Renesas R5F140PLGFB#30

Overview

R5F140PLGFB#30 from Renesas is a 100-pin LFQFP, industrial-grade RL78/G13A 16-bit microcontroller with 512 KB code flash, 8 KB data flash, 32 KB RAM, and operation guaranteed up to +105°C. It integrates UART/LIN, I²C, CSI, 12-channel 8/10-bit ADC, RTC, and ultra-low-power modes (47 µA/MHz typ.) for embedded control in motor drives and industrial HMI.

For engineers reviewing the R5F140PLGFB#30 datasheet, R5F140PLGFB#30 pinout, R5F140PLGFB#30 application, or R5F140PLGFB#30 equivalent, key selection criteria include its 100-pin LFQFP-0.5mm package, industrial temperature rating (−40°C to +105°C), 512 KB flash with security lock, dual voltage domains (VDD/EVDD0/EVDD1), and peripheral I/O redirection capability via PIOR register.

Technical Context

The R5F140PLGFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs at 32 MHz high-speed on-chip oscillator or 30.5 µs at 32.768 kHz subsystem clock). It supports four main clock domains: high-speed system (X1/EXCLK), subsystem (XT1/EXCLKS), high-speed on-chip (1–32 MHz), and low-speed on-chip (15 kHz).

Its peripheral set includes four serial array units (UART0–3, IICA0–1, CSI0–3), 12-channel A/D converter with internal 1.45 V reference and temperature sensor, 8-channel 16-bit timer array with PWM output, real-time clock with calendar and alarm, and DMA controller with 4 channels supporting background data flash rewriting during program execution.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP (14 × 14 mm, 0.5-mm pitch), lead-free, RoHS-compliant, industrial-grade (G-suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F140PKGFB#30, the R5F140PLGFB#30 provides 128 KB additional flash and 8 KB extra RAM for larger firmware and real-time data buffers; versus R5F140PLAFB#30, it adds guaranteed +105°C operation essential for factory-floor deployments where enclosure temperatures exceed 85°C.

Availability

R5F140PLGFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, factory automation sensor nodes, and HMI panel designs requiring stable component supply across extended product lifecycles.

Supply support for R5F140PLGFB#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/G13A product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer equipment requiring extended battery life, robust EMC performance, and seamless toolchain compatibility with Renesas e² studio and CS+.

FAQ

What is the maximum operating frequency and clock source flexibility of the R5F140PLGFB#30?

The R5F140PLGFB#30 supports up to 32 MHz operation using its high-speed on-chip oscillator (±1.0% accuracy), or up to 20 MHz via external crystal (X1/X2) or external clock (EXCLK). It also integrates subsystem (32.768 kHz) and low-speed on-chip (15 kHz) clocks for RTC and ultra-low-power modes. All clock sources are software-selectable and can be dynamically switched during runtime without reset.

Does the R5F140PLGFB#30 support in-system programming and secure firmware updates?

Yes, the R5F140PLGFB#30 includes on-chip debug functionality accessible via TOOL0 pin and supports full in-system programming through its UART or CSI interfaces. It implements flash shield window protection and block erase prohibition to prevent unauthorized firmware modification. The 8 KB data flash supports background operation (BGO), allowing firmware to execute from code flash while updating parameters or logs in data flash - essential for secure OTA updates.

How does the R5F140PLGFB#30 manage power domains and reduce noise in mixed-signal applications?

The R5F140PLGFB#30 uses three independent power domains: VDD (core logic), EVDD0, and EVDD1 (I/O ports). Each has corresponding ground pins (VSS, EVSS0, EVSS1) that must be tied together externally. This separation isolates noisy digital switching from analog peripherals like the 12-channel ADC and RTC, significantly improving measurement accuracy and reducing susceptibility to EMI in industrial environments.

What peripheral I/O flexibility does the R5F140PLGFB#30 offer for PCB layout optimization?

The R5F140PLGFB#30 includes a Peripheral I/O Redirection Register (PIOR) that allows dynamic assignment of functions like UART, I²C, CSI, and timer outputs to alternate pins - for example, routing UART0 to P143/P144 instead of default P11/P12. This eliminates the need for board revisions when signal routing conflicts arise, accelerates prototyping, and improves layout density without sacrificing functional coverage.

Is the R5F140PLGFB#30 pin-compatible with other RL78/G13A variants in the same package?

Yes, all RL78/G13A 100-pin LFQFP variants - including R5F140PKGFB#30, R5F140PLAFB#30, and R5F140PLGFB#30 - share identical pinouts, mechanical dimensions, and thermal characteristics. Differences are limited to memory configuration (384 KB vs. 512 KB flash), RAM size (24 KB vs. 32 KB), and temperature grade (A vs. G). This enables drop-in replacement during design iteration or cost optimization without PCB changes.