Renesas R5F21365CNFP#V0
- Part No.:
- R5F21365CNFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F21365CNFP#V0.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F21365CNFP#V0 from Renesas Electronics is a 16-bit R8C CPU core MCU with 24 KB program ROM, 2 KB data flash (4 × 1 KB blocks), and 2 KB RAM in a 64-pin LQFP (PLQP0064KB-A) package. It operates at up to 20 MHz (VCC = 2.7–5.5 V), integrates 12-channel 10-bit ADC, dual 8-bit DACs, LIN hardware module, and six independent timers including complementary PWM-capable Timer RD - deployed in motor control subsystems of home appliance mainboards.
For engineers reviewing the R5F21365CNFP#V0 datasheet, R5F21365CNFP#V0 pinout, R5F21365CNFP#V0 application, or R5F21365CNFP#V0 equivalent, key selection criteria include its background operation (BGO) data flash capability, −20°C to +85°C industrial temperature grade, integrated LIN transceiver timing support, and 64-pin LQFP footprint with 59 configurable CMOS I/O ports.
Technical Context
The R5F21365CNFP#V0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte address space, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash allocated at 03000h–03FFFh.
It features four clock sources: XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz), high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - enabling flexible power mode management across standard operating, wait, and stop modes with typical current as low as 2.0 µA in stop mode (VCC = 3.0 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC instruction |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) |
| Memory | 24 KB program ROM, 2 KB RAM, 4 × 1 KB data flash with BGO function |
| Analog Peripherals | 12-channel 10-bit ADC with sample-and-hold; dual 8-bit DAC outputs (DA0/DA1) |
| Timers | Timer RA/RB (8-bit), RC/RD/RF/RG (16-bit), RE (8-bit RTC); RD supports complementary PWM for 3-phase motor drive |
| Communication | UART0/1/2 (I²C-capable), SSU, LIN hardware module (using Timer RA + UART0), 39-source DTC |
| Power & Temp | 1.8–5.5 V supply; −20°C to +85°C ambient operating range (N version) |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-A), 10 mm × 10 mm, 0.5 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / DA output / timer I/O | AN0–AN7 inputs; DA0/DA1 outputs; TRCIOx for Timer RC capture/compare |
| P1_0–P1_3 | Key interrupt / analog input / timer I/O | KI0–KI3 key inputs; AN8–AN11; TRBO output for Timer RB |
| P2_0–P2_7 | Timer RD I/O / external trigger | TRDIOA0–TRDIOD1 for 6-pin complementary PWM; TRDCLK for external clock sync |
| P3_0, P3_2, P3_3–P3_7 | LIN/UART/I²C/SSU interface pins | TRAIO/TRGCLKA for LIN; RXD2/TXD2/SCL2/SDA2 for I²C; SSI/SSCK/SCS/SSO for SSU |
| XIN/XOUT | Main system clock oscillator interface | Supports ceramic resonator or crystal up to 20 MHz; enables high-speed execution mode |
| XCIN/XCOUT | Real-time clock oscillator interface | 32 kHz crystal connection for Timer RE real-time clock and low-power stop-mode timing |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU code execution - enabling seamless firmware updates without halting application logic |
| Hardware LIN Module | Dedicated LIN physical layer timing via Timer RA + UART0 eliminates need for external transceiver in cost-sensitive appliance networks |
| Complementary PWM on Timer RD | Simultaneous 6-pin output with dead-time insertion and synchronous reset - directly drives 3-phase inverter gate drivers in BLDC motor control |
| Voltage Detection Circuit | Configurable voltage detection levels (VDD monitor + VDET3) provide robust brown-out reset and system-level power supervision |
| Low-Power Stop Mode | 2.0 µA typical current draw (VCC = 3.0 V) with 32 kHz RTC active - extends battery life in always-on standby functions |
Applications
| Home Appliance Motor Control | Industrial Panel Controller |
|---|---|
Use Scenario: Variable-speed drive for washing machine drum motor using sensorless BLDC commutation. IC Role / Device Role / Timing Role: Primary motor controller executing FOC algorithm, generating complementary PWM via Timer RD, sampling current via 10-bit ADC, and managing LIN communication with user interface board. Use Value: Integrated 6-pin complementary PWM with synchronous reset reduces external gate driver count; BGO enables field-upgradable motor profiles without service interruption. | Use Scenario: Local HMI and I/O coordinator in HVAC control panel with temperature sensing and fan speed regulation. IC Role / Device Role / Timing Role: System host MCU handling 12-channel thermistor readings, driving dual 8-bit DACs for analog setpoint outputs, and managing UART-based Modbus RTU slave interface. Use Value: Dual DAC outputs eliminate external DAC ICs; 39-source DTC offloads ADC sweep and UART DMA tasks from CPU, improving real-time response. |
| Audio Equipment Power Management | Office Equipment Scanner Subsystem |
Use Scenario: Standby power supervisor and wake-up controller in AV receiver with remote IR and network-triggered resume. IC Role / Device Role / Timing Role: Low-power manager monitoring VCC, detecting IR pulses via INT pins, maintaining RTC in stop mode, and initiating full-system wake via RESET release. Use Value: 2.0 µA stop-mode current and programmable voltage detection ensure reliable deep-sleep behavior; 32 kHz XCIN clock sustains accurate timekeeping during standby. | Use Scenario: Image sensor interface and lamp dimming controller in flatbed document scanner. IC Role / Device Role / Timing Role: ADC-synchronized image capture using ADTRG trigger, PWM-controlled CCFL lamp brightness via Timer RB, and LIN-linked status reporting to main controller. Use Value: Hardware ADTRG input synchronizes sampling to lamp strobe timing; LIN module provides deterministic, low-pin-count status channel without UART resource contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21366CNFP | 32 KB program ROM, 2.5 KB RAM, same package and peripheral set | Higher firmware capacity for extended feature sets (e.g., multi-language UI, advanced diagnostics) | Select when >24 KB code space required; pin-compatible and register-mapped identical |
| R5F21365CNFA | Same memory and peripherals; PLQP0064GA-A package (0.4 mm pitch, thinner profile) | Space-constrained PCBs where 10 mm × 10 mm footprint must coexist with fine-pitch components | Select for higher-density layouts; requires requalification of solder profile due to pitch difference |
Compared with R5F21365CNFP#V0, R5F21366CNFP offers +8 KB ROM for complex control algorithms without changing layout, while R5F21365CNFA retains identical functionality in a finer-pitch LQFP - enabling compact designs where thermal mass and assembly yield permit tighter pitch.
Availability
R5F21365CNFP#V0 is available at Aetrix Electronics and suitable for home appliance motor control, industrial HMI panels, audio equipment power management, and office equipment scanner subsystems requiring stable component supply across long-life production cycles.
Supply support for R5F21365CNFP#V0 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 R8C/36C Group targets cost-sensitive, high-reliability embedded control in consumer and industrial appliances - emphasizing low EMI/EMS emissions, integrated analog peripherals, and robust flash programming endurance (10,000 write/erase cycles).
FAQ
What is the maximum operating frequency and supply voltage range for R5F21365CNFP#V0?
The R5F21365CNFP#V0 supports a maximum operating frequency of 20 MHz at VCC = 2.7–5.5 V, and 5 MHz at VCC = 1.8–5.5 V. Its wide voltage range enables direct integration into legacy 5 V systems or modern 3.3 V designs without level-shifting, and the 1.8 V lower limit allows compatibility with partially discharged battery rails in portable appliance subsystems.
Does R5F21365CNFP#V0 support background operation (BGO) for data flash writes?
Yes, R5F21365CNFP#V0 supports background operation (BGO) for its 4 × 1 KB data flash blocks. This allows the CPU to execute application code from program ROM while simultaneously erasing or programming data flash - critical for over-the-air firmware updates and runtime parameter storage in home appliance controllers without service interruption.
What timer resources does R5F21365CNFP#V0 provide for motor control applications?
R5F21365CNFP#V0 includes Timer RD (16-bit × 2, 4 capture/compare registers) with complementary PWM mode for three-phase waveform generation on six pins, plus Timer RC (16-bit) for encoder phase counting and Timer RE (8-bit) for real-time clock. These enable full BLDC/stepper motor control - including dead-time insertion, synchronous reset, and position feedback - without external timing ICs.
Is R5F21365CNFP#V0 qualified for industrial temperature range?
Yes, R5F21365CNFP#V0 is the N-version part rated for −20°C to +85°C operating ambient temperature. It meets industrial-grade reliability requirements for white goods, HVAC controls, and office equipment. For extended −40°C operation, the D-version (R5F21365CDFP) is available with identical pinout and functionality.
How many analog-to-digital converter channels and resolution does R5F21365CNFP#V0 offer?
R5F21365CNFP#V0 integrates a 10-bit successive-approximation ADC with 12 input channels (AN0–AN11), including sample-and-hold and hardware sweep mode. This supports simultaneous sampling of multiple sensors - such as thermistors, current shunts, and potentiometers - in motor control and environmental monitoring applications with ±1 LSB INL and monotonicity guaranteed.
R5F21365CNFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/3x/36C
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 24KB (24K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 12x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21365CNFP#V0 FAQ
1.How can I place an order for R5F21365CNFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21365CNFP#V0 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 R5F21365CNFP#V0 reliable?
The price and inventory of R5F21365CNFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21365CNFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F21365CNFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21365CNFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21365CNFP#V0?
R5F21365CNFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21365CNFP#V0 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 R5F21365CNFP#V0?
For technical support, including R5F21365CNFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21365CNFP#V0 requirements.
6.How does Aetrix verify that R5F21365CNFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F21365CNFP#V0 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 R5F21365CNFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F21365CNFP#V0?
All R5F21365CNFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21365CNFP#V0, 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 R5F21365CNFP#V0 part is unused and in its original packaging.
Return procedure for R5F21365CNFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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