Renesas R5F526TACGFM#10

Overview

R5F526TACGFM#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, 512 KB on-chip flash, 64 KB SRAM, and integrated 3-phase complementary PWM (10-channel), high-resolution PWM (4-channel, 260 ps min. resolution), CAN FD interface, and hardware encryption (AES-128/256). It targets real-time closed-loop motor drive systems requiring IEC60730 compliance.

For engineers reviewing the R5F526TACGFM#10 datasheet, R5F526TACGFM#10 pinout, R5F526TACGFM#10 application, or R5F526TACGFM#10 equivalent, key selection criteria include its 120 MHz GPTWa timer with dead-time control, simultaneous sampling across three 12-bit A/D units (up to 7 channels), 6-channel analog comparator, dual 12-bit D/A outputs usable as comparator references, and Trusted Secure IP Lite for firmware integrity - all in a 100-pin LFQFP package rated for –40°C to +105°C.

Technical Context

The R5F526TACGFM#10 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and collective register bank save for fast context switching in motor control interrupt service routines. Its clock system supports PLL multiplication of an 8–24 MHz external crystal or internal HOCO (16/18/20 MHz) to achieve 120 MHz ICLK, while PCLKA, PCLKC, and PCLKD are independently configurable up to 120 MHz, 120 MHz, and 60 MHz respectively for peripheral timing isolation.

It integrates dedicated motor control peripherals including MTU3d (9-channel 16-bit timer with 3-phase complementary PWM and automatic dead-time insertion), GPTWa (8-channel 32-bit timer supporting 5-phase PWM and phase-counting mode), and HRPWM (4-channel sub-nanosecond edge positioning synchronized to GPTW0–GPTW3). The ELC enables CPU-free inter-module triggering - e.g., MTU/GPTW events directly initiating A/D conversion or comparator actions - critical for deterministic timing in field-oriented control (FOC) loops.

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 R5F526TACGFM#10, the R5F526TADGFM#10 offers identical motor control peripherals in a lower-cost variant with reduced memory, while the R5F566TEBGFM#10 delivers significantly higher compute bandwidth and networking capability at the expense of package incompatibility and increased system complexity.

Availability

R5F526TACGFM#10 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, and automotive auxiliary systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for R5F526TACGFM#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-precision motor control applications, integrating advanced PWM, analog signal chain, and functional safety features into a single 32-bit MCU platform targeting IEC60730-certifiable inverter systems.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TACGFM#10?

The R5F526TACGFM#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 barrel shifter - enabling deterministic execution of complex motor control algorithms such as field-oriented control (FOC) within tight timing budgets. The R5F526TACGFM#10 sustains this performance with no wait states on both 512 KB flash and 64 KB SRAM.

Does the R5F526TACGFM#10 support simultaneous sampling across multiple A/D units?

Yes, the R5F526TACGFM#10 supports true simultaneous sampling across three independent 12-bit S12ADH 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). This capability allows concurrent acquisition of phase currents, DC-link voltage, and temperature in motor control applications with sub-100 ns inter-unit skew - essential for accurate current reconstruction in space-vector modulation. The R5F526TACGFM#10 uses shared ADCLK derived from PCLKD (up to 60 MHz) for synchronized conversion timing.

What PWM configurations does the R5F526TACGFM#10 support for 3-phase inverter control?

The R5F526TACGFM#10 supports multiple 3-phase PWM configurations via its MTU3d and GPTWa timers: MTU3d provides 3-channel 3-phase complementary PWM with automatic dead-time insertion and fault shutdown via POE3D; GPTWa adds 10-channel single-phase, 3-channel 3-phase, and 2-channel 5-phase complementary modes. All modes support programmable dead time, center-aligned PWM, and ELC-triggered A/D conversion start - enabling precise timing coordination between voltage switching and current sensing. The R5F526TACGFM#10's HRPWM extends edge resolution to 260 ps for fine-grained dead-time compensation.

Is the R5F526TACGFM#10 qualified for IEC60730 Class B compliance?

Yes, the R5F526TACGFM#10 includes hardware features explicitly designed for IEC60730 Class B compliance: oscillation-stop detection for main clock failure, self-diagnostic A/D functions (including analog input disconnection detection), RAM test assist using DOC, CRCA for data integrity, MPU for memory access control, and register write protection. These capabilities are documented in Renesas Application Note R01AN3919JJ0100 and enable certified safety firmware implementation without external components. The R5F526TACGFM#10's G-version temperature rating (–40°C to +105°C) further supports industrial and automotive auxiliary use cases.

What is the package type and thermal specification of the R5F526TACGFM#10?

The R5F526TACGFM#10 is packaged in PLQP0100KB-B: a 100-pin Low-profile Quad Flat Package measuring 14 mm × 14 mm with 0.5 mm lead pitch and an exposed thermal pad. It is rated for the G-version operating temperature range of –40°C to +105°C, making it suitable for under-hood automotive auxiliary systems and industrial environments with high ambient heat. The package supports standard reflow soldering profiles and provides low thermal resistance (θJA ≈ 35°C/W typical) for reliable operation at full 120 MHz performance under continuous load.