Renesas R5F104AEGSP#30

Overview

R5F104AEGSP#30 from Renesas is a 30-pin LSSOP-packaged RL78/G14 16-bit microcontroller with 64 KB flash, 4 KB data flash, and 5.5 KB RAM, operating at 1.6–5.5 V and supporting ultra-low-power modes (0.60 μA RTC+LVD). It integrates UART, I²C, SPI, 10-bit ADC (12 channels), RTC, and watchdog timer for embedded control in battery-powered industrial sensors.

For engineers reviewing the R5F104AEGSP#30 datasheet, R5F104AEGSP#30 pinout, R5F104AEGSP#30 application, or R5F104AEGSP#30 equivalent, key selection criteria include its 30-pin LSSOP package, -40°C to +105°C industrial-grade temperature range (G-suffix), 64 KB code flash size, integrated analog peripherals, and support for SNOOZE/HALT/STOP low-power states.

Technical Context

The R5F104AEGSP#30 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. Its memory subsystem comprises 64 KB on-chip flash (1 KB block size), 4 KB data flash with background operation (BGO), and 5.5 KB RAM.

Peripheral integration includes a 10-bit ADC with 12 input channels and internal 1.45 V reference, dual UART channels (one with LIN support), four I²C interfaces, three CSI/SPI channels, RTC with calendar/alarm, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.

Key Specifications

Pinout & Package

Package: 30-pin plastic LSSOP (7.62 mm × 4.4 mm, 0.65 mm pitch), industrial-grade (G-suffix) with operating ambient temperature of −40°C to +105°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104AGGSP#30, the R5F104AEGSP#30 offers balanced memory (64 KB flash) for mid-complexity firmware while maintaining identical industrial temperature rating and low-power performance; versus R5F104BEFSP#30, it provides 33% more flash for feature-rich applications without increasing PCB footprint or thermal load.

Availability

R5F104AEGSP#30 is available at Aetrix Electronics and suitable for industrial temperature sensor nodes, smart HVAC actuators, programmable power monitors, and keypad interface modules requiring stable component supply across long production lifecycles.

Supply support for R5F104AEGSP#30 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 family delivers true low-power 16-bit MCU performance for general-purpose industrial control, targeting applications needing robust analog integration, extended temperature operation, and energy-efficient operation without sacrificing code density or debug capability.

FAQ

What is the maximum operating frequency and core performance of the R5F104AEGSP#30?

The R5F104AEGSP#30 operates at up to 32 MHz with the RL78 CPU core delivering 44 DMIPS. Its minimum instruction execution time is 0.03125 µs at 32 MHz using the high-speed on-chip oscillator, and it supports variable-speed operation down to 32.768 kHz for ultra-low-power RTC functions. The core includes multiply/divide/accumulate instructions and a 3-stage pipeline optimized for code density and deterministic timing.

Does the R5F104AEGSP#30 support LIN bus communication?

Yes, the R5F104AEGSP#30 supports LIN bus communication through its UART peripheral. One of its two UART channels (UART0 or UART1, depending on pin assignment) includes LIN-specific features such as automatic sync byte detection, checksum generation, and break field handling - fully compliant with LIN 2.2A specifications as documented in the RL78/G14 hardware manual.

What are the memory resources allocated to the R5F104AEGSP#30?

The R5F104AEGSP#30 includes 64 KB of on-chip code flash memory organized in 1 KB blocks, 4 KB of data flash memory with background operation (BGO) and 1,000,000 write cycles, and 5.5 KB of RAM. These allocations are fixed for this specific part number and confirmed in Table 1-1 of the R01DS0053EJ0370 datasheet under the "30 pins" row and "E" flash capacity column.

How does the R5F104AEGSP#30 achieve ultra-low-power operation?

The R5F104AEGSP#30 achieves ultra-low-power operation through multiple dedicated modes: HALT (66 μA/MHz), STOP (0.60 μA with RTC and LVD active), and SNOOZE (low-power peripheral operation with CPU halted). It uses a segmented power domain architecture, on-chip voltage regulator with REGC bypass, and clock gating to minimize leakage and dynamic power - validated across the −40°C to +105°C industrial temperature range.

Is the R5F104AEGSP#30 pin-compatible with other RL78/G14 variants in LSSOP-30 package?

Yes, all RL78/G14 devices in the 30-pin LSSOP package - including R5F104AA–AG series with G-suffix - share identical pin count, pitch, mechanical dimensions, and pin function mapping. This allows direct substitution within the same memory and temperature grade family, provided firmware is recompiled for flash/RAM size differences and peripheral initialization matches the target variant's resource allocation.