Renesas R5F104GHANA#20

Overview

R5F104GHANA#20 from Renesas is a 48-pin HWQFN-packaged RL78/G14 16-bit microcontroller with 128 KB flash, 16 KB RAM, and 8 KB data flash, operating at 32 MHz (44 DMIPS), supporting ultra-low-power modes (0.60 μA RTC+LVD), 10-bit ADC (16 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F104GHANA#20 datasheet, R5F104GHANA#20 pinout, R5F104GHANA#20 application, or R5F104GHANA#20 equivalent, key selection criteria include its -40°C to +105°C industrial-grade temperature range (G-suffix), 48-pin 0.5 mm pitch HWQFN package, integrated data flash rewrite capability (1M cycles), and hardware event linking via ELC for deterministic peripheral coordination.

Technical Context

The R5F104GHANA#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), plus multiply/divide/accumulate instructions and 1 MB address space. It integrates a Data Transfer Controller (DTC) with chain transfer and background operation during data flash rewriting.

Its peripheral set includes Timer Array Unit (TAU) with 8 channels, 12-bit interval timer, calendar-equipped RTC, watchdog timer, and Event Link Controller (ELC) enabling direct hardware-triggered peripheral activation without CPU intervention - critical for low-latency industrial timing and power-constrained wake-up sequences.

Key Specifications

Pinout & Package

Package: 48-pin HWQFN (7 × 7 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS. Pin functions validated per Renesas R01DS0053EJ0370 Rev. 3.70, Section 1.3.6.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GHANA#20, R5F104GHAFB#30 trades HWQFN thermal efficiency for easier assembly, while R5F104GLANA#20 scales memory for feature-rich firmware - both retain identical peripheral sets, ELC functionality, and low-power behavior.

Availability

R5F104GHANA#20 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, wireless sensor nodes, and factory automation I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104GHANA#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 industrial, automotive, and enterprise applications.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial control systems - emphasizing ultra-low standby current, integrated analog, and hardware-accelerated peripheral coordination.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104GHANA#20?

The R5F104GHANA#20 operates at up to 32 MHz with a measured performance of 44 DMIPS. This value is derived from the RL78 CPU core's 3-stage pipeline architecture and confirmed in Renesas documentation R01DS0053EJ0370. The device achieves this performance within its 1.6–5.5 V supply range and supports dynamic clock switching between high-speed on-chip oscillator frequencies (1–64 MHz).

Does the R5F104GHANA#20 support background data flash rewriting while executing application code?

Yes, the R5F104GHANA#20 supports Background Operation (BGO) for data flash. Instructions can be executed from program memory while rewriting the 8 KB data flash - verified in Section 1.1 of R01DS0053EJ0370. This enables uninterrupted real-time operation during firmware parameter updates or data logging, with guaranteed 1,000,000 rewrite cycles at VDD = 1.8–5.5 V.

What is the industrial temperature grade and package type of the R5F104GHANA#20?

The R5F104GHANA#20 carries the 'G' suffix indicating an industrial temperature grade of -40°C to +105°C, and uses a 48-pin HWQFN package (7 × 7 mm, 0.5 mm pitch) with exposed die pad. This is explicitly defined in Table 1-1 and Figure 1-1 of R01DS0053EJ0370, and the '#20' denotes tray packaging per Renesas specification.

How many analog input channels and what ADC resolution does the R5F104GHANA#20 provide?

The R5F104GHANA#20 integrates a 10-bit successive approximation ADC with up to 16 analog input channels (ANI0–ANI18, excluding reserved pins), as specified in Section 1.1 "A/D Converter" of R01DS0053EJ0370. It includes internal 1.45 V reference voltage and on-chip temperature sensor, supporting single-ended and differential measurements across the full 1.6–5.5 V supply range.

Can the R5F104GHANA#20 directly replace the R5F104GHAFB#30 in an existing design?

No, the R5F104GHANA#20 and R5F104GHAFB#30 are not pin-compatible replacements: the former uses a 48-pin HWQFN package while the latter uses 48-pin LFQFP. Though both share identical electrical specifications, peripherals, and memory, their land patterns, thermal pads, and mechanical dimensions differ. Board redesign is required to migrate from LFQFP to HWQFN - refer to Renesas package drawings PWQN0048KB-A (HWQFN) vs PLQP0048KF-A (LFQFP).