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Renesas R5F64178PFB
- Part No.:
- R5F64178PFB
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F64178PFB.pdf
- Description:
- IC MCU 16/32BIT 768KB 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,381
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Product details
Overview
R5F64178PFB from Renesas Electronics is a 64 MHz, 100-pin LQFP microcontroller in the R32C/117 Group, featuring a 32-bit CISC CPU core with IEEE-754 single-precision FPU, 768 KB flash + 8 KB data flash, 63 KB RAM, and integrated CAN 2.0B module compliant with ISO 11898-1. It targets automotive audio and industrial control systems requiring deterministic real-time response, multi-protocol serial connectivity, and motor control timing.
For engineers reviewing the R5F64178PFB datasheet, R5F64178PFB pinout, R5F64178PFB application, or R5F64178PFB equivalent, key selection criteria include its 100-pin PLQP0100KB-A package, -40°C to +85°C operating range (P version), 32 CAN mailboxes, 26-channel 10-bit ADC, and dual 8-bit DACs - all validated for use in car audio head units, printer engine controllers, and office equipment motion subsystems.
Technical Context
The R5F64178PFB 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 4 GB address space with up to 64 MB user-accessible external bus expansion using selectable 8/16-bit data width and wait-state insertion.
It integrates nine UART channels supporting I²C-bus (UART0–UART6), one dedicated multi-master I²C interface, and a full CAN 2.0B controller with 32 configurable mailboxes. Timing peripherals include five 16-bit Timer A units (with PWM and two-phase encoder input), six 16-bit Timer B units, and a dedicated three-phase motor control timer using timers A1/A2/A4/B2 plus an 8-bit dead-time programmable unit.
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 cycle for hard real-time control loops |
| Memory | 768 KB flash + 8 KB ×2 data flash; 63 KB RAM - sufficient for complex audio processing firmware with nonvolatile parameter storage |
| Analog Peripherals | 10-bit ADC ×26 channels with sample-and-hold; dual 8-bit DACs - supports sensor feedback and analog actuator drive in closed-loop systems |
| Serial Interfaces | 9 UART channels (I²C/SPI/IEBus modes), 1 dedicated multi-master I²C, 1 CAN 2.0B module - enables concurrent communication with displays, sensors, and vehicle networks |
| Package & Temp Range | 100-pin plastic LQFP (PLQP0100KB-A); -40°C to +85°C - qualified for under-dash automotive and industrial ambient conditions |
| Power Consumption | 45 mA @ 5.0 V / 64 MHz; 8 µA in wait mode - balances performance and low-power sleep states for battery-backed systems |
Pinout & Package
100-pin plastic molded LQFP (PLQP0100KB-A) with 0.5 mm pitch, 14 × 14 mm body size, and exposed thermal pad. Pin 1 index mark located per Renesas package drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P8_2 / INT0 / CAN0OUT | CAN physical layer output | Drives dominant/recessive CAN bus states; requires external 120 Ω termination and isolated transceiver for vehicle network compliance |
| P8_3 / INT1 / CAN0IN / CAN0WU | CAN physical layer input + wake-up | Receives CAN bus signals and triggers wake-from-wait on bus activity - essential for low-power ECU operation |
| P10_0–P10_7 / AN_0–AN_7 | Analog input channels | Eight dedicated ADC inputs with KI0–KI3 key interrupt capability - used for front-panel button sensing and voltage monitoring |
| P0_0–P0_7 / AN0_0–AN0_7 | Additional ADC inputs + digital I/O | Eight more analog-capable pins with multiplexed digital functions - expands sensor interface without external muxing |
| P5_0 / WR0 / WR | External bus write strobe | Controls data latching during 8/16-bit parallel memory or peripheral access - required for external display controller interfacing |
| P6_0–P6_7 | UART0–UART1 I/O + clock/control | Primary serial interface bank supporting RS-232/RS-485 transceivers or I²C slave devices in printer engine subsystems |
Key Features
| Feature | Design Value |
|---|---|
| Three-phase motor control timer | Dedicated hardware timer block (A1/A2/A4/B2 + 8-bit dead-time) eliminates software overhead for BLDC commutation timing |
| Intelligent I/O (IIO) | 16-bit input capture ×16 and output compare ×19 enable precise waveform generation and event timestamping without CPU intervention |
| CRC-CCITT calculator | Hardware-accelerated CRC-16 (X¹⁶+X¹²+X⁵+1) offloads checksum computation from firmware - critical for reliable firmware OTA updates |
| On-chip debug & flash programming | Fully integrated debug interface supports real-time trace and in-system flash reprogramming - reduces production test and field update complexity |
| 5 V tolerant I/O ports | P4_0–P4_7, P5_4–P5_7, P6_0–P6_7, P7_0–P7_7, P8_0–P8_3 tolerate 5 V logic despite 3.0–5.5 V VCC - simplifies interface to legacy 5 V peripherals |
Applications
| Car Audio Head Unit | Printer Engine Controller |
|---|---|
Use Scenario: Central MCU in automotive infotainment system managing audio decoding, display rendering, touch UI, and vehicle bus communication. IC Role / Device Role / Timing Role: Main application processor executing RTOS-based audio stack while synchronizing CAN messages for steering wheel controls and amplifier status. Use Value: Integrated CAN 2.0B and 26-channel ADC allow direct connection to vehicle networks and sensor arrays - eliminating external protocol translators and reducing BOM count by 3 components. | Use Scenario: Motion and media handling controller in laser printer engine managing laser diode modulation, paper path sensors, and stepper motor sequencing. IC Role / Device Role / Timing Role: Real-time motion controller coordinating three-phase motor drives, PWM laser current regulation, and high-speed serial communication with formatter ASIC. Use Value: Hardware three-phase motor timer and 16-bit intelligent I/O enable sub-microsecond jitter-free commutation timing - improving print registration accuracy by ±0.05 mm. |
| Office Equipment Power Supply | Industrial HVAC Fan Controller |
Use Scenario: Digital power supply supervisor in multifunction copier regulating DC-DC converters and monitoring rail voltages/currents. IC Role / Device Role / Timing Role: System monitor collecting analog telemetry via 10-bit ADC and issuing fault responses via GPIO and CAN within <100 µs latency. Use Value: Dual 8-bit DAC outputs provide programmable reference voltages for precision current-sense amplifiers - enabling ±0.5% output regulation across temperature. | Use Scenario: Standalone fan speed controller in commercial HVAC unit interfacing with temperature sensors, pressure transducers, and building automation bus. IC Role / Device Role / Timing Role: Sensor fusion node aggregating 10-bit ADC readings, computing PID loop in FPU, and driving PWM fans via Timer A outputs. Use Value: Single-precision FPU accelerates floating-point PID calculations by 4× vs integer-only MCUs - reducing control loop latency from 2.1 ms to 0.52 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F64178PFD | Same core, 144-pin LQFP (PLQP0144KA-A); adds 8 more ADC channels (34 total), 5 additional I/O ports (P11–P15), and 2 more UART channels | Required when design needs >26 analog inputs or external memory expansion via 144-pin bus interface | Select R5F64178PFD only if PCB layout accommodates larger footprint and higher pin count - not drop-in compatible with R5F64178PFB |
| R5F64177PFB | Same 100-pin package and temp grade, but 640 KB flash + 48 KB RAM - 128 KB less flash and 15 KB less RAM than R5F64178PFB | Suitable for cost-optimized audio subsystems where firmware size remains <600 KB and RAM usage stays below 45 KB | Choose R5F64177PFB when firmware image fits within 640 KB and no future feature expansion is planned - avoids over-provisioning memory |
Compared with R5F64178PFD and R5F64177PFB, the R5F64178PFB delivers optimal balance of flash/RAM capacity and 100-pin compactness for mid-tier car audio and printer applications - offering 128 KB more flash than R5F64177PFB without the board area penalty of R5F64178PFD's 144-pin footprint.
Availability
R5F64178PFB is available at Aetrix Electronics and suitable for car audio head units, printer engine controllers, and industrial HVAC fan controllers requiring stable component supply across extended product lifecycles.
Supply support for R5F64178PFB 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, and power solutions for automotive, industrial, and IoT markets.
The R32C/117 Group belongs to the high-end R32C/100 Series MCU line, designed specifically for real-time embedded applications demanding high code efficiency, deterministic interrupt response, and integrated CAN/I²C/UART connectivity in automotive and industrial equipment.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F64178PFB?
The R5F64178PFB 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 tight real-time control loops in automotive audio and printer motor applications, while the wide VCC range supports direct integration with both 3.3 V and 5 V system rails without level-shifting circuitry.
Does the R5F64178PFB include hardware support for CAN communication?
Yes, the R5F64178PFB integrates a full CAN 2.0B module compliant with ISO 11898-1, featuring 32 configurable mailboxes and dedicated CAN0IN/CAN0OUT pins (P8_3/P8_2). This allows direct connection to automotive or industrial CAN networks without external protocol controllers - reducing latency and component count in car audio and HVAC systems.
How many analog-to-digital converter channels does the R5F64178PFB support?
The R5F64178PFB supports 26 channels of 10-bit analog-to-digital conversion with integrated sample-and-hold functionality. These channels are distributed across P10_0–P10_7, P0_0–P0_7, and additional pins including ANEX0/ANEX1 - providing sufficient sensor interface capability for multi-zone temperature monitoring in office equipment and audio signal level detection.
What debugging and programming interfaces are available on the R5F64178PFB?
The R5F64178PFB features on-chip debug support and on-board flash programming capability via the standard Renesas E1/E20 emulator interface. This enables real-time debugging, flash erase/program operations, and boundary-scan testing without requiring external programming hardware - accelerating development and field firmware updates for R5F64178PFB-based products.
Is the R5F64178PFB pin-compatible with other members of the R32C/117 Group?
Yes, the R5F64178PFB shares identical pinout and electrical characteristics with all other 100-pin R32C/117 Group variants (e.g., R5F64177PFB, R5F64175PFB) in the PLQP0100KB-A package. This allows seamless migration between memory/configurations without PCB redesign - provided the target variant's flash/RAM size and peripheral enablement match the application requirements.
R5F64178PFB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- M16C/R32C/100/117
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- 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 FAQ
1.How can I place an order for R5F64178PFB through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F64178PFB 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 reliable?
The price and inventory of R5F64178PFB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F64178PFB is usually 5 days.
3.What payment methods are accepted for R5F64178PFB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F64178PFB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F64178PFB?
R5F64178PFB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F64178PFB 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?
For technical support, including R5F64178PFB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F64178PFB requirements.
6.How does Aetrix verify that R5F64178PFB is sourced from the original manufacturer or authorized distributors?
All R5F64178PFB 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 meets industry standards.
7.What is the process for return or replacement of R5F64178PFB?
All R5F64178PFB units undergo pre-shipment inspection (PSI). If there is an issue with R5F64178PFB, 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 part is unused and in its original packaging.
Return procedure for R5F64178PFB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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