Renesas R5F526TFCDFN#30

Overview

R5F526TFCDFN#30 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, CAN FD interface, and integrated high-resolution PWM with 260 ps timing resolution. It supports IEC60730 safety compliance and operates from a single 2.7–5.5 V supply across –40°C to +85°C.

For engineers reviewing the R5F526TFCDFN#30 datasheet, R5F526TFCDFN#30 pinout, R5F526TFCDFN#30 application, or R5F526TFCDFN#30 equivalent, key selection criteria include its 3-phase/5-phase complementary PWM capability, dual-bank flash for safe firmware updates, Trusted Secure IP Lite encryption, and hardware-accelerated trigonometric functions (TFUv2) for real-time motor vector control.

Technical Context

The R5F526TFCDFN#30 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and 16 register banks for fast context switching-critical for deterministic motor control loops. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator, enabling independent domain clocking (ICLK up to 120 MHz, PCLKA/PCLKC up to 120 MHz, PCLKB/PCLKD up to 60 MHz).

Peripheral integration centers on precision timing: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) provide synchronized PWM generation with dead-time insertion, while HRPWM achieves 260 ps resolution on GPTW0–GPTW3 outputs. The S12ADH A/D converter delivers 0.9 µs minimum conversion time at 60 MHz ADCLK, with three sample-and-hold units supporting simultaneous sampling for current/voltage sensing in 3-phase systems.

Key Specifications

Pinout & Package

PWQN0064KF-A is a 64-pin, 9 × 9 mm, 0.5 mm pitch HWQFN package with exposed thermal pad, rated for –40°C to +85°C operation. Pin functions align with RX26T Group standard mapping for 64-pin variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFCDFN#30, R5F526TDDFK#30 offers identical timing/peripheral capabilities at reduced memory cost, while R5F523T5DDFK#30 trades performance and feature depth for lower price and power-making it suitable only for entry-level motor control where 260 ps PWM resolution and IEC60730 Class B support are unnecessary.

Availability

R5F526TFCDFN#30 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and renewable energy converters requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature operation.

Supply support for R5F526TFCDFN#30 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The RX26T Group is designed specifically for high-performance motor control applications-including air conditioners, washing machines, and industrial inverters-integrating precision PWM, safety features, and real-time processing in a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFCDFN#30?

The R5F526TFCDFN#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from the RXv3 CPU core's single-cycle instruction execution, 32-bit multiplier/divider, and barrel shifter-enabling deterministic execution of motor control algorithms. The R5F526TFCDFN#30 sustains this speed with no-wait access to both 512 KB flash and 64 KB SRAM.

Does the R5F526TFCDFN#30 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFCDFN#30 includes dedicated hardware for IEC60730 Class B compliance: oscillation-stop detection, RAM test assist via DOC, CRC calculator (CRCA), independent watchdog timer (IWDTa) with window function, and register write protection. These features are documented in the R01DS0407EJ0120 datasheet and require minimal software configuration to meet self-test requirements-reducing certification effort for R5F526TFCDFN#30-based designs.

What PWM resolution does the R5F526TFCDFN#30 achieve, and how is it implemented?

The R5F526TFCDFN#30 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 is realized by leveraging the 120 MHz system clock and internal fine-phase delay logic-not by oversampling or software interpolation. The R5F526TFCDFN#30 uses this capability for precise dead-time adjustment in 3-phase inverter gate drivers to minimize shoot-through risk.

Which analog peripherals are integrated into the R5F526TFCDFN#30, and how do they support motor control?

The R5F526TFCDFN#30 integrates a 12-bit S12ADH ADC with 21 channels across three sample-and-hold units, six-channel CMPCa analog comparators, and two 12-bit R12DAb DACs. These enable simultaneous sampling of three-phase currents and DC-link voltage, overcurrent protection via comparator threshold detection, and DAC-generated reference voltages for analog sensing circuits-all coordinated via the Event Link Controller to eliminate CPU intervention during critical timing windows in R5F526TFCDFN#30-based motor drives.

Is the R5F526TFCDFN#30 pin-compatible with other RX26T Group MCUs in the same package?

Yes, the R5F526TFCDFN#30 in the PWQN0064KF-A package shares identical pinout and electrical characteristics with other RX26T Group 64-pin HWQFN variants-including R5F526TDDFK#30 and R5F526TADFN#30. This allows direct substitution within the same footprint for memory or feature scaling, provided software accommodates differences in flash size, SRAM capacity, or peripheral enablement as defined in the R01DS0407EJ0120 datasheet's package comparison tables.