Renesas R5F64189DFD#UB

Overview

R5F64189DFD#UB from Renesas Electronics is a 64 MHz, 1 MB flash, 63 KB RAM, 144-pin LQFP microcontroller in the R32C/118 Group, featuring dual CAN 2.0B modules, 34-channel 10-bit ADC, nine UARTs (including I²C-bus mode), and IEEE-754 single-precision FPU - deployed in automotive audio head units and industrial motor control systems.

For engineers reviewing the R5F64189DFD#UB datasheet, R5F64189DFD#UB pinout, R5F64189DFD#UB application, or R5F64189DFD#UB equivalent, this page delivers verified package mapping, validated peripheral register-level functions, confirmed CAN timing compliance per ISO 11898-1, and real-world design constraints for 5 V-tolerant I/O and external bus expansion.

Technical Context

The R5F64189DFD#UB implements the R32C/100 Series CPU core with 32-bit CISC architecture, 108 basic instructions, and 15.625 ns minimum instruction cycle at 64 MHz. It integrates a 32×32→64-bit multiplier, 32×32+64→64-bit MAC unit, and single-precision floating-point unit compliant with IEEE-754.

Its memory subsystem includes 1 MB on-chip flash (1,000 program/erase cycles), 4 KB × 2 data flash blocks, and 63 KB RAM. The device supports 4 GB address space with external bus interface offering wait-state insertion, four chip selects, and selectable 8/16/32-bit data bus width in separate or multiplexed mode.

Key Specifications

Pinout & Package

144-pin plastic molded LQFP (PLQP0144KA-A) package with 0.5 mm pitch, 20 mm × 20 mm body size, and exposed thermal pad. Pin 1 index marked per JEDEC MO-220.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F64189PFD#UB, the R5F64189DFD#UB shares identical electrical and timing behavior but carries D-grade qualification; versus R5F64188DFD#UB, it adds 232 KB flash for bootloader redundancy, OTA update partitioning, or enhanced diagnostics - critical in safety-monitored systems.

Availability

R5F64189DFD#UB is available at Aetrix Electronics and suitable for automotive audio head units, industrial PLC I/O modules, brushless motor drive controllers, and office equipment mainboards requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F64189DFD#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The R32C/118 Group belongs to the high-end R32C/100 Series MCU line, designed for deterministic real-time control in noise-immune automotive and industrial environments with integrated CAN, high-resolution ADC, and external memory expansion.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F64189DFD#UB?

The R5F64189DFD#UB operates at a maximum frequency of 64 MHz in high-speed mode, with a supply voltage range of 3.0 V to 5.5 V. It achieves a minimum instruction execution time of 15.625 ns at 64 MHz. The device supports low-power wait mode consuming just 8 µA at 3.3 V with 32.768 kHz sub-clock active, making it suitable for battery-backed applications requiring periodic wake-up.

Does the R5F64189DFD#UB support CAN FD or only classical CAN 2.0B?

The R5F64189DFD#UB supports only classical CAN 2.0B protocol, compliant with ISO 11898-1. It does not implement CAN FD features such as flexible data-rate, larger payload (up to 64 bytes), or improved error detection. Its dual CAN modules provide 32 dedicated mailboxes with hardware acceptance filtering and time-triggered transmission scheduling - sufficient for most automotive body control and industrial fieldbus applications.

How many analog input channels does the R5F64189DFD#UB support, and what is their resolution?

The R5F64189DFD#UB supports 34 analog input channels with 10-bit resolution and integrated sample-and-hold circuitry. These channels are distributed across AN_0–AN_7 (8 channels), AN0_0–AN0_7 (8 channels), AN2_0–AN2_7 (8 channels), AN15_0–AN15_7 (8 channels), and two external analog inputs ANEX0/ANEX1 - enabling simultaneous sampling for motor phase current monitoring and system health diagnostics.

What package type and pin count does the R5F64189DFD#UB use?

The R5F64189DFD#UB uses a 144-pin plastic molded LQFP package designated PLQP0144KA-A (JEDEC MO-220 compliant), with 20 mm × 20 mm body size and 0.5 mm lead pitch. This package provides full access to all peripherals including dual CAN, nine UARTs, external bus interface, and 120 CMOS I/O ports - 32 of which are 5 V tolerant for mixed-voltage system interfacing.

Is the R5F64189DFD#UB pin-compatible with other members of the R32C/118 Group?

Yes, the R5F64189DFD#UB is pin-compatible with all other 144-pin variants in the R32C/118 Group, including R5F64185DFD#UB through R5F64188DFD#UB. All share identical PLQP0144KA-A footprint, pin assignments, and peripheral signal mapping - allowing hardware reuse across flash density variants while maintaining identical PCB layout and signal integrity characteristics.