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Renesas R5F64185DFB#20
- Part No.:
- R5F64185DFB#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F64185DFB#20.pdf
- Description:
- 32BIT MCU R32C/100X
- Quantity:
- Payment:
- Shipping:
Inventory:1,554
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Product details
Overview
R5F64185DFB#20 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#20 datasheet, R5F64185DFB#20 pinout, R5F64185DFB#20 application, or R5F64185DFB#20 equivalent, this page delivers verified package mapping (PLQP0100KB-A), confirmed 100-pin LQFP pin functions, validated CAN/I²C/UART peripheral integration, and two field-tested alternative parts for migration planning.
Technical Context
The R5F64185DFB#20 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 32-bit barrel shifter. Its memory architecture supports up to 4 GB address space with external bus expansion (8/16-bit data width, 4 chip selects).
Peripheral subsystems include 9 UART channels (with I²C-bus mode on UART0–UART6), one multi-master I²C interface, two ISO 11898-1-compliant CAN modules, 5×16-bit Timer A units with encoder input support, and 6×16-bit Timer B units with pulse-width measurement capability - all coordinated via 261 interrupt vectors and 7 priority levels.
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 control loops with 20 ns instruction resolution |
| Memory | 384 KB flash + 8 KB data flash + 40 KB RAM - sufficient for complex automotive audio firmware with OTA update partitioning |
| A/D Converter | 10-bit resolution × 26 channels - supports simultaneous sampling of analog sensors in motor control feedback paths |
| CAN Interface | 2 channels, ISO 11898-1 compliant, 32 mailboxes - enables dual-bus vehicle network communication without external controllers |
| Package | 100-pin plastic LQFP (PLQP0100KB-A) - standard surface-mount footprint compatible with industrial reflow profiles |
| Operating Temperature | -40°C to +85°C (D version) - qualified for under-hood automotive and factory-floor industrial environments |
| Power Consumption | 35 mA at 5.0 V / 50 MHz; 8 µA in wait mode - meets low-power requirements for always-on vehicle subsystems |
Pinout & Package
100-pin plastic molded LQFP (PLQP0100KB-A), 0.5 mm pitch, 14 mm × 14 mm body size, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / digital I/O port | 8-bit ADC input group AN0_0–AN0_7; configurable as general-purpose CMOS I/O with optional pull-up |
| P10_0–P10_7 | Analog input / key interrupt | 8-channel 10-bit A/D inputs AN_0–AN_7 with KI0–KI3 key wake-up capability |
| P6_0–P6_7 | UART0–UART1 / clock / control | Primary serial interface pins: TXD0/RXD0, TXD1/RXD1, CLK0/CLK1, CTS0/RTS0/SS0 |
| P7_0–P7_7 | UART2–UART3 / CAN0 / timer | TXD2/RXD2, TXD3/RXD3, CAN0OUT/CAN0IN, TA0OUT–TA3OUT, TA0IN–TA3IN |
| P8_0–P8_7 | UART5–UART8 / CAN1 / NMI / reset | TXD5/RXD5 through TXD8/RXD8, CAN1OUT/CAN1IN, NMI, RESET, XCIN/XCOUT, INT0–INT2 |
| P9_0–P9_7 | CAN / UART4 / trigger / debug | CAN0OUT/CAN1OUT, CAN0IN/CAN1IN, RXD4/TXD4, ADTRG (A/D trigger), MSCL (master clock) |
| VCC / VSS / AVCC / AVSS | Power supply / ground | Dual power domains: digital (VCC/VSS) and analog (AVCC/AVSS) with separate reference (VREF) |
| XIN / XOUT | External crystal oscillator | Supports main system clock generation at 1–20 MHz; paired with on-chip PLL for 50 MHz core frequency |
Key Features
| Feature | Design Value |
|---|---|
| IEEE-754 FPU | Single-precision floating-point math acceleration for real-time audio signal processing and motor vector control |
| Dual CAN 2.0B | Two independent ISO 11898-1-compliant controllers with 32 total mailboxes - eliminates need for external CAN protocol handlers |
| 9-channel UART | Configurable as UART, I²C-bus, or special mode 2 interfaces - consolidates serial communication across multiple subsystems |
| 26-channel 10-bit A/D | Integrated sample-and-hold with programmable trigger sources - enables synchronized acquisition of motor phase currents and temperature sensors |
| Intelligent I/O | 16-bit input capture ×16 and output compare ×19 - supports precise PWM generation and encoder position tracking without CPU overhead |
| On-chip debug | Fully integrated debug interface supporting flash programming and real-time trace - reduces development cycle time for safety-critical firmware |
Applications
| Automotive Audio Head Unit | Industrial PLC I/O Module |
|---|---|
Use Scenario: Central controller in vehicle infotainment system managing audio decoding, display interface, and vehicle bus communication. IC Role / Device Role / Timing Role: Main MCU executing real-time DSP tasks, driving LCD/TFT displays via parallel bus, and handling CAN 2.0B messaging with instrument cluster and amplifier modules. Use Value: Dual CAN channels enable concurrent communication on powertrain and comfort buses; 384 KB flash accommodates multi-format codec libraries and UI assets. | Use Scenario: Modular I/O controller in programmable logic controller rack handling analog sensor inputs and digital actuator outputs. IC Role / Device Role / Timing Role: Deterministic real-time processor acquiring 26-channel analog inputs, executing ladder logic, and driving isolated digital outputs via parallel port expansion. Use Value: 10-bit A/D with sample-and-hold ensures accurate temperature/pressure readings; 100-pin LQFP provides ample GPIO for modular backplane interfacing. |
| Office Equipment Motor Control | Factory Automation Gateway |
Use Scenario: Motion controller in high-speed laser printer managing stepper/servo motors, paper path sensors, and toner subsystems. IC Role / Device Role / Timing Role: Real-time motor sequencer using three-phase motor control timer (A1/A2/A4/B2), dead-time PWM generation, and encoder feedback via intelligent I/O. Use Value: Integrated three-phase motor timer with 8-bit programmable dead time eliminates external gate drivers; 50 MHz operation ensures sub-microsecond timing resolution. | Use Scenario: Protocol translator bridging legacy RS-485 fieldbus devices to modern Ethernet-based SCADA networks. IC Role / Device Role / Timing Role: Dual-interface gateway processor running Modbus RTU over UART and TCP/IP stack on external MAC, coordinating data routing and watchdog supervision. Use Value: Nine UART channels support multiple concurrent fieldbus ports; 40 KB RAM buffers protocol translation tables and packet queues without external SRAM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F64185DFD#20 | 144-pin LQFP (PLQP0144KA-A); 34-channel A/D; 32 additional I/O pins; supports external bus expansion | Suitable for designs requiring higher I/O count, external memory interface, or more analog inputs (e.g., advanced HMI or data logger) | Select when board layout allows larger package and system requires >26 A/D channels or external SDRAM/NOR flash |
| R5F64186DFB#20 | Same 100-pin package; 512 KB flash + 8 KB data flash; identical RAM and peripheral set | Better suited for feature-rich firmware with larger code base (e.g., embedded Linux companion or secure boot implementation) | Choose when firmware size exceeds 384 KB but I/O and analog channel count remain unchanged |
Compared with R5F64185DFB#20, R5F64185DFD#20 offers expanded I/O and memory addressing at the cost of larger PCB area, while R5F64186DFB#20 provides 128 KB more flash without altering pinout or analog capability - enabling seamless firmware scalability within the same footprint.
Availability
R5F64185DFB#20 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 R5F64185DFB#20 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 applications.
The R32C/118 Group belongs to the high-end R32C/100 Series MCU line, designed specifically for deterministic real-time control in automotive infotainment, industrial automation, and precision motor drive systems where CAN reliability and computational throughput are critical.
FAQ
What is the maximum operating frequency of the R5F64185DFB#20?
The R5F64185DFB#20 is a normal-speed variant rated for 50 MHz operation at VCC = 3.0 to 5.5 V. Its R32C/100 Series CPU core achieves a minimum instruction execution time of 20 ns at this frequency, delivering deterministic real-time performance for automotive and industrial control tasks. The part does not support the 64 MHz high-speed mode found in H-suffix variants like R5F64185HDFB#20.
Does the R5F64185DFB#20 include CAN interface functionality?
Yes, the R5F64185DFB#20 integrates two fully compliant ISO 11898-1 CAN 2.0B modules with 32 total message mailboxes. These controllers support bit rates up to 1 Mbps, automatic retransmission, error confinement, and loopback self-test modes - enabling robust vehicle network communication without external CAN transceivers beyond physical layer drivers.
What package type and pin count does the R5F64185DFB#20 use?
The R5F64185DFB#20 uses a 100-pin plastic LQFP package designated PLQP0100KB-A (also referenced as 100P6Q-A). This RoHS-compliant package has 0.5 mm lead pitch, 14 mm × 14 mm body dimensions, and is optimized for automated SMT assembly in industrial and automotive manufacturing environments.
How much flash and RAM memory does the R5F64185DFB#20 provide?
The R5F64185DFB#20 contains 384 KB of on-chip flash memory for program storage and 8 KB of dedicated data flash for parameter retention, plus 40 KB of general-purpose RAM. This memory configuration supports complex firmware stacks including real-time OS kernels, audio codecs, and CAN protocol stacks while maintaining sufficient margin for field updates and calibration data storage.
Is the R5F64185DFB#20 qualified for automotive temperature ranges?
Yes, the R5F64185DFB#20 is the D-version part rated for -40°C to +85°C operating temperature, making it suitable for under-hood and cabin-mounted automotive applications including audio head units and body control modules. Its qualification aligns with AEC-Q100 stress test requirements for Grade 3 components, ensuring reliability in harsh vehicular environments.
R5F64185DFB#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- M16C/R32C/100/118
- 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:
- 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#20 FAQ
1.How can I place an order for R5F64185DFB#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F64185DFB#20 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#20 reliable?
The price and inventory of R5F64185DFB#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F64185DFB#20 is usually 5 days.
3.What payment methods are accepted for R5F64185DFB#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F64185DFB#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F64185DFB#20?
R5F64185DFB#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F64185DFB#20 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#20?
For technical support, including R5F64185DFB#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F64185DFB#20 requirements.
6.How does Aetrix verify that R5F64185DFB#20 is sourced from the original manufacturer or authorized distributors?
All R5F64185DFB#20 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#20 meets industry standards.
7.What is the process for return or replacement of R5F64185DFB#20?
All R5F64185DFB#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F64185DFB#20, 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#20 part is unused and in its original packaging.
Return procedure for R5F64185DFB#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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