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Renesas R5F64185DFB#U0
- Part No.:
- R5F64185DFB#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F64185DFB#U0.pdf
- Description:
- IC MCU 16/32BIT 384KB 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,570
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Product details
Overview
R5F64185DFB#U0 from Renesas Electronics is a 50 MHz normal-speed 100-pin LQFP microcontroller in the R32C/118 Group, featuring a 32-bit CISC CPU core with IEEE-754 single-precision FPU, 384 KB flash + 8 KB data flash, 40 KB RAM, dual CAN 2.0B modules (32 mailboxes), and 26-channel 10-bit A/D converter. It targets automotive audio and industrial control systems requiring deterministic real-time response and robust serial connectivity.
For engineers reviewing the R5F64185DFB#U0 datasheet, R5F64185DFB#U0 pinout, R5F64185DFB#U0 application, or R5F64185DFB#U0 equivalent, this page delivers verified functional specifications, package mapping, I/O role definitions, and validated alternative options for design-in and supply continuity planning.
Technical Context
The R5F64185DFB#U0 implements the R32C/100 Series CPU core with 108 basic instructions, 15.625 ns minimum instruction cycle at 64 MHz (operating at 50 MHz nominal), 32×32→64-bit multiplier, and multiply-accumulate unit. 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 dedicated multi-master I²C interface, two ISO 11898-1-compliant CAN controllers, and intelligent I/O with 16-bit input capture (16 channels) and output compare (19 channels) - all synchronized to a configurable clock generator with main/sub/PLL/on-chip oscillator circuits.
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 | 50 MHz - enables deterministic real-time execution with 20 ns instruction cycle time |
| Memory | 384 KB flash + 8 KB data flash (1,000 program/erase cycles); 40 KB RAM |
| Analog Peripherals | 10-bit A/D converter with 26 input channels and sample-and-hold; dual 8-bit D/A converters |
| Serial Interfaces | 9 UART channels (I²C-bus/Special Mode 2 support), 1 dedicated multi-master I²C, 2 CAN 2.0B modules (32 mailboxes) |
| Package & Temp Range | 100-pin plastic LQFP (PLQP0100KB-A); industrial grade –40°C to +85°C (D version) |
| Power Management | Wait mode current: 8 µA @ 3.3 V / 32.768 kHz; operates from 3.0 V to 5.5 V supply |
Pinout & Package
100-pin plastic molded LQFP (PLQP0100KB-A), 14 × 14 mm body, 0.5 mm pitch, exposed pad not specified. Pin functions mapped per Renesas R01DS0065EJ0120 Rev.1.20 Figures 1.4 and Tables 1.11–1.13.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog inputs / port data lines | 8-channel A/D input AN0_0–AN0_7; also serve as general-purpose CMOS I/O with 5 V tolerance on P4/P5/P6/P7/P8 subsets |
| P10_0–P10_7 | Analog inputs / key interrupt inputs | 8-channel A/D input AN_0–AN_7 plus KI0–KI3 key wake-up capability |
| P6_0–P6_7 | UART0–UART1 / CAN0/CAN1 physical layer | Supports TXD0/RXD0 (CAN0), TXD1/RXD1 (CAN1), and CTS0/RTS0/SS0 handshaking |
| P7_0–P7_7 | UART2–UART5 / timer I/O / intelligent I/O | TA0OUT–TA4OUT outputs, RXD2–RXD5 inputs, and IIO1_0–IIO1_7 for input capture/output compare |
| P8_0–P8_7 | CAN0/CAN1 transceiver / reset / clock | CAN0IN/CAN0OUT, CAN1IN/CAN1OUT, RESET, XCIN/XCOUT, NMI, INT0–INT2 |
| P9_0–P9_7 | UART4 / CAN1 / analog extension | TXD4/RXD4/CLK4 for CAN1, ADTRG trigger, ANEX0/ANEX1 analog extension pins |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0B Controllers | Two independent ISO 11898-1-compliant CAN modules with 32 total mailboxes enable concurrent vehicle network communication without host CPU overhead |
| Integrated Intelligent I/O | 16-bit input capture (16 channels) and output compare (19 channels) provide hardware-accelerated timing control for motor phase alignment and PWM dead-time management |
| Multi-Source DMA Transfer | DMAC with 51 request sources and DMAC II triggered by any peripheral interrupt enables zero-CPU-overhead data movement between peripherals and memory |
| Flexible Clock Architecture | Four independent clock sources (main/sub/PLL/on-chip oscillator) with frequency division (÷2 to ÷24) and oscillation stop detection ensure robust timing under variable load conditions |
| Industrial Temperature Range | Rated for –40°C to +85°C operation with guaranteed performance across full voltage range (3.0–5.5 V), suitable for under-hood and factory-floor environments |
Applications
| Automotive Audio Head Unit | Industrial PLC Communication Module |
|---|---|
Use Scenario: Central audio processor managing Bluetooth streaming, USB playback, and amplifier control in a car infotainment system. IC Role / Device Role / Timing Role: Main MCU executing real-time audio decoding, CAN bus diagnostics, and I²C-based display/touch controller interface. Use Value: Dual CAN modules handle vehicle network diagnostics and audio source arbitration; 26-channel A/D monitors analog sensor inputs (temperature, voltage) without external ADC. | Use Scenario: Fieldbus gateway connecting Modbus RTU devices to EtherCAT backplane in programmable logic controller rack. IC Role / Device Role / Timing Role: Protocol translation engine with UART-to-CAN bridging, deterministic timer-driven polling, and watchdog-secured firmware updates. Use Value: Nine UART channels support simultaneous RS-485 (Modbus), RS-232 (debug), and CAN FD-capable physical layers; 50 MHz CPU ensures sub-millisecond response to fieldbus events. |
| Office Equipment Motor Control | Factory Automation I/O Terminal |
Use Scenario: Precision stepper/servo motor driver in high-speed document scanner or multifunction printer. IC Role / Device Role / Timing Role: Motion controller generating synchronized PWM waveforms, capturing encoder feedback, and managing power stage sequencing. Use Value: Three-phase motor control timer (using TA1–TA4, TB2) with 8-bit dead-time programmability eliminates external gate-driver logic; intelligent I/O handles quadrature encoder inputs directly. | Use Scenario: Distributed digital I/O module collecting sensor data and driving solenoids/relays in packaging machinery. IC Role / Device Role / Timing Role: Real-time I/O concentrator with timestamped event capture, cyclic redundancy checking (CRC-CCITT), and CAN-based status reporting. Use Value: CRC calculator offloads checksum computation from CPU; 120 CMOS I/O ports (32 5 V tolerant) interface directly with industrial sensors and actuators without level-shifting components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F64185DFD#U0 | 144-pin LQFP package; adds 8 additional A/D channels (34 vs. 26), 5 extra I/O ports (P11–P15), and 5 more intelligent I/O outputs (24 vs. 19) | Suitable for designs requiring higher I/O density or expanded analog acquisition without board redesign | Select when PCB layout accommodates larger footprint and additional peripherals are needed |
| R5F64186DFB#U0 | Same 100-pin package but with 512 KB flash + 8 KB data flash and identical RAM (40 KB); otherwise functionally identical | Preferred for firmware-intensive applications needing larger code storage or field-upgradable feature sets | Choose when application firmware exceeds 384 KB or requires future feature expansion headroom |
Compared with R5F64185DFB#U0, R5F64185DFD#U0 offers greater peripheral integration in a larger package, while R5F64186DFB#U0 provides increased flash capacity without changing pinout or thermal profile - both preserve identical CAN, UART, and timer functionality for drop-in software compatibility.
Availability
R5F64185DFB#U0 is available at Aetrix Electronics and suitable for automotive audio systems, industrial PLC communication modules, office equipment motor control, and factory automation I/O terminals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F64185DFB#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 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, power-constrained environments such as automotive infotainment and industrial motion systems.
FAQ
What is the maximum operating frequency of the R5F64185DFB#U0?
The R5F64185DFB#U0 is a normal-speed variant rated for 50 MHz operation at VCC = 3.0 to 5.5 V. Its CPU core achieves a minimum instruction execution time of 20 ns at this frequency, delivering deterministic real-time performance for time-critical control loops in automotive and industrial applications. The same silicon supports 64 MHz operation in high-speed variants (e.g., R5F64185HDFB#U0), but R5F64185DFB#U0 is factory-configured for 50 MHz.
Does the R5F64185DFB#U0 include an integrated CAN controller?
Yes, the R5F64185DFB#U0 integrates two fully compliant ISO 11898-1 CAN 2.0B controllers with 32 total message mailboxes. These support standard and extended frame formats, automatic retransmission, and error confinement - enabling direct connection to automotive and industrial CAN networks without external transceivers beyond physical layer drivers. CAN0 and CAN1 share dedicated pins (P8_0–P8_3, P9_4–P9_7) with configurable pin multiplexing.
How many analog-to-digital converter channels does the R5F64185DFB#U0 support?
The R5F64185DFB#U0 features a 10-bit successive-approximation A/D converter with 26 input channels. These are distributed across P0 (8 channels), P10 (8 channels), and P15 (8 channels - though P15 is unavailable in the 100-pin package, limiting usable channels to 26). Sample-and-hold circuitry ensures accurate conversion during dynamic signal acquisition, critical for motor current sensing and environmental monitoring in industrial applications.
What package type and dimensions does the R5F64185DFB#U0 use?
The R5F64185DFB#U0 uses a 100-pin plastic LQFP package designated PLQP0100KB-A, measuring 14 mm × 14 mm with 0.5 mm lead pitch. This RoHS-compliant package supports surface-mount assembly and provides mechanical stability for vibration-prone environments like automotive and factory automation. Pin 1 location follows standard LQFP index marking; thermal pad presence is not specified in the official datasheet.
Is the R5F64185DFB#U0 supported by Renesas' debugging and programming tools?
Yes, the R5F64185DFB#U0 supports on-chip debug via Renesas E1/E20 emulators and on-board flash programming through its built-in debug interface. It is compatible with CS+ (formerly High-performance Embedded Workshop) IDE and the Renesas Flash Programmer toolchain. Debug access uses dedicated pins (RESET, XIN/XOUT, XCIN/XCOUT) and requires no external JTAG adapter - enabling full breakpoint, trace, and memory inspection capabilities during development and field firmware updates.
R5F64185DFB#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- M16C/R32C/100/118
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 40K 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:
R5F64185DFB#U0 FAQ
1.How can I place an order for R5F64185DFB#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F64185DFB#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 R5F64185DFB#U0 reliable?
The price and inventory of R5F64185DFB#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F64185DFB#U0 is usually 5 days.
3.What payment methods are accepted for R5F64185DFB#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F64185DFB#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F64185DFB#U0?
R5F64185DFB#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F64185DFB#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 R5F64185DFB#U0?
For technical support, including R5F64185DFB#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F64185DFB#U0 requirements.
6.How does Aetrix verify that R5F64185DFB#U0 is sourced from the original manufacturer or authorized distributors?
All R5F64185DFB#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 R5F64185DFB#U0 meets industry standards.
7.What is the process for return or replacement of R5F64185DFB#U0?
All R5F64185DFB#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F64185DFB#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 R5F64185DFB#U0 part is unused and in its original packaging.
Return procedure for R5F64185DFB#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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