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Renesas R5F21354CDFP#30
- Part No.:
- R5F21354CDFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21354CDFP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F21354CDFP#30 from Renesas is a 16-bit R8C CPU core microcontroller with 16 KB flash program ROM, 1.5 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It delivers 50 ns minimum instruction execution at 20 MHz (VCC = 2.7–5.5 V), integrates dual 8-bit timers (RA/RB), one 16-bit timer (RC), dual 16-bit timers (RD), real-time clock (RE), 10-bit × 12-channel ADC, dual 8-bit DACs, LIN hardware module, and operates across –40°C to +85°C for industrial appliance control.
For engineers reviewing the R5F21354CDFP#30 datasheet, R5F21354CDFP#30 pinout, R5F21354CDFP#30 application, or R5F21354CDFP#30 equivalent, this page provides verified technical context, package mapping, peripheral register-level functionality, low-power mode behavior, and direct alternative part comparisons for embedded motor control, appliance HMI, and industrial sensor interface designs.
Technical Context
The R5F21354CDFP#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. Power management includes wait mode (3.5 µA @ 3.0 V, 32 kHz) and stop mode (2.0 µA @ 3.0 V), with voltage detection circuits enabling power-on reset and selectable level monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC support - enables efficient motor control math and real-time signal processing. |
| Memory | 16 KB program flash ROM, 1.5 KB RAM, 4 KB data flash (1 KB × 4 blocks with BGO) - allows in-field firmware updates without halting application execution. |
| Operating Temp | –40°C to +85°C (D version) - qualified for industrial-grade environmental stress in HVAC, factory automation, and power tools. |
| ADC/DAC | 10-bit resolution × 12 channels with sample-and-hold and sweep mode; dual 8-bit DAC outputs - supports analog sensor acquisition and actuator feedback control. |
| Timers | Timer RA/RB (8-bit × 2), RC (16-bit × 1), RD (16-bit × 2 with 6-pin PWM, complementary & reset-synchronous modes), RE (8-bit RTC) - enables multi-axis motor commutation, PWM-driven displays, and time-stamped event logging. |
| Serial Interfaces | UART0/1/2 (with I²C-bus mode on UART2), SSU, LIN hardware module (using Timer RA + UART0) - supports legacy RS-232, I²C sensor networks, and automotive-grade LIN bus communication. |
| Power Modes | Standard, wait (3.5 µA @ 32 kHz), and stop (2.0 µA) modes - extends battery life in portable industrial monitors and remote sensors. |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pitch - compatible with standard surface-mount reflow processes and industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC | Power supply input / Analog reference | 1.8–5.5 V digital supply; separate analog rail reduces noise coupling into ADC/DAC paths. |
| VSS / AVSS | Ground / Analog ground | Dedicated analog ground plane minimizes quantization error in 10-bit ADC measurements. |
| RESET | Active-low reset input | Asynchronous hard reset; initiates boot sequence and clears all registers and peripherals. |
| XIN / XOUT | External crystal oscillator interface | Supports up to 20 MHz crystal for precise timing-critical applications like motor phase control. |
| XCIN / XCOUT | 32 kHz crystal interface | Enables accurate real-time clock (RTC) and ultra-low-power wake-up from stop mode. |
| P0_0–P0_7 | CMOS I/O port with analog functions | AN0–AN7, DA0/DA1, TREO, TRCIOx - configurable as GPIO, ADC inputs, DAC outputs, or timer I/O for flexible peripheral routing. |
| INT0–INT4 | External interrupt inputs | Edge-triggered interrupts for emergency stop, encoder zero-crossing, or key press detection. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds while CPU executes main application - eliminates runtime stalls during firmware updates. |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via Timer RA and UART0 - reduces external component count and simplifies compliance testing for appliance sub-systems. |
| Multi-Source DTC | 1-channel Data Transfer Controller with 33 activation sources - offloads CPU from ADC sampling, UART buffering, and timer capture transfers. |
| EMI/EMS Optimized Design | On-chip oscillators, voltage detection, and layout-aware I/O drive strength - meets industrial EMC standards without added shielding or filtering components. |
| Program Security | ROM code protect and ID code check - prevents unauthorized firmware extraction in OEM white-label appliances. |
Applications
| Motor Control Subsystem | Smart Appliance HMI |
|---|---|
Use Scenario: Brushless DC motor commutation in washing machine drum drives using six-step or sinusoidal PWM. IC Role / Device Role / Timing Role: Primary MCU executing FOC algorithms, generating complementary PWM waveforms via Timer RD, reading hall sensors via P1_0–P1_3, and managing current sensing via ADC channels AN8–AN11. Use Value: Integrated 6-pin complementary PWM with triangular/sawtooth modulation eliminates need for external gate drivers and reduces BOM cost by 12%. |
Use Scenario: Touch-key interface and display backlight control in refrigerator control panels. IC Role / Device Role / Timing Role: Key input interrupt handler (KI0–KI3), PWM dimming controller (Timer RB), and UART0-based serial display driver. Use Value: Hardware key scan with debounce and programmable waveform generation enable responsive UI with <10 ms latency and no CPU polling overhead. |
| Industrial Sensor Node | Factory Automation I/O Module |
Use Scenario: Temperature/humidity data logger with local storage and RS-485 uplink in warehouse monitoring systems. IC Role / Device Role / Timing Role: ADC acquisition engine (12-channel sweep mode), RTC timestamping (Timer RE), UART2 RS-485 transceiver interface, and data flash logging buffer. Use Value: Background flash writes allow continuous sensor sampling at 100 Hz while storing timestamps and values - no data loss during write cycles. |
Use Scenario: DIN-rail mounted digital I/O expansion unit with isolated inputs and relay outputs. IC Role / Device Role / Timing Role: Isolated input debouncing via INT0–INT4, relay timing via Timer RA period mode, and Modbus RTU over UART1. Use Value: 47 high-current drive ports directly sink/source 20 mA - eliminates external transistor arrays for LED status indicators and small solenoid drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21354CNFP | N version: operating temperature –20°C to +85°C; identical memory, peripherals, and pinout. | Suitable for commercial indoor appliances (e.g., coffee makers, air purifiers) without extended thermal requirements. | Select when ambient conditions remain above –20°C and cost sensitivity outweighs industrial qualification needs. |
| R5F21355CDFP | D version with 24 KB program ROM, 2 KB RAM, same 52-pin LQFP package and peripheral set. | Required for firmware with larger protocol stacks (e.g., full Modbus TCP offload) or complex UI assets in industrial HMIs. | Choose when application code size exceeds 16 KB and backward-compatible pinout is mandatory for board reuse. |
Compared with R5F21354CNFP, the R5F21354CDFP#30 adds –40°C startup reliability and wider supply tolerance; compared with R5F21355CDFP, it trades 8 KB ROM and 512 B RAM for lower cost and reduced flash wear in stable-functionality deployments.
Availability
R5F21354CDFP#30 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance HMI, and factory automation I/O modules requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for R5F21354CDFP#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 IoT markets.
The R8C/35C Group is designed for cost-sensitive, high-reliability embedded control in consumer and industrial appliances - emphasizing EMI resilience, integrated analog peripherals, and low-power operation without sacrificing real-time responsiveness.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R5F21354CDFP#30?
The R5F21354CDFP#30 achieves a maximum operating frequency of 20 MHz when supplied at 2.7–5.5 V. At lower voltages (1.8–5.5 V), the maximum supported frequency drops to 5 MHz per Renesas specification R01DS0006EJ0100. This dual-voltage/frequency scaling allows design flexibility across battery-powered and line-powered applications while maintaining deterministic 50 ns instruction timing at full speed.
Does the R5F21354CDFP#30 support in-system programming (ISP) and debug interfaces?
Yes, the R5F21354CDFP#30 includes on-chip debug capability and supports on-board flash rewrite via dedicated debug pins. It does not require external programming hardware beyond a standard Renesas E8/E8a emulator or compatible JTAG/SWD adapter. The device also implements ROM code protection and ID code verification to prevent unauthorized firmware access during field updates.
How many independent PWM output channels does the R5F21354CDFP#30 provide, and what advanced modes are supported?
The R5F21354CDFP#30 provides up to 6 independent PWM output channels via Timer RD in standard PWM mode, plus complementary PWM, reset-synchronous PWM, and PWM3 modes. These enable three-phase motor drive waveforms with dead-time insertion, synchronized switching for power converters, and fixed-period dual-output control - all without CPU intervention using hardware trigger chaining.
Can the R5F21354CDFP#30 operate from a 32 kHz watch crystal while maintaining full peripheral functionality?
Yes, the R5F21354CDFP#30 supports operation from the 32 kHz XCIN/XCOUT crystal in wait mode, where the CPU halts but peripherals including Timer RE (RTC), ADC, and UART continue functioning. In stop mode, only the low-speed oscillator and RTC remain active - enabling calendar timekeeping and periodic wake-up at µA-level current draw.
What is the purpose and implementation of the Data Transfer Controller (DTC) in the R5F21354CDFP#30?
The DTC in the R5F21354CDFP#30 is a single-channel DMA-like controller that autonomously transfers data between memory and peripherals (e.g., ADC result registers → RAM, UART transmit buffer → TX shift register) upon 33 possible activation sources. It eliminates CPU overhead during high-frequency sampling or serial streaming, improving real-time determinism and reducing average current consumption by up to 18% in data-intensive tasks.
R5F21354CDFP#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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1.5K 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:
R5F21354CDFP#30 FAQ
1.How can I place an order for R5F21354CDFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21354CDFP#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 R5F21354CDFP#30 reliable?
The price and inventory of R5F21354CDFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21354CDFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21354CDFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21354CDFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21354CDFP#30?
R5F21354CDFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21354CDFP#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 R5F21354CDFP#30?
For technical support, including R5F21354CDFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21354CDFP#30 requirements.
6.How does Aetrix verify that R5F21354CDFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21354CDFP#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 R5F21354CDFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21354CDFP#30?
All R5F21354CDFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21354CDFP#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 R5F21354CDFP#30 part is unused and in its original packaging.
Return procedure for R5F21354CDFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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