Renesas R5F101ECANA#20
- Part No.:
- R5F101ECANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F101ECANA#20.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 40HWQFN
- Quantity:
- Payment:

- Shipping:

Inventory:10,230
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Product details
Overview
R5F101ECANA#20 from Renesas is a 40-pin HWQFN-packaged 16-bit RL78/G13 microcontroller with 64 KB flash, 4 KB data flash, and 2 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), and integrated real-time clock - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101ECANA#20 datasheet, R5F101ECANA#20 pinout, R5F101ECANA#20 application, or R5F101ECANA#20 equivalent, key selection criteria include its 40-pin HWQFN-0.5 mm pitch package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for CSI, UART/LIN, and I²C serial interfaces in resource-constrained embedded control designs.
Technical Context
The R5F101ECANA#20 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 subsystem clock). It integrates a 12-bit interval timer, calendar-capable RTC with alarm and correction, and watchdog timer powered by dedicated low-speed oscillator.
Its peripheral set includes up to 26-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 16-bit timers (12 channels), DMA controller (2 channels), multiplier/divider/MAC unit, and three serial interface types: CSI (SPI-compatible), UART/LIN, and I²C - all configurable without external components for minimal BOM cost.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and compact code footprint for firmware-limited devices. |
| Max Operating Frequency | 32 MHz (41 DMIPS); delivers sufficient compute headroom for sensor fusion, motor control, and protocol stack execution. |
| Memory Configuration | 64 KB code flash / 0 KB data flash / 2 KB RAM; supports self-programming via boot swap but excludes background data flash writes. |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD; enables multi-year operation on coin-cell batteries. |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor; eliminates need for external references in thermal monitoring. |
| Serial Interfaces | CSI (2–8 ch), UART/LIN (2–4 ch), I²C (3–10 ch); provides native support for industrial fieldbus, automotive diagnostics, and sensor hub communication. |
| Operating Temperature | -40°C to +85°C (industrial grade D); qualified for deployment in factory automation, HVAC controls, and outdoor metering enclosures. |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.5-mm pitch), moisture-sensitive level 3, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains enable independent noise filtering; VDD supports 1.6–5.5 V single-supply operation. |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47 | General-purpose I/O ports | Up to 32 programmable pins with N-ch open-drain, TTL input, and pull-up options; supports 1.8/2.5/3.0 V logic interfacing. |
| P20/ANI0/AVREFP, P21/ANI1/AVREFM | Analog input / ADC reference | Dedicated AVREFP/AVREFM pins allow precise ratiometric measurement and external reference injection. |
| P10/SCK00/SCL00, P11/SI00/RxD0/TOOLRxD/SDA00 | Multi-function serial interface | Shared CSI clock/data and I²C SCL/SDA pins reduce pin count while maintaining protocol flexibility. |
| RESET, NMIX | Reset and NMI inputs | Asynchronous reset with built-in POR and LVD; NMIX supports wake-up from STOP mode via external event. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC and LVD active - extends battery life in always-on sensing applications without compromising timekeeping integrity. |
| On-chip debug interface | Single-wire debug (SWD) with flash shield window and boot swap function - enables secure firmware updates and field reprogramming. |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - eliminates need for external RTC IC in time-stamped logging and scheduling systems. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations - accelerates PID control, filter computation, and sensor linearization. |
| Integrated temperature sensor | Calibrated on-die sensor with ±2°C accuracy - provides system-level thermal monitoring without external components. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity node with periodic BLE transmission and local data logging. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-triggered wake-up, low-power sleep transitions, and SPI communication with transceiver. Use Value: 0.57 μA STOP current and 66 μA/MHz active efficiency enable >5-year operation on CR2032; integrated RTC avoids external timing component. |
Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Primary metering MCU handling pulse counting, LCD drive, EEPROM emulation, and LIN/UART-based utility interface. Use Value: 26-channel ADC supports multi-phase voltage/current sensing; LIN compliance enables direct integration into smart grid infrastructure. |
| Home Appliance Control | Building Automation Controller |
|
Use Scenario: Washing machine main board requiring motor phase control, water level sensing, and user interface management. IC Role / Device Role / Timing Role: Real-time motor control unit executing PWM generation, ADC-based current feedback, and touch-button scanning. Use Value: 16-bit timers with dead-time insertion and hardware PWM outputs simplify inverter gate drive; 10-bit ADC resolves analog sensor signals with <1 LSB error. |
Use Scenario: HVAC zone controller with temperature setpoint adjustment, fan speed modulation, and Modbus RTU communication. IC Role / Device Role / Timing Role: Embedded controller running PID loop, driving triac/dimmable LED loads, and managing RS-485 network stack. Use Value: CSI interface directly connects to digital temperature sensors; UART with LIN support allows interoperability with legacy building systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100ECANA#20 | Includes 4 KB data flash; same package, core, and peripherals; higher memory overhead for EEPROM emulation. | Preferred where field firmware updates or parameter storage require persistent non-volatile memory beyond code flash. | Select when data retention during power loss is critical and background data flash writes are needed. |
| RL78/G14 R5F11ECGNA#20 | Enhanced RL78/G14 variant with 128 KB flash, 8 KB RAM, and additional 12-bit ADC channels; same 40-pin HWQFN package. | Better suited for complex control algorithms, larger protocol stacks, or multi-sensor aggregation with higher buffer requirements. | Choose when future scalability, increased RAM, or extended analog capability justifies higher cost and code migration effort. |
Compared with R5F100ECANA#20 and RL78/G14 R5F11ECGNA#20, the R5F101ECANA#20 offers optimal balance of cost, power efficiency, and feature set for fixed-function industrial controllers where data flash is unnecessary and memory headroom is constrained.
Availability
R5F101ECANA#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and home appliance control systems requiring stable component supply across long production lifecycles.
Supply support for R5F101ECANA#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 industrial, automotive, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering high integration, robust qualification, and toolchain maturity for rapid development of certified industrial equipment.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F101ECANA#20?
The R5F101ECANA#20 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs under this condition, enabling responsive real-time control in motor drives and sensor acquisition systems. The R5F101ECANA#20 maintains full peripheral functionality across its entire 1.6–5.5 V supply range.
Does the R5F101ECANA#20 include on-chip data flash memory?
No, the R5F101ECANA#20 does not include on-chip data flash memory. As indicated by the "101" prefix in its part number per Renesas documentation, it belongs to the data-flash-less variant of the RL78/G13 family. It retains 64 KB of code flash and 2 KB of RAM, but users must implement EEPROM emulation in code flash or add external non-volatile memory if parameter storage is required. This distinguishes the R5F101ECANA#20 from the R5F100ECANA#20, which includes 4 KB of data flash.
What package type and pin count does the R5F101ECANA#20 use?
The R5F101ECANA#20 uses a 40-pin HWQFN package measuring 6 × 6 mm with 0.5-mm pitch, designated by the "ANA" suffix and #20 packaging code. This thermally enhanced, space-efficient package supports automated assembly and provides adequate I/O count for mid-complexity control applications. Pin configuration matches other 40-pin RL78/G13 variants, ensuring layout compatibility across the family.
What is the operating temperature range specified for the R5F101ECANA#20?
The R5F101ECANA#20 is rated for industrial operation from -40°C to +85°C, denoted by the "D" suffix in its full ordering code. This qualification meets JEDEC JESD22-A104 reliability standards and supports deployment in factory automation, outdoor metering, and HVAC equipment where ambient conditions exceed commercial-grade limits. It does not support the extended -40°C to +105°C range offered by "G"-suffix variants.
Which serial communication interfaces are supported by the R5F101ECANA#20?
The R5F101ECANA#20 supports three serial interface types: CSI (SPI-compatible, up to 8 channels), UART/LIN (up to 4 channels with LIN 2.2 compliance), and I²C/Simplified I²C (up to 10 channels). These are implemented in hardware with independent clock sources and FIFO buffers, allowing concurrent operation - for example, CSI for sensor readout, UART for host communication, and I²C for display or EEPROM control - without CPU intervention.
R5F101ECANA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- Series:
- RL78/G13
- 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
R5F101ECANA#20 FAQ
1.How can I place an order for R5F101ECANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101ECANA#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 R5F101ECANA#20 reliable?
The price and inventory of R5F101ECANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101ECANA#20 is usually 5 days.
3.What payment methods are accepted for R5F101ECANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101ECANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101ECANA#20?
R5F101ECANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101ECANA#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 R5F101ECANA#20?
For technical support, including R5F101ECANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101ECANA#20 requirements.
6.How does Aetrix verify that R5F101ECANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F101ECANA#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 R5F101ECANA#20 meets industry standards.
7.What is the process for return or replacement of R5F101ECANA#20?
All R5F101ECANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101ECANA#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 R5F101ECANA#20 part is unused and in its original packaging.
Return procedure for R5F101ECANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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