Renesas R5F104GDAFB#10

Overview

R5F104GDAFB#10 from Renesas is a 48-pin LFQFP, industrial-grade (−40°C to +105°C) RL78/G14 16-bit MCU with 96 KB flash, 12 KB RAM, 8 KB data flash, and integrated 10-bit ADC (16-channel), UART/SCI/LIN, I²C, SPI, RTC, and ultra-low-power operation (66 μA/MHz active, 0.60 μA in RTC+LVD mode). It targets battery-powered industrial sensors and motor control interfaces.

For engineers reviewing the R5F104GDAFB#10 datasheet, R5F104GDAFB#10 pinout, R5F104GDAFB#10 application, or R5F104GDAFB#10 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, −40°C to +105°C industrial temperature rating, 96 KB code flash with self-programming support, and peripheral mix including dual UARTs with LIN support and hardware RTC with calendar function.

Technical Context

The R5F104GDAFB#10 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), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 96 KB on-chip flash (1 KB block size), 12 KB RAM, and 8 KB data flash with background operation (BGO) and 1M-cycle rewrite endurance.

Peripherals include an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, two 8-bit D/A channels (0–VDD output), up to 12× 16-bit timers (including TAU, Timer RJ/RD/RG), real-time clock with calendar/alarm, watchdog timer, and serial interfaces: 3× UART/SCI (LIN-capable), 4× I²C/simplified I²C, and 3–8× CSI (SPI-compatible). Power management features HALT, STOP, and SNOOZE modes plus on-chip LVD with 14-level interrupt/reset selection.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), industrial-grade (G-suffix), RoHS-compliant, with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GEAFB#10, the R5F104GDAFB#10 trades flash capacity for cost-sensitive volume production; compared with R5F104GDAAFB#10, it offers identical functionality in a more manufacturable LFQFP package with proven yield in high-mix SMT lines.

Availability

R5F104GDAFB#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and brushless DC motor drivers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for R5F104GDAFB#10 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 infrastructure markets.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial controls and appliance applications requiring robust analog integration and long-term supply stability.

FAQ

What is the maximum operating frequency of the R5F104GDAFB#10?

The R5F104GDAFB#10 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.03125 µs. The device also supports lower-frequency operation down to 32.768 kHz for ultra-low-power RTC and sleep modes, with corresponding instruction timing adjusted accordingly. All timing specifications are guaranteed across the full −40°C to +105°C industrial temperature range.

Does the R5F104GDAFB#10 support LIN bus communication?

Yes, the R5F104GDAFB#10 supports LIN bus communication through its UART/SCI modules. Specifically, UART channels 0 and 2 include LIN header detection, sync field generation, and identifier verification per LIN 2.2A specification. This enables direct connection to LIN transceivers without external protocol translation, simplifying implementation in automotive body electronics and industrial sub-networks.

What is the data flash endurance and voltage range for rewriting the R5F104GDAFB#10?

The R5F104GDAFB#10 features 8 KB of on-chip data flash rated for 1,000,000 write/erase cycles (typical) with rewrite operation supported across the full VDD range of 1.8 V to 5.5 V. Background operation (BGO) allows program execution from code flash while data flash is being rewritten, enabling seamless logging of sensor data or configuration parameters without interrupting real-time tasks.

Can the R5F104GDAFB#10 operate from a single 1.8 V supply?

Yes, the R5F104GDAFB#10 operates from a single supply voltage ranging from 1.6 V to 5.5 V, fully supporting 1.8 V operation across its entire specified temperature range (−40°C to +105°C). At 1.8 V, the maximum operating frequency is reduced to 16 MHz, and all peripherals-including ADC, RTC, and serial interfaces-remain functional with guaranteed timing and accuracy per the datasheet specifications.

How many analog input channels does the R5F104GDAFB#10 support?

The R5F104GDAFB#10 supports up to 16 analog input channels (ANI0–ANI15) with 10-bit resolution. The ADC includes an internal 1.45 V reference voltage and on-die temperature sensor, enabling standalone temperature monitoring without external components. Channel selection, sampling time, and trigger sources (software, timer, or peripheral event) are fully configurable via dedicated registers.