEAFB#30?
The R5F104GEAFB#30 achieves a maximum ADC conversion time of 1.2 μs per sample (≈833 kSPS) in high-speed mode with internal clock. With sequential scanning of up to 20 channels and hardware-triggered start (e.g., via timer or ELC), sustained throughput exceeds 100 kSPS for multi-channel sensor acquisition.
R5F104GEAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104GEAFB#30 FAQ
1.How can I place an order for R5F104GEAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GEAFB#30 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 R5F104GEAFB#30 reliable?
The price and inventory of R5F104GEAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GEAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104GEAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GEAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GEAFB#30?
R5F104GEAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GEAFB#30 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 R5F104GEAFB#30?
For technical support, including R5F104GEAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GEAFB#30 requirements.
6.How does Aetrix verify that R5F104GEAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104GEAFB#30 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 R5F104GEAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104GEAFB#30?
All R5F104GEAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GEAFB#30, 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 R5F104GEAFB#30 part is unused and in its original packaging.
Return procedure for R5F104GEAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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