Renesas R5F104PJAFB#30

Overview

R5F104PJAFB#30 from Renesas is a 100-pin LFQFP, 0.5 mm pitch, industrial-grade (G) RL78/G14 16-bit MCU with 192 KB flash, 8 KB data flash, 20 KB RAM, and operation up to 32 MHz delivering 44 DMIPS. It integrates RTC, 10-bit ADC (19 channels), UART/LIN, I²C, SPI, 16-bit timers, and ultra-low-power modes (0.60 μA in RTC+LVD mode) for embedded control in harsh environments.

For engineers reviewing the R5F104PJAFB#30 datasheet, R5F104PJAFB#30 pinout, R5F104PJAFB#30 application, or R5F104PJAFB#30 equivalent, key selection criteria include its -40°C to +105°C industrial temperature rating, 192 KB code flash with block erase security, 19-channel 10-bit ADC with internal reference, and support for LIN bus communication in automotive body electronics and industrial HMI systems.

Technical Context

The R5F104PJAFB#30 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 supports multiply/divide/accumulate instructions and a 1 MB address space with four register banks.

Its peripheral set includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with chain transfer, background data flash rewriting (1M write cycles), and dual-voltage operation (1.6–5.5 V) enabling direct interface with 1.8/2.5/3.0 V logic without level shifters.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP, 14 × 14 mm, 0.5 mm pitch, exposed thermal pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104PJAFB#30, R5F104PLAFB#30 provides scalable memory headroom for feature-rich firmware, while R5F104PJGFB#30 offers identical electrical and thermal performance in tape-and-reel format-both preserve full software compatibility and require no PCB changes.

Availability

R5F104PJAFB#30 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, home appliance motor control, and medical front-end designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104PJAFB#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 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained embedded systems requiring robust peripheral integration and long-term supply assurance.

FAQ

What is the maximum operating frequency and power consumption of the R5F104PJAFB#30?

The R5F104PJAFB#30 operates at up to 32 MHz with 44 DMIPS performance. Its ultra-low-power architecture achieves 66 μA/MHz in HALT mode and just 0.60 μA in STOP mode with RTC and LVD active-enabling multi-year battery life in always-on monitoring applications. These values are measured at VDD = 3.3 V and TA = 25°C per R01DS0053EJ0370.

Does the R5F104PJAFB#30 support LIN bus communication, and how is it implemented?

Yes, the R5F104PJAFB#30 supports LIN 2.2 bus communication through its UART channels, which include dedicated hardware features such as automatic sync-break detection, checksum generation, and identifier filtering. No external transceiver is required for basic LIN slave functionality, and configuration is handled via the serial array unit (SAU) registers in the R5F104PJAFB#30's peripheral set.

What are the flash memory organization and security features of the R5F104PJAFB#30?

The R5F104PJAFB#30 contains 192 KB of code flash organized in 1 KB blocks, with hardware-based prohibition of block erase and rewriting to prevent unauthorized firmware modification. It also supports self-programming with boot swapping and flash shield window protection-critical for secure firmware updates and IP protection in production devices.

Can the R5F104PJAFB#30 operate from a single 1.8 V supply, and what peripherals remain functional?

Yes, the R5F104PJAFB#30 supports single-supply operation from 1.6 V to 5.5 V, including 1.8 V. At 1.8 V, the CPU, 10-bit ADC (with internal 1.45 V reference), RTC, LVD, and most I/O-including 1.8 V tolerant pins-remain fully operational. However, high-speed peripherals like 32 MHz operation and certain UART baud rates require ≥2.7 V per the absolute maximum ratings table in R01DS0053EJ0370.

How does the R5F104PJAFB#30 handle analog input channel routing and reference selection?

The R5F104PJAFB#30 provides 19 analog input channels mapped across ports P00–P27 and P120–P147. The 10-bit ADC supports selectable references: external AVREFP/AVREFM pins or internal 1.45 V reference. Channel assignment and reference selection are configured via the ADSCR and ADSGR registers, and the internal temperature sensor is accessible as ANI18 (P147) with calibrated output.