Renesas R5F104ECANA#W0

Overview

R5F104ECANA#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 to +85°C (industrial A-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates UART, I²C, CSI, 10-bit ADC (16 channels), RTC, and on-chip debug.

For engineers reviewing the R5F104ECANA#W0 datasheet, R5F104ECANA#W0 pinout, R5F104ECANA#W0 application, or R5F104ECANA#W0 equivalent, key selection criteria include its 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch) footprint, industrial temperature rating, integrated data flash with 1M rewrite cycles, and support for SNOOZE mode for low-power sensor wake-up.

Technical Context

The R5F104ECANA#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). It uses a segmented memory map with 1 MB address space and four register banks.

Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, real-time clock with calendar/alarm, watchdog timer with dedicated low-speed oscillator, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.

Key Specifications

Pinout & Package

Package: HWQFN-40 (6 × 6 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS for thermal and electrical stability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F104EDANA#W0 and R5F104BEANA#W0, the R5F104ECANA#W0 provides optimal balance of memory (48 KB flash), low-power capability, and peripheral richness for mid-tier industrial control - avoiding overdesign while ensuring headroom for field updates and diagnostics.

Availability

R5F104ECANA#W0 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F104ECANA#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, 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 industrial control applications demanding high integration and long-term reliability.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104ECANA#W0?

The R5F104ECANA#W0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs at this speed, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation. This range enables both high-speed control loops and extended battery life in the same design.

Does the R5F104ECANA#W0 support in-system programming and secure firmware updates?

Yes, the R5F104ECANA#W0 supports full in-system programming via its on-chip debug interface and includes boot swap functionality and flash shield window protection. These features allow secure field firmware updates without exposing sensitive code sections, and the self-programming capability eliminates the need for external programmers during production or service.

How many analog input channels and what ADC resolution does the R5F104ECANA#W0 provide?

The R5F104ECANA#W0 integrates a 10-bit successive-approximation ADC with 16 analog input channels (ANI0–ANI15), plus dedicated AVREFP and AVREFM pins for precise ratiometric measurements. It also includes an internal 1.45 V reference voltage and temperature sensor, enabling standalone environmental monitoring without external components.

What low-power modes are available on the R5F104ECANA#W0, and what is the lowest achievable current draw?

The R5F104ECANA#W0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.60 μA at VDD = 1.8–5.5 V and TA = –40 to +85°C. SNOOZE mode allows selected peripherals (e.g., ADC, UART) to operate autonomously while the CPU remains halted, reducing wake-up latency for event-driven applications.

Is the R5F104ECANA#W0 pin-compatible with other RL78/G14 variants in the same package?

Yes, all RL78/G14 devices in the 40-pin HWQFN package (e.g., R5F104EAANA#W0, R5F104EDANA#W0) share identical pinouts and electrical characteristics. This allows direct substitution within the same memory/peripheral configuration tier, simplifying design reuse and migration paths across different flash sizes while maintaining PCB layout compatibility.