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Renesas R5F104EEGNA#W0
- Part No.:
- R5F104EEGNA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F104EEGNA#W0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,611
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Product details
Overview
R5F104EEGNA#W0 from Renesas is a 40-pin HWQFN-packaged RL78/G14 16-bit microcontroller with 48 KB flash, 5.5 KB RAM, and 4 KB data flash, operating from 1.6–5.5 V at -40°C to +85°C (industrial grade D), delivering 44 DMIPS at 32 MHz for low-power embedded control in sensor nodes and industrial HMI.
For engineers reviewing the R5F104EEGNA#W0 datasheet, R5F104EEGNA#W0 pinout, R5F104EEGNA#W0 application, or R5F104EEGNA#W0 equivalent, key selection criteria include its 66 μA/MHz active current, RTC+LVD ultra-low-power STOP mode (0.60 μA), 10-bit 20-channel ADC, dual UART/LIN support, and hardware DTC/ELC for deterministic real-time peripheral coordination.
Technical Context
The R5F104EEGNA#W0 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), plus multiply/divide/accumulate instructions and 1 MB address space. It integrates a configurable high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable).
Peripheral subsystems include Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar RTC with alarm/correction, watchdog timer, and event-driven control via Event Link Controller (ELC) linking 19–26 event sources to peripherals without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - delivers 44 DMIPS for real-time control loop execution |
| Flash Memory | 48 KB code flash + 4 KB data flash - supports background rewriting (BGO) and 1M write cycles |
| RAM | 5.5 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and sensor fusion variables |
| ADC | 10-bit resolution, 20 analog inputs, internal 1.45 V reference and temperature sensor - enables direct thermistor and voltage monitoring |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD), SNOOZE - extends battery life in intermittent-sensing applications |
| Operating Voltage | 1.6–5.5 V - allows direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level shifters |
| Temp Range | -40°C to +85°C (Industrial D grade) - qualified for factory automation and building control environments |
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 EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit, timer input, and debug clock - enables serial comms and time-triggered debugging |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive and timer output - supports full-duplex UART with hardware timing capture |
| P10–P17 | CSI/UART/I²C/SCL/SDA/TRDIOx | Multiplexed serial interfaces - configurable per channel for SPI-like CSI, UART, or I²C with flexible pin assignment |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | Analog input group with dedicated reference pins - supports simultaneous multi-channel sampling with external or internal references |
| P30 | INTP3 / RTC1HZ / SCK00 / SCL00 | Real-time clock interrupt output and I²C/SPI clock - provides precise 1 Hz wakeup and synchronous peripheral control |
| P50/P51 | RxD0/TxD0 / SI00/SO00 / TOOLRxD/TOOLTxD | Dedicated debug UART and SPI master - enables in-system programming and trace without consuming main UART resources |
| RESET | Active-low reset input | Asynchronous reset with internal POR and LVD - ensures reliable startup under brown-out conditions |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 μF capacitor to VSS - stabilizes internal voltage regulator for noise-immune operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.60 μA with RTC and LVD active - enables years of operation on coin-cell batteries in wireless sensors |
| Data Flash BGO | Background rewriting while executing code - eliminates interrupt latency during firmware updates or logging |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining without CPU - reduces ISR overhead and jitter in motor control loops |
| Dual UART with LIN support | Two independent UART modules with LIN bus physical layer compliance - simplifies automotive body electronics integration |
| On-chip debug interface | Fully integrated with FINE v2 - enables non-intrusive breakpoints, memory inspection, and real-time variable watch |
| Peripheral I/O redirection | PIOR0/PIOR1 registers remap functions to alternate pins - increases layout flexibility and avoids signal congestion |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/CO₂ sensor node transmitting data via UART-to-LoRaWAN gateway. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wakeup scheduling, and UART packet framing. Use Value: 0.60 μA STOP mode with RTC extends 10-year battery life; 10-bit ADC with internal reference eliminates external precision references. |
Use Scenario: Wall-mounted HVAC thermostat with local display, button interface, and RS-485 Modbus communication. IC Role / Device Role / Timing Role: Central MCU handling touch/key scanning, PWM fan control, and dual UART (Modbus + display interface). Use Value: Dual UART with LIN-capable hardware supports both Modbus RTU and proprietary display protocol; 44 DMIPS handles real-time PID computation. |
| Factory Automation I/O Module | Medical Infusion Pump Controller |
|
Use Scenario: DIN-rail mounted digital I/O expansion module with 8-channel opto-isolated inputs and relay outputs. IC Role / Device Role / Timing Role: Real-time I/O coordinator using DTC for automatic GPIO state capture and ELC-triggered output updates. Use Value: DTC offloads bit-banging from CPU; ELC enables sub-μs response between input edge and output assertion - meets SIL-2 timing requirements. |
Use Scenario: Portable infusion pump requiring precise motor control, safety interlocks, and battery management. IC Role / Device Role / Timing Role: Safety-critical controller running dual-redundant watchdogs, LVD-monitored power path, and calibrated ADC for pressure sensing. Use Value: On-chip LVD with 14-level programmability detects supply sag before motor stall; 10-bit ADC with temperature sensor enables drift compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104EGGNA#W0 | 128 KB flash, 16 KB RAM, same 40-pin HWQFN package and peripheral set | Supports larger firmware images and complex protocols (e.g., BLE stack + USB CDC) | Select when future firmware growth or additional protocol stacks are anticipated |
| R5F104CEGNA#W0 | 32 KB flash, 4 KB RAM, identical low-power features and pinout | Targeted at cost-sensitive, function-limited designs (e.g., single-sensor endpoint) | Choose for minimal BOM cost where 48 KB flash headroom is unnecessary |
Compared with R5F104EEGNA#W0, R5F104EGGNA#W0 provides scalable flash/RAM for evolving firmware complexity, while R5F104CEGNA#W0 reduces cost and power in fixed-function deployments - all retain identical packaging, timing, and peripheral compatibility.
Availability
R5F104EEGNA#W0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and factory I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F104EEGNA#W0 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 management solutions for industrial, automotive, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications demanding robust peripheral integration and certified functional safety support.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104EEGNA#W0?
The R5F104EEGNA#W0 operates at up to 32 MHz and delivers 44 DMIPS performance. This benchmark reflects its RL78 CPU core's 3-stage pipeline efficiency and is measured under standard conditions with cache disabled and typical compiler optimization. The R5F104EEGNA#W0 achieves this performance while maintaining 66 μA/MHz active current consumption.
Does the R5F104EEGNA#W0 support background data flash rewriting while executing program code?
Yes, the R5F104EEGNA#W0 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while simultaneously rewriting data flash sectors - critical for over-the-air firmware updates and real-time data logging without interrupting control tasks. The R5F104EEGNA#W0 guarantees 1,000,000 rewrite cycles at VDD = 1.8–5.5 V.
What low-power modes are available on the R5F104EEGNA#W0, and what is the lowest achievable current draw?
The R5F104EEGNA#W0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD enabled, it draws just 0.60 μA - verified across -40°C to +85°C. This ultra-low quiescent current enables multi-year operation on CR2032 batteries in wireless sensor endpoints, and the R5F104EEGNA#W0 retains full register context and RTC functionality during STOP.
How many UART interfaces does the R5F104EEGNA#W0 include, and do they support LIN bus communication?
The R5F104EEGNA#W0 integrates two independent UART modules (UART0 and UART2), both compliant with LIN 2.2 physical layer specifications. Each supports automatic LIN header detection, checksum generation, and slave node response timing - enabling direct implementation of LIN slave nodes in automotive body electronics or industrial networks without external transceivers.
What is the analog-to-digital converter specification for the R5F104EEGNA#W0, including resolution, channel count, and reference options?
The R5F104EEGNA#W0 features a 10-bit successive-approximation ADC with up to 20 input channels. It supports both external reference voltages (AVREFP/AVREFM pins) and an internal 1.45 V reference. The ADC includes a built-in temperature sensor and operates across the full 1.6–5.5 V supply range, making the R5F104EEGNA#W0 suitable for direct sensor interfacing without external precision references.
R5F104EEGNA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- 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:
- 28
- 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):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 9x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104EEGNA#W0 FAQ
1.How can I place an order for R5F104EEGNA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104EEGNA#W0 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 R5F104EEGNA#W0 reliable?
The price and inventory of R5F104EEGNA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104EEGNA#W0 is usually 5 days.
3.What payment methods are accepted for R5F104EEGNA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104EEGNA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104EEGNA#W0?
R5F104EEGNA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104EEGNA#W0 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 R5F104EEGNA#W0?
For technical support, including R5F104EEGNA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104EEGNA#W0 requirements.
6.How does Aetrix verify that R5F104EEGNA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F104EEGNA#W0 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 R5F104EEGNA#W0 meets industry standards.
7.What is the process for return or replacement of R5F104EEGNA#W0?
All R5F104EEGNA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104EEGNA#W0, 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 R5F104EEGNA#W0 part is unused and in its original packaging.
Return procedure for R5F104EEGNA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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