Renesas R5F526TBBGFL#50

Overview

R5F526TBBGFL#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, 64 KB SRAM, 16 KB data flash, CAN FD interface, and integrated high-resolution PWM with 260 ps timing resolution.

For engineers reviewing the R5F526TBBGFL#50 datasheet, R5F526TBBGFL#50 pinout, R5F526TBBGFL#50 application, or R5F526TBBGFL#50 equivalent, key selection considerations include its 100-pin LFQFP package, dual-bank flash architecture enabling background programming, IEC60730-compliant safety features, and dedicated hardware acceleration for 3-phase/5-phase complementary PWM generation.

Technical Context

The R5F526TBBGFL#50 implements the RXv3 CPU core with single-cycle instruction execution, 32-bit multiplier/divider, and optional single-precision FPU compliant with IEEE 754. It supports little-endian or big-endian data arrangement and includes 16 register banks for fast context switching during interrupt handling.

Its clock system integrates an 8–24 MHz external crystal oscillator, internal 240 kHz LOCO and selectable 16/18/20 MHz HOCO, and a PLL synthesizer enabling 120 MHz operation. Peripheral clocks are independently configurable: PCLKA up to 120 MHz (for MTU3d, GPTWa, HRPWM), PCLKB up to 60 MHz (for SCI, RIIC, CMT), and PCLKD up to 60 MHz (for S12ADH A/D converter).

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package, 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBBGFL#50, R5F526TBDGFL#50 offers reduced memory at lower cost for simpler motor control, while R5F566TEBGFP#30 delivers higher compute throughput and larger memory for advanced servo systems-neither is pin-compatible, requiring PCB redesign.

Availability

R5F526TBBGFL#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.

Supply support for R5F526TBBGFL#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT applications.

The RX26T Group, including R5F526TBBGFL#50, was designed specifically for high-efficiency motor control in industrial inverters and home appliances, integrating precision PWM, safety features, and real-time communication interfaces.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBBGFL#50?

The R5F526TBBGFL#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core efficiency, including single-cycle instruction execution, 32-bit multiplier/divider, and optimized pipeline design. The R5F526TBBGFL#50 sustains this performance across its full operating temperature range (–40°C to +105°C) with no wait states on code flash or SRAM access.

Does the R5F526TBBGFL#50 support IEC60730 Class B compliance?

Yes, the R5F526TBBGFL#50 includes multiple hardware features required for IEC60730 Class B compliance: oscillation-stoppage detection, self-diagnostic A/D functions, clock frequency accuracy measurement circuit, independent watchdog timer (IWDT) with window function, RAM test-assisting function via DOC, and CRC calculator (CRCA). These capabilities are documented in the R01DS0407EJ0120 datasheet and enable certified safety firmware implementation without external components.

What package type and pin count does the R5F526TBBGFL#50 use?

The R5F526TBBGFL#50 uses the PLQP0100KB-B package: a 100-pin Low-profile Quad Flat Package with 14 mm × 14 mm body size, 0.5 mm lead pitch, and exposed thermal pad. This package supports 82 general-purpose I/O pins, two 5-V tolerant inputs, and dedicated pins for CAN FD, high-resolution PWM, and simultaneous ADC sampling-enabling compact yet robust motor control board layouts.

How many A/D converter channels does the R5F526TBBGFL#50 support, and what is their resolution?

The R5F526TBBGFL#50 integrates a 12-bit S12ADH A/D converter with 22 total channels distributed across three independent units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). All units support simultaneous sampling, 0.9 µs minimum conversion time at 60 MHz ADCLK, and channel-specific sampling time configuration-enabling synchronized acquisition of motor phase currents, DC bus voltage, and temperature sensor outputs.

What communication interfaces are integrated into the R5F526TBBGFL#50?

The R5F526TBBGFL#50 integrates CAN FD (ISO 11898-1:2015), four SCI channels (SCIk/SCIh), three RSCI channels with Manchester encoding and HBS functionality, one I2C bus interface (RIICa, 400 kbps), one I3C bus interface (RI3C, SDR mode), and two SPI interfaces (RSPId and RSPIA). These interfaces support industrial networking, sensor connectivity, and firmware updates in motor control and appliance applications.