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Renesas R5F101EHANA#U0
- Part No.:
- R5F101EHANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F101EHANA#U0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,292
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Product details
Overview
R5F101EHANA#U0 from Renesas is a 40-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, and 2 KB RAM, operating from 1.6 V to 5.5 V. It delivers 41 DMIPS at 32 MHz, features ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 10-bit ADC (26 channels), RTC, UART, I²C, SPI, and 16-bit timers for embedded control in battery-powered and industrial sensing applications.
For engineers reviewing the R5F101EHANA#U0 datasheet, R5F101EHANA#U0 pinout, R5F101EHANA#U0 application, or R5F101EHANA#U0 equivalent, key selection criteria include its data flash absence (vs. R5F100x series), 40-pin HWQFN-0.5mm pitch package, -40°C to +85°C industrial temperature grade (D-grade), and support for background data flash rewriting and on-chip debug.
Technical Context
The R5F101EHANA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory map spans 1 MB address space, with dedicated SFR regions enabling efficient peripheral access.
Power management includes HALT, STOP, and SNOOZE modes, plus an on-chip voltage detector (LVD) with 14 selectable threshold levels and POR circuitry. The device supports DMA transfers in just 2 clocks between SFRs and RAM, and includes a 16×16→32-bit multiplier/accumulator for real-time signal processing tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control |
| Flash Memory | 64 KB code flash - supports self-programming with boot swap and flash shield window |
| Data Flash | None - R5F101x series omits data flash; use external EEPROM or code flash sectors for nonvolatile storage |
| RAM Size | 2 KB on-chip RAM - sufficient for RTOS stacks and small buffer allocations |
| ADC Resolution & Channels | 10-bit SAR ADC with up to 26 analog inputs - enables multi-sensor monitoring without external mux |
| Operating Voltage | 1.6 V to 5.5 V - supports direct Li-ion, 3.3 V, and 5 V system rails without level-shifting |
| Temp Range | -40°C to +85°C (D-grade) - qualified for industrial ambient environments |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.5-mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main digital supply (1.6–5.5 V); decoupling required per Renesas layout guidelines |
| VSS | GND reference | Digital ground plane connection; tied to thermal pad for thermal dissipation |
| P00–P07 | General-purpose I/O | 8-bit port with N-ch open-drain option, TTL input buffer, and pull-up resistors |
| P10/P11 | SPI/I²C/UART interface | Multi-function pins supporting SCK00/SCL00, SI00/RxD0, SO00/TxD0, and TOOLRxD |
| P20–P27 | Analog input / reference | Includes ANI0–ANI7, AVREFP/AVREFM - supports 10-bit ADC with internal 1.45 V reference |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced pushbutton or supervisor IC |
| CLKP/CLKM | Crystal oscillator terminals | Supports 32.768 kHz crystal for RTC or external clock source up to 20 MHz |
| EXCLK | External clock input | Accepts CMOS-level clock (1–20 MHz) for precise timing or jitter-sensitive applications |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current and 0.57 μA RTC+LVD retention enables >10-year battery life in sensor nodes |
| On-chip debug interface | Fully integrated E1/E20 emulator support via single-wire SWD - no external debug probe required |
| Background data operations | Code flash executes while data flash is rewritten - ensures uninterrupted real-time task execution |
| Flexible clock system | High-accuracy on-chip oscillator (±1.0% from 1.8–5.5 V) eliminates need for external crystal in cost-sensitive designs |
| Industrial-grade peripherals | RTC with calendar, alarm, and clock correction; 16-bit timers with dead-time insertion for motor control |
| Different-potential I/O | GPIOs tolerate 1.8 V, 2.5 V, and 3 V logic levels - simplifies interfacing with mixed-voltage subsystems |
Applications
| Smart Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered gas/water meter with pulse counting, temperature compensation, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, RTC-based timestamping, low-power wake-up, and UART-to-LoRaWAN bridge. Use Value: 0.57 μA STOP mode extends 2xAA battery life beyond 15 years; 10-bit ADC resolves ±0.1°C thermistor readings. |
Use Scenario: DIN-rail mounted environmental monitor measuring humidity, CO₂, and vibration in factory settings. IC Role / Device Role / Timing Role: Central data aggregator with I²C sensor hub, UART diagnostics, and watchdog-triggered fault recovery. Use Value: -40°C to +85°C rating ensures reliability in unconditioned enclosures; 16-bit timer captures vibration period with 31.25 ns resolution. |
| Home Appliance Control | Medical Diagnostic Device |
|
Use Scenario: Washing machine main board controlling motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: Real-time motor commutation sequencer using PWM outputs and ADC feedback loops. Use Value: 41 DMIPS handles PID loop updates at 10 kHz; SNOOZE mode reduces power during idle spin cycles. |
Use Scenario: Portable blood glucose meter requiring precision analog measurement and secure firmware updates. IC Role / Device Role / Timing Role: Safety-critical measurement engine with calibrated ADC, LVD supervision, and flash shield window protection. Use Value: On-chip 1.45 V reference enables ±0.5% glucose reading accuracy; flash security prevents unauthorized firmware modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100EHANA#U0 | Same package and pinout, but includes 4 KB data flash and higher current consumption (72 μA/MHz) | Preferred where frequent nonvolatile parameter logging is required without external memory | Select when data flash persistence outweighs ultra-low-power requirements |
| RL78/G14 R5F104BAANA#U0 | Enhanced RL78/G14 core, 128 KB flash, 12 KB RAM, same 40-pin HWQFN, but adds CAN 2.0B interface | Required for automotive body electronics or industrial networks needing CAN bus integration | Choose when CAN communication or larger code footprint is mandatory |
Compared with R5F100EHANA#U0, the R5F101EHANA#U0 trades data flash for lower active current and reduced BOM cost; versus RL78/G14, it offers proven maturity and lower gate count for cost-constrained industrial control where CAN is unnecessary.
Availability
R5F101EHANA#U0 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 industrial-temperature qualification.
Supply support for R5F101EHANA#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, and power solutions for industrial, automotive, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - emphasizing energy efficiency, integrated peripherals, and seamless toolchain compatibility with e² studio and CS+.
FAQ
What is the flash memory configuration of the R5F101EHANA#U0?
The R5F101EHANA#U0 contains 64 KB of on-chip code flash memory and no dedicated data flash memory - unlike the R5F100x series. This design reduces cost and power consumption while retaining full self-programming capability via boot swap and flash shield window functions. Code flash sectors may be allocated for parameter storage if needed, though write endurance is lower than dedicated data flash.
Does the R5F101EHANA#U0 support real-time clock functionality?
Yes, the R5F101EHANA#U0 integrates a full-featured real-time clock (RTC) with calendar support for 99 years, alarm interrupt generation, and hardware clock correction. It operates independently in STOP mode using the 32.768 kHz sub-system clock, consuming only 0.57 μA - making it ideal for time-stamped logging and scheduled wake-up in battery-powered systems.
What package type and pin count does the R5F101EHANA#U0 use?
The R5F101EHANA#U0 uses a 40-pin HWQFN package (6 × 6 mm, 0.5-mm pitch) with an exposed thermal pad. This compact, surface-mount package supports high-density PCB layouts and provides excellent thermal performance for industrial ambient conditions up to +85°C.
How does the R5F101EHANA#U0 handle low-power operation?
The R5F101EHANA#U0 implements three ultra-low-power modes: HALT (core stopped, peripherals active), STOP (all clocks halted except RTC), and SNOOZE (peripheral-triggered wake-up with minimal latency). Its 66 μA/MHz active current and 0.57 μA STOP mode current enable multi-year battery life in always-on sensor applications - verified across the full -40°C to +85°C range.
Is the R5F101EHANA#U0 pin-compatible with other RL78/G13 devices?
Yes, the R5F101EHANA#U0 shares identical pinout and package with all 40-pin HWQFN variants in the RL78/G13 family, including R5F100x and R5F101x series. However, functional differences exist - notably the absence of data flash in R5F101x parts - so firmware and hardware design must verify peripheral availability and memory mapping before substitution.
R5F101EHANA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- Series:
- RL78/G13
- 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:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 9x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101EHANA#U0 FAQ
1.How can I place an order for R5F101EHANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101EHANA#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 R5F101EHANA#U0 reliable?
The price and inventory of R5F101EHANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101EHANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F101EHANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101EHANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101EHANA#U0?
R5F101EHANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101EHANA#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 R5F101EHANA#U0?
For technical support, including R5F101EHANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101EHANA#U0 requirements.
6.How does Aetrix verify that R5F101EHANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F101EHANA#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 R5F101EHANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F101EHANA#U0?
All R5F101EHANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101EHANA#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 R5F101EHANA#U0 part is unused and in its original packaging.
Return procedure for R5F101EHANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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