Renesas R5F104PJAFB#10

Overview

R5F104PJAFB#10 from Renesas is a 100-pin LFQFP, 0.5 mm pitch, industrial-grade (G) 16-bit RL78/G14 microcontroller with 192 KB flash, 8 KB data flash, 20 KB RAM, and operation from -40°C to +105°C. It integrates a 32 MHz RL78 CPU core delivering 44 DMIPS, ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), and peripherals including 12-channel 10-bit ADC, dual UART/LIN, I²C, SPI, RTC, and hardware DTC/ELC for sensor and control applications in HVAC and industrial automation.

For engineers reviewing the R5F104PJAFB#10 datasheet, R5F104PJAFB#10 pinout, R5F104PJAFB#10 application, or R5F104PJAFB#10 equivalent, key selection considerations include its 100-pin LFQFP-0.5 mm package, G-grade temperature rating, integrated LIN-capable UARTs, background data flash rewrite capability, and support for real-time clock calendar and alarm functions in resource-constrained embedded systems.

Technical Context

The R5F104PJAFB#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs at 32 MHz to 30.5 µs at 32.768 kHz). It supports multiply/divide/accumulate instructions and features an on-chip high-accuracy ±1.0% oscillator selectable from 1–64 MHz.

Peripherals include 12-channel 10-bit A/D converter with internal reference and temperature sensor, two 8-bit D/A outputs, up to 12× 16-bit timers (including RTC with calendar and alarm), four UART/LIN interfaces, ten I²C channels, eight CSI/SPI channels, and event-driven DMA via Data Transfer Controller (DTC) and Event Link Controller (ELC).

Key Specifications

Pinout & Package

Package: 100-pin LFQFP, 14 mm × 14 mm, 0.5 mm pitch, exposed thermal pad (PLQP0100KB-B code). Pin count and pitch match standard JEDEC LFQFP-100 footprint with 0.5 mm lead spacing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104PJAFB#10, R5F104PJGFB#10 offers identical electrical and thermal performance in tape format, while R5F104PHAFB#10 reduces memory resources by 33% flash and 20% RAM-enabling cost-sensitive designs where feature set remains unchanged.

Availability

R5F104PJAFB#10 is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, HVAC controllers, and programmable logic controller I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104PJAFB#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 automotive, industrial, and IoT markets.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, high-reliability industrial and consumer control applications requiring extended temperature operation and integrated analog peripherals.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104PJAFB#10?

The R5F104PJAFB#10 operates at up to 32 MHz with its RL78 CPU core, delivering 44 DMIPS performance. This metric is measured under standard conditions per Renesas' published benchmarks and reflects integer instruction throughput with cache disabled. The R5F104PJAFB#10 achieves this performance while maintaining ultra-low power consumption of 66 μA per MHz in active mode.

Does the R5F104PJAFB#10 support LIN bus communication, and which UART channels provide it?

Yes, the R5F104PJAFB#10 supports LIN 2.2 protocol on its UART channels. Specifically, UART0 (P50/P51), UART1 (P00/P01), UART2 (P13/P14), and UART3 (P15/P16) all include LIN functionality with automatic sync-break detection, checksum generation/verification, and slave node response handling. The R5F104PJAFB#10 requires no external transceiver for basic LIN node implementation.

What are the memory resources allocated to the R5F104PJAFB#10, and how is data flash used in firmware design?

The R5F104PJAFB#10 includes 192 KB code flash, 8 KB data flash, and 20 KB RAM. Data flash is used for non-volatile parameter storage (e.g., calibration values, device configuration) and supports background operation (BGO), allowing program execution from code flash while rewriting data flash. The R5F104PJAFB#10's flash library reserves RAM starting at address F9F00H for self-programming operations.

What is the operating temperature range and qualification grade for the R5F104PJAFB#10?

The R5F104PJAFB#10 is qualified for industrial applications with an operating ambient temperature range of −40°C to +105°C, designated by the 'G' suffix in its part number. This grade meets industrial reliability standards and is validated for continuous operation across the full range with specified electrical parameters, including ADC accuracy, oscillator stability, and flash endurance.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F104PJAFB#10?

The ELC in the R5F104PJAFB#10 enables hardware-level linking of 19–26 peripheral events (e.g., timer overflow, ADC conversion complete) to target functions (e.g., start ADC scan, trigger DAC update) without CPU intervention. This reduces interrupt latency and CPU loading, allowing deterministic sub-microsecond response times. In the R5F104PJAFB#10, ELC is essential for time-critical sensor acquisition and motor control synchronization.