Renesas R5F64175DFB#UB

Overview

R5F64175DFB#UB from Renesas Electronics is a 64 MHz high-speed 32-bit CISC microcontroller in the R32C/117 Group, featuring 384 KB flash, 40 KB RAM, IEEE-754 single-precision FPU, 32 CAN mailboxes, and 34-channel 10-bit A/D conversion. It targets automotive and industrial control systems requiring deterministic real-time response, CAN bus integration, and mixed-signal processing.

For engineers reviewing the R5F64175DFB#UB datasheet, R5F64175DFB#UB pinout, R5F64175DFB#UB application, or R5F64175DFB#UB equivalent, key selection criteria include CAN 2.0B compliance, 144-pin LQFP package with 5 V-tolerant I/O, 64 MHz CPU clock, integrated DMAC II for peripheral-triggered transfers, and multi-master I²C support for sensor networks.

Technical Context

The R5F64175DFB#UB implements the R32C/100 Series CPU core with 108 basic instructions, 15.625 ns minimum instruction execution time at 64 MHz, and hardware multiplier/MAC units. Its memory architecture supports up to 4 GB address space with external bus expansion (8/16-bit data width, wait-state insertion).

It integrates nine UART channels supporting I²C-bus mode (UART0–UART6), one dedicated multi-master I²C interface, and a full ISO 11898-1-compliant CAN module with 32 configurable mailboxes and programmable bit timing. The intelligent I/O subsystem provides 16-bit input capture and 24-bit output compare functions across 16/24 channels respectively.

Key Specifications

Pinout & Package

144-pin plastic molded LQFP (PLQP0144KA-A) package with exposed pad thermal design, 0.5 mm pitch, and 20 mm × 20 mm body size. Pin 1 index mark located per Renesas package drawing PLQP0144KA-A.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F64175NFD, R5F64175DFB#UB adds −40°C operational capability essential for automotive engine compartments; compared with R5F64176DFD, it reduces flash capacity by 128 KB while maintaining identical peripheral functionality and thermal performance, lowering unit cost without sacrificing real-time control capability.

Availability

R5F64175DFB#UB is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O bases, car audio head units, and office equipment motor drives requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F64175DFB#UB 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 R32C/117 Group belongs to the R32C/100 Series high-end MCU line, designed specifically for deterministic real-time control applications demanding CAN connectivity, high-resolution analog acquisition, and computational performance in harsh environments.

FAQ

What is the maximum operating frequency and voltage range for the R5F64175DFB#UB?

The R5F64175DFB#UB operates at a maximum frequency of 64 MHz with a supply voltage range of 3.0 V to 5.5 V. This high-speed capability enables sub-16 ns instruction execution, making it suitable for time-critical control tasks such as motor commutation and CAN frame processing. The wide voltage range supports direct integration with legacy 5 V systems and modern low-voltage designs without level-shifting.

Does the R5F64175DFB#UB include an integrated CAN controller, and what standard does it support?

Yes, the R5F64175DFB#UB includes a fully integrated CAN module compliant with ISO 11898-1 (CAN 2.0B). It provides 32 configurable mailboxes, hardware message filtering, and programmable bit timing to support data rates up to 1 Mbps. The R5F64175DFB#UB requires an external CAN transceiver (e.g., TJA1042) for physical layer interfacing but handles all protocol-level functions internally.

How many analog-to-digital converter channels does the R5F64175DFB#UB support, and what is their resolution?

The R5F64175DFB#UB supports 34 channels of 10-bit analog-to-digital conversion with integrated sample-and-hold functionality. These channels are distributed across three banks (AN_0–AN_7, AN0_0–AN0_7, AN15_0–AN15_7), all accessible in the 144-pin package. The R5F64175DFB#UB's ADC supports simultaneous sampling triggers from timers or external events, enabling synchronized acquisition for motor current sensing.

What package type and pin count does the R5F64175DFB#UB use, and are any pins 5 V tolerant?

The R5F64175DFB#UB uses a 144-pin plastic LQFP package (PLQP0144KA-A) with 0.5 mm pitch. It features 120 general-purpose CMOS I/O ports, of which 32 pins (P4_0–P4_7, P5_4–P5_7, P6_0–P6_7, P7_0–P7_7, and P8_0–P8_3) are explicitly specified as 5 V tolerant. This allows direct interfacing with legacy 5 V logic and sensors without external level shifters.

Is the R5F64175DFB#UB supported by Renesas' debugging and programming tools?

Yes, the R5F64175DFB#UB supports on-chip debug via JTAG and FINE interfaces, and on-board flash programming through the built-in bootloader. It is compatible with Renesas E2 emulator, CS+ IDE, and Flash Development Toolkit. The R5F64175DFB#UB also includes ROM code protection and ID code protection features to secure firmware intellectual property during development and mass production.