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Renesas R5F104EGANA#U0
- Part No.:
- R5F104EGANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F104EGANA#U0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,441
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Product details
Overview
R5F104EGANA#U0 from Renesas is a 40-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V. It delivers 44 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (0.60 μA RTC+LVD), and integrates 10-bit ADC (20 ch), UART/SPI/I²C interfaces, RTC, and on-chip oscillators for industrial sensor control and battery-powered HMI applications.
For engineers reviewing the R5F104EGANA#U0 datasheet, R5F104EGANA#U0 pinout, R5F104EGANA#U0 application, or R5F104EGANA#U0 equivalent, key selection criteria include its 40-pin 6×6 mm HWQFN package, -40°C to +85°C industrial temperature grade (A-field), 96 KB code flash with self-programming, and integrated event link controller (ELC) for deterministic peripheral triggering without CPU intervention.
Technical Context
The R5F104EGANA#U0 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 embeds a Data Transfer Controller (DTC) for autonomous memory transfers triggered by interrupts and an Event Link Controller (ELC) enabling direct hardware-to-peripheral signal routing across 19–26 event types.
Its power management includes on-chip POR, selectable 14-level LVD with interrupt/reset capability, and multiple low-power modes-HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active), and SNOOZE-enabling precise trade-offs between wake-up latency and energy consumption in duty-cycled systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and efficient code density. |
| Max Clock Speed | 32 MHz; delivers 44 DMIPS for mid-complexity control algorithms with low latency. |
| Flash Memory | 96 KB code flash + 8 KB data flash; supports background operation (BGO) and 1M rewrite cycles for firmware updates and parameter storage. |
| RAM | 12 KB on-chip RAM; sufficient for stack, heap, and real-time buffers in sensor fusion or protocol stacks. |
| ADC | 10-bit resolution, 20-channel SAR ADC with internal 1.45 V reference and temperature sensor; enables direct analog sensing without external components. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD), SNOOZE; extends battery life in portable and remote monitoring devices. |
| Operating Voltage | 1.6–5.5 V single supply; simplifies power design and supports direct connection to Li-ion, coin cell, or 3.3/5 V rails. |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit and timer input; supports asynchronous communication and precise timing capture. |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive and timer output; enables full-duplex serial interface with hardware timing generation. |
| P10–P17 | CSI/UART/I²C/SCL/SDA/TRDIx | Multiplexed serial interface pins; configurable per channel for SPI master/slave, UART, or I²C with flexible pin assignment via PIOR registers. |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | Analog input channels with dedicated reference pins; supports simultaneous sampling and differential measurements for precision sensing. |
| P30–P31 | INTP3 / RTC1HZ / SCK00 / TI03 / TO03 | Real-time clock output and timer I/O; provides accurate timekeeping and PWM generation independent of main CPU load. |
| P50–P51 | RxD0 / TxD0 / SI00 / SO00 / TOOLRxD / TOOLTxD | Dedicated debug UART and serial interface; enables in-system programming and trace without consuming primary peripherals. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; ensures reliable initialization after power-up or brownout. |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply with decoupling via REGC capacitor; reduces BOM count and layout complexity. |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming with boot swap | Enables field firmware updates with zero downtime and rollback safety via dual-bank flash management. |
| Event Link Controller (ELC) | Eliminates CPU polling by directly linking peripheral events (e.g., ADC EOC → DMA trigger), reducing interrupt latency and CPU load. |
| Background Operation (BGO) | Allows full program execution from flash while rewriting data flash-critical for logging or configuration updates during runtime. |
| On-chip high-accuracy oscillator | ±1.0% accuracy over -20 to +85°C at 1.8–5.5 V; removes need for external crystal in cost-sensitive applications. |
| Hardware CRC calculator | Accelerates checksum computation for firmware integrity verification and secure boot without software overhead. |
Applications
| Industrial Sensor Node | Smart Thermostat HMI |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor node transmitting data via UART-to-LoRaWAN gateway. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake-up scheduling, and UART protocol framing. Use Value: 0.60 μA STOP mode with RTC extends 2xAA battery life to >5 years; 10-bit ADC with internal reference eliminates external voltage reference IC. | Use Scenario: Residential HVAC thermostat with capacitive touch keys, LCD display, and local PID control. IC Role / Device Role / Timing Role: Central MCU handling touch scan, display refresh, sensor reading, and real-time heating/cooling actuation. Use Value: ELC links touch interrupt → DMA → LCD buffer update, achieving <10 ms UI response; 12 KB RAM supports graphics framebuffer and control algorithm state. |
| Programmable Logic Controller (PLC) I/O Module | Energy Meter Communication Interface |
Use Scenario: DIN-rail mounted digital I/O expansion module with opto-isolated inputs/outputs and RS-485 backhaul. IC Role / Device Role / Timing Role: Isolation-side controller managing GPIO state, pulse counting, and Modbus RTU over UART. Use Value: 20-channel ADC monitors auxiliary analog inputs (e.g., 4–20 mA loops); SNOOZE mode allows fast wake-on-input-change with sub-μs latency. | Use Scenario: Smart electricity meter using optical port or RF module for AMI communication and tariff switching. IC Role / Device Role / Timing Role: Secure communication co-processor handling AES encryption, UART/IRDA physical layer, and RTC-based billing interval triggers. Use Value: 8 KB data flash stores encrypted tariff tables and usage logs with 1M write endurance; hardware CRC ensures firmware image integrity during OTA updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104FGANA#U0 | 128 KB flash, 16 KB RAM, same 40-pin HWQFN package and peripheral set. | Supports larger firmware (e.g., embedded web server, multi-protocol stack) without PCB change. | Select when future firmware growth or additional feature integration is anticipated. |
| R5F104EGAFP#V0 | Same 96 KB flash/12 KB RAM spec but in 44-pin LQFP (10×10 mm, 0.8 mm pitch) package. | Offers more GPIOs (92 vs. 64) and easier hand-soldering/test access; requires PCB redesign. | Choose for prototyping, test fixtures, or designs needing extra I/O without footprint constraints. |
Compared with R5F104EGANA#U0, R5F104FGANA#U0 provides headroom for firmware expansion within identical mechanical and thermal constraints, while R5F104EGAFP#V0 trades compactness for I/O scalability and assembly flexibility-neither is pin-compatible, but both share identical register mapping and toolchain support.
Availability
R5F104EGANA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat HMIs, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F104EGANA#U0 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 targets cost-sensitive, ultra-low-power general-purpose applications-designed to replace legacy 8-bit MCUs with enhanced performance, integrated peripherals, and simplified power architecture.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104EGANA#U0?
The R5F104EGANA#U0 operates up to 32 MHz, delivering 44 DMIPS of processing performance. Its RL78 CPU core achieves this with a 3-stage pipeline and supports variable instruction execution times-from 0.03125 μs at full speed to 30.5 μs in ultra-low-speed mode-enabling dynamic power/performance scaling. This makes the R5F104EGANA#U0 suitable for real-time control tasks where deterministic timing and energy efficiency are both critical.
Does the R5F104EGANA#U0 support in-system programming and secure firmware updates?
Yes, the R5F104EGANA#U0 supports full in-system programming via its on-chip debug interface and UART-based bootloader. It includes self-programming capabilities with boot swap functionality and flash shield window protection, allowing safe field updates with rollback capability. The R5F104EGANA#U0 also integrates a hardware CRC calculator to verify firmware image integrity before execution-essential for secure and reliable over-the-air or wired updates.
What low-power modes are available on the R5F104EGANA#U0, and what is the lowest current draw achievable?
The R5F104EGANA#U0 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it draws just 0.60 μA-verified across -40°C to +85°C. HALT mode consumes 66 μA per MHz, and SNOOZE enables selective peripheral operation while CPU sleeps. These modes are controlled via dedicated system registers and supported by the on-chip power management unit, making the R5F104EGANA#U0 ideal for battery-powered applications demanding multi-year operation.
Can the R5F104EGANA#U0 operate without an external crystal oscillator?
Yes, the R5F104EGANA#U0 includes a high-accuracy on-chip oscillator (HOCO) with ±1.0% tolerance across 1.8–5.5 V and -20°C to +85°C-sufficient for UART communication, RTC calibration, and most control applications. It supports frequencies from 1 MHz to 64 MHz, selectable in software. An external crystal is optional and only required for applications needing tighter timing accuracy (e.g., USB, audio clocks, or IEEE 1588 synchronization), which the R5F104EGANA#U0 does not support.
How many analog input channels and what ADC resolution does the R5F104EGANA#U0 provide?
The R5F104EGANA#U0 integrates a 10-bit successive approximation register (SAR) ADC with up to 20 analog input channels (ANI0–ANI19). It includes internal reference voltages (1.45 V) and a calibrated temperature sensor, eliminating the need for external references in most sensing applications. Conversion time is 1.6 μs per sample, and the ADC supports scan mode, group conversion, and hardware-triggered operation via ELC-making the R5F104EGANA#U0 well-suited for multi-sensor data acquisition in industrial and environmental monitoring systems.
R5F104EGANA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- 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:
- 28
- 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 9x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104EGANA#U0 FAQ
1.How can I place an order for R5F104EGANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104EGANA#U0 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 R5F104EGANA#U0 reliable?
The price and inventory of R5F104EGANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104EGANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104EGANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104EGANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104EGANA#U0?
R5F104EGANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104EGANA#U0 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 R5F104EGANA#U0?
For technical support, including R5F104EGANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104EGANA#U0 requirements.
6.How does Aetrix verify that R5F104EGANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104EGANA#U0 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 R5F104EGANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104EGANA#U0?
All R5F104EGANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104EGANA#U0, 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 R5F104EGANA#U0 part is unused and in its original packaging.
Return procedure for R5F104EGANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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