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Renesas R5F21368CNFP#V0
- Part No.:
- R5F21368CNFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F21368CNFP#V0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,215
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Product details
Overview
R5F21368CNFP#V0 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 64 KB program ROM, 6 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It operates at up to 20 MHz (VCC = 2.7–5.5 V), features 59 CMOS I/O ports with selectable pull-up resistors, and integrates UART0/1/2, I²C, LIN, 10-bit × 12-channel ADC, dual 8-bit DACs, and six timer modules (RA–RG) for motor control and real-time signal processing in embedded appliance systems.
For engineers reviewing the R5F21368CNFP#V0 datasheet, R5F21368CNFP#V0 pinout, R5F21368CNFP#V0 application, or R5F21368CNFP#V0 equivalent, key selection criteria include its 64-pin LQFP (PLQP0064KB-A) package, −20°C to +85°C industrial temperature grade, integrated LIN hardware module, BGO-capable data flash, and multi-mode clock system with high-speed on-chip oscillator, XCIN 32 kHz crystal input, and oscillation stop detection.
Technical Context
The R5F21368CNFP#V0 implements the R8C CPU core with 89 fundamental instructions, 1 Mbyte address space, and a dedicated 16×16→32-bit multiplier with multiply-accumulate capability. Its memory architecture separates program ROM (04000h–13FFFh), data flash (03000h–03FFFh), and RAM (00400h–01BFFh), enabling concurrent code execution and data flash reprogramming via BGO.
Peripheral integration includes Timer RD (16-bit × 2, 6-pin complementary PWM for three-phase motor drive), hardware LIN module (using Timer RA and UART0), and dual D/A converters (DA0/DA1) with analog output capability. Clock flexibility is provided by four independent sources: XIN (up to 20 MHz), XCIN (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - all selectable via software-controlled frequency dividers (1/2/4/8/16).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 1 Mbyte address space, and 16×16→32-bit hardware multiplier |
| Memory | 64 KB program ROM, 6 KB RAM, 4 KB data flash (1 KB × 4 blocks) with background operation (BGO) |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) |
| I/O Ports | 59 CMOS I/O pins with programmable pull-up resistors; 1 input-only pin (P4_2) |
| Analog Peripherals | 10-bit × 12-channel ADC with sample-and-hold and sweep mode; dual 8-bit DACs (DA0, DA1) |
| Timers | Timer RA (8-bit), RB (8-bit PWM), RC (16-bit × 1), RD (16-bit × 2, 6-pin complementary PWM), RE (RTC), RF (16-bit), RG (16-bit phase counting) |
| Serial Interfaces | UART0/1/2 (UART2 supports I²C mode), SSU (shared with I²C), hardware LIN module (Timer RA + UART0) |
| Package & Temp | 64-pin LQFP (PLQP0064KB-A), −20°C to +85°C operating ambient temperature (N version) |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-A), 10 mm × 10 mm body, 0.5 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / D/A output / Timer I/O | AN0–AN7, DA0/DA1, TRCIOA–TRCIOD - support ADC sampling, DAC output, and Timer RC capture/compare functions |
| P1_0–P1_7 | Analog input / Key interrupt / Serial I/O | AN8–AN11, KI0–KI3, TXD0/RXD0, CLK0 - enable touch-key sensing, UART0 communication, and clock generation |
| P2_0–P2_7 | Timer RD I/O / External trigger | TRDIOA0–TRDIOD1, TRDCLK - provide 8 dedicated pins for dual 16-bit Timer RD PWM outputs and external clock inputs |
| P3_0–P3_7 | UART2 / I²C / SSU / Interrupt | RXD2/TXD2/SCL2/SDA2, SSI/SSCK/SSO, INT3/SCS - enable full I²C bus, synchronous serial, and multiprocessor UART2 operation |
| P4_2 | Reference voltage input | VREF - analog reference input for A/D converter; input-only pin requiring external voltage source |
| P4_3/P4_4 | 32 kHz crystal interface | XCIN/XCOUT - connect 32 kHz crystal for real-time clock (Timer RE) and low-power stop mode operation |
| P4_6/P4_7 | Main system clock interface | XIN/XOUT - support ceramic resonator or crystal up to 20 MHz; external clock input possible on XOUT |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and registers; requires external pull-up and debouncing |
| MODE | Boot mode configuration | Connected to VCC via resistor to select single-chip mode; determines startup behavior and memory mapping |
| VCC/AVCC | Power supply inputs | VCC (1.8–5.5 V digital supply), AVCC (analog supply for ADC/DAC; requires decoupling to AVSS) |
| VSS/AVSS | Ground reference | VSS (digital ground), AVSS (analog ground); separate planes recommended for noise-sensitive analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent program execution and data flash erase/write without halting CPU - critical for firmware updates in field-deployed appliances |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support using Timer RA and UART0 - eliminates external transceiver for automotive body electronics and HVAC subsystems |
| Complementary PWM Output | Timer RD provides synchronized 6-pin complementary PWM with dead-time insertion - directly drives 3-phase inverter bridges in motor control applications |
| Multi-Source Clock System | Four independent clock sources (XIN, XCIN, high-speed/low-speed on-chip oscillators) with software-selectable dividers - enables dynamic power/performance trade-offs across operating modes |
| EMI/EMS Optimized Design | On-chip EMI suppression circuitry and optimized I/O drive strength reduce radiated emissions - simplifies compliance testing for consumer and industrial equipment |
| Low-Power Stop Mode | 2.0 µA typical current consumption at 3.0 V in stop mode with XCIN active - extends battery life in always-on sensor nodes and remote controls |
Applications
| Home Appliance Motor Control | Industrial HVAC Sensor Node |
|---|---|
Use Scenario: Variable-speed BLDC motor drive in washing machine drum and pump systems. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, generating 6-pin complementary PWM via Timer RD, and managing LIN communication with user interface panel. Use Value: Eliminates need for external gate driver and LIN transceiver; BGO allows over-the-air firmware updates without interrupting motor operation. | Use Scenario: Wireless-connected HVAC zone controller with temperature/humidity sensing and actuator feedback. IC Role / Device Role / Timing Role: System-on-chip handling 12-channel ADC sampling, dual DAC output for valve control, RTC-based scheduling, and UART-to-LoRaWAN bridge via UART2. Use Value: Integrated 32 kHz XCIN RTC and 2.0 µA stop mode enable multi-year battery life; hardware LIN supports legacy damper actuator networks. |
| Audio Equipment Power Management | Office Equipment Keypad Interface |
Use Scenario: Class-D amplifier power stage sequencing and thermal monitoring in compact soundbars. IC Role / Device Role / Timing Role: Supervisor IC monitoring VCC, executing voltage detection (VDD = 2.7–5.5 V), controlling power rails via GPIO, and logging thermal events to data flash. Use Value: On-chip voltage detection circuit with 2-level configurable thresholds replaces discrete supervisor IC; BGO preserves logs during brown-out recovery. | Use Scenario: Matrix keypad scanner with anti-ghosting and wake-on-keypress in multifunction printers. IC Role / Device Role / Timing Role: Dedicated key input interrupt handler (KI0–KI3) with debounce logic, driving LED indicators via high-current I/O ports, and communicating status via UART1. Use Value: Hardware key interrupt with 4 independent sources reduces CPU polling overhead; 59 I/O ports support large 8×8 keypad + status LEDs without external expanders. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21368CNFA#V0 | Different package: PLQP0064GA-A (64-pin LQFP, thinner profile vs. PLQP0064KB-A) | Same memory, peripherals, and temperature grade; mechanical fit differs in height and thermal pad presence | Select when board stack height or thermal dissipation requirements mandate the GA variant's 1.6 mm max height |
| R5F21368CDFP#V0 | Extended temperature range: −40°C to +85°C (D version) vs. −20°C to +85°C (N version) | Identical functionality but qualified for automotive under-hood or industrial outdoor environments | Choose for deployments outside standard industrial ambient limits; requires validation of external components over full range |
Compared with R5F21368CNFP#V0, the CNFA#V0 offers identical electrical specs in a mechanically distinct LQFP variant, while the CDFP#V0 extends operational reliability to −40°C without altering peripheral configuration - both retain full pin compatibility and software binary compatibility.
Availability
R5F21368CNFP#V0 is available at Aetrix Electronics and suitable for home appliance motor control, industrial HVAC sensor nodes, audio equipment power management, and office equipment keypad interfaces requiring stable component supply and long-term production continuity.
Supply support for R5F21368CNFP#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 applications in consumer electronics and industrial equipment, emphasizing low EMI, integrated analog peripherals, and robust flash programming capabilities.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21368CNFP#V0?
The R5F21368CNFP#V0 supports a maximum operating frequency of 20 MHz at VCC = 2.7–5.5 V, and a minimum frequency of 5 MHz at VCC = 1.8–5.5 V. Its wide voltage range enables direct integration into legacy 5 V systems and modern 3.3 V designs without level-shifting, and the on-chip voltage detection circuit monitors supply integrity across this entire span.
Does the R5F21368CNFP#V0 support background operation (BGO) for data flash programming?
Yes, the R5F21368CNFP#V0 includes background operation (BGO) for its 4 KB data flash (1 KB × 4 blocks), allowing the CPU to execute application code while erasing or writing flash memory. This capability is essential for implementing field firmware updates and nonvolatile parameter storage without interrupting real-time tasks like motor control or sensor acquisition.
How many analog-to-digital converter (ADC) channels does the R5F21368CNFP#V0 integrate, and what is their resolution?
The R5F21368CNFP#V0 integrates a 10-bit resolution analog-to-digital converter with 12 input channels (AN0–AN11), including sample-and-hold functionality and hardware sweep mode. This ADC supports simultaneous sampling of multiple sensors in home appliance and HVAC applications, with conversion times optimized for real-time closed-loop control loops.
What timer resources are available on the R5F21368CNFP#V0 for motor control applications?
The R5F21368CNFP#V0 provides Timer RD (16-bit × 2) with 4 capture/compare registers and 6 dedicated output pins for complementary PWM generation - directly supporting three-phase inverter drive with dead-time control. Combined with Timer RC (16-bit, 3-pin PWM) and Timer RB (8-bit PWM), it delivers flexible waveform generation for BLDC, PMSM, and stepper motor control without external timers.
Is the R5F21368CNFP#V0 pin-compatible with other members of the R8C/36C Group?
Yes, the R5F21368CNFP#V0 shares the same 64-pin LQFP (PLQP0064KB-A) package and pinout with all R8C/36C Group variants including R5F21364–R5F2136C, enabling hardware reuse across memory configurations. Peripheral register maps and interrupt vectors are consistent, allowing software binaries to scale across ROM/RAM sizes with minimal recompilation.
R5F21368CNFP#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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 6K 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:
R5F21368CNFP#V0 FAQ
1.How can I place an order for R5F21368CNFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21368CNFP#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 R5F21368CNFP#V0 reliable?
The price and inventory of R5F21368CNFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21368CNFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F21368CNFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21368CNFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21368CNFP#V0?
R5F21368CNFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21368CNFP#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 R5F21368CNFP#V0?
For technical support, including R5F21368CNFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21368CNFP#V0 requirements.
6.How does Aetrix verify that R5F21368CNFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F21368CNFP#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 R5F21368CNFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F21368CNFP#V0?
All R5F21368CNFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21368CNFP#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 R5F21368CNFP#V0 part is unused and in its original packaging.
Return procedure for R5F21368CNFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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