Renesas R5F64189HDFB#2A
- Part No.:
- R5F64189HDFB#2A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F64189HDFB#2A.pdf
- Description:
- 32BIT MCU R32C/118 1M LFQFP100 -
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F64189HDFB#2A from Renesas Electronics is a high-speed 64 MHz R32C/118 Group 32-bit CISC microcontroller in a 100-pin LQFP package, featuring 1 Mbyte flash memory, 63 Kbytes RAM, dual CAN 2.0B modules (32 mailboxes), nine UART channels with I²C-bus capability, and 26-channel 10-bit A/D conversion. It serves as a system controller in automotive audio head units requiring real-time motor control, multi-protocol serial communication, and robust EMI immunity.
For engineers reviewing the R5F64189HDFB#2A datasheet, R5F64189HDFB#2A pinout, R5F64189HDFB#2A application, or R5F64189HDFB#2A equivalent, this page delivers verified specifications, validated 100-pin LQFP terminal mapping, confirmed CAN/I²C/UART peripheral integration, and direct alternative part comparisons for industrial and automotive embedded designs.
Technical Context
The R5F64189HDFB#2A implements the R32C/100 Series CPU core with IEEE-754 single-precision FPU, 32-bit barrel shifter, and multiplier-accumulate unit-enabling deterministic real-time control in motor drive firmware. Its dual CAN modules comply fully with ISO 11898-1 and support mailbox-based message filtering and automatic retransmission.
It integrates a 4-Gbyte address space with external bus expansion (8/16-bit data width, 4 chip selects), DMAC II with chain transfer for sensor data streaming, and intelligent I/O with 16-bit input capture/output compare for encoder timing and PWM waveform generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R32C/100 Series 32-bit CISC with 108 basic instructions and 15.625 ns min. instruction time at 64 MHz |
| Memory | 1 Mbyte flash + 8 Kbytes data flash; 63 Kbytes RAM - supports in-system programming and secure code protection |
| CAN Interface | 2 independent CAN 2.0B modules with 32 configurable mailboxes each - enables full vehicle network node functionality |
| A/D Converter | 10-bit resolution × 26 channels with sample-and-hold - sufficient for multi-sensor analog monitoring in audio amplifiers |
| Package | 100-pin plastic LQFP (PLQP0100KB-A) - industry-standard footprint compatible with automated SMT assembly |
| Operating Temp | -40°C to +85°C (D version) - qualified for under-dash automotive environments |
| Supply Voltage | VCC = 3.0 V to 5.5 V - supports direct connection to 5 V automotive power rails without level-shifting |
Pinout & Package
100-pin plastic molded LQFP (PLQP0100KB-A) with 0.5 mm pitch, 14 mm × 14 mm body size, and exposed thermal pad. Pin 1 index located at top-left corner per JEDEC MO-140 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P8_2 | CAN0OUT / CAN1OUT / INT0 | Dual-CAN transmit output with interrupt trigger - drives CAN bus physical layer transceivers directly |
| P8_3 | CAN0IN / CAN0WU / CAN1IN / CAN1WU / INT1 | Dual-CAN receive and wake-up input with interrupt - supports low-power bus monitoring and remote wakeup |
| P9_5 | CLK4 / CAN1IN / CAN1WU | Secondary CAN1 receive/wake-up with dedicated clock input - enables independent timing for redundant CAN networks |
| P9_6 | TXD4 / SDA4 / SRXD4 / CAN1OUT | Multiplexed UART4/I²C/CAN1 transmit - allows shared pin usage across protocols to reduce PCB routing complexity |
| P10_0–P10_7 | AN_0–AN_7 / KI0–KI3 | 8-channel analog input with 4-key interrupt inputs - supports front-panel button scanning and voltage-sense feedback |
| P0_0–P0_7 | AN0_0–AN0_7 / D0–D7 | 8-channel analog input with parallel data bus capability - enables legacy ADC interface or digital I/O expansion |
| P5_0–P5_2 | WR0 / WR1 / RD | External bus write/read strobes - interfaces directly with external SRAM, EPROM, or display controllers |
| P6_0–P6_7 | CTS0–CTS1 / RTS0–RTS1 / SS0–SS1 / TXD0–TXD1 / RXD0–RXD1 | Hardware flow control and dual UART channel I/O - eliminates software handshaking overhead in high-throughput serial links |
Key Features
| Feature | Design Value |
|---|---|
| IEEE-754 Single-Precision FPU | Enables real-time floating-point math for audio equalization and motor vector control without external coprocessor |
| Three-Phase Motor Control Timer | Integrated dead-time generator and complementary PWM outputs - reduces gate-driver component count in BLDC inverters |
| DMAC II with Chain Transfer | Automatically sequences transfers between A/D buffers and CAN mailboxes - eliminates CPU intervention during sensor-to-network data flow |
| 5 V-Tolerant I/O Ports | 32 pins tolerant to 5 V logic levels - simplifies interface with legacy 5 V peripherals without level shifters |
| On-Chip Debug & Flash Programming | Full JTAG debugging and in-application flash updates - enables field firmware upgrades and production line programming |
Applications
| Car Audio Head Unit | Industrial PLC I/O Module |
|---|---|
Use Scenario: Central controller in OEM automotive infotainment systems managing audio decoding, amplifier control, and vehicle bus communication. IC Role / Device Role / Timing Role: Main system MCU executing real-time DSP tasks, driving 26-channel A/D for microphone/sensor inputs, and managing dual CAN for vehicle network integration. Use Value: Integrated CAN 2.0B and 64 MHz processing enable simultaneous audio playback, touch UI response, and diagnostic message handling without latency. | Use Scenario: Modular I/O controller in factory automation systems acquiring analog sensor data and issuing digital actuator commands over industrial fieldbus. IC Role / Device Role / Timing Role: Deterministic real-time controller using timer A/B for precise PWM generation and intelligent I/O for encoder position capture. Use Value: 26-channel 10-bit A/D with sample-and-hold and DMAC II offload allow continuous 1 kHz sampling across all channels while maintaining CAN messaging throughput. |
| Printer Engine Controller | Office Equipment Power Management |
Use Scenario: Motion control subsystem in laser printers coordinating stepper motors, thermal fuser, and paper feed mechanisms. IC Role / Device Role / Timing Role: Dedicated motor controller using three-phase timer and 16-bit PWM outputs to drive brushless DC motors with programmable dead time. Use Value: Hardware-accelerated motor control timers eliminate software timing jitter, ensuring consistent print speed and registration accuracy. | Use Scenario: Power supervisor in multifunction copiers regulating DC-DC converters, monitoring rail voltages, and responding to thermal faults. IC Role / Device Role / Timing Role: System monitor using low-voltage detection interrupt, watchdog timer, and 10-bit A/D to track 8 power supply rails and temperature sensors. Use Value: On-chip voltage detector with interrupt capability enables sub-10 µs fault response, preventing damage during brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F64189HDFD#2A | Same 100-pin LQFP package and 1 Mbyte flash, but rated for -40°C to +85°C (D version) vs. R5F64189HDFB#2A's -40°C to +85°C (D version) - identical spec sheet revision and electrical characteristics | No functional difference; both intended for automotive/industrial use; FD suffix denotes same temperature grade as FB in current Renesas documentation | Select R5F64189HDFD#2A only if distributor stock alignment requires FD-coded reels; electrically and mechanically identical to R5F64189HDFB#2A |
| R5F64188HDFB#2A | 768 Kbyte flash (vs. 1 Mbyte), 63 Kbyte RAM, same 100-pin LQFP, identical peripherals and clock architecture | Suitable where firmware image size is < 768 KB and no future feature expansion is planned; retains full CAN/A/D/UART compatibility | Choose R5F64188HDFB#2A to reduce BOM cost when application memory footprint fits within 768 KB and long-term scalability is not required |
Compared with R5F64189HDFB#2A, R5F64189HDFD#2A offers identical functionality and qualification, while R5F64188HDFB#2A provides a memory-down variant with full peripheral compatibility-enabling design reuse across product tiers without layout changes.
Availability
R5F64189HDFB#2A is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLCs, printer engine control, and office equipment power management requiring stable component supply across extended lifecycle programs.
Supply support for R5F64189HDFB#2A 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.
The R32C/118 Group belongs to the high-end R32C/100 Series MCU line, designed specifically for real-time embedded applications demanding high code efficiency, multi-protocol connectivity (CAN/I²C/UART), and deterministic motor control in harsh environments.
FAQ
What is the maximum operating frequency of the R5F64189HDFB#2A?
The R5F64189HDFB#2A operates at a maximum CPU frequency of 64 MHz, achieved via its on-chip PLL frequency synthesizer with main clock input. This yields a minimum instruction execution time of 15.625 ns, enabling hard real-time response in motor control and audio processing loops. The device maintains full peripheral functionality-including dual CAN and nine UARTs-at this speed.
Does the R5F64189HDFB#2A support CAN FD or only classical CAN 2.0B?
The R5F64189HDFB#2A supports only classical CAN 2.0B protocol compliant with ISO 11898-1, with two independent modules and 32 configurable mailboxes per module. It does not implement CAN FD features such as flexible data-rate or extended payload length. For CAN FD requirements, Renesas' RA6T2 or RH850/F1L families are recommended alternatives.
How many A/D converter channels does the R5F64189HDFB#2A have, and what is their resolution?
The R5F64189HDFB#2A integrates a 10-bit successive-approximation A/D converter with 26 input channels, as confirmed for the 100-pin LQFP package variant. Each channel includes sample-and-hold functionality, supporting simultaneous sampling across multiple sensors. This matches the specification in Table 1.4 of the R01DS0065EJ0120 datasheet for the 100-pin configuration.
Is the R5F64189HDFB#2A pin-compatible with other R32C/118 Group MCUs in the same package?
Yes, the R5F64189HDFB#2A is pin-compatible with all other R32C/118 Group devices in the 100-pin LQFP (PLQP0100KB-A) package, including R5F64185HDFB#2A through R5F64188HDFB#2A. All share identical pin assignments, electrical characteristics, and peripheral mappings-enabling hardware reuse across memory- and feature-scaled variants.
What debug interface does the R5F64189HDFB#2A support?
The R5F64189HDFB#2A supports on-chip debug via the standard JTAG interface (IEEE 1149.1), enabling full boundary-scan testing, real-time register inspection, and flash programming during development and production. It also supports on-board flash programming through the built-in bootloader, allowing firmware updates via UART or CAN without external programmers.
R5F64189HDFB#2A 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:
- 64MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IEBus, UART/USART
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 84
- Program Memory Size:
- 1MB (1M 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:
R5F64189HDFB#2A FAQ
1.How can I place an order for R5F64189HDFB#2A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F64189HDFB#2A 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 R5F64189HDFB#2A reliable?
The price and inventory of R5F64189HDFB#2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F64189HDFB#2A is usually 5 days.
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Once your R5F64189HDFB#2A 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 R5F64189HDFB#2A?
For technical support, including R5F64189HDFB#2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F64189HDFB#2A requirements.
6.How does Aetrix verify that R5F64189HDFB#2A is sourced from the original manufacturer or authorized distributors?
All R5F64189HDFB#2A 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 R5F64189HDFB#2A meets industry standards.
7.What is the process for return or replacement of R5F64189HDFB#2A?
All R5F64189HDFB#2A units undergo pre-shipment inspection (PSI). If there is an issue with R5F64189HDFB#2A, 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 R5F64189HDFB#2A part is unused and in its original packaging.
Return procedure for R5F64189HDFB#2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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