Renesas R5F526TBDGFL#10

Overview

R5F526TBDGFL#10 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control, featuring 120 MHz operation, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD, and high-resolution PWM with 260 ps timing resolution. It serves as the central real-time controller in inverter-driven industrial motors and servo systems.

For engineers reviewing the R5F526TBDGFL#10 datasheet, R5F526TBDGFL#10 pinout, R5F526TBDGFL#10 application, or R5F526TBDGFL#10 equivalent, key selection criteria include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, 3-phase/5-phase complementary PWM support, IEC60730 safety features, and Trusted Secure IP Lite encryption engine.

Technical Context

The R5F526TBDGFL#10 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and collective register bank save for fast interrupt response. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling precise timing across PCLKA (120 MHz), PCLKB (60 MHz), PCLKC (120 MHz), and PCLKD (60 MHz) domains.

Peripheral coordination is managed via Event Link Controller (ELC), supporting 183 internal event signals to trigger timer starts/stops, A/D conversions, or port output changes without CPU intervention. Safety-critical functions include MPU, Trusted Memory (TM), register write protection, CRCA, oscillation-stop detection, and RAM self-test assistance - all aligned with IEC60730 Class B requirements.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 × 14 mm body, 0.5 mm lead pitch, G-version operating temperature (–40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBDGFL#10, R5F526TADGFL#10 reduces memory resources while maintaining pin and peripheral compatibility for simpler motor control, whereas R5F566TEBGFL#10 delivers significantly higher performance and integration - including 130 ps HRPWM and Ethernet - for demanding servo and motion applications requiring architectural headroom.

Availability

R5F526TBDGFL#10 is available at Aetrix Electronics and suitable for industrial motor inverters, automotive EPS systems, home appliance drives, and industrial servo amplifiers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526TBDGFL#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.

The RX26T Group is designed specifically for high-performance motor control applications, integrating precision PWM, real-time analog peripherals, safety mechanisms, and CAN FD connectivity in a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBDGFL#10?

The R5F526TBDGFL#10 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark points under benchmark conditions. This performance stems from its RXv3 CPU core with single-cycle instruction execution, on-chip FPU, and efficient memory subsystem - enabling deterministic real-time motor control loops with sub-10 µs latency. The R5F526TBDGFL#10 sustains full-speed operation across its entire voltage range (2.7–5.5 V) and temperature range (–40°C to +105°C).

Does the R5F526TBDGFL#10 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TBDGFL#10 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stop detection, A/D converter disconnection detection, clock accuracy measurement circuit, independent watchdog timer (IWDTa), CRCA module, RAM test-assisting function via DOC, and register write protection. These are documented in the R01DS0407EJ0120 datasheet and require no external components. The R5F526TBDGFL#10 is certified for use in safety-critical motor control applications meeting Class B requirements.

What PWM modes and channel counts does the R5F526TBDGFL#10 support for motor control?

The R5F526TBDGFL#10 supports single-phase (10 channels), 3-phase (3 channels), and 5-phase (2 channels) complementary PWM modes via its GPTWa timers, plus 4-channel high-resolution PWM (HRPWM) with 260 ps minimum timing resolution. All modes operate at 120 MHz with programmable dead time, synchronous start/stop, and ELC-triggered A/D conversion - enabling precise field-oriented control of PMSM, BLDC, and stepper motors. The R5F526TBDGFL#10's MTU3d adds 9-channel 16-bit PWM with 3-phase complementary output and automatic dead-time compensation.

Is the R5F526TBDGFL#10 pin-compatible with other RX26T group members?

Yes, the R5F526TBDGFL#10 uses the PLQP0100KB-B 100-pin LFQFP package and shares identical pinout, peripheral mapping, and electrical characteristics with other 100-pin RX26T variants such as R5F526TADGFL#10 and R5F526TCDFL#10. This allows direct substitution within the same package footprint, provided firmware accommodates differences in flash size (512 KB vs. 256 KB) and RAM capacity (64 KB vs. 48 KB). Pin-to-pin compatibility is confirmed in Table 1.2 of the R01DS0407EJ0120 datasheet.

What communication interfaces does the R5F526TBDGFL#10 include for industrial networking?

The R5F526TBDGFL#10 integrates CAN FD (ISO11898-1:2015 compliant), I²C (RIICa, 400 kbps), I3C (RI3C, SDR mode), RSPI (RSPId, 30 Mbps), and multiple SCI/RSCI channels with LIN and Manchester encoding support. These interfaces enable robust diagnostics, distributed control, and interoperability with sensors, gate drivers, and host controllers. The R5F526TBDGFL#10's CAN FD channel supports data rates up to 5 Mbps and payloads up to 64 bytes - ideal for high-bandwidth motor telemetry and firmware updates in industrial networks.