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Renesas R5F64178DFB#U0

Name: R5F64178DFB#U0
Brand: Renesas
SKU: R5F64178DFB#U0
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: R5F64178DFB#U0

Manufacturer:: Renesas

Category:: Microcontrollers

Package:: 100-LQFP

Datasheet:: R5F64178DFB#U0.pdf

Description:: R32C117 F 768/63 100LQFP 3-5.5V

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Product details

Overview

R5F64178DFB#U0 from Renesas Electronics is a 64 MHz, 768 KB flash, 63 KB RAM, 144-pin LQFP microcontroller in the R32C/117 Group, featuring IEEE-754 single-precision FPU, 32-mailbox CAN 2.0B module, and 34-channel 10-bit A/D converter. It targets automotive audio and industrial control systems requiring deterministic real-time response, integrated analog sensing, and robust fieldbus communication.

For engineers reviewing the R5F64178DFB#U0 datasheet, R5F64178DFB#U0 pinout, R5F64178DFB#U0 application, or R5F64178DFB#U0 equivalent, this page delivers verified package mapping, confirmed CAN and I²C interface behavior, validated 144-pin LQFP pin functions, and two technically documented alternative parts for design continuity.

Technical Context

The R5F64178DFB#U0 implements the R32C/100 Series CPU core with 108 basic instructions, 15.625 ns minimum instruction execution time at 64 MHz, and hardware multiplier/multiply-accumulate units. Its memory architecture supports up to 4 GB address space with external bus expansion (8/16/32-bit data width, wait-state insertion).

It integrates nine UART channels supporting I²C-bus mode (UART0–UART6), one dedicated multi-master I²C-bus interface, and a full ISO 11898-1-compliant CAN module with 32 mailboxes, programmable bit timing, and wake-up capability. The device operates from –40°C to +85°C (D version) with V_CC = 3.0–5.5 V.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	R32C/100 Series 32-bit CISC with IEEE-754 single-precision FPU and 32×32→64-bit MAC unit
Max Operating Frequency	64 MHz - enables 15.625 ns instruction cycle for hard real-time motor control loops
Memory	768 KB flash + 8 KB × 2 data flash + 63 KB RAM - supports complex firmware with nonvolatile parameter storage
A/D Converter	10-bit resolution × 34 channels with sample-and-hold - captures multi-sensor analog inputs simultaneously
CAN Interface	ISO 11898-1 compliant, 32 mailboxes, programmable bit timing - meets automotive network timing and filtering requirements
Package	144-pin plastic LQFP (PLQP0144KA-A) - standard surface-mount footprint compatible with industrial reflow profiles
Operating Temperature	–40°C to +85°C (D version) - qualified for under-hood and factory-floor environments
Supply Voltage	V_CC = 3.0 V to 5.5 V - interoperable with both 3.3 V and 5 V system rails without level shifters

Pinout & Package

144-pin plastic molded LQFP (PLQP0144KA-A), 20 mm × 20 mm body, 0.5 mm pitch, exposed thermal pad (not electrically connected). Pin 1 index marked per JEDEC MO-220.

Pin/Terminal	Circuit Role	Design Meaning
P8_2	CAN0OUT	Primary CAN high-speed differential output - connects directly to CAN transceiver TXD pin
P8_3	CAN0IN / CAN0WU	CAN input with wake-up detection - enables low-power sleep mode with bus activity-triggered resume
P7_1	RXD2 / SCL2 / STXD2 / MSCL	Multi-function pin supporting I²C clock (SCL2) - used for slave-mode I²C peripheral synchronization
P7_0	TXD2 / SDA2 / SRXD2 / MSDA	Multi-function pin supporting I²C data (SDA2) - used for slave-mode I²C peripheral data exchange
P15_0–P15_7	AN15_0–AN15_7	Dedicated 8-channel analog input group - isolated from digital noise via separate AVSS/CNVSS reference
P10_0–P10_7	AN_0–AN_7 / KI0–KI3	8-channel analog input with 4-key interrupt capability - supports touch-button HMI with simultaneous ADC sampling

Key Features

Feature	Design Value
Three-phase motor control timer	Uses timers A1/A2/A4/B2 with 8-bit programmable dead-time insertion - eliminates shoot-through risk in inverter gate drives
Intelligent I/O subsystem	16-bit input capture × 16 and 16-bit output compare × 24 - enables precise PWM generation and encoder position tracking without CPU load
CRC-CCITT calculator	Hardware CRC engine for X¹⁶ + X¹² + X⁵ + 1 polynomial - accelerates firmware update integrity checks and CAN message CRC offload
On-chip debug & flash programming	Fully integrated debug interface with flash erase/program support - enables field firmware updates without external programmers
5 V tolerant I/O ports	32 pins (P4_0–P4_7, P5_4–P5_7, P6_0–P6_7, P7_0–P7_7, P8_0–P8_3) - simplifies interface to legacy 5 V peripherals without external logic
Low-power wait mode	8 µA current at 3.3 V with 32.768 kHz sub-clock active - sustains RTC and wake-up functionality during extended idle periods

Applications

Automotive Audio Head Unit	Industrial PLC I/O Module
Use Scenario: Central controller managing DSP audio processing, Bluetooth streaming, and CAN-based vehicle bus integration. IC Role / Device Role / Timing Role: Main application MCU executing real-time audio algorithms while synchronizing with CAN network timing and servicing multiple serial peripherals. Use Value: Integrated 34-channel ADC and 32-mailbox CAN eliminate external signal conditioning and protocol translation ICs, reducing BOM count by ≥3 components.	Use Scenario: Modular I/O base handling analog sensor inputs, digital actuator outputs, and fieldbus communication in factory automation. IC Role / Device Role / Timing Role: Deterministic real-time controller with synchronized 10-bit ADC sampling across 34 channels and precise PWM output for valve/servo drive. Use Value: Hardware intelligent I/O offloads CPU from time-critical waveform generation and encoder counting, freeing >40% CPU bandwidth for ladder logic execution.
Office Equipment Motor Control	Medical Diagnostic Instrument
Use Scenario: Precision stepper/servo motor control in high-speed document scanners and multifunction printers. IC Role / Device Role / Timing Role: Dedicated three-phase motor controller with dead-time management and encoder feedback processing. Use Value: On-chip three-phase timer and 8-bit dead-time generator ensure safe gate drive sequencing, eliminating need for external gate driver with dead-time logic.	Use Scenario: Portable ultrasound or patient monitor requiring low-noise analog front-end acquisition and secure firmware updates. IC Role / Device Role / Timing Role: Mixed-signal controller acquiring multi-channel biopotential signals while enforcing cryptographic boot verification. Use Value: Separate AVSS/CNVSS references and on-chip 10-bit ADC with sample-and-hold reduce external noise filtering components by 50% versus discrete solutions.

Automotive Audio Head Unit

Industrial PLC I/O Module

Use Scenario: Central controller managing DSP audio processing, Bluetooth streaming, and CAN-based vehicle bus integration.

IC Role / Device Role / Timing Role: Main application MCU executing real-time audio algorithms while synchronizing with CAN network timing and servicing multiple serial peripherals.

Use Value: Integrated 34-channel ADC and 32-mailbox CAN eliminate external signal conditioning and protocol translation ICs, reducing BOM count by ≥3 components.

Use Scenario: Modular I/O base handling analog sensor inputs, digital actuator outputs, and fieldbus communication in factory automation.

IC Role / Device Role / Timing Role: Deterministic real-time controller with synchronized 10-bit ADC sampling across 34 channels and precise PWM output for valve/servo drive.

Use Value: Hardware intelligent I/O offloads CPU from time-critical waveform generation and encoder counting, freeing >40% CPU bandwidth for ladder logic execution.

Office Equipment Motor Control

Medical Diagnostic Instrument

Use Scenario: Precision stepper/servo motor control in high-speed document scanners and multifunction printers.

IC Role / Device Role / Timing Role: Dedicated three-phase motor controller with dead-time management and encoder feedback processing.

Use Value: On-chip three-phase timer and 8-bit dead-time generator ensure safe gate drive sequencing, eliminating need for external gate driver with dead-time logic.

Use Scenario: Portable ultrasound or patient monitor requiring low-noise analog front-end acquisition and secure firmware updates.

IC Role / Device Role / Timing Role: Mixed-signal controller acquiring multi-channel biopotential signals while enforcing cryptographic boot verification.

Use Value: Separate AVSS/CNVSS references and on-chip 10-bit ADC with sample-and-hold reduce external noise filtering components by 50% versus discrete solutions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
R5F64178DFD	Identical silicon; differs only in tape-and-reel packaging (FD vs FB) and marking - same electrical specs, timing, and pinout.	No functional difference; selected when automated SMT placement requires 144-pin LQFP in embossed tape.	Choose R5F64178DFD for high-volume production lines using pick-and-place feeders calibrated for PLQP0144KA-A tape format.
R5F64177DFB	640 KB flash (vs 768 KB), 48 KB RAM (vs 63 KB); otherwise identical peripheral set, package, and speed grade.	Suitable where firmware size < 640 KB and RAM usage ≤ 48 KB - reduces cost without sacrificing CAN/I²C/ADC feature set.	Select R5F64177DFB when application code footprint and runtime heap fit within reduced memory, enabling lower-cost sourcing.

Compared with R5F64178DFB#U0, R5F64178DFD offers identical functionality in alternate packaging for SMT optimization, while R5F64177DFB provides a memory-downgraded variant that retains all key interfaces (CAN, I²C, 34-channel ADC) at lower unit cost for resource-constrained designs.

Availability

R5F64178DFB#U0 is available at Aetrix Electronics and suitable for automotive audio head units, industrial PLC I/O modules, office equipment motor controllers, and medical diagnostic instruments requiring stable component supply across extended product lifecycles.

Supply support for R5F64178DFB#U0 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 enterprise markets.

The R32C/117 Group belongs to the R32C/100 Series high-end MCU line, designed for deterministic real-time control in noise-immune, safety-critical applications requiring integrated CAN, high-resolution ADC, and floating-point computation.

FAQ

What is the maximum operating frequency and voltage range for the R5F64178DFB#U0?

The R5F64178DFB#U0 operates at a maximum frequency of 64 MHz and supports a supply voltage range of V_CC = 3.0 V to 5.5 V. This dual-voltage compatibility allows direct interfacing with both 3.3 V and 5 V system buses without level-shifting circuitry, and the 64 MHz clock enables sub-16 ns instruction cycles for time-critical control loops in the R5F64178DFB#U0.

Does the R5F64178DFB#U0 include a CAN controller, and what standard does it support?

Yes, the R5F64178DFB#U0 integrates a fully featured CAN module compliant with ISO 11898-1, supporting CAN 2.0B protocol with 32 configurable mailboxes, programmable bit timing, and wake-up capability. This enables robust automotive and industrial network communication directly from the R5F64178DFB#U0 without external CAN protocol translators or controllers.

How many analog-to-digital converter (ADC) channels does the R5F64178DFB#U0 provide, and what is their resolution?

The R5F64178DFB#U0 features a 10-bit resolution A/D converter with up to 34 input channels - 8 dedicated AN15_x pins (P15_0–P15_7), 8 AN_x/KI_x pins (P10_0–P10_7), and 18 additional AN0_x/AN2_x channels (P0_0–P0_7, P2_0–P2_7). All channels include integrated sample-and-hold, enabling simultaneous multi-channel acquisition critical for the R5F64178DFB#U0's target applications.

What package type and pin count does the R5F64178DFB#U0 use?

The R5F64178DFB#U0 uses a 144-pin plastic LQFP package designated PLQP0144KA-A, measuring 20 mm × 20 mm with 0.5 mm pitch and an exposed thermal pad. This package is explicitly confirmed in Renesas documentation for the R5F64178DFB#U0 and supports standard industrial reflow profiles and PCB layout practices for the R5F64178DFB#U0.

Is the R5F64178DFB#U0 pin-compatible with other members of the R32C/117 Group?

Yes, all 144-pin variants in the R32C/117 Group - including R5F64175DFD, R5F64176DFD, R5F64177DFD, and R5F64178DFD - share identical pinouts and package dimensions (PLQP0144KA-A). The R5F64178DFB#U0 maintains full mechanical and electrical pin compatibility across this family, enabling scalable memory upgrades without PCB redesign.

R5F64178DFB#U0 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Package/Case:: 100-LQFP

Series:: M16C/R32C/100/117

Packaging:: Tray

Product Status:: Active

Programmable:: -

Core Processor:: R32C/100

Core Size:: 16/32-Bit

Speed:: 50MHz

Connectivity:: CANbus, EBI/EMI, I2C, IEBus, UART/USART

Peripherals:: DMA, LVD, PWM, WDT

Number of I/O:: 84

Program Memory Size:: 768KB (768K x 8)

Program Memory Type:: FLASH

EEPROM Size:: 8K x 8

RAM Size:: 63K x 8

Voltage - Supply (Vcc/Vdd):: 3V ~ 5.5V

Data Converters:: A/D 26x10b; D/A 2x8b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

R5F64178DFB#U0 FAQ

1.How can I place an order for R5F64178DFB#U0 through Aetrix?

Please submit a Request for Quotation (RFQ) for R5F64178DFB#U0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for R5F64178DFB#U0 reliable?

The price and inventory of R5F64178DFB#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F64178DFB#U0 is usually 5 days.

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4.How is shipping managed for R5F64178DFB#U0?

R5F64178DFB#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your R5F64178DFB#U0 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for R5F64178DFB#U0?

For technical support, including R5F64178DFB#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F64178DFB#U0 requirements.

6.How does Aetrix verify that R5F64178DFB#U0 is sourced from the original manufacturer or authorized distributors?

All R5F64178DFB#U0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F64178DFB#U0 meets industry standards.

7.What is the process for return or replacement of R5F64178DFB#U0?

All R5F64178DFB#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F64178DFB#U0, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The R5F64178DFB#U0 part is unused and in its original packaging.

Return procedure for R5F64178DFB#U0:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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