Renesas R5F526TFBDFP#30

Overview

R5F526TFBDFP#30 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring a 120 MHz CPU core, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD interface, and high-resolution PWM with 260 ps timing resolution. It supports IEC60730 safety compliance and includes Trusted Secure IP Lite encryption.

For engineers reviewing the R5F526TFBDFP#30 datasheet, R5F526TFBDFP#30 pinout, R5F526TFBDFP#30 application, or R5F526TFBDFP#30 equivalent, key selection considerations include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, simultaneous sampling across three 12-bit A/D units, 3-phase/5-phase complementary PWM generation, and hardware-accelerated trigonometric functions (TFUv2) for real-time motor algorithms.

Technical Context

The R5F526TFBDFP#30 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and 16-register bank save for fast context switching in motor control interrupt routines. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling independent timing domains for PCLKA (up to 120 MHz), PCLKB (up to 60 MHz), PCLKC (up to 120 MHz), and PCLKD (up to 60 MHz).

Peripheral coordination is managed via Event Link Controller (ELC), supporting 183 internal event signals for CPU-free inter-module triggering - critical for synchronized PWM output, A/D conversion start, and fault response. Safety features include MPU, register write protection, oscillation-stop detection, CRC calculator (CRCA), and Trusted Memory (TM) for secure boot code protection.

Key Specifications

Pinout & Package

R5F526TFBDFP#30 is housed in a 100-pin LFQFP package (PLQP0100KB-B), 14 × 14 mm body, 0.5 mm pitch, with 82 general-purpose I/O pins - including 2× 5-V tolerant inputs, 15× large-current outputs, and dedicated GPTW/MTU waveform pins controlled by POE3D/POEG.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control MCU applications.

Compared with R5F526TFBDFP#30, R5F526TDDFK#30 offers footprint reduction and lower BOM cost at the expense of HRPWM precision and simultaneous A/D sampling depth, while R5F566TEBDFP#30 delivers architectural scalability for future-proofing but mandates new layout and toolchain investment.

Availability

R5F526TFBDFP#30 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, electric power tools, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature conditions.

Supply support for R5F526TFBDFP#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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power management, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group - to which R5F526TFBDFP#30 belongs - was designed specifically for high-performance, safety-certifiable motor control in industrial and consumer inverters, integrating precision timing, analog sensing, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFBDFP#30?

The R5F526TFBDFP#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core efficiency, single-cycle instruction execution, and on-chip memory bandwidth - making it suitable for demanding real-time motor control algorithms that require consistent low-latency response.

Does the R5F526TFBDFP#30 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFBDFP#30 includes hardware features required for IEC60730 Class B compliance: oscillation-stop detection, RAM test assist (via DOC), self-diagnostic A/D converter, clock frequency accuracy measurement circuit, independent watchdog timer (IWDTa), and register write protection. These reduce software validation effort but require proper configuration per Renesas' AN1900 application note.

What package type and pin count does the R5F526TFBDFP#30 use?

The R5F526TFBDFP#30 uses a 100-pin Low-Profile Quad Flat Package (LFQFP) with PLQP0100KB-B footprint (14 × 14 mm, 0.5 mm pitch). It provides 82 general-purpose I/O pins, including 2× 5-V tolerant inputs and 15× large-current outputs - optimized for high-density motor control board layouts with mixed-signal routing requirements.

Can the R5F526TFBDFP#30 perform simultaneous sampling across all A/D channels?

No - simultaneous sampling is limited to channels within the same A/D unit. The R5F526TFBDFP#30 has three 12-bit S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). Units 0 and 1 each include three sample-and-hold circuits, enabling true simultaneous sampling across their respective 3-channel groups; Unit 2 supports sequential sampling only.

What is the role of the Trusted Memory (TM) function in the R5F526TFBDFP#30?

The Trusted Memory (TM) function in the R5F526TFBDFP#30 restricts read access to designated areas of code flash memory - protecting boot code and security-critical firmware from unauthorized extraction. When enabled, only CPU instruction fetches are allowed from TM target areas; data reads or debugger access are blocked, enforcing secure boot integrity and intellectual property protection.