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Renesas R5F104EHANA#20
- Part No.:
- R5F104EHANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F104EHANA#20.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:750
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Product details
Overview
R5F104EHANA#20 from Renesas is a 40-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 128 KB flash, 16 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40°C to +85°C (A-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), and integrates 12-bit ADC (16 channels), UART/SCI/I²C interfaces, and real-time clock with calendar support - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F104EHANA#20 datasheet, R5F104EHANA#20 pinout, R5F104EHANA#20 application, or R5F104EHANA#20 equivalent, key selection criteria include its 40-pin HWQFN-0.5 mm pitch package, 128 KB code flash with self-programming and security lock, integrated 12-bit RTC with alarm/calendar, and dual-voltage I/O compatibility (1.8/2.5/3.0 V interface support).
Technical Context
The RL78 CPU core uses a 3-stage pipeline CISC architecture with configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz), supporting multiply/divide/accumulate operations and 1 MB address space. It includes dedicated low-power modes (HALT, STOP, SNOOZE) and on-chip voltage detector (LVD) with 14 interrupt/reset levels.
Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/repeat transfer and chain function, and background operation (BGO) for concurrent data flash rewriting while executing program code - enabling deterministic real-time response in resource-constrained embedded control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 44 DMIPS @ 32 MHz |
| Flash Memory | 128 KB code flash with 1 KB block erase, security lock, and boot swapping |
| Data Flash | 8 KB with 1,000,000 write cycles, BGO support, and 1.8–5.5 V rewrite voltage |
| RAM | 16 KB on-chip SRAM, including dedicated areas for flash library execution |
| ADC | 12-bit resolution, 16-channel analog input, internal 1.45 V reference and temperature sensor |
| RTC | Real-time clock with calendar (99-year range), alarm, and clock correction function |
| Supply Range | 1.6–5.5 V single supply; operates at 1.8 V minimum for low-voltage systems |
| Operating Temp | -40°C to +85°C (A-grade consumer/industrial ambient) |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS. Pin count and footprint match JEDEC MO-220WEED.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trace clock A - supports debug and serial comms |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; trace clock B - enables full-duplex UART + timing output |
| P10–P17 | SCI/SPI/I²C multi-function ports | Configurable serial interfaces (CSI, UART, I²C) with peripheral I/O redirection - reduces PCB routing complexity |
| P20–P27 | ANI0–ANI7 / AVREFP/M | 8-channel analog input with dedicated reference pins - supports ratiometric sensing without external references |
| P30 | INTP3 / RTC1HZ / SCK00 | RTC 1 Hz output + SPI clock - enables time-stamped data logging and synchronous peripheral control |
| P31 | TI03 / TO03 / INTP4 / PCLBUZ0 | Timer input/output with interrupt and buzzer drive - supports motor commutation or audible alerts |
| P50/P51 | SI00/RxD0/SDA00 & SO00/TxD0 | Secondary UART/I²C/SPI channel with tool interface - enables firmware update via debug port |
| RESET | Active-low reset input | Asynchronous reset with internal POR and LVD - ensures reliable startup under brown-out conditions |
| REGC | Regulator bypass capacitor | Requires 0.47–1 µF capacitor to VSS - critical for internal LDO stability and low-noise operation |
| VDD/VSS | Power supply pins | Single 1.6–5.5 V supply; VSS must connect to exposed die pad - defines operating voltage range and thermal path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP modes | 0.60 μA RTC+LVD retention current enables >10-year battery life in coin-cell applications |
| On-chip high-accuracy oscillator | ±1.0% over 1.8–5.5 V and -20–+85°C - eliminates external crystal for cost-sensitive designs |
| Background data flash rewrite | Execute code from flash while updating data flash - enables field firmware updates without interruption |
| Dual-voltage I/O interface | Direct connection to 1.8 V, 2.5 V, or 3.0 V peripherals - avoids level shifters in mixed-voltage systems |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DMA transfer → interrupt) - reduces CPU load and jitter |
| Peripheral I/O redirection | Dynamic remapping of SCI/I²C/UART functions to alternate pins - improves PCB layout flexibility |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential electricity/water/gas meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and secure data flash storage. Use Value: 128 KB flash stores encryption keys and firmware; RTC calendar enables accurate time-of-use billing; low-power STOP mode extends battery life to 15 years. |
Use Scenario: Wireless temperature/humidity/pressure node in factory automation with local data buffering. IC Role / Device Role / Timing Role: Sensor hub aggregating analog inputs, performing calibration, and scheduling BLE/Wi-Fi transmission bursts. Use Value: 16-channel 12-bit ADC captures multi-sensor data; BGO allows logging to data flash during active comms; 0.60 μA RTC mode enables long sleep between readings. |
| Home Appliance Control | Medical Wearable Monitor |
Use Scenario: Washing machine/microwave with motor control, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time motor timing (TO03), touch-key scanning (KR0–KR3), and fault detection via LVD/ADC. Use Value: Timer array unit (TAU) provides precise PWM for BLDC drives; N-ch open-drain I/O interfaces directly with 5 V display drivers; HALT mode reduces standby power. |
Use Scenario: Portable ECG/SpO₂ monitor with analog front-end, motion compensation, and Bluetooth LE upload. IC Role / Device Role / Timing Role: Analog signal acquisition (ANI0–ANI7), real-time digital filtering, and secure data flash storage of patient history. Use Value: Internal 1.45 V reference ensures stable ADC accuracy across battery discharge; 8 KB data flash retains 72 hrs of waveform data; ±1.0% oscillator meets medical timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GHANA#20 | 192 KB flash, 20 KB RAM, same 40-pin HWQFN package and peripheral set | Higher code density for complex protocol stacks (e.g., Zigbee SE, DLMS) | Select when firmware exceeds 128 KB or requires larger RAM buffers for network stack |
| R5F104EGANA#20 | 64 KB flash, 5.5 KB RAM, identical package and core architecture | Lower memory footprint for simple control-only tasks (e.g., LED driver, basic timer) | Choose for cost-sensitive, minimal-feature applications where 128 KB is unnecessary |
Compared with R5F104EHANA#20, R5F104GHANA#20 offers scalable code space for future firmware expansion without PCB change, while R5F104EGANA#20 reduces BOM cost where memory headroom is not required - both share identical pinout, timing, and peripheral configuration.
Availability
R5F104EHANA#20 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle assurance, and Renesas-authorized traceability.
Supply support for R5F104EHANA#20 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 automotive, industrial, and IoT markets.
The RL78/G14 family targets general-purpose embedded control with emphasis on ultra-low power, integrated analog, and secure firmware execution - designed for cost-sensitive, battery-operated, and safety-aware applications.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104EHANA#20?
The R5F104EHANA#20 operates up to 32 MHz with a maximum performance of 44 DMIPS. Its RL78 CPU core achieves this using a 3-stage pipeline and supports high-speed on-chip oscillator options including 32 MHz with ±1.0% accuracy across 1.8–5.5 V supply and -20°C to +85°C ambient - enabling deterministic real-time control without external clock components. The R5F104EHANA#20 maintains full peripheral functionality at all supported frequencies.
Does the R5F104EHANA#20 support in-system programming and secure firmware updates?
Yes, the R5F104EHANA#20 supports full in-system programming via its on-chip debug interface and includes flash shield window, block erase prohibition, and boot swapping capabilities. These features allow secure field firmware updates while protecting intellectual property and preventing unauthorized reprogramming - critical for certified smart metering and industrial control deployments using the R5F104EHANA#20.
How many analog input channels does the R5F104EHANA#20 provide, and what ADC resolution is supported?
The R5F104EHANA#20 integrates a 12-bit successive approximation ADC with up to 16 analog input channels (ANI0–ANI15, plus ANI16–ANI19 on specific pins). It includes an internal 1.45 V reference voltage and on-die temperature sensor, enabling accurate ratiometric measurements without external references - a key capability confirmed in the R5F104EHANA#20 datasheet for sensor interface applications.
What low-power modes are available on the R5F104EHANA#20, and what is the lowest achievable current draw?
The R5F104EHANA#20 supports HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it draws just 0.60 μA typical - verified in the RL78/G14 datasheet under TA = 25°C, VDD = 3.0 V. This enables decade-long battery operation in applications such as utility meters and remote sensors using the R5F104EHANA#20.
Is the R5F104EHANA#20 pin-compatible with other RL78/G14 variants in the same package?
Yes, the R5F104EHANA#20 is fully pin-compatible with all other 40-pin HWQFN RL78/G14 variants (e.g., R5F104GHANA#20, R5F104EGANA#20) sharing the NA package code. Pin functions, electrical characteristics, and mechanical footprint are identical - allowing direct substitution within the same memory/feature tier without PCB revision, as confirmed by Renesas' ordering information and pin configuration documentation for the R5F104EHANA#20.
R5F104EHANA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- 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:
- 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#20 FAQ
1.How can I place an order for R5F104EHANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104EHANA#20 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#20 reliable?
The price and inventory of R5F104EHANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104EHANA#20 is usually 5 days.
3.What payment methods are accepted for R5F104EHANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104EHANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104EHANA#20?
R5F104EHANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104EHANA#20 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#20?
For technical support, including R5F104EHANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104EHANA#20 requirements.
6.How does Aetrix verify that R5F104EHANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F104EHANA#20 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#20 meets industry standards.
7.What is the process for return or replacement of R5F104EHANA#20?
All R5F104EHANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104EHANA#20, 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#20 part is unused and in its original packaging.
Return procedure for R5F104EHANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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