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Renesas R5F21355CDFP#30
- Part No.:
- R5F21355CDFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21355CDFP#30.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F21355CDFP#30 from Renesas Electronics is a 16-bit R8C CPU core MCU with 24 KB flash program ROM, 2 KB data flash (4 × 1 KB blocks), and 2 KB RAM, operating at up to 20 MHz (VCC = 2.7–5.5 V) with 50 ns minimum instruction execution time; it integrates UART0/1/2, I²C, LIN, 10-bit × 12-channel ADC, dual 8-bit DACs, and six timer modules (RA–RE + RD dual 16-bit) for embedded control in consumer appliances and office equipment.
For engineers reviewing the R5F21355CDFP#30 datasheet, R5F21355CDFP#30 pinout, R5F21355CDFP#30 application, or R5F21355CDFP#30 equivalent, key selection criteria include its −40°C to +85°C industrial temperature grade, 52-pin LQFP package with PLQP0052JA-A footprint, background operation (BGO) support for data flash, and hardware LIN module using Timer RA and UART0.
Technical Context
The R5F21355CDFP#30 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.
It supports four clock sources: XIN (up to 20 MHz), XCIN (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - with selectable frequency dividers (1/2/4/8/16) and oscillation stop detection. Power modes include standard, wait (3.5 µA @ 3.0 V, 32 kHz), and stop (2.0 µA @ 3.0 V).
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 | 24 KB flash program ROM, 2 KB RAM, 4 × 1 KB data flash blocks with BGO |
| Operating Temp | −40°C to +85°C (D version), validated for industrial ambient conditions |
| ADC/DAC | 10-bit resolution × 12 channels with sample-and-hold; dual 8-bit DAC outputs (DA0/DA1) |
| Timers | Timer RA (8-bit), RB (8-bit PWM), RC (16-bit, 4 capture/compare), RD (dual 16-bit, 6-pin PWM & 3-phase output), RE (8-bit RTC) |
| Serial Interfaces | UART0/1/2 (UART2 supports I²C mode), SSU, hardware LIN module (Timer RA + UART0) |
| Package | 52-pin LQFP, PLQP0052JA-A (10 mm × 10 mm, 0.65 mm pitch) |
Pinout & Package
52-pin LQFP package (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pin pitch, exposed pad not specified. Pin functions support multiplexed peripheral assignment via software configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | CMOS I/O port with analog input (AN0–AN7) | Configurable as digital I/O or ADC inputs; P0_6/P0_7 also serve DA0/DA1 outputs |
| P1_0–P1_7 | CMOS I/O port with key interrupt (KI0–KI3) and analog input (AN8–AN11) | Supports wake-up from low-power modes via key press; AN8–AN11 extend ADC channel count |
| P2_0–P2_7 | CMOS I/O port with TRDIOx timer functions | Primary interface for Timer RD's 8 I/O pins (TRDIOA0–TRDIOD1) for PWM and 3-phase motor control |
| P3_0–P3_7 | CMOS I/O port with I²C (SCL/SDA), SSU (SSCK/SSI/SCS/SSO), and UART2 signals | Shared pins enable flexible serial protocol routing without external logic |
| P4_2–P4_7 | VREF input, MODE, RESET, XCIN/XCOUT, XIN/XOUT | VREF sets ADC/DAC reference; MODE selects boot mode; RESET is active-low asynchronous reset |
| P5_6/P5_7 | TRAIO/TRAO (Timer RA I/O) and general-purpose I/O | Timer RA output (TRAO) drives external timing signals or LED dimming waveforms |
| P6_0–P6_7 | TREO (Timer RE output), INT2/INT3/INT4, UART1/UART2, CLK1/CLK2 | TREO provides real-time clock division output; P6_6/P6_7 support UART2 I²C-bus (SDA2/SCL2) |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent data flash erase/write and program execution - critical for firmware updates without halting control loops |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via Timer RA and UART0 eliminates need for external transceiver in automotive body electronics |
| Dual 8-bit DAC Outputs | DA0 and DA1 provide independent analog voltage generation for sensor biasing or actuator control without external DAC ICs |
| Low-Power Stop Mode | 2.0 µA typical current draw at 3.0 V enables multi-year battery life in always-on monitoring applications |
| 10-bit × 12-Channel ADC | Includes sweep mode and sample-and-hold for simultaneous multi-sensor acquisition in appliance motor control |
Applications
| Home Appliance Motor Control | Office Equipment Power Management |
|---|---|
Use Scenario: Variable-speed control of BLDC motors in washing machines and air conditioners. IC Role / Device Role / Timing Role: Primary MCU executing FOC algorithms, driving gate drivers via PWM outputs from Timer RD, and sampling current/voltage via ADC channels. Use Value: Integrated 6-pin complementary PWM mode enables three-phase waveform generation with dead-time control - reducing external component count by ≥3 drivers. | Use Scenario: Standby power regulation and system wake-up in multifunction printers. IC Role / Device Role / Timing Role: System supervisor managing power sequencing, monitoring AC input via ADC, and controlling DC-DC converters via DAC outputs. Use Value: 2.0 µA stop mode and voltage detection circuit ensure <100 µW standby consumption while maintaining fast wake-up response (<10 µs). |
| Audio Equipment Signal Processing | Consumer IoT Sensor Hub |
Use Scenario: Volume leveling and tone adjustment in portable speakers. IC Role / Device Role / Timing Role: Audio signal conditioner using dual DACs for analog output mixing and ADC for microphone input conditioning. Use Value: Simultaneous 12-channel ADC sweep mode captures multi-microphone array data for beamforming without DMA overhead. | Use Scenario: Environmental sensing node aggregating temperature, humidity, and motion data. IC Role / Device Role / Timing Role: Sensor fusion controller reading I²C sensors, logging to data flash, and transmitting via UART2 to gateway. Use Value: Background operation (BGO) allows continuous sensor logging during active BLE communication - eliminating data loss during firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21355CNFP#30 | Same core, memory, and peripherals but rated for −20°C to +85°C (N version) | Suitable for commercial indoor environments only; lacks extended low-temp operation | Select when cost sensitivity outweighs industrial temperature requirement |
| R5F21356CDFP#30 | 32 KB program ROM (+8 KB), 2.5 KB RAM (+0.5 KB), identical D-version temp range and package | Required for larger firmware images with integrated USB stack or OTA update handler | Choose when application firmware exceeds 24 KB and requires future expansion headroom |
Compared with R5F21355CNFP#30, the R5F21355CDFP#30 adds −40°C startup reliability and wider supply tolerance (1.8 V min); versus R5F21356CDFP#30, it trades 8 KB ROM for lower cost and reduced code footprint in resource-constrained designs.
Availability
R5F21355CDFP#30 is available at Aetrix Electronics and suitable for home appliance motor control, office equipment power management, audio equipment signal processing, and consumer IoT sensor hub applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F21355CDFP#30 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 industrial, automotive, and enterprise markets.
The R8C/35C Group, including R5F21355CDFP#30, was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integration of motor control timers, LIN, and mixed-signal peripherals in compact LQFP packages.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21355CDFP#30?
The R5F21355CDFP#30 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8–5.5 V. Its minimum instruction execution time is 50 ns under full-speed conditions, enabling deterministic real-time response in motor control loops and sensor sampling routines.
Does the R5F21355CDFP#30 support in-system programming and debug interfaces?
Yes, the R5F21355CDFP#30 includes on-chip debug capability and supports in-system flash rewriting via dedicated debug pins. It features ROM code protection and ID code check for secure firmware deployment, and allows background operation (BGO) during data flash programming - enabling live firmware updates without halting application execution.
How many ADC channels and what resolution does the R5F21355CDFP#30 provide?
The R5F21355CDFP#30 integrates a 10-bit successive-approximation ADC with 12 input channels (AN0–AN11), including sample-and-hold functionality and sweep mode for sequential conversion. Channels are distributed across ports P0 (AN0–AN7), P1 (AN8–AN11), and support external trigger (ADTRG) for synchronized sampling with PWM events.
What timer resources are available on the R5F21355CDFP#30 for motor control applications?
The R5F21355CDFP#30 provides Timer RD (dual 16-bit) with six PWM output pins, complementary PWM mode for three-phase motor drive, and reset-synchronous PWM for precise commutation timing. Timer RC adds 4 capture/compare registers, and Timer RB delivers programmable waveform generation - collectively supporting BLDC, stepper, and brushed DC motor control without external timing ICs.
Is the R5F21355CDFP#30 pin-compatible with other devices in the R8C/35C Group?
Yes, all R8C/35C Group MCUs - including R5F21354CDFP#30 through R5F2135CCDFP#30 - share the identical 52-pin LQFP package (PLQP0052JA-A) and pinout. Firmware and PCB layout are interchangeable across the family; differentiation is limited to flash/RAM size, temperature grade, and minor SFR initialization defaults - simplifying design scalability.
R5F21355CDFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35C
- Packaging:
- Tray
- 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:
- 47
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21355CDFP#30 FAQ
1.How can I place an order for R5F21355CDFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21355CDFP#30 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 R5F21355CDFP#30 reliable?
The price and inventory of R5F21355CDFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21355CDFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21355CDFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21355CDFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21355CDFP#30?
R5F21355CDFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21355CDFP#30 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 R5F21355CDFP#30?
For technical support, including R5F21355CDFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21355CDFP#30 requirements.
6.How does Aetrix verify that R5F21355CDFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21355CDFP#30 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 R5F21355CDFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21355CDFP#30?
All R5F21355CDFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21355CDFP#30, 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 R5F21355CDFP#30 part is unused and in its original packaging.
Return procedure for R5F21355CDFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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