Renesas R5F64169DFD

Overview

R5F64169DFD from Renesas Electronics is a 144-pin LQFP 32-bit CISC microcontroller in the R32C/116 Group, featuring a 64 MHz CPU core, 1 Mbyte flash + 8 Kbytes data flash, 63 Kbytes RAM, IEEE-754 single-precision FPU, and nine UART channels with multi-master I²C support - deployed in industrial motor control and audio subsystems.

For engineers reviewing the R5F64169DFD datasheet, R5F64169DFD pinout, R5F64169DFD application, or R5F64169DFD equivalent, key selection criteria include its 144-pin PLQP0144KA-A package, -40°C to +85°C operating range, 32-bit barrel shifter, 34-channel 10-bit ADC, and integrated three-phase motor control timer with 8-bit dead-time programming.

Technical Context

The R5F64169DFD implements the R32C/100 Series CPU core with 108 basic instructions, 15.625 ns minimum instruction cycle at 64 MHz, and hardware multiplier/multiply-accumulate units. Its memory architecture supports up to 4 Gbytes address space with external bus expansion (8/16/32-bit data width, wait-state insertion, 4 chip selects).

Peripheral integration includes DMAC (4 channels, 57 request sources), intelligent I/O (16-bit input capture ×16, output compare ×24), CRC-CCITT calculator, X-Y converter, and dual 8-bit DACs - all coordinated via 261 interrupt vectors and 7 priority levels for deterministic real-time response.

Key Specifications

Pinout & Package

144-pin plastic molded LQFP (PLQP0144KA-A) with exposed thermal pad; 120 CMOS I/O ports (32 are 5 V tolerant), 2 input-only ports, and dedicated analog inputs (AN_0–AN_7, AN0_0–AN0_7, AN15_0–AN15_7, ANEX0/ANEX1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F64169DFD, R5F64169PFD adds extended reliability screening for mission-critical industrial use, while R5F64168DFD reduces flash capacity by 256 Kbytes without altering peripheral functionality or package compatibility.

Availability

R5F64169DFD is available at Aetrix Electronics and suitable for industrial motor control, car audio head units, office equipment scanners, and home appliance control panels requiring stable component supply across multi-year production cycles.

Supply support for R5F64169DFD 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, and power solutions for automotive, industrial, and IoT markets.

The R32C/116 Group belongs to the high-end R32C/100 Series MCU line, designed specifically for real-time embedded applications demanding high code efficiency, rich peripheral integration, and deterministic timing - especially in motor control and audio processing.

FAQ

What is the maximum operating frequency and voltage range for the R5F64169DFD?

The R5F64169DFD operates at a maximum frequency of 64 MHz with a supply voltage range of 3.0 V to 5.5 V. It achieves a minimum instruction execution time of 15.625 ns under these conditions. The device supports low-power modes including wait mode (8 µA at 3.3 V, 32.768 kHz sub-clock) and stop mode, making it suitable for battery-backed or energy-sensitive industrial applications. All timing specifications are validated across the full -40°C to +85°C temperature range.

Does the R5F64169DFD support hardware-based three-phase motor control?

Yes, the R5F64169DFD integrates a dedicated three-phase motor control timer using timers A1, A2, A4, and B2, with an 8-bit programmable dead-time generator. This hardware block enables precise, jitter-free gate drive signal generation for BLDC and PMSM inverters without CPU intervention. The R5F64169DFD also provides 34-channel 10-bit ADC with sample-and-hold for simultaneous current sensing, and intelligent I/O for encoder input capture - forming a complete motor control subsystem within a single R5F64169DFD die.

How many UART and I²C interfaces does the R5F64169DFD provide?

The R5F64169DFD provides nine asynchronous/synchronous serial interface channels (UART0 through UART8), eight of which support I²C-bus functionality (UART0–UART6 plus UART8 in special mode). It also includes one dedicated multi-master I²C-bus interface. This configuration allows concurrent communication with up to nine peripherals - for example, connecting to an audio codec (I²C), display controller (UART), motor driver (UART), and sensor hub (I²C) simultaneously - all managed by a single R5F64169DFD without external bus expanders.

What is the flash memory endurance and security protection offered by the R5F64169DFD?

The R5F64169DFD guarantees a minimum endurance of 1,000 program/erase cycles for its 1 Mbyte flash memory, with programming and erasure supported at standard VCC (3.0–5.5 V). Security features include ROM code protection to prevent unauthorized firmware readout and ID code protection to authenticate authorized programming sessions. Debug access can be locked via on-chip security fuses, and flash programming is performed in-system using the on-chip debug interface - ensuring secure, field-upgradable firmware deployment for the R5F64169DFD.

Is the R5F64169DFD pin-compatible with other devices in the R32C/116 Group?

Yes, the R5F64169DFD shares identical pinout and package (PLQP0144KA-A, 144-pin LQFP) with all other 144-pin R32C/116 Group variants, including R5F64165DFD, R5F64167DFD, and R5F64168DFD. Peripheral mapping, I/O function assignment, and power/ground pin locations are fully consistent across this package family. This enables direct hardware reuse and firmware portability - for example, upgrading from R5F64168DFD to R5F64169DFD requires only flash reprogramming, with no PCB or schematic changes needed for the R5F64169DFD.