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Renesas R5F21368CNFA#V0
- Part No.:
- R5F21368CNFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F21368CNFA#V0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,770
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Product details
Overview
R5F21368CNFA#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 pull-up selection, and integrates UART0/1/2, I²C, LIN, 10-bit × 12-channel ADC, dual 8-bit DACs, and six timer modules including complementary PWM-capable Timer RD. It targets embedded control in consumer audio and office equipment.
For engineers reviewing the R5F21368CNFA#V0 datasheet, R5F21368CNFA#V0 pinout, R5F21368CNFA#V0 application, or R5F21368CNFA#V0 equivalent, key selection criteria include its −20°C to +85°C industrial temperature grade, 64-pin LQFP (PLQP0064GA-A) package, real-time clock (Timer RE), voltage detection circuit, and on-chip debug capability for firmware development and field updates.
Technical Context
The R5F21368CNFA#V0 implements the R8C CPU core with 89 fundamental instructions, 1 Mbyte address space, and hardware multiplier (16×16→32-bit) plus multiply-accumulate support. Its memory architecture separates program ROM (04000h–13FFFh), data flash (03000h–03FFFh), and RAM (00400h–01BFFh), enabling concurrent BGO writes to data flash while executing code from ROM.
Peripheral integration includes three UART channels (UART0/1/2), one shared SSU/I²C interface, hardware LIN module (using Timer RA and UART0), 12-channel 10-bit ADC with sample-and-hold and sweep mode, and Timer RD with reset-synchronous and complementary PWM modes for three-phase motor control - all managed via dedicated SFRs and DTC-triggered transfers.
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 |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) - enables high-speed signal processing in power-constrained systems |
| Memory | 64 KB program ROM, 6 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO - supports firmware updates without halting execution |
| Analog Peripherals | 10-bit × 12-channel ADC with sample-and-hold and sweep mode; dual 8-bit DACs (DA0/DA1) - suitable for sensor interfacing and analog output control |
| Timers | Timer RA/RB (8-bit), RC/RD/RF/RG (16-bit), RE (8-bit RTC); Timer RD supports complementary PWM for 3-phase motor drive |
| Communication | UART0/1/2, I²C bus (shared with SSU), hardware LIN (UART0 + Timer RA), 39-source DTC - reduces host CPU overhead in protocol-heavy applications |
| Package & Temp | 64-pin LQFP (PLQP0064GA-A), −20°C to +85°C operating range - standard industrial footprint with validated thermal performance |
Pinout & Package
Package: 64-pin LQFP (PLQP0064GA-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 for ADC; DA0/DA1 outputs; TRCIOA–TRCIOD for Timer RC capture/compare |
| P1_0–P1_7 | General I/O / Key interrupt / UART / ADC | KI0–KI3 key inputs; RXD0/TXD0 serial I/O; AN8–AN11 ADC inputs; TRAIO/TRBO timer I/O |
| P2_0–P2_7 | Timer RD I/O / Interrupt | TRDIOA0–TRDIOD1 for 6-pin complementary PWM; INT1 interrupt source |
| P3_0–P3_7 | UART2 / I²C / SSU / Interrupt | RXD2/TXD2/SCL2/SDA2 for UART/I²C; SSI/SSCK/SSO for SSU; INT1/INT2/INT3 sources |
| P4_2 | Analog reference input | VREF pin for A/D converter reference voltage - requires external decoupling |
| P4_3/P4_4 | 32 kHz crystal interface | XCIN/XCOUT pins for low-power real-time clock oscillator - enables stop-mode current of 2.0 µA |
| P4_6/P4_7 | Main system clock | XIN/XOUT pins for 20 MHz crystal or external clock - supports high-speed operation and oscillation stop detection |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up - initiates power-on reset and voltage detection recovery |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU code execution - enables seamless firmware updates |
| Hardware LIN Module | Integrated LIN 2.1 physical layer using UART0 and Timer RA - eliminates external transceiver in automotive body electronics |
| Complementary PWM (Timer RD) | 6-pin output with dead-time insertion and synchronous reset - directly drives 3-phase inverter bridges for BLDC motors |
| Low-Power Operating Modes | Wait mode (4.0 µA @ 32 kHz), stop mode (2.0 µA) - extends battery life in portable audio and remote controls |
| On-Chip Debug Interface | Fully integrated debug circuit with flash rewrite capability - supports in-system programming and real-time trace without external JTAG pod |
Applications
| Audio Equipment Control | Office Equipment Motor Drive |
|---|---|
Use Scenario: Digital audio receiver with volume, tone, and source selection logic. IC Role / Device Role / Timing Role: Main system controller managing IR decoding, display, DAC output, and amplifier bias sequencing. Use Value: Integrated 10-bit ADC reads potentiometer positions; dual 8-bit DACs generate analog bias voltages; UART2 handles remote control protocol parsing. | Use Scenario: Paper feed and scanning motor control in multifunction printers. IC Role / Device Role / Timing Role: Dedicated motion controller generating synchronized PWM waveforms for stepper or BLDC motors. Use Value: Timer RD's complementary PWM mode with dead-time control drives H-bridge drivers; 12-channel ADC monitors current and temperature feedback. |
| Consumer Appliance UI | Industrial Sensor Node |
Use Scenario: Touchless control panel in microwave ovens using capacitive proximity sensing. IC Role / Device Role / Timing Role: Front-end interface MCU handling key scan, LED backlight dimming, and safety interlock monitoring. Use Value: KI0–KI3 key inputs detect user gestures; PWM output on Timer RB dims LEDs; voltage detection circuit ensures safe shutdown during brownout. | Use Scenario: Wireless environmental monitor with analog sensor conditioning and serial telemetry. IC Role / Device Role / Timing Role: Signal acquisition and preprocessing unit converting analog sensor outputs to digital packets for transmission. Use Value: 10-bit ADC samples thermistor and humidity sensors; UART1 transmits data to gateway; low-power stop mode extends battery life to >2 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21368CNFP#V0 | Same core, memory, and peripherals; differs only in package (PLQP0064KB-A vs PLQP0064GA-A) | Identical functionality; PLQP0064KB-A has different land pattern and thermal pad configuration | Select when PCB layout uses the KB-A variant footprint and thermal requirements match |
| R5F21368CDFA#V0 | Same package and pinout; extended temperature range (−40°C to +85°C) and D-version qualification | Required for automotive under-hood or industrial outdoor deployments where ambient exceeds 85°C | Choose for harsh-environment designs needing guaranteed operation down to −40°C |
Compared with R5F21368CNFA#V0, the CNFP#V0 offers identical electrical behavior in a mechanically distinct LQFP variant, while the CDFA#V0 provides extended temperature reliability at no functional trade-off - both retain full BGO, LIN, and complementary PWM capabilities.
Availability
R5F21368CNFA#V0 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor drive, and consumer appliance UI requiring stable component supply across long-lifecycle production programs.
Supply support for R5F21368CNFA#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, and power solutions for automotive, industrial, and IoT markets.
The R8C/36C Group is designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integrated analog peripherals, robust EMI/EMS performance, and on-chip debug for rapid firmware iteration.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21368CNFA#V0?
The R5F21368CNFA#V0 operates at up to 20 MHz when supplied with 2.7 V to 5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8 V minimum supply. This dual-voltage/frequency capability allows flexible power management in battery-powered and line-powered applications without sacrificing real-time responsiveness.
Does the R5F21368CNFA#V0 support background operation for data flash writes?
Yes, the R5F21368CNFA#V0 supports background operation (BGO) for its 4 KB data flash (1 KB × 4 blocks), allowing erase and program operations to proceed concurrently with CPU code execution from program ROM. This enables live firmware updates and parameter storage without system interruption.
What peripheral interfaces are integrated into the R5F21368CNFA#V0?
The R5F21368CNFA#V0 integrates UART0/1/2, I²C bus (shared with SSU), hardware LIN (using UART0 and Timer RA), 10-bit × 12-channel ADC, dual 8-bit DACs, six independent timers (including complementary PWM-capable Timer RD), and a 39-source Data Transfer Controller - eliminating need for external protocol co-processors in most embedded designs.
What is the operating temperature grade of the R5F21368CNFA#V0?
The R5F21368CNFA#V0 is rated for −20°C to +85°C ambient operation (N version), making it suitable for indoor consumer and commercial equipment such as audio receivers, printers, and home appliances where extended industrial or automotive temperature ranges are not required.
How does the R5F21368CNFA#V0 handle low-power operation in battery-powered devices?
The R5F21368CNFA#V0 achieves ultra-low standby current: 4.0 µA in wait mode (with 32 kHz XCIN clock active) and 2.0 µA in stop mode. Its multiple clock sources (high/low-speed on-chip oscillators, XIN/XCIN crystals) and programmable peripheral gating allow precise power budgeting for remote controls, sensors, and portable audio accessories.
R5F21368CNFA#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:
R5F21368CNFA#V0 FAQ
1.How can I place an order for R5F21368CNFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21368CNFA#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 R5F21368CNFA#V0 reliable?
The price and inventory of R5F21368CNFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21368CNFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F21368CNFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21368CNFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21368CNFA#V0?
R5F21368CNFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21368CNFA#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 R5F21368CNFA#V0?
For technical support, including R5F21368CNFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21368CNFA#V0 requirements.
6.How does Aetrix verify that R5F21368CNFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F21368CNFA#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 R5F21368CNFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F21368CNFA#V0?
All R5F21368CNFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21368CNFA#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 R5F21368CNFA#V0 part is unused and in its original packaging.
Return procedure for R5F21368CNFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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