Renesas R5F526TBBGFN#10

Overview

R5F526TBBGFN#10 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 hardware-accelerated 3-phase/5-phase complementary PWM generation with 260 ps timing resolution.

For engineers reviewing the R5F526TBBGFN#10 datasheet, R5F526TBBGFN#10 pinout, R5F526TBBGFN#10 application, or R5F526TBBGFN#10 equivalent, this MCU delivers deterministic real-time control for brushless DC and permanent magnet synchronous motor drives, with IEC60730-compliant safety features, on-chip FPU, and simultaneous sampling across three 12-bit A/D units.

Technical Context

The R5F526TBBGFN#10 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 interrupt-heavy motor control loops. Its clock system supports 8–24 MHz external crystal input to PLL, generating up to 120 MHz ICLK while independently configuring PCLKA (120 MHz), PCLKB (60 MHz), PCLKC (120 MHz), and PCLKD (60 MHz) for peripheral domains.

It integrates dual-bank flash enabling background programming during execution, 120 MHz GPTWa timers with dead-time insertion and synchronous start/stop across channels, and HRPWM circuitry that refines GPTW0–GPTW3 output edges to ±260 ps resolution - critical for minimizing switching losses in high-frequency SiC/GaN inverter stages.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 × 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 R5F526TBBGFN#10, R5F526TADDFP#30 reduces pin count and memory to lower cost and footprint but sacrifices analog sampling parallelism and PWM channel count; R5F566TEBDFP#30 increases CPU speed and memory capacity for complex multi-axis systems but requires revalidation of timing-critical PWM and ADC synchronization logic.

Availability

R5F526TBBGFN#10 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and automotive-grade temperature resilience (–40°C to +105°C).

Supply support for R5F526TBBGFN#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, including R5F526TBBGFN#10, was designed specifically for high-precision motor control in inverters and industrial drives, integrating hardware acceleration for FOC, safety mechanisms for IEC60730 compliance, and robust communication interfaces for factory automation networks.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBBGFN#10?

The R5F526TBBGFN#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 architecture with single-cycle instruction execution, on-chip 32-bit multiplier/divider, and barrel shifter - all validated per Renesas R01DS0407EJ0120 Rev.1.20 datasheet. The R5F526TBBGFN#10 sustains full 120 MHz operation across code flash, SRAM, and peripheral clocks (PCLKA/PCLKC) without wait states.

Does the R5F526TBBGFN#10 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBBGFN#10 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard (11-bit) and extended (29-bit) frame formats. It enables data phase bit rates up to 5 Mbit/s (dependent on transceiver and layout), with built-in message filtering, FIFO buffering, and error counters - all confirmed in the R01DS0407EJ0120 Rev.1.20 specification. The R5F526TBBGFN#10 uses dedicated CANH/CANL pins and supports automatic retransmission and bus-off recovery.

How many A/D converter units does the R5F526TBBGFN#10 include, and what is their sampling capability?

The R5F526TBBGFN#10 includes three independent 12-bit S12ADH A/D converter units: Unit 0 (4 channels with 3 sample-and-hold circuits), Unit 1 (4 channels with 3 sample-and-hold circuits), and Unit 2 (14 channels). Minimum conversion time is 0.9 µs per channel when ADCLK runs at 60 MHz. Simultaneous triggering across all units is supported via hardware signals (e.g., MTU/GPTW overflow), enabling true synchronized sampling for motor current reconstruction - as detailed in R01DS0407EJ0120 Rev.1.20 Section 1.1.

What PWM resolution and complementary channel count does the R5F526TBBGFN#10 provide for motor control?

The R5F526TBBGFN#10 provides 10 single-phase, 3 three-phase, or 2 five-phase complementary PWM outputs using its 32-bit GPTWa timers, with hardware-dead-time insertion and synchronous start/stop. Its HRPWM circuit refines GPTW0–GPTW3 edges to a minimum resolution of 260 ps at 120 MHz - enabling precise gate timing for SiC/GaN inverters. This specification is explicitly stated in the "High-resolution PWM waveform generation circuit (HRPWM)" feature section of R01DS0407EJ0120 Rev.1.20.

Is the R5F526TBBGFN#10 qualified for automotive or industrial temperature ranges?

Yes, the R5F526TBBGFN#10 is rated for the G-version operating temperature range of –40°C to +105°C, making it suitable for under-hood automotive applications (e.g., HVAC blowers) and industrial environments (e.g., motor drives in enclosures without active cooling). This rating is defined in the "Recommended operating temp. range (Topr)" section of R01DS0407EJ0120 Rev.1.20 and corresponds to the "G" suffix in the part number's package variant designation.