Renesas R5F526TBCGFN#10

Overview

R5F526TBCGFN#10 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark performance, integrated 512 KB code flash, 64 KB SRAM, 16 KB data flash, CAN FD interface, and high-resolution PWM with 260 ps timing resolution. It targets real-time motor drive systems requiring precise phase control, safety compliance (IEC60730), and secure firmware execution.

For engineers reviewing the R5F526TBCGFN#10 datasheet, R5F526TBCGFN#10 pinout, R5F526TBCGFN#10 application, or R5F526TBCGFN#10 equivalent, key selection considerations include its 100-pin LFQFP package, 120 MHz GPTWa/MTU3d timer subsystem for 3-phase/5-phase complementary PWM generation, dual-bank flash for safe firmware updates, Trusted Secure IP Lite encryption, and IEC60730 self-test features including oscillation-stop detection and RAM test assistance.

Technical Context

The R5F526TBCGFN#10 implements the RXv3 CPU core with single-cycle instruction execution, 32-bit multiplier/divider, barrel shifter, and optional single-precision FPU compliant with IEEE 754. Its memory subsystem includes dual-bank 512 KB code flash enabling background programming and bank-swapped boot, plus 64 KB no-wait SRAM with SED error detection.

Real-time motor control is enabled by tightly coupled peripherals: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) synchronized to PCLKA/PCLKC up to 120 MHz, HRPWM delivering 260 ps resolution on GPTW0–GPTW3 outputs, and ELC-driven event chaining that initiates A/D conversion, PWM updates, or comparator actions without CPU intervention.

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, rated for –40°C to +105°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBCGFN#10, R5F526TADGFN#10 trades HRPWM and ADC channel count for compact packaging, while R5F566TEBDFP#30 delivers higher compute throughput at the expense of specialized motor timing precision-making R5F526TBCGFN#10 optimal for cost-sensitive, high-fidelity inverter designs where 260 ps PWM edge control directly impacts efficiency and acoustic noise.

Availability

R5F526TBCGFN#10 is available at Aetrix Electronics and suitable for industrial motor inverters, home appliance compressors, servo drives, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and automotive-grade temperature resilience.

Supply support for R5F526TBCGFN#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets, with over 40 years of MCU innovation.

The RX26T Group is designed specifically for high-efficiency motor control in industrial and consumer inverters, integrating precision PWM, safety-certified peripherals, and secure firmware execution in a single-chip solution.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBCGFN#10?

The R5F526TBCGFN#10 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-enabling real-time motor control loops with sub-1 µs jitter in applications such as PMSM field-oriented control. The R5F526TBCGFN#10 sustains this performance across its full temperature range (–40°C to +105°C).

Does the R5F526TBCGFN#10 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TBCGFN#10 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stop detection for main clock failure, A/D converter disconnection monitoring, clock frequency accuracy measurement, independent watchdog timer (IWDTa), RAM test assistance via DOC, and CRC calculator (CRCA). These are implemented in silicon-not software libraries-reducing certification effort. The R5F526TBCGFN#10 also provides register write protection to prevent accidental corruption of critical control registers.

What PWM resolution does the R5F526TBCGFN#10 achieve, and how is it used in motor control?

The R5F526TBCGFN#10 achieves a minimum PWM timing resolution of 260 ps using its High-Resolution PWM (HRPWM) circuit, which controls rising/falling edges of GPTW0–GPTW3 outputs. This resolution enables precise dead-time insertion (<1 ns accuracy), minimizing shoot-through risk in 3-phase inverter bridges and reducing torque ripple and acoustic noise in PMSM drives. The R5F526TBCGFN#10 uses this capability in conjunction with MTU3d and GPTWa to generate synchronized complementary waveforms for industrial servo and compressor applications.

What package type and pin count does the R5F526TBCGFN#10 use?

The R5F526TBCGFN#10 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. It provides 82 general-purpose I/O pins (including 2 × 5-V tolerant, 15 × high-current outputs), supporting full peripheral access-including CAN FD, multiple SCI/RSCI interfaces, and all 22 ADC channels-without multiplexing constraints. This package is qualified for operation from –40°C to +105°C.

How does the dual-bank flash architecture benefit firmware updates in the R5F526TBCGFN#10?

The R5F526TBCGFN#10's dual-bank flash allows background programming (BGO) of one bank while executing application code from the other-enabling zero-downtime firmware updates in deployed motor drives. During an update, the active bank continues real-time control while the inactive bank receives new code; upon verification, the boot vector is swapped to activate the updated image. This eliminates system interruption and ensures functional safety continuity, a critical requirement for R5F526TBCGFN#10 deployments in industrial and appliance environments.