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Renesas R5F64166DFD#U0
- Part No.:
- R5F64166DFD#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F64166DFD#U0.pdf
- Description:
- MCU 3.0/5.5V 512K/40K -40TO+85C
- Quantity:
- Payment:
- Shipping:
Inventory:4,455
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Product details
Overview
R5F64166DFD#U0 from Renesas Electronics is a 512 KB flash, 40 KB RAM, 144-pin LQFP high-end 32-bit CISC microcontroller in the R32C/116 Group. It integrates IEEE-754 single-precision FPU, 9-channel UART/serial interface (including I²C-bus), 34-channel 10-bit ADC, and three-phase motor control timer - enabling real-time motor control and industrial HMI in automotive audio and office equipment.
For engineers reviewing the R5F64166DFD#U0 datasheet, R5F64166DFD#U0 pinout, R5F64166DFD#U0 application, or R5F64166DFD#U0 equivalent, key selection criteria include its 64 MHz CPU speed, 144-pin PLQP0144KA-A package with 32 × 5 V-tolerant I/Os, 40 Kbytes RAM, and support for external bus expansion up to 64 Mbytes user-accessible space.
Technical Context
The R5F64166DFD#U0 implements the R32C/100 Series CPU core with 108 basic instructions, 32-bit barrel shifter, and multiplier-accumulate unit. Its clock system includes four independent circuits (main clock, sub clock, PLL, on-chip oscillator) with oscillation stop detection and programmable frequency division (÷2 to ÷24).
It supports memory expansion mode with 4 Gbyte address space (64 Mbytes user-accessible), separate/multiplexed bus formats, and 8/16/32-bit data bus width selection. Interrupt handling features 261 vectors, 9 external interrupt inputs (INT×9), 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 × 32-bit MAC unit |
| Max Operating Frequency | 64 MHz - enables 15.625 ns minimum instruction execution time for deterministic real-time response |
| Memory | 512 KB flash + 8 KB data flash + 40 KB RAM - supports firmware updates and data logging without external storage |
| Analog Peripherals | 10-bit ADC × 34 channels with sample-and-hold; 8-bit DAC × 2 - suitable for closed-loop sensor feedback and analog output control |
| Serial Interfaces | 9 UART channels supporting I²C-bus (UART0–UART6), special mode 2, and optional IEBus - enables multi-protocol peripheral connectivity |
| Timers | 16-bit Timer A × 5, Timer B × 6, and dedicated three-phase motor control timer with 8-bit dead-time programming - meets BLDC/PMSM commutation timing requirements |
| Package | 144-pin plastic LQFP (PLQP0144KA-A) with 32 × 5 V-tolerant CMOS I/O ports - compatible with industrial-level signal interfacing |
| Operating Temp | -40°C to +85°C (D version) - qualified for under-hood automotive and factory-floor embedded applications |
Pinout & Package
144-pin plastic molded LQFP (PLQP0144KA-A), 20 mm × 20 mm body, 0.5 mm pitch, exposed pad not specified. Pinout validated per Renesas R01DS0063EJ0120 datasheet Figures 1.3 and Tables 1.7–1.10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P7_1 / Pin 36 | TA0IN / TB5IN / RXD2 / SCL2 / MSCL / IIO1_7 | Primary timer input and I²C master clock line - enables encoder position capture and multi-master I²C arbitration |
| P7_0 / Pin 37 | TA0OUT / TXD2 / SDA2 / MSDA / IIO1_6 | Timer output and I²C master data line - drives synchronous PWM and bidirectional I²C data communication |
| P10_0–P10_7 / Pins 141–133 | AN_0–AN_7 / KI0–KI3 | 8-channel analog input with key interrupt capability - supports touch-key HMI and multi-sensor analog acquisition |
| P0_0–P0_7 / Pins 122–115 | AN0_0–AN0_7 / D0–D7 | 8-channel analog input with parallel data bus mapping - allows simultaneous ADC sampling and memory-mapped data transfer |
| P15_0–P15_7 / Pins 131–123 | IIO0_0–IIO0_7 / AN15_0–AN15_7 | Dedicated intelligent I/O with 16-bit input capture and 16-bit output compare - implements high-resolution waveform generation and time-stamped event capture |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug & flash programming | Enables in-system firmware update and real-time debugging without external emulator hardware |
| 4-channel DMAC with chain transfer | Offloads CPU during high-bandwidth peripheral transfers (e.g., ADC → RAM → UART), preserving deterministic timing |
| CRC-CCITT calculator (X¹⁶+X¹²+X⁵+1) | Hardware-accelerated checksum for reliable firmware OTA updates and communication frame integrity |
| Three-phase motor control timer | Integrated dead-time insertion and complementary PWM outputs reduce external gate-driver complexity for inverter designs |
| External bus interface | Supports wait-state insertion and 4 chip-select outputs - enables direct connection to NOR flash, SRAM, or FPGA peripherals |
| Low-power modes (wait/stop) | 8 µA standby current at 3.3 V with 32.768 kHz sub-clock active - extends battery life in portable industrial tools |
Applications
| Industrial Motor Control | Automotive Audio Head Unit |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating gated PWM via three-phase timer, and sampling current/voltage via 34-channel ADC. Use Value: Integrated dead-time timer and 10-bit ADC eliminate external comparators and reduce BOM cost by ≥3 components per axis. | Use Scenario: Central audio processor managing DSP, amplifier control, and CAN/I²C peripheral coordination in car infotainment systems. IC Role / Device Role / Timing Role: System host MCU handling USB audio streaming, amplifier thermal monitoring, and display interface timing via intelligent I/O. Use Value: 9 serial channels support concurrent I²C (display), UART (DSP), and optional IEBus (legacy tuner), avoiding multiplexer logic. |
| Office Equipment HMI | Factory Automation I/O Module |
Use Scenario: Touch-enabled control panel for multifunction printers with real-time status feedback and button debounce. IC Role / Device Role / Timing Role: HMI controller scanning capacitive/tactile keys via KI0–KI3 interrupts and driving segmented LCD via intelligent I/O waveform generation. Use Value: Hardware key-interrupt debouncing and 16-bit output compare eliminate software polling and external timer ICs. | Use Scenario: Distributed I/O node collecting analog sensor data (temperature, pressure) and controlling solenoid valves over RS-485. IC Role / Device Role / Timing Role: Fieldbus gateway MCU performing ADC oversampling, CRC-protected Modbus RTU framing, and UART-to-RS485 level translation. Use Value: On-chip CRC calculator and 4-channel DMAC enable zero-CPU-overhead protocol framing and DMA-driven UART transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F64166NFD#U0 | Same silicon, -20°C to +85°C operating range (N version) vs. -40°C to +85°C (D version) | Not rated for extended industrial ambient or automotive under-hood environments | Select R5F64166NFD#U0 only for commercial indoor applications with stable thermal profiles. |
| R5F64167DFD#U0 | 640 KB flash + 48 KB RAM vs. 512 KB + 40 KB; identical package and peripheral set | Requires no PCB change but enables larger firmware images and deeper data buffers for edge analytics | Choose R5F64167DFD#U0 when firmware size exceeds 480 KB or real-time data logging buffer >32 KB is required. |
Compared with R5F64166NFD#U0, the R5F64166DFD#U0 provides extended temperature qualification critical for automotive and factory-floor deployment; compared with R5F64167DFD#U0, it offers optimal cost/performance balance for applications with moderate code footprint and RAM usage.
Availability
R5F64166DFD#U0 is available at Aetrix Electronics and suitable for industrial motor control, automotive audio head units, office equipment HMI, and factory automation I/O modules requiring stable component supply across long production lifecycles.
Supply support for R5F64166DFD#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise markets.
The R32C/116 Group belongs to the high-end R32C/100 Series, designed for demanding real-time embedded applications requiring high code efficiency, rich analog/motor control peripherals, and robust industrial temperature operation.
FAQ
What is the maximum CPU clock frequency supported by the R5F64166DFD#U0?
The R5F64166DFD#U0 supports a maximum CPU clock frequency of 64 MHz, achieving a minimum instruction execution time of 15.625 ns. This high-speed operation is enabled by its integrated PLL and is specified for the high-speed version of the R32C/116 Group. The R5F64166DFD#U0 operates within this specification across its full -40°C to +85°C temperature range.
Does the R5F64166DFD#U0 include hardware debug capabilities?
Yes, the R5F64166DFD#U0 includes on-chip debug functionality supporting real-time in-circuit debugging and flash programming without external emulators. This capability is integrated into the R32C/100 Series CPU core and is accessible via standard debug interfaces, enabling efficient firmware development and field updates for the R5F64166DFD#U0.
How many analog-to-digital converter channels does the R5F64166DFD#U0 provide?
The R5F64166DFD#U0 provides 34 channels of 10-bit analog-to-digital conversion with integrated sample-and-hold circuitry. This capability is specific to the 144-pin package variant and is documented in Table 1.1 of the R01DS0063EJ0120 datasheet. All 34 channels are accessible on the R5F64166DFD#U0.
Is the R5F64166DFD#U0 pin-compatible with other devices in the R32C/116 Group?
Yes, the R5F64166DFD#U0 shares identical pinout and package (PLQP0144KA-A) with all other 144-pin R32C/116 Group variants including R5F64165DFD#U0, R5F64167DFD#U0, and R5F64168DFD#U0. This allows direct substitution within the same footprint when memory or peripheral requirements change, provided firmware is updated to match the new device's configuration.
What serial communication interfaces are integrated into the R5F64166DFD#U0?
The R5F64166DFD#U0 integrates nine asynchronous/synchronous serial interface channels (UART0–UART8), supporting I²C-bus operation on UART0–UART6, Special Mode 2, and optional IEBus. It also includes one dedicated multi-master I²C-bus interface. These interfaces are confirmed in Section 1.1.2 and Table 1.2 of the R01DS0063EJ0120 datasheet for the R5F64166DFD#U0.
R5F64166DFD#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- M16C/R32C/100/116
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- R32C/100
- Core Size:
- 16/32-Bit
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, IEBus, UART/USART
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 120
- Program Memory Size:
- 512KB (512K 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 34x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F64166DFD#U0 FAQ
1.How can I place an order for R5F64166DFD#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F64166DFD#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 R5F64166DFD#U0 reliable?
The price and inventory of R5F64166DFD#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F64166DFD#U0 is usually 5 days.
3.What payment methods are accepted for R5F64166DFD#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F64166DFD#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F64166DFD#U0?
R5F64166DFD#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F64166DFD#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 R5F64166DFD#U0?
For technical support, including R5F64166DFD#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F64166DFD#U0 requirements.
6.How does Aetrix verify that R5F64166DFD#U0 is sourced from the original manufacturer or authorized distributors?
All R5F64166DFD#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 R5F64166DFD#U0 meets industry standards.
7.What is the process for return or replacement of R5F64166DFD#U0?
All R5F64166DFD#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F64166DFD#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 R5F64166DFD#U0 part is unused and in its original packaging.
Return procedure for R5F64166DFD#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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