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Renesas R5F104EHANA#U0
- Part No.:
- R5F104EHANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F104EHANA#U0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,473
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Product details
Overview
R5F104EHANA#U0 from Renesas is a 40-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 128 KB flash, 16 KB RAM, 8 KB data flash, 32 MHz max CPU speed, and ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD mode), targeting battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F104EHANA#U0 datasheet, R5F104EHANA#U0 pinout, R5F104EHANA#U0 application, or R5F104EHANA#U0 equivalent, key selection criteria include its 40-pin 6×6 mm HWQFN package, integrated 10-bit 20-channel ADC, dual UART/LIN support, and hardware DTC/ELC for deterministic low-power peripheral coordination.
Technical Context
The R5F104EHANA#U0 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), and includes multiply/divide/accumulate instructions within a 1 MB address space. It integrates a high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable) and operates across -40°C to +85°C (A-grade).
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, Real-Time Clock with calendar/alarm, 12-bit interval timer, 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 performance for real-time control tasks |
| Memory | 128 KB code flash / 16 KB RAM / 8 KB data flash - supports background rewriting and 1M-cycle endurance |
| ADC | 10-bit resolution, 20-channel SAR ADC with internal 1.45 V reference and temperature sensor |
| Low-Power Modes | HALT, STOP, SNOOZE - achieves 0.60 μA in RTC+LVD-only operation for multi-year battery life |
| Supply Range | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V logic and single-supply sensor systems |
| Peripherals | 3 UART/LIN, 4–10 I²C, 3–8 CSI, 8–12 × 16-bit timers, DTC, ELC, comparator, DAC |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch) with exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit output and timer input; supports trace clock generation |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive input and timer output; enables synchronized debugging |
| P10–P17 | CSI/I²C/UART/SCL/SDA/SO/SI pins | Multi-function serial interface group supporting concurrent SPI, I²C, and LIN protocols |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | Analog input bank with dedicated reference voltage pins for precision 10-bit ADC measurements |
| P30–P31 | RTC1HZ / SCK00 / INTP3 / TI03 / TO03 | Real-time clock output and timer I/O with interrupt capability for time-critical wake-up events |
| P50–P51 | RxD0 / TxD0 / TOOLRxD / TOOLTxD / INTP1 / INTP2 | Dedicated debug UART channel with tool interface compatibility and interrupt routing |
| P60–P62 | SCLA0 / SDAA0 / SSI00 | I²C master/slave interface and synchronous serial interface for EEPROM or sensor communication |
| P120–P122 | VCOUT0 / X1 / X2 / EXCLK | Crystal oscillator inputs and external clock input for precise timing or low-jitter system clock |
| RESET / REGC / VDD / VSS | Reset control / regulator capacitor / power rails | On-chip POR/LVD reset with external capacitor filtering ensures robust brown-out recovery |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Power HALT/STOP/SNOOZE modes | Enables sub-μA sleep current with fast wake-up (< 4 μs), critical for energy-harvesting nodes |
| Hardware Data Transfer Controller (DTC) | Offloads CPU from memory-to-peripheral transfers, reducing active time and power in sensor readout |
| Event Link Controller (ELC) | Allows autonomous peripheral triggering (e.g., ADC conversion → DMA transfer → UART TX) without CPU involvement |
| Self-programming flash with boot swap | Supports secure over-the-air firmware updates with rollback capability and flash shield window protection |
| Integrated 10-bit ADC with temp sensor & ref | Eliminates external components for environmental monitoring and supply voltage supervision |
| Multiple UART/LIN channels with hardware LIN bus support | Enables direct connection to automotive body control modules or industrial fieldbus gateways |
Applications
| Smart Utility Meter Interface | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Communicating with metrology ICs and PLC backhaul via UART/LIN while logging data to internal flash. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, RTC-stamped data storage, and bidirectional LIN protocol stack. Use Value: 8 KB data flash enables 10+ years of hourly temperature/humidity logs without external memory; SNOOZE mode extends AA battery life beyond 5 years. | Use Scenario: Battery-powered wireless node measuring ambient temperature and reporting via UART to LoRaWAN gateway. IC Role / Device Role / Timing Role: Low-power sensor hub performing ADC acquisition, calibration, and burst-mode RF transmission scheduling. Use Value: On-chip temperature sensor + 10-bit ADC eliminates external sensing IC; 0.60 μA RTC+LVD mode enables >10-year shelf life before deployment. |
| Home Appliance Motor Control | Programmable Logic Controller I/O Module |
Use Scenario: Driving BLDC fan motors in HVAC systems using PWM outputs and monitoring current feedback via ADC. IC Role / Device Role / Timing Role: Real-time motor commutation controller with fault detection (overcurrent, thermal) and safety shutdown. Use Value: TAU timers provide precise 3-phase PWM with dead-time insertion; built-in LVD prevents erratic behavior during brown-out conditions. | Use Scenario: DIN-rail mounted module converting 24 V DC industrial inputs to isolated digital signals for PLC main unit. IC Role / Device Role / Timing Role: Isolated I/O conditioner with opto-coupler interface, status LED control, and diagnostic UART reporting. Use Value: 40-pin HWQFN provides sufficient GPIO (26–92 configurable) for 8-channel discrete I/O; wide 1.6–5.5 V supply tolerates field wiring variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GHANA#U0 | 192 KB flash / 20 KB RAM / same 40-pin HWQFN package / identical peripheral set | Higher code density for complex protocol stacks (e.g., Modbus TCP offload) or larger GUI buffers | Select when firmware exceeds 128 KB or requires extended data logging capacity |
| R5F104EHAFP#V0 | Same 128 KB/16 KB/8 KB memory / 44-pin LQFP (10×10 mm) / 0.8 mm pitch / -40°C to +85°C | Larger footprint allows easier hand-soldering and higher-voltage I/O routing in industrial PCBs | Choose for prototyping, manual assembly, or designs requiring greater creepage/clearance |
Compared with R5F104GHANA#U0, the R5F104EHANA#U0 trades flash/RAM headroom for cost-sensitive volume production; versus R5F104EHAFP#V0, it offers 25% smaller board area and improved thermal dissipation via exposed pad, at the expense of rework flexibility.
Availability
R5F104EHANA#U0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and programmable logic controller I/O modules requiring stable component supply and long-term manufacturability.
Supply support for R5F104EHANA#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 delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and energy-efficient industrial control and sensing applications.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104EHANA#U0?
The R5F104EHANA#U0 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. Its RL78 CPU core supports variable instruction execution times-from 0.03125 μs at full speed to 30.5 μs in ultra-low-speed 32.768 kHz mode-enabling dynamic power/performance scaling. This makes the R5F104EHANA#U0 suitable for both responsive real-time control and extended battery-life applications.
Does the R5F104EHANA#U0 support hardware-based UART auto-baud detection for LIN communication?
Yes, the R5F104EHANA#U0 includes dedicated LIN bus support in its UART peripherals, enabling hardware-assisted LIN 2.2 compliance including sync field detection, checksum calculation, and automatic baud rate adjustment based on received break fields. This reduces CPU overhead and improves timing accuracy in automotive body electronics and industrial fieldbus implementations using the R5F104EHANA#U0.
How does the R5F104EHANA#U0 manage power during deep-sleep modes with RTC and LVD active?
The R5F104EHANA#U0 achieves 0.60 μA typical current consumption in STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) enabled. This is accomplished through segmented power gating, retention of only essential registers, and use of the ultra-low-frequency subsystem clock. The R5F104EHANA#U0 maintains calendar functionality, alarm interrupts, and brown-out monitoring without waking the CPU-ideal for decade-long deployments in utility meters and environmental monitors.
Can the R5F104EHANA#U0 perform simultaneous ADC conversions and flash writes without CPU intervention?
Yes, the R5F104EHANA#U0 supports background operation via its Data Transfer Controller (DTC) and Data Flash BGO (Background Operation) feature. ADC conversion completion can trigger DTC to move results to RAM, while the CPU concurrently executes flash write routines-including self-programming with boot swap-to non-active flash blocks. This enables seamless data logging and firmware updates without interrupt latency or performance penalty in the R5F104EHANA#U0.
What packaging and lead-free compliance details apply to the R5F104EHANA#U0?
The R5F104EHANA#U0 uses a 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch) with an exposed die pad, RoHS-compliant and lead-free per JEDEC J-STD-020. The #U0 suffix indicates tray packaging per Renesas standard. Its HWQFN construction provides superior thermal performance over QFP alternatives and supports automated reflow assembly with IPC-A-610 Class 2/3 process compatibility for the R5F104EHANA#U0.
R5F104EHANA#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:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K 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:
R5F104EHANA#U0 FAQ
1.How can I place an order for R5F104EHANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104EHANA#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 R5F104EHANA#U0 reliable?
The price and inventory of R5F104EHANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104EHANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104EHANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104EHANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104EHANA#U0?
R5F104EHANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104EHANA#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 R5F104EHANA#U0?
For technical support, including R5F104EHANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104EHANA#U0 requirements.
6.How does Aetrix verify that R5F104EHANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104EHANA#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 R5F104EHANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104EHANA#U0?
All R5F104EHANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104EHANA#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 R5F104EHANA#U0 part is unused and in its original packaging.
Return procedure for R5F104EHANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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