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Renesas R5F21367CDFA#X4
- Part No.:
- R5F21367CDFA#X4
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F21367CDFA#X4.pdf
- Description:
- MICROCONTROLLER, 16 BIT, FLASH,
- Quantity:
- Payment:
- Shipping:
Inventory:28,962
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Product details
Overview
R5F21367CDFA#X4 from Renesas Electronics is a 16-bit R8C CPU core microcontroller in the R8C/36C Group, designed for embedded control in cost-sensitive industrial and consumer systems. It integrates 48 KB program ROM, 4 KB data flash with background operation (BGO), 10-bit A/D converter (12 channels), dual 8-bit D/A converters, LIN hardware module, and six independent timer units including complementary PWM-capable Timer RD. It operates across −40°C to +85°C and supports low-power wait/stop modes down to 2.0 µA.
For engineers reviewing the R5F21367CDFA#X4 datasheet, R5F21367CDFA#X4 pinout, R5F21367CDFA#X4 application, or R5F21367CDFA#X4 equivalent, key selection criteria include its 64-pin LQFP (PLQP0064GA-A) package, 48 KB flash capacity, −40°C industrial temperature grade, integrated LIN transceiver support via UART0 and Timer RA, and BGO-enabled data flash for firmware updates without halting execution.
Technical Context
The R5F21367CDFA#X4 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash blocks (1 KB × 4) mapped at 03000h–03FFFh.
Peripheral integration includes three UARTs (UART0–UART2), I²C bus (shared with SSU), synchronous serial unit (SSU), 14-bit watchdog timer with selectable low-speed on-chip oscillator, and DTC with 39 activation sources - enabling efficient peripheral-to-memory transfers without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min instruction time at 20 MHz |
| Memory | 48 KB program ROM + 4 KB data flash (1 KB × 4 blocks) with BGO |
| A/D Converter | 10-bit resolution, 12 input channels, sample-and-hold, sweep mode |
| D/A Converter | 8-bit × 2 independent outputs (DA0, DA1) |
| Timers | Timer RA/RB (8-bit), RC/RD/RF/RG (16-bit), RE (8-bit RTC), RD supports complementary PWM & three-phase waveforms |
| Serial Interfaces | UART0/1/2 (I²C mode on UART2), SSU, LIN hardware module (UART0 + Timer RA) |
| Operating Temp | −40°C to +85°C (D version), VCC = 1.8–5.5 V |
| Power Modes | Standard, wait (4.0 µA @ 3.0 V, 32 kHz), stop (2.0 µA @ 3.0 V) |
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 inputs / D/A outputs / timer I/O | AN0–AN7, DA0/DA1, TRCIOA–TRCIOD; support ADC, DAC, and trace I/O functions |
| P1_0–P1_3 | Key input / analog input / timer I/O | KI0–KI3, AN8–AN11, TRBO; enable low-pin-count keypad interface with interrupt |
| P2_0–P2_7 | Timer RD I/O / capture/compare | TRDIOA0–TRDIOD1, TRDCLK; support 6-pin complementary PWM and encoder phase counting |
| P3_0–P3_7 | UART2/I²C/SSU/INT3 | TXD2/RXD2/SCL2/SDA2/SCS/SSI/SSCK/SSO; shared pins enable flexible serial protocol routing |
| P4_2 | Reference voltage input | VREF; dedicated analog reference for A/D converter, input-only |
| P4_3/P4_4 | 32 kHz crystal interface | XCIN/XCOUT; connect 32.768 kHz crystal for real-time clock (Timer RE) |
| P4_6/P4_7 | Main system clock interface | XIN/XOUT; support 20 MHz ceramic resonator or external clock source |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes peripherals |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU code execution - enables seamless firmware field updates |
| Hardware LIN Module | Integrated LIN 2.0 physical layer support via UART0 and Timer RA - eliminates need for external LIN transceiver in basic node designs |
| Complementary PWM Output | Timer RD generates synchronized high-side/low-side PWM signals on 6 pins with dead-time insertion - suitable for 3-phase motor gate drive |
| Low-Power Real-Time Clock | Timer RE operates from 32 kHz XCIN clock in stop mode (2.0 µA), maintaining calendar time (sec/min/hr/day) without main CPU wake-up |
| Dual 8-bit D/A Converters | DA0 and DA1 provide independent analog outputs with programmable update timing - useful for sensor calibration offset correction or analog setpoint generation |
| 14-Bit Watchdog Timer | Configurable timeout with prescaler and independent low-speed oscillator - ensures fail-safe recovery even if main clock fails |
Applications
| Home Appliance Motor Control | Industrial Sensor Node |
|---|---|
Use Scenario: Variable-speed BLDC motor drive in washing machine drum control. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating complementary PWM via Timer RD, reading current sense ADC inputs, and managing LIN communication to UI panel. Use Value: Integrated 6-pin complementary PWM with dead-time control reduces external gate driver count; 10-bit ADC with sample-and-hold enables precise current sampling during PWM switching. | Use Scenario: Battery-powered environmental monitor with temperature/humidity/pressure sensing and wireless gateway interface. IC Role / Device Role / Timing Role: System manager acquiring analog sensor data, performing local compensation, storing logs in data flash, and communicating over UART to BLE/Wi-Fi module. Use Value: 4 KB data flash with BGO allows over-the-air firmware patching without interrupting sensor logging; ultra-low 2.0 µA stop-mode current extends battery life beyond 5 years. |
| Office Equipment Power Management | Audio Equipment Signal Processing |
Use Scenario: Standby power supervisor in multifunction printer with instant-on capability. IC Role / Device Role / Timing Role: Monitors AC line status, controls SMPS sequencing, manages USB/Wi-Fi wake events, and maintains real-time clock during deep sleep. Use Value: −40°C to +85°C rating ensures reliability in uncontrolled environments; RTC powered by 32 kHz crystal continues timekeeping in 2.0 µA stop mode. | Use Scenario: Digital volume control and analog output conditioning in active speaker crossover network. IC Role / Device Role / Timing Role: Receives I²C commands from DSP, adjusts dual 8-bit DAC outputs (DA0/DA1), reads potentiometer ADC inputs, and generates audio sync clocks. Use Value: Dual independent D/A converters enable simultaneous left/right channel gain adjustment; 12-channel ADC supports front-panel controls and thermal monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21367CNFA#X4 | Same core, package, and peripherals; rated for −20°C to +85°C (N version) | Limited to commercial ambient conditions; unsuitable for extended cold environments | Select when operating temperature stays above −20°C and cost sensitivity outweighs industrial-grade reliability |
| R5F21368CDFA#X4 | 64 KB program ROM (vs. 48 KB), same data flash, RAM, and peripheral set | Supports larger firmware images, e.g., enhanced communication stacks or safety diagnostics | Choose when application requires >48 KB code space but retains identical I/O, timing, and power characteristics |
Compared with R5F21367CNFA#X4, the R5F21367CDFA#X4 adds −40°C operational capability critical for outdoor or automotive-adjacent equipment; versus R5F21368CDFA#X4, it trades 16 KB ROM for lower cost and identical peripheral functionality - ideal for mature, size-optimized firmware deployments.
Availability
R5F21367CDFA#X4 is available at Aetrix Electronics and suitable for home appliance motor control, industrial sensor nodes, office equipment power management, and audio equipment signal processing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F21367CDFA#X4 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8C/36C Group was engineered for cost-effective, low-power embedded control in consumer and industrial appliances - emphasizing integrated analog peripherals, robust EMI/EMS performance, and field-upgradable flash architecture.
FAQ
What is the maximum operating frequency of the R5F21367CDFA#X4 and under what voltage conditions?
The R5F21367CDFA#X4 achieves a maximum operating frequency of 20 MHz when supplied at VCC = 2.7–5.5 V using an external XIN clock source. At reduced supply voltages (1.8–5.5 V), the maximum supported frequency drops to 5 MHz to maintain timing margin and stability across the full voltage range.
Does the R5F21367CDFA#X4 support in-circuit debugging and flash reprogramming?
Yes, the R5F21367CDFA#X4 includes on-chip debug capability and on-board flash rewrite functionality. It supports programming and erasure of both program ROM (1,000 cycles) and data flash (10,000 cycles) at VCC = 2.7–5.5 V, with ROM code protection and ID code check features enabled for secure firmware deployment.
How many independent PWM outputs does the R5F21367CDFA#X4 provide, and which timers generate them?
The R5F21367CDFA#X4 provides up to 9 independent PWM outputs: Timer RB offers 1-channel programmable waveform generation; Timer RC delivers 3-pin PWM or PWM2 mode; Timer RD supports 6-pin PWM, complementary PWM, and PWM3 mode - all configurable via dedicated capture/compare registers and output polarity control.
What is the purpose of the background operation (BGO) function in the R5F21367CDFA#X4 data flash?
The background operation (BGO) function allows the R5F21367CDFA#X4 to execute application code from program ROM while simultaneously erasing or programming data flash blocks. This enables non-disruptive firmware updates, parameter storage during runtime, and real-time logging without halting system operation - critical for uninterrupted industrial control tasks.
Can the R5F21367CDFA#X4 operate from a 32.768 kHz crystal alone, and what functions remain active in that mode?
Yes, the R5F21367CDFA#X4 can run entirely from the 32.768 kHz XCIN/XCOUT crystal in low-power modes. In stop mode, Timer RE (real-time clock) remains active for calendar timekeeping, the 14-bit watchdog timer continues monitoring, and the voltage detection circuit stays functional - all drawing only 2.0 µA at 3.0 V, enabling multi-year battery operation.
R5F21367CDFA#X4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/3x/36C
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 12x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21367CDFA#X4 FAQ
1.How can I place an order for R5F21367CDFA#X4 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21367CDFA#X4 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 R5F21367CDFA#X4 reliable?
The price and inventory of R5F21367CDFA#X4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21367CDFA#X4 is usually 5 days.
3.What payment methods are accepted for R5F21367CDFA#X4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21367CDFA#X4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21367CDFA#X4?
R5F21367CDFA#X4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21367CDFA#X4 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 R5F21367CDFA#X4?
For technical support, including R5F21367CDFA#X4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21367CDFA#X4 requirements.
6.How does Aetrix verify that R5F21367CDFA#X4 is sourced from the original manufacturer or authorized distributors?
All R5F21367CDFA#X4 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 R5F21367CDFA#X4 meets industry standards.
7.What is the process for return or replacement of R5F21367CDFA#X4?
All R5F21367CDFA#X4 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21367CDFA#X4, 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 R5F21367CDFA#X4 part is unused and in its original packaging.
Return procedure for R5F21367CDFA#X4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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