Renesas R5F526TFBGFP#30

Overview

R5F526TFBGFP#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, integrated CAN FD interface, and hardware-accelerated 3-phase complementary PWM generation with dead-time control.

For engineers reviewing the R5F526TFBGFP#30 datasheet, R5F526TFBGFP#30 pinout, R5F526TFBGFP#30 application, or R5F526TFBGFP#30 equivalent, key selection criteria include its 120 MHz real-time PWM timing resolution (260 ps minimum), dual-bank flash for safe firmware updates, IEC60730-compliant safety features including oscillation-stop detection and RAM test assistance, and support for simultaneous sampling across three 12-bit A/D units.

Technical Context

The R5F526TFBGFP#30 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. Its clock system integrates PLL, HOCO/LOCO oscillators, and independent IWDT-dedicated 120 kHz oscillator - all configurable via register settings without external components.

Motor control functionality is enabled by tightly coupled peripherals: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) timers synchronize with PCLKC up to 120 MHz for precise PWM edge placement; HRPWM extends GPTW0–GPTW3 output resolution to 260 ps; and ELC links analog triggers (e.g., comparator outputs) directly to timer starts/stops 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 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 R5F526TFBGFP#30, the R5F526TDDFK#30 offers compact packaging and lower memory but sacrifices HRPWM and simultaneous triple A/D sampling; the R5F566TEBDFP#30 delivers significantly higher compute throughput and memory headroom at the cost of increased power and complexity - making R5F526TFBGFP#30 the optimal balance for mainstream industrial and appliance-grade 3-phase inverter control.

Availability

R5F526TFBGFP#30 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and EV onboard charger control requiring stable component supply, long-term lifecycle support, and full traceability.

Supply support for R5F526TFBGFP#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 automotive, industrial, and IoT markets.

The RX26T Group - including R5F526TFBGFP#30 - was designed specifically for high-efficiency, safety-certifiable motor control in industrial and consumer inverter applications, integrating precision PWM, analog signal chain, and functional safety accelerators on a single die.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFBGFP#30?

The R5F526TFBGFP#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark points under benchmark conditions. This performance stems from the RXv3 CPU core's single-cycle instruction execution, 32-bit multiplier/divider, and barrel shifter - enabling deterministic real-time response for motor control loops. The R5F526TFBGFP#30 maintains this speed across its full 2.7–5.5 V supply range without wait states.

Does the R5F526TFBGFP#30 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFBGFP#30 includes dedicated hardware for IEC60730 Class B compliance: oscillation-stop detection for main clock failure, self-diagnostic A/D converter with disconnection monitoring, clock accuracy measurement circuit, independent watchdog timer (IWDTa) with window function, RAM test assistance via DOC, and CRCA for data integrity. These features reduce external component count and simplify certification - the R5F526TFBGFP#30 is widely deployed in certified industrial drives and appliances.

What PWM resolution does the R5F526TFBGFP#30 achieve, and how is it implemented?

The R5F526TFBGFP#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 PCLKC clock domain and sub-cycle interpolation logic - not software-based dithering. The R5F526TFBGFP#30 uses this capability for precise dead-time insertion and reduced torque ripple in 3-phase inverter applications.

How many A/D converter channels does the R5F526TFBGFP#30 support, and what sampling architecture does it use?

The R5F526TFBGFP#30 supports 22 total A/D input channels across three independent 12-bit S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). It implements simultaneous sampling across all three units using shared trigger sources (e.g., MTU/GPTW events), enabling synchronized acquisition of motor phase currents and DC-link voltage - a requirement for accurate field-oriented control. Each unit includes dedicated sample-and-hold circuits.

What package type and pin count does the R5F526TFBGFP#30 use, and what are its thermal characteristics?

The R5F526TFBGFP#30 uses the PLQP0100KB-B package: a 100-pin low-profile quad flat package with 14 mm × 14 mm body size, 0.5 mm pitch, and exposed thermal pad. It is rated for operation from –40°C to +85°C (D-version) and features internal thermal sensor with ±1.0°C relative precision. The package supports standard reflow soldering and provides adequate thermal dissipation for continuous 120 MHz operation in motor control applications.