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Renesas R5F21354DDFP#30
- Part No.:
- R5F21354DDFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21354DDFP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,458
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Product details
Overview
R5F21354DDFP#30 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 16 KB Flash ROM, 1 KB RAM, and 52-pin LQFP package (PLQP0052JA-A), operating from -40°C to +85°C. It integrates UART0/UART2 (with I²C mode), 10-bit 12-channel ADC, four 8-/16-bit timers, watchdog timer, voltage detection, and on-chip oscillators (high-speed adjustable and 32 kHz low-speed). It targets cost-sensitive, low-power embedded control in consumer audio and home appliances.
For engineers reviewing the R5F21354DDFP#30 datasheet, R5F21354DDFP#30 pinout, R5F21354DDFP#30 application, or R5F21354DDFP#30 equivalent, this page delivers verified specifications, validated pin functions, real-world use cases for appliance motor control and sensor interface, and two confirmed alternative parts with documented functional and thermal differences.
Technical Context
The R5F21354DDFP#30 implements the R8C CPU core with 89 fundamental instructions and hardware multiplier (16×16→32-bit), enabling efficient signal processing in resource-constrained systems. Its memory map allocates 1 Mbyte address space, with fixed interrupt vector table at 0FFDCh–0FFFFh and internal RAM at 00400h–007FFh.
Peripheral integration includes dual UARTs (UART2 supporting I²C-bus protocol), Timer RC with 4 capture/compare registers and PWM2 output, and A/D converter with sample-and-hold and sweep mode-enabling synchronized analog acquisition and precise timing-critical control loops without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions; executes in 50 ns @ 20 MHz (VCC = 2.7–5.5 V) |
| Memory | 16 KB Flash ROM (1,000 erase/write cycles), 1 KB RAM; supports on-chip debug and flash rewrite |
| Operating Temp | -40°C to +85°C (D version); enables deployment in industrial-grade consumer equipment enclosures |
| Power Consumption | Typ. 6.5 mA @ 5.0 V/20 MHz; 2.0 µA in stop mode - extends battery life in always-on subsystems |
| ADC | 10-bit resolution, 12 channels, sample-and-hold, sweep mode - captures multi-sensor data in single trigger sequence |
| Timers | Timer RA/RB (8-bit ×2), Timer RC (16-bit ×1 w/4 registers), Timer RE (real-time clock) - supports PWM generation, input capture, and calendar timekeeping |
| Serial Interfaces | UART0 (async), UART2 (async + clock-sync + I²C-bus mode) - enables legacy RS-232, sensor bus communication, and multi-drop control |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | CMOS I/O port with AN0–AN7 | Configurable as analog inputs (ADC channels 0–7) or digital I/O with pull-up enable |
| P1_0–P1_7 | CMOS I/O port with AN8–AN11, KI0–KI3 | Supports key scan (4-key interrupt) and additional ADC inputs (channels 8–11) |
| P2_0–P2_7 | CMOS I/O port | General-purpose I/O; P2_0 doubles as INT1, P2_2–P2_3 support TRCIOD/TRCIOC for Timer RC |
| P3_0–P3_7 | CMOS I/O port with UART2 signals | P3_3–P3_5 provide CTS2/RTS2/CLK2; P3_4/P3_7 support SCL2/SDA2 for I²C-bus operation |
| XIN/XOUT | External crystal oscillator input/output | Drives 20 MHz main system clock; supports ceramic resonator or crystal up to 20 MHz |
| XCIN/XCOUT | 32 kHz sub-clock oscillator input/output | Feeds Timer RE real-time clock and low-power wait/stop modes independently of main clock |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and SFRs; debounced externally for noise immunity |
| MODE | Boot mode select | Connected to VCC via resistor to enter normal single-chip operation; required for flash programming entry |
Key Features
| Feature | Design Value |
|---|---|
| High-speed on-chip oscillator | Frequency-adjustable 20 MHz oscillator eliminates need for external crystal in non-precision timing applications |
| Voltage detection circuit | Configurable detection levels (VDD monitor + VDET0/VDET1) enable safe brown-out reset and power-fail warning |
| Low EMI/EMS design | Optimized internal routing and clock gating reduce radiated emissions - simplifies EMC compliance in compact enclosures |
| Multi-function timer RC | Four independent capture/compare registers allow simultaneous PWM output on 3 pins plus pulse-width measurement on 2 inputs |
| On-chip debug interface | Full ICE-capable debug with flash rewrite support enables in-system firmware updates without removing MCU |
Applications
| Audio System Control | Smart Appliance Motor Interface |
|---|---|
|
Use Scenario: Digital audio receiver managing volume, source selection, and LED display in compact stereo systems. IC Role / Device Role / Timing Role: Main system controller executing UI logic, decoding IR commands, driving 7-segment LEDs, and synchronizing DAC clocks via UART2 I²C-bus. Use Value: Integrated UART2 I²C mode replaces external level-shifter; 10-bit ADC reads potentiometer position for smooth volume ramping. |
Use Scenario: Washing machine drum motor controller with speed sensing, temperature monitoring, and water-level feedback. IC Role / Device Role / Timing Role: Real-time motor phase commutation using Timer RC PWM outputs, while Timer RE tracks cycle duration and ADC monitors NTC thermistors. Use Value: 16-bit Timer RC with 4 compare registers enables precise 3-phase gate drive timing; -40°C rating ensures reliability in humid laundry environments. |
| Office Equipment Power Management | Consumer IoT Sensor Hub |
|
Use Scenario: Standby power supervisor in multifunction printers, monitoring line voltage and controlling sleep/wake transitions. IC Role / Device Role / Timing Role: Low-power manager using stop mode (2.0 µA) and XCIN-based Timer RE to wake every 30 seconds for voltage sampling. Use Value: Dual oscillator architecture (XIN + XCIN) allows high-speed processing only when needed - cuts average power by >95% vs. continuous operation. |
Use Scenario: Battery-powered air quality monitor aggregating PM2.5, CO₂, and humidity data before BLE transmission. IC Role / Device Role / Timing Role: Sensor fusion hub using ADC sweep mode to read 12 analog sensors sequentially, then UART0 to forward data to host MCU. Use Value: 12-channel ADC with sample-and-hold eliminates external multiplexer; 1 KB RAM buffers full sensor dataset before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21354DNFP | Same core, Flash, RAM, and peripherals; rated for -20°C to +85°C (N version) | Limited to indoor consumer devices without extended thermal requirements | Select when ambient temperature stays above -20°C and cost sensitivity outweighs industrial temp margin |
| R5F21355DDFP | 24 KB Flash (vs. 16 KB), same RAM, package, and D-temp rating; identical peripheral set | Enables larger firmware images with bootloader, OTA update stack, or enhanced UI assets | Choose when firmware size exceeds 16 KB or future feature expansion requires headroom |
Compared with R5F21354DDFP#30, the R5F21354DNFP offers lower cost but reduced thermal margin, while the R5F21355DDFP provides 8 KB more Flash for complex control algorithms - both retain identical pinout, peripherals, and debug capability.
Availability
R5F21354DDFP#30 is available at Aetrix Electronics and suitable for audio system control, smart appliance motor interface, and office equipment power management requiring stable component supply across long production lifecycles.
Supply support for R5F21354DDFP#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, and power solutions for automotive, industrial, and consumer markets.
The R8C/35D Group, including R5F21354DDFP#30, was designed for cost-optimized, low-power embedded control in consumer electronics - balancing performance, integration, and thermal robustness without external support ICs.
FAQ
What is the maximum operating frequency of the R5F21354DDFP#30?
The R5F21354DDFP#30 supports a maximum operating frequency of 20 MHz when powered at 2.7–5.5 V, achieving a minimum instruction execution time of 50 ns. At lower supply voltages (1.8–5.5 V), it operates up to 5 MHz with 200 ns instruction timing - ensuring deterministic real-time response across its full voltage range.
Does the R5F21354DDFP#30 support I²C-bus communication?
Yes, the R5F21354DDFP#30 supports I²C-bus communication through UART2's dedicated I²C mode. Pins P3_4 (SCL2) and P3_7 (SDA2) are configured as open-drain I²C-bus lines with internal pull-up control, enabling direct connection to standard I²C sensors and EEPROMs without external level shifters.
What is the purpose of the XCIN/XCOUT pins on the R5F21354DDFP#30?
The XCIN/XCOUT pins on the R5F21354DDFP#30 connect to a 32.768 kHz crystal to drive the low-speed sub-clock oscillator. This dedicated clock source powers Timer RE for real-time clock functions and enables ultra-low-power wait/stop modes (down to 2.0 µA), allowing accurate timekeeping and periodic wake-up independent of the main 20 MHz system clock.
How many analog input channels does the R5F21354DDFP#30 ADC support?
The R5F21354DDFP#30 integrates a 10-bit successive-approximation ADC with 12 analog input channels (AN0–AN11), mapped across P0_0–P0_7 and P1_0–P1_3. It includes sample-and-hold circuitry and sweep mode - enabling automatic sequential conversion of all 12 channels triggered by a single software or timer event.
Is the R5F21354DDFP#30 pin-compatible with other R8C/35D Group MCUs?
Yes, the R5F21354DDFP#30 shares the identical 52-pin LQFP (PLQP0052JA-A) package and pin assignment with all R8C/35D Group variants, including R5F21355DDFP and R5F21356DDFP. Peripheral signal mapping, power/ground pin locations, and reset/boot configuration are fully consistent - enabling drop-in replacement within the same package footprint.
R5F21354DDFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35D
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, 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:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21354DDFP#30 FAQ
1.How can I place an order for R5F21354DDFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21354DDFP#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 R5F21354DDFP#30 reliable?
The price and inventory of R5F21354DDFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21354DDFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21354DDFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21354DDFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21354DDFP#30?
R5F21354DDFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21354DDFP#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 R5F21354DDFP#30?
For technical support, including R5F21354DDFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21354DDFP#30 requirements.
6.How does Aetrix verify that R5F21354DDFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21354DDFP#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 R5F21354DDFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21354DDFP#30?
All R5F21354DDFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21354DDFP#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 R5F21354DDFP#30 part is unused and in its original packaging.
Return procedure for R5F21354DDFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21354DDFP#30 Tags
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