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Renesas R5F21368CDFA#50
- Part No.:
- R5F21368CDFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F21368CDFA#50.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,053
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Product details
Overview
R5F21368CDFA#50 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 10-bit A/D converter (12 channels), dual 8-bit D/A outputs, and integrated LIN hardware module. It targets embedded control in consumer audio and office equipment.
For engineers reviewing the R5F21368CDFA#50 datasheet, R5F21368CDFA#50 pinout, R5F21368CDFA#50 application, or R5F21368CDFA#50 equivalent, key selection considerations include its −40°C to +85°C industrial temperature grade, 64-pin LQFP (PLQP0064GA-A) package, on-chip debug support, and real-time clock (Timer RE) with calendar mode.
Technical Context
The R5F21368CDFA#50 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte (00000h–FFFFFh), with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash at 03000h–03FFFh.
Peripheral integration includes Timer RD (16-bit × 2, 6-pin PWM, complementary/triangular/sawtooth modulation), UART0/1/2 (I²C-capable), SSU, LIN hardware (using Timer RA + UART0), and voltage detection with selectable thresholds. Low-power modes include wait (4.0 µA @ 3.0 V, 32 kHz) and stop (2.0 µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC unit for signal processing acceleration |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) - defines real-time response latency and peripheral timing margins |
| Memory | 64 KB program ROM, 6 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO - enables firmware updates without halting execution |
| A/D Converter | 10-bit resolution × 12 channels with sample-and-hold and sweep mode - supports multi-sensor analog monitoring in single scan |
| D/A Converter | 8-bit × 2 channels - provides analog output for audio biasing or sensor calibration signals |
| Temperature Range | −40°C to +85°C (D version) - qualified for industrial ambient conditions without derating |
| Power Consumption | 7.0 mA typical @ 5.0 V/20 MHz; 4.0 µA @ 3.0 V/wait mode - enables battery-backed or energy-constrained designs |
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 / D/A output / timer I/O | AN0–AN7 and DA0/DA1 share pins; enables compact analog front-end with shared routing |
| P1_0–P1_3 | Analog input / key interrupt | AN8–AN11 + KI0–KI3 - supports touch-key interfaces with built-in debouncing via interrupt |
| P4_3/P4_4 | 32 kHz crystal input/output | XCIN/XCOUT - drives real-time clock oscillator independent of main system clock |
| P6_0/P6_4 | Timer RE output / UART1 I/O | TREO and RXD1/TXD1 - allows simultaneous RTC output and serial communication on dedicated pins |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - ensures reliable power-on initialization without external RC network |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erase/write during program execution - enables seamless firmware field updates without system interruption |
| Hardware LIN Module | Integrated LIN 2.0 support via Timer RA + UART0 - eliminates need for external transceiver in automotive body electronics |
| Multi-mode Timers | Timer RD supports complementary PWM, reset-synchronous PWM, and triangular/sawtooth modulation - suitable for motor control with dead-time management |
| Voltage Detection Circuit | Configurable voltage detection levels (VDD monitor + VDET3) with POR - ensures robust brown-out recovery in fluctuating supply environments |
| On-chip Debug Interface | Fully integrated debug circuit with flash rewrite - reduces development cycle time and eliminates external JTAG emulator dependency |
Applications
| Audio Equipment Control | Office Equipment Motor Control |
|---|---|
Use Scenario: Volume, tone, and source selection logic in portable audio receivers and active speakers. IC Role / Device Role / Timing Role: Main system controller executing UI state machine, ADC sampling for potentiometer inputs, and DAC output for analog biasing. Use Value: Integrated 12-channel ADC and dual DAC eliminate external converters; LIN module enables remote panel communication. | Use Scenario: Precision speed and direction control of paper feed and scanning motors in multifunction printers. IC Role / Device Role / Timing Role: Real-time motor driver managing PWM generation, encoder feedback capture (Timer RG phase counting), and thermal monitoring. Use Value: Timer RD's complementary PWM and dead-time insertion prevent shoot-through; 10-bit ADC monitors current sense resistors. |
| Consumer Appliance UI | Industrial Sensor Hub |
Use Scenario: Keypad scanning, display backlight control, and safety interlock monitoring in microwave ovens and washing machines. IC Role / Device Role / Timing Role: Dedicated key interrupt (KI0–KI3) handler with debounce, PWM-driven LED dimming, and voltage-detection-based fault shutdown. Use Value: Hardware key interrupts reduce CPU load; programmable voltage detection triggers immediate safe shutdown on overvoltage. | Use Scenario: Multi-sensor aggregation (temperature, humidity, pressure) with local preprocessing before CAN/I²C transmission. IC Role / Device Role / Timing Role: Data acquisition node performing ADC sweep, digital filtering, and timestamped logging to data flash via BGO. Use Value: 6 KB RAM buffers sensor streams; 4 KB data flash with BGO stores logs during continuous operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21368CNFA#50 | N-version (-20°C to +85°C); identical peripherals and memory but lower temperature rating | Suitable for commercial indoor applications only; not rated for industrial ambient extremes | Select when operating environment stays within −20°C to +85°C and cost sensitivity outweighs extended temp qualification |
| R5F21367CDFA#50 | 48 KB program ROM, 4 KB RAM, same package and peripherals - 16 KB less code space | Applicable where firmware footprint fits under 48 KB and BOM cost reduction is prioritized | Choose when application code size is verified ≤48 KB and full 64 KB headroom is unnecessary |
Compared with R5F21368CNFA#50, the R5F21368CDFA#50 adds −40°C startup reliability and wider supply tolerance; versus R5F21367CDFA#50, it provides 16 KB additional ROM for feature-rich firmware and 2 KB extra RAM for larger data buffers.
Availability
R5F21368CDFA#50 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor control, consumer appliance UI, and industrial sensor hub applications requiring stable component supply across extended temperature ranges.
Supply support for R5F21368CDFA#50 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 manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The R8C/36C Group is designed for cost-sensitive, low-power embedded control in consumer and industrial appliances, emphasizing integrated peripherals, robust EMI/EMS performance, and simplified development with on-chip debug.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21368CDFA#50?
The R5F21368CDFA#50 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8 V minimum. This dual-voltage/frequency capability allows flexible power-performance trade-offs in battery-powered or wide-input-range systems. The R5F21368CDFA#50 maintains full peripheral functionality across this range, including ADC accuracy and timer resolution.
Does the R5F21368CDFA#50 support in-system programming and background flash operations?
Yes, the R5F21368CDFA#50 supports background operation (BGO) for its 4 KB data flash (1 KB × 4 blocks), enabling erase/write while executing code from program ROM. It also includes on-chip debug and flash rewrite functions, allowing full firmware updates via standard interfaces without external programmers. The R5F21368CDFA#50 requires no special voltage sequencing for programming - all operations occur at normal VCC (2.7–5.5 V).
What peripheral modules are integrated into the R5F21368CDFA#50 for motor control applications?
The R5F21368CDFA#50 integrates Timer RD (16-bit × 2) with complementary PWM, reset-synchronous PWM, and triangular/sawtooth modulation modes - essential for 3-phase inverter gate driving. It also includes Timer RG with phase counting for quadrature encoder feedback, 10-bit ADC for current sensing, and LIN hardware for actuator communication. These features make the R5F21368CDFA#50 suitable for BLDC and stepper motor control without external timers or interface ICs.
How does the R5F21368CDFA#50 handle real-time clock functionality?
The R5F21368CDFA#50 implements real-time clock (RTC) functionality through Timer RE, an 8-bit timer operating in real-time clock mode that counts seconds, minutes, hours, and days of week using the 32 kHz XCIN/XCOUT crystal oscillator. It supports output compare for alarm generation and retains calendar accuracy independent of main CPU clock. The R5F21368CDFA#50 does not require external RTC ICs for timekeeping in consumer or industrial timers.
What is the package type and pin count of the R5F21368CDFA#50?
The R5F21368CDFA#50 uses a 64-pin LQFP package with code PLQP0064GA-A (10 mm × 10 mm, 0.5 mm pitch). This package is RoHS-compliant and compatible with standard surface-mount assembly processes. Pin assignments match the R8C/36C Group specification, including dedicated analog inputs (AN0–AN11), UART/SSU/I²C interfaces, and timer I/O with configurable alternate functions. The R5F21368CDFA#50 shares footprint compatibility with other R8C/36C variants in the same package family.
R5F21368CDFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/3x/36C
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21368CDFA#50 FAQ
1.How can I place an order for R5F21368CDFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21368CDFA#50 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 R5F21368CDFA#50 reliable?
The price and inventory of R5F21368CDFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21368CDFA#50 is usually 5 days.
3.What payment methods are accepted for R5F21368CDFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21368CDFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21368CDFA#50?
R5F21368CDFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21368CDFA#50 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 R5F21368CDFA#50?
For technical support, including R5F21368CDFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21368CDFA#50 requirements.
6.How does Aetrix verify that R5F21368CDFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F21368CDFA#50 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 R5F21368CDFA#50 meets industry standards.
7.What is the process for return or replacement of R5F21368CDFA#50?
All R5F21368CDFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21368CDFA#50, 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 R5F21368CDFA#50 part is unused and in its original packaging.
Return procedure for R5F21368CDFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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