Renesas R5F104GCAFB#50

Overview

R5F104GCAFB#50 from Renesas is a 48-pin LFQFP, 0.5 mm pitch, industrial-grade (G) 16-bit RL78/G14 microcontroller with 128 KB flash, 12 KB RAM, and 8 KB data flash. It operates from 1.6–5.5 V, delivers 44 DMIPS at 32 MHz, and supports ultra-low-power modes (66 μA/MHz active, 0.60 μA RTC+LVD). It targets embedded control in motor drives, sensor nodes, and industrial HMI.

For engineers reviewing the R5F104GCAFB#50 datasheet, R5F104GCAFB#50 pinout, R5F104GCAFB#50 application, or R5F104GCAFB#50 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm package, 128 KB/12 KB/8 KB memory configuration, -40°C to +105°C operation, integrated RTC+LVD, and support for UART/LIN, I²C, CSI, and 16-bit timers with event linking.

Technical Context

The R5F104GCAFB#50 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @32 MHz to 30.5 µs @32.768 kHz). It integrates a Data Transfer Controller (DTC), Event Link Controller (ELC), and background operation (BGO) for data flash rewriting while executing code.

Its peripheral set includes up to 12-channel 16-bit Timer Array Unit (TAU), real-time clock with calendar/alarm, 10-bit 20-channel ADC with internal reference and temperature sensor, 8-bit dual DAC, two comparators, and hardware CRC. All peripherals are accessible via flexible I/O redirection registers.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP, 7 mm × 7 mm, 0.5 mm pitch, exposed pad (PLQP0048KF-A code), industrial temperature grade (−40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GHAFB#50 and R5F104GEAFB#50, the R5F104GCAFB#50 provides optimal balance of memory headroom (128 KB flash), real-time capability (44 DMIPS), and industrial temperature range - making it ideal for mid-complexity applications requiring field reliability without over-provisioning.

Availability

R5F104GCAFB#50 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance HMI, and battery-powered sensor node applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104GCAFB#50 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 is designed for ultra-low-power general-purpose embedded control, emphasizing energy efficiency, integrated peripherals, and seamless toolchain support for rapid development of cost-sensitive industrial and consumer devices.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104GCAFB#50?

The R5F104GCAFB#50 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. This is achieved using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and −40°C to +105°C. The RL78 core's 3-stage pipeline and optimized instruction set ensure deterministic timing for real-time control tasks in the R5F104GCAFB#50.

Does the R5F104GCAFB#50 support in-circuit debugging, and what interface is used?

Yes, the R5F104GCAFB#50 supports full on-chip debugging via its dedicated TOOLRxD and TOOLTxD pins (P50 and P51), compatible with Renesas E2/E2 Lite emulators. These pins provide non-intrusive SWD-style communication without consuming general-purpose I/O or UART resources - a key feature confirmed in the R5F104GCAFB#50 datasheet pin description table.

What are the memory protection features available on the R5F104GCAFB#50?

The R5F104GCAFB#50 includes flash block erase prohibition, flash shield window for secure self-programming, and read-out protection to prevent unauthorized firmware extraction. These features are implemented in hardware and configurable via dedicated registers - enabling secure bootloader implementation and IP protection in production R5F104GCAFB#50 deployments.

Can the R5F104GCAFB#50 operate from a single 3.3 V supply, and what are the implications for analog peripherals?

Yes, the R5F104GCAFB#50 operates from 1.6–5.5 V, including standard 3.3 V rails. Its 10-bit ADC uses VDD as reference by default, so at 3.3 V, full-scale input is 0–3.3 V. Internal 1.45 V reference and temperature sensor remain functional, enabling ratiometric measurements and thermal compensation independent of supply variation in the R5F104GCAFB#50.

How does the Event Link Controller (ELC) enhance real-time responsiveness in the R5F104GCAFB#50?

The ELC in the R5F104GCAFB#50 enables hardware-triggered peripheral activation without CPU intervention - for example, an ADC end-of-conversion event can directly start a DMA transfer or increment a timer counter. This reduces interrupt latency to sub-microsecond levels and frees CPU cycles, improving determinism in time-critical R5F104GCAFB#50 applications like motor control or high-speed data acquisition.