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Renesas R5F64178PFB#UC
- Part No.:
- R5F64178PFB#UC
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F64178PFB#UC.pdf
- Description:
- MCU2 M32C(GENERAL) R32C/100X_150
- Quantity:
- Payment:
- Shipping:
Inventory:2,006
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Product details
Overview
R5F64178PFB#UC from Renesas Electronics is a 64 MHz high-speed 32-bit CISC microcontroller in the R32C/117 Group, featuring 768 KB flash, 63 KB RAM, 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 processing, on-chip debug, and robust EMI immunity.
For engineers reviewing the R5F64178PFB#UC datasheet, R5F64178PFB#UC pinout, R5F64178PFB#UC application, or R5F64178PFB#UC equivalent, this page delivers verified technical context, package mapping, functional pin roles, real-world use cases, and validated alternative options for design-in and supply continuity planning.
Technical Context
The R5F64178PFB#UC implements the R32C/100 Series CPU core with 108 basic instructions, 15.625 ns minimum instruction cycle at 64 MHz, 32×32→64-bit multiplier, and 32-bit barrel shifter. 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 multi-master I²C interface, one ISO 11898-1-compliant CAN module with 32 mailboxes, and dual 8-bit D/A converters. The intelligent I/O subsystem provides 16-bit input capture (16 channels) and 16-bit output compare (24 channels) for precise timing control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R32C/100 Series 32-bit CISC with IEEE-754 single-precision FPU and 32-bit barrel shifter |
| Max Operating Frequency | 64 MHz - enables 15.625 ns instruction execution for hard real-time motor control loops |
| Memory | 768 KB flash + 8 KB ×2 data flash + 63 KB RAM - supports complex firmware with field-upgradable parameters |
| A/D Converter | 10-bit resolution × 34 channels with sample-and-hold - sufficient for multi-sensor industrial monitoring |
| CAN Interface | ISO 11898-1 compliant, 32 mailboxes - handles concurrent CAN FD-ready messaging without host CPU overhead |
| Package | 100-pin LQFP (PLQP0100KB-A) - standard surface-mount footprint compatible with automated assembly |
| Operating Temp | −40°C to +85°C (P version) - qualified for under-hood automotive and factory-floor environments |
| Supply Voltage | 3.0 V to 5.5 V - interoperable with legacy 5 V logic and modern low-voltage power rails |
Pinout & Package
100-pin plastic molded LQFP (PLQP0100KB-A), 14 mm × 14 mm body, 0.5 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P8_2 | CAN0OUT / INT0 | CAN high-speed differential transmitter output and external interrupt 0 input |
| P8_3 | CAN0IN / CAN0WU / INT1 | CAN receiver input with wake-up capability and external interrupt 1 input |
| P10_0–P10_7 | AN_0–AN_7 | Eight dedicated analog inputs for 10-bit A/D conversion, referenced to AVCC/AVSS |
| P0_0–P0_7 | AN0_0–AN0_7 / D0–D7 | Eight analog-capable port pins with multiplexed digital I/O and ADC channel routing |
| P6_0–P6_7 | UART0–UART1 / CLK0–CLK1 / CTS0–CTS1 | Primary serial interface bank supporting full-duplex UART, clock output, and hardware flow control |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU state and initializes peripherals to known values |
| XIN / XOUT | Main crystal oscillator inputs | Supports 1–20 MHz external crystal for precise system clock generation |
| XCIN / XCOUT | Sub-clock oscillator inputs | Connects 32.768 kHz crystal for RTC and low-power wait-mode timing |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Enables real-time trace, breakpoint setting, and flash programming without external emulator hardware |
| Three-phase motor control timer | Dedicated hardware block using TA1–TA4 and TB2 with 8-bit dead-time programmability for inverter gate drive |
| DMAC II peripheral | Interrupt-triggered transfers with immediate data, calculation result, and chain transfer modes - offloads CPU during sensor data acquisition |
| CRC-CCITT calculator | Hardware-accelerated CRC-CCITT (X¹⁶+X¹²+X⁵+1) for reliable firmware update packet validation |
| 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) tolerate 5 V inputs while operating at 3.3 V core voltage |
| Intelligent I/O subsystem | 16-bit input capture (16 channels) and 16-bit output compare (19 channels) for encoder feedback and PWM waveform generation |
Applications
| Automotive Audio Head Unit | Industrial PLC I/O Module |
|---|---|
Use Scenario: Central controller managing DSP audio processing, USB/SD card playback, CAN-based vehicle network communication, and display interface. IC Role / Device Role / Timing Role: Main application MCU executing real-time audio algorithms, coordinating peripheral DMA transfers, and servicing CAN message queues with deterministic latency. Use Value: Integrated 32-mailbox CAN, 34-channel A/D for sensor monitoring, and 64 MHz performance eliminate need for external co-processors or bus bridges. | Use Scenario: Modular I/O base unit acquiring analog sensor signals (temperature, pressure), driving relay outputs, and communicating via CANopen to supervisory HMI. IC Role / Device Role / Timing Role: Deterministic real-time controller with three-phase motor timer for servo drive coordination and intelligent I/O for synchronized input sampling/output switching. Use Value: On-chip 10-bit A/D (34 ch), dual 8-bit D/A, and 19-channel output compare enable precise closed-loop control without external DACs or timing ICs. |
| Office Equipment Motor Control | Factory Automation Gateway |
Use Scenario: High-speed printer engine controller managing stepper/servo motors, paper path sensors, and USB host interface for job commands. IC Role / Device Role / Timing Role: Real-time motion controller using three-phase motor timer and intelligent I/O to generate synchronized PWM waveforms with programmable dead time. Use Value: Hardware motor control timer with 8-bit dead-time register reduces firmware complexity and ensures safe gate-drive sequencing across temperature ranges. | Use Scenario: Protocol translation gateway connecting Modbus RTU field devices to CAN-based control network in packaging machinery. IC Role / Device Role / Timing Role: Dual-interface bridge processor running UART-based Modbus slave stack and CAN 2.0B master stack concurrently with minimal CPU load. Use Value: Nine UART channels (including I²C-bus mode) and dedicated CAN module allow simultaneous multi-protocol handling without external transceivers or protocol ASICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F64178PFD#UC | Same core, 144-pin LQFP (PLQP0144KA-A), adds 14 additional I/O pins and 8 extra A/D channels (34 → 34, but more routing flexibility) | Required when board layout needs >100 I/Os or additional analog inputs beyond PFB's 100-pin constraint | Select PFD only if pin count and A/D channel expansion are mandatory; PFB offers identical functionality in smaller footprint. |
| R5F64177PFB#UC | Same 100-pin package, lower memory (640 KB flash + 48 KB RAM), same peripherals and speed grade | Suitable for cost-sensitive designs where firmware size and RAM usage fit within reduced capacity | Choose PFB over P7 for future-proofing: 768 KB flash allows larger feature sets and field updates without hardware revision. |
Compared with R5F64177PFB#UC, the R5F64178PFB#UC provides 128 KB more flash and 15 KB more RAM for enhanced firmware scalability, while R5F64178PFD#UC trades package compactness for expanded I/O and memory routing - making R5F64178PFB#UC the optimal balance of integration, size, and headroom for mid-tier automotive and industrial control.
Availability
R5F64178PFB#UC is available at Aetrix Electronics and suitable for automotive audio head units, industrial PLC I/O modules, office equipment motor controllers, and factory automation gateways requiring stable component supply across extended product lifecycles.
Supply support for R5F64178PFB#UC 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/117 Group belongs to the high-end R32C/100 Series, designed for deterministic real-time control in noise-prone environments such as automotive infotainment and factory automation.
FAQ
What is the maximum operating frequency of the R5F64178PFB#UC?
The R5F64178PFB#UC operates at a maximum frequency of 64 MHz, delivering a minimum instruction execution time of 15.625 ns. This high-speed capability is enabled by its R32C/100 Series CPU core with integrated PLL and supports demanding real-time tasks like motor control and audio signal processing. The R5F64178PFB#UC achieves this performance across its full −40°C to +85°C operating range.
Does the R5F64178PFB#UC include a CAN interface, and what standard does it support?
Yes, the R5F64178PFB#UC integrates a single-channel CAN module compliant with ISO 11898-1 (CAN 2.0B). It features 32 dedicated mailboxes for efficient message filtering and queuing, enabling robust communication in automotive and industrial networks. The R5F64178PFB#UC supports both standard and extended frame formats with programmable bit timing, and includes CAN wake-up functionality on the CAN0IN pin.
How much flash and RAM memory does the R5F64178PFB#UC provide?
The R5F64178PFB#UC provides 768 KB of on-chip flash memory and 63 KB of RAM, plus two 4 KB data flash blocks for nonvolatile parameter storage. This memory configuration supports complex firmware with real-time OS, communication stacks, and calibration data. The R5F64178PFB#UC also includes ROM code protection and ID code protection to secure intellectual property.
What analog-to-digital capabilities does the R5F64178PFB#UC offer?
The R5F64178PFB#UC features a 10-bit A/D converter with up to 34 input channels, including dedicated AN_0–AN_7 and AN0_0–AN0_7 pins, all with integrated sample-and-hold circuitry. It supports simultaneous sampling across multiple channels and flexible trigger sources (software, timer, external). The R5F64178PFB#UC also includes two 8-bit D/A converters for analog output generation in closed-loop control applications.
Is the R5F64178PFB#UC pin-compatible with other members of the R32C/117 Group?
Yes, the R5F64178PFB#UC shares identical pinout and peripheral mapping with all other 100-pin variants in the R32C/117 Group, including R5F64177PFB#UC and R5F64176PFB#UC. This allows direct substitution within the same package family for memory or feature scaling without PCB redesign. The R5F64178PFB#UC maintains consistent signal assignments across its temperature grades (N/D/P) and speed versions (H/none).
R5F64178PFB#UC 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:
R5F64178PFB#UC FAQ
1.How can I place an order for R5F64178PFB#UC through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F64178PFB#UC 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 R5F64178PFB#UC reliable?
The price and inventory of R5F64178PFB#UC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F64178PFB#UC is usually 5 days.
3.What payment methods are accepted for R5F64178PFB#UC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F64178PFB#UC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F64178PFB#UC?
R5F64178PFB#UC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F64178PFB#UC 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 R5F64178PFB#UC?
For technical support, including R5F64178PFB#UC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F64178PFB#UC requirements.
6.How does Aetrix verify that R5F64178PFB#UC is sourced from the original manufacturer or authorized distributors?
All R5F64178PFB#UC 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 R5F64178PFB#UC meets industry standards.
7.What is the process for return or replacement of R5F64178PFB#UC?
All R5F64178PFB#UC units undergo pre-shipment inspection (PSI). If there is an issue with R5F64178PFB#UC, 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 R5F64178PFB#UC part is unused and in its original packaging.
Return procedure for R5F64178PFB#UC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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