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Renesas R5F21355DNFP#30
- Part No.:
- R5F21355DNFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21355DNFP#30.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,374
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Product details
Overview
R5F21355DNFP#30 from Renesas is a 16-bit R8C CPU core microcontroller with 24 KB flash ROM, 1 KB RAM, 52-pin LQFP package, and operating temperature range of –20°C to +85°C. It integrates timer RA/RB/RC/RE, dual UART (UART0/UART2 with I²C mode), 10-bit 12-channel ADC, voltage detection, and on-chip oscillators for embedded control in consumer appliances and office equipment.
For engineers reviewing the R5F21355DNFP#30 datasheet, R5F21355DNFP#30 pinout, R5F21355DNFP#30 application, or R5F21355DNFP#30 equivalent, key selection criteria include flash size (24 KB), 52-pin PLQP0052JA-A package compatibility, real-time clock (Timer RE), dual serial interface capability (UART + I²C), and low-power stop/wait modes with µA-level current consumption.
Technical Context
The R5F21355DNFP#30 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and 20-bit address space supporting 1 Mbyte memory mapping. Its interrupt system delivers 69 vectors across 9 external sources (INT0–INT4, KI0–KI3) with 7 priority levels and configurable edge-triggered inputs.
Peripheral integration includes four independent timers (RA: 8-bit period/PWM; RB: 8-bit PWM/one-shot; RC: 16-bit capture/compare/PWM2; RE: 8-bit real-time clock), dual UARTs with programmable baud rates and I²C-bus support on UART2, and a 10-bit ADC with sweep mode and sample-and-hold across 12 analog inputs.
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, 16×16→32-bit multiplier |
| Memory | 24 KB flash ROM (1,000 write/erase cycles), 1 KB RAM, 1 Mbyte address space (00000h–FFFFFh) |
| Operating Voltage | 1.8 V to 5.5 V supply; supports 20 MHz operation at ≥2.7 V, 5 MHz at ≥1.8 V |
| Power Consumption | 6.5 mA typical at 5.0 V/20 MHz; 3.5 µA in wait mode (32 kHz XCIN); 2.0 µA in stop mode |
| Peripherals | UART0 + UART2 (I²C-capable), 10-bit 12-channel ADC, 4 timers (RA/RB/RC/RE), 2 comparator B circuits, voltage detection |
| Package & Temp | 52-pin LQFP (PLQP0052JA-A, 10 mm × 10 mm, 0.65 mm pitch), –20°C to +85°C ambient |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pin pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC | Power supply input / Analog reference | VCC: 1.8–5.5 V digital supply; AVCC: dedicated analog supply with decoupling capacitor required |
| VSS / AVSS | Ground return / Analog ground | VSS: digital ground; AVSS: isolated analog ground referenced to AVCC for ADC accuracy |
| RESET | Active-low reset input | Asynchronous reset assertion halts CPU and initializes SFRs; requires external pull-up |
| XIN / XOUT | High-frequency crystal oscillator interface | Supports 20 MHz ceramic resonator or crystal; XIN = input, XOUT = output; enables high-speed system clock |
| XCIN / XCOUT | 32 kHz low-frequency crystal interface | Drives Timer RE real-time clock and watchdog timer; enables µA-level low-power modes |
| P0_0–P0_7, P1_0–P1_7, P2_0–P2_7, P3_0–P3_7, P4_3–P4_7, P5_6/P5_7, P6_0–P6_7 | CMOS I/O ports | 47 programmable CMOS I/O pins with software-selectable pull-up resistors and high-current drive capability |
| AN0–AN11 | Analog input channels | 12 dedicated ADC inputs with internal multiplexer; support sweep mode and external trigger (ADTRG) |
| UART0/UART2 signals (TXD0/RXD0, TXD2/RXD2/SCL2/SDA2) | Serial communication interfaces | UART0: full-duplex async; UART2: async + clock-sync + I²C-bus master/slave + multiprocessor mode |
Key Features
| Feature | Design Value |
|---|---|
| Real-time clock (Timer RE) | 8-bit counter with seconds/minutes/hours/days-of-week registers and output compare for alarm generation |
| Dual UART with I²C mode | UART2 supports full I²C-bus protocol (SCL2/SDA2) enabling direct connection to sensors and EEPROMs without external bridge |
| Hardware multiplier | 16×16→32-bit multiply and multiply-accumulate (MAC) accelerate motor control and signal processing loops |
| Low-power operating modes | Stop mode (2.0 µA) and wait mode (3.5 µA @ 32 kHz) enable battery-powered operation for >1 year in intermittent-sensing applications |
| Voltage detection circuit | Configurable voltage monitor with power-on reset and selectable detection levels (VDD or internal reference) |
Applications
| Home Appliance Control | Office Equipment Interface |
|---|---|
|
Use Scenario: Microcontroller in washing machine main board managing motor drive, water valve timing, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing real-time wash cycle logic, ADC monitoring of temperature/pressure sensors, and UART communication with display module. Use Value: 24 KB flash accommodates complex state-machine firmware; 12-channel ADC reads multiple analog sensors; low-power stop mode extends standby battery life. |
Use Scenario: Embedded controller in multifunction printer handling paper feed, toner sensing, and USB-to-parallel bridge logic. IC Role / Device Role / Timing Role: Peripheral coordinator interfacing stepper motors, optical encoders, and status LEDs via GPIO and PWM outputs. Use Value: Dual UART enables simultaneous host PC communication (UART0) and internal sensor bus (UART2/I²C); 47 I/O pins support dense peripheral connectivity. |
| Audio System Management | Consumer Remote Control Hub |
|
Use Scenario: Audio amplifier subsystem controlling volume, input selection, and thermal protection in AV receivers. IC Role / Device Role / Timing Role: Dedicated audio subsystem MCU managing DAC configuration, thermal shutdown via comparator B, and IR remote decoding. Use Value: Comparator B circuits detect overtemperature conditions; UART2 I²C mode configures external audio codecs; 10-bit ADC monitors supply rails and heatsink voltage. |
Use Scenario: Universal remote base station aggregating BLE, IR, and RF signals to control smart home devices. IC Role / Device Role / Timing Role: Protocol translation hub receiving commands via UART/USB and driving IR emitters or RF transceivers using timer-generated carrier waveforms. Use Value: Timer RB programmable waveform generation produces precise 38 kHz IR carrier; 24 KB flash stores multiple device IR code libraries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21354DNFP | 16 KB flash (vs. 24 KB), identical RAM, package, peripherals, and temperature grade | Suitable for simpler firmware with lower memory footprint; no change to PCB or driver stack | Select when application firmware fits within 16 KB and cost sensitivity outweighs future scalability needs |
| R5F21356DNFP | 32 KB flash (vs. 24 KB), identical RAM, package, peripherals, and temperature grade | Enables larger feature sets, OTA update partitions, or safety-certified code separation | Select when firmware growth projection exceeds 24 KB or functional safety requirements demand memory partitioning |
Compared with R5F21354DNFP and R5F21356DNFP, the R5F21355DNFP#30 provides optimal balance of flash capacity and cost for mid-complexity consumer control applications-offering 8 KB more program space than the 16 KB variant while avoiding the premium of the 32 KB part.
Availability
R5F21355DNFP#30 is available at Aetrix Electronics and suitable for home appliance control, office equipment interface, and audio system management requiring stable component supply across multi-year production cycles.
Supply support for R5F21355DNFP#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 automotive, industrial, and consumer markets.
The R8C/35D Group, including R5F21355DNFP#30, was designed for cost-sensitive, low-power embedded control in consumer electronics-emphasizing integration of timers, serial interfaces, and analog functions to minimize external components.
FAQ
What is the maximum operating frequency and voltage range supported by the R5F21355DNFP#30?
The R5F21355DNFP#30 supports a maximum operating frequency of 20 MHz at supply voltages from 2.7 V to 5.5 V. At reduced voltage (1.8 V to 5.5 V), it operates up to 5 MHz. This dual-voltage/frequency capability allows flexible power-performance trade-offs in battery- and line-powered designs. The R5F21355DNFP#30 maintains full peripheral functionality across this entire range.
Does the R5F21355DNFP#30 support I²C communication natively?
Yes, the R5F21355DNFP#30 supports I²C-bus communication through UART2's integrated I²C mode, using dedicated SCL2 and SDA2 pins. This eliminates the need for bit-banged GPIO I²C or external level translators. The R5F21355DNFP#30 can operate as both I²C master and slave, with programmable clock stretching and arbitration handling handled in hardware.
How many analog input channels does the R5F21355DNFP#30 ADC provide, and what is its resolution?
The R5F21355DNFP#30 integrates a 10-bit successive-approximation ADC with 12 dedicated analog input channels (AN0–AN11). It includes sample-and-hold functionality and supports sweep mode for automatic sequential conversion. The ADC accepts input voltages from 0 V to AVCC and features an external trigger input (ADTRG) for synchronized sampling.
What low-power modes are available on the R5F21355DNFP#30, and what are their typical current draws?
The R5F21355DNFP#30 offers wait mode (3.5 µA at 3.0 V with 32 kHz XCIN active) and stop mode (2.0 µA at 3.0 V). Both retain RAM content and allow wake-up via interrupts or external events. These modes leverage the low-speed on-chip oscillator and optimized clock gating. The R5F21355DNFP#30 achieves these figures without external circuitry, simplifying ultra-low-power design.
Is the R5F21355DNFP#30 pin-compatible with other members of the R8C/35D Group?
Yes, all R8C/35D Group MCUs-including R5F21354DNFP, R5F21355DNFP#30, and R5F21356DNFP-share identical 52-pin LQFP (PLQP0052JA-A) packaging and pinout. Firmware and hardware designs are interchangeable across flash variants, enabling seamless scalability during development and production ramp without PCB revision.
R5F21355DNFP#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:
- 24KB (24K 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; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21355DNFP#30 FAQ
1.How can I place an order for R5F21355DNFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21355DNFP#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 R5F21355DNFP#30 reliable?
The price and inventory of R5F21355DNFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21355DNFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21355DNFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21355DNFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21355DNFP#30?
R5F21355DNFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21355DNFP#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 R5F21355DNFP#30?
For technical support, including R5F21355DNFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21355DNFP#30 requirements.
6.How does Aetrix verify that R5F21355DNFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21355DNFP#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 R5F21355DNFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21355DNFP#30?
All R5F21355DNFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21355DNFP#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 R5F21355DNFP#30 part is unused and in its original packaging.
Return procedure for R5F21355DNFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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