Renesas R5F104EAANA#20

Overview

R5F104EAANA#20 from Renesas is a 40-pin HWQFN-packaged RL78/G14 16-bit microcontroller with 64 KB flash, 4 KB data flash, 5.5 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD mode) for battery-powered industrial control and sensor interface applications.

For engineers reviewing the R5F104EAANA#20 datasheet, R5F104EAANA#20 pinout, R5F104EAANA#20 application, or R5F104EAANA#20 equivalent, key selection criteria include its 40-pin 6×6 mm HWQFN package, 64 KB code flash with self-programming support, integrated 10-bit ADC (20-channel), real-time clock with calendar, and dual UART/LIN interfaces for embedded telemetry and motor control systems.

Technical Context

The R5F104EAANA#20 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), and includes multiply/divide/accumulate instructions. It integrates a Data Transfer Controller (DTC) and Event Link Controller (ELC) for autonomous peripheral coordination without CPU intervention.

Its mixed-signal peripherals include an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, two 8-bit DAC channels (0–VDD output), up to two comparators with window mode, and 16-bit Timer Array Unit (TAU) with 8 channels - all operating across 1.6–5.5 V supply and −40 to +85°C ambient range.

Key Specifications

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-220 variant PWQN0040KD-A.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F104EBANA#20 and R5F104EDANA#20, the R5F104EAANA#20 delivers optimal balance of memory (64 KB flash / 4 KB data flash), ultra-low-power operation, and full peripheral set - making it ideal for mid-complexity industrial edge nodes where code size exceeds 48 KB but does not require 96 KB headroom.

Availability

R5F104EAANA#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart building controllers, and motor interface modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for R5F104EAANA#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, 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 industrial and consumer equipment requiring robust peripheral integration and long-term supply assurance.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F104EAANA#20?

The R5F104EAANA#20 operates up to 32 MHz with a typical active current of 66 μA/MHz at VDD = 3.3 V and TA = 25°C. At full speed, this equates to ~2.1 mA total supply current. Its ultra-low-power STOP mode draws only 0.60 μA with RTC and LVD active - verified per R01DS0053EJ0370 Rev. 3.70 Section 1.1.

Does the R5F104EAANA#20 support in-system programming and secure firmware updates?

Yes, the R5F104EAANA#20 supports self-programming with boot swapping and flash shield window protection. It enables secure firmware updates via UART or other serial interfaces while running application code, with block-level erase prohibition to prevent unauthorized modification of protected sectors - detailed in Section 1.1 "Code Flash Memory" of the datasheet.

What are the analog capabilities of the R5F104EAANA#20, and how many channels can be used simultaneously?

The R5F104EAANA#20 integrates a 10-bit ADC with up to 20 analog input channels (ANI0–ANI19), internal 1.45 V reference, and on-die temperature sensor. All 20 channels are hardware-mapped and can be scanned sequentially in a single conversion sequence; simultaneous sampling is not supported, but scan times are sub-μs per channel at max clock rates.

Can the R5F104EAANA#20 operate from a 1.8 V supply, and what features remain functional at that voltage?

Yes, the R5F104EAANA#20 supports 1.6–5.5 V operation. At 1.8 V, all core functions remain active including 32 MHz operation (via high-speed on-chip oscillator), 64 KB flash read/write, 10-bit ADC (with internal reference), RTC, and UART/LIN - confirmed in Section 1.1 "Ultra-Low Power Consumption Technology" and Table 1-1 of R01DS0053EJ0370.

Is the R5F104EAANA#20 pin-compatible with other RL78/G14 variants in the 40-pin HWQFN package?

Yes, all RL78/G14 devices in the 40-pin HWQFN package (e.g., R5F104EBANA#20, R5F104EDANA#20) share identical pinouts and electrical characteristics. Differences are limited to memory size and enabled peripherals - verified in Table 1-1 and Figure 1-1 of R01DS0053EJ0370 Rev. 3.70.