Renesas R5F526TBBGFP#50

Overview

R5F526TBBGFP#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring a 120 MHz CPU core delivering 709 CoreMark, 512 KB on-chip code flash memory with dual-bank operation, 64 KB SRAM, 16 KB data flash (100,000 write cycles), and integrated high-resolution PWM with 260 ps timing resolution. It supports CAN FD (ISO 11898-1:2015), three RSCI interfaces with Manchester encoding and HBS, and IEC60730-compliant safety functions including oscillation-stop detection and RAM self-test.

For engineers reviewing the R5F526TBBGFP#50 datasheet, R5F526TBBGFP#50 pinout, R5F526TBBGFP#50 application, or R5F526TBBGFP#50 equivalent, key selection criteria include its 120 MHz GPTWa timer with 3-phase/5-phase complementary PWM output, simultaneous sampling across three 12-bit A/D units (up to 22 channels), 6-channel analog comparator, and Trusted Secure IP Lite encryption engine supporting AES-128/256 and true random number generation.

Technical Context

The R5F526TBBGFP#50 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and optional big-endian data arrangement. It integrates a memory protection unit (MPU) with eight configurable protection areas (minimum 16-byte granularity) and Trusted Memory (TM) functionality that restricts code fetch access to protected flash regions while blocking read-out.

Its clock system combines an 8–24 MHz external crystal oscillator with PLL synthesis, internal 240 kHz LOCO and selectable 16/18/20 MHz HOCO, and a dedicated 120 kHz IWDT oscillator. Peripheral clocks are independently configurable: PCLKA up to 120 MHz (for MTU3d, GPTWa, HRPWM), PCLKB up to 60 MHz (for TMRb, CMT, SCI), PCLKC up to 120 MHz (for counter reference), and PCLKD up to 60 MHz (for S12ADH).

Key Specifications

Pinout & Package

Package: PLQP0100KB-B (100-pin LQFP, 14 × 14 mm, 0.5 mm pitch). Pin count and I/O configuration match the 100-pin variant of the RX26T Group: 82 general-purpose I/O pins, 2×5-V-tolerant inputs, 15×large-current outputs, 1×input-only pin, full pull-up and open-drain support, and retention-capable port output control.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBBGFP#50, the R5F526TADGFP#50 offers identical package and peripherals but reduced memory capacity, while the R5F523T5DDFK#V0 uses an older RXv2 core, omits HRPWM and TFUv2, and targets less demanding motor control tasks - making R5F526TBBGFP#50 optimal for high-precision, safety-critical, or feature-rich inverter designs.

Availability

R5F526TBBGFP#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for R5F526TBBGFP#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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.

The R5F526TBBGFP#50 belongs to the RX26T Group - a family of 32-bit MCUs designed specifically for high-performance motor control and inverter systems, integrating advanced PWM, analog, safety, and communication capabilities in a single chip.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TBBGFP#50?

The R5F526TBBGFP#50 features a 32-bit RXv3 CPU core with a maximum operating frequency of 120 MHz, achieving 709 CoreMark performance. Its architecture includes 16 general-purpose 32-bit registers, two 72-bit accumulators, single-cycle instruction execution, and support for little-endian or big-endian data arrangement - all optimized for deterministic real-time motor control execution.

Does the R5F526TBBGFP#50 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBBGFP#50 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames. It operates at data rates up to 5 Mbps in FD mode and maintains full backward compatibility with classical CAN 2.0B networks - enabling high-bandwidth communication in industrial and automotive inverter systems.

How many A/D converter channels does the R5F526TBBGFP#50 support, and what is its sampling capability?

The R5F526TBBGFP#50 supports up to 22 channels across three independent 12-bit S12ADH units (Unit 0: 4 ch, Unit 1: 4 ch, Unit 2: 14 ch), with simultaneous sampling capability. Minimum conversion time is 0.9 µs per channel at 60 MHz ADCLK, and conversion can be triggered by software, MTU3d/GPTWa timers, or external signals - essential for synchronized current/voltage acquisition in FOC algorithms.

What safety certifications and built-in functions does the R5F526TBBGFP#50 provide for IEC60730 compliance?

The R5F526TBBGFP#50 includes multiple IEC60730 Class B support features: oscillation-stoppage detection, A/D converter disconnection check, clock frequency accuracy measurement, independent watchdog timer (IWDTa), RAM test-assisting function via DOC, CRC calculator (CRCA), and register write protection. These reduce external component count and simplify certification for motor control appliances.

What is the package type and pin count of the R5F526TBBGFP#50, and what are its I/O characteristics?

The R5F526TBBGFP#50 uses the PLQP0100KB-B package: a 100-pin LQFP measuring 14 × 14 mm with 0.5 mm pitch. It provides 82 general-purpose I/O pins, 2×5-V-tolerant inputs, 15×large-current outputs, full pull-up and open-drain support, and port output retention - matching the full I/O capability of the RX26T Group's 100-pin variant for complex motor control interfacing.