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Renesas R5F21354CNFP#30
- Part No.:
- R5F21354CNFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21354CNFP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,380
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Product details
Overview
R5F21354CNFP#30 from Renesas Electronics is a 16-bit R8C CPU core MCU with 16 KB program ROM, 1.5 KB RAM, and 4 KB data flash (1 KB × 4 blocks), 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, 12-channel 10-bit ADC, dual 8-bit DAC, and six timer modules (RA–RE + RD dual 16-bit), targeting embedded control in consumer audio and office equipment.
For engineers reviewing the R5F21354CNFP#30 datasheet, R5F21354CNFP#30 pinout, R5F21354CNFP#30 application, or R5F21354CNFP#30 equivalent, key selection criteria include its 52-pin LQFP package, -20°C to +85°C N-version temperature grade, background operation (BGO) data flash capability, low-power wait/stop modes (3.5 µA / 2.0 µA), and hardware LIN support via Timer RA and UART0.
Technical Context
The R5F21354CNFP#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 features four independent 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. Peripheral control uses dedicated SFRs mapped to addresses 0000h–002Fh and 02C00h–02FFFh.
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 | 16 KB flash program ROM, 1.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO support |
| Operating Voltage | 1.8–5.5 V; supports 20 MHz operation at ≥2.7 V, 5 MHz at ≥1.8 V |
| Power Consumption | 6.5 mA typical @ 5.0 V/20 MHz; 3.5 µA @ 3.0 V/wait mode (32 kHz); 2.0 µA @ 3.0 V/stop mode |
| Peripherals | UART0/1/2 (I²C-capable), LIN module, 12-channel 10-bit ADC, dual 8-bit DAC, 6 timers (RA–RE + RD) |
| Package & Temp | 52-pin LQFP (PLQP0052JA-A), N-version: -20°C to +85°C ambient operating range |
| Interrupt System | 69 interrupt vectors, 9 external interrupts (INT0–INT4, KI0–KI3), 7 priority levels |
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 | Main and analog power pins; AVCC requires decoupling capacitor to AVSS for ADC/DAC stability |
| VSS / AVSS | Ground reference | Digital and analog ground; separation improves noise immunity for mixed-signal operation |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and registers; internal pull-up enabled |
| XIN / XOUT | External crystal oscillator interface | Supports up to 20 MHz crystal/resonator; XOUT can accept external clock if XIN left open |
| XCIN / XCOUT | 32 kHz real-time clock oscillator interface | Enables low-power RTC operation in wait/stop modes; critical for battery-backed timekeeping |
| P0_0–P0_7 | CMOS I/O port with analog functions | 12 ADC inputs (AN0–AN11), DA0/DA1 outputs, TRCIOx timer I/O, and TREO clock output shared |
| INT0–INT4 | External interrupt inputs | Edge-triggered interrupt sources; INT0 linked to Timer RB/RC/RD for event synchronization |
| UART0 TXD0/RXD0 | Asynchronous serial interface | Full-duplex UART channel with programmable baud rate; supports LIN physical layer via UART0 |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming while CPU executes code - enables seamless firmware updates without halting operation |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support using Timer RA and UART0 - eliminates external LIN transceiver for basic node applications |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 32 kHz) and stop mode (2.0 µA) enable multi-year battery life in portable consumer devices |
| Multi-Source Clock System | Four independent clocks (XIN, XCIN, high-speed/low-speed on-chip) with automatic failover and stop detection - ensures robust timing under voltage or crystal faults |
| Programmable I/O with Pull-Up | All 47 CMOS I/O pins support software-selectable pull-up resistors - simplifies button interface and bus termination without external components |
Applications
| Audio Equipment Control | Office Equipment Motor Control |
|---|---|
|
Use Scenario: Volume, tone, and source selection logic in compact stereo receivers and Bluetooth speakers. IC Role / Device Role / Timing Role: Main system controller executing UI state machine, ADC-based potentiometer reading, and DAC-driven headphone amplifier bias control. Use Value: Integrated 12-channel ADC and dual DAC eliminate external signal conditioning ICs; BGO enables silent firmware updates during playback. |
Use Scenario: Paper feed, scanning head motion, and document jam detection in multifunction printers. IC Role / Device Role / Timing Role: Real-time motor sequencer using Timer RD's complementary PWM mode for three-phase stepper drive and RE timer for precise interval timing. Use Value: Six independent timers with capture/compare and PWM2/PWM3 modes reduce need for external timing ICs or FPGA logic. |
| Consumer Appliance UI | Home Automation Sensor Hub |
|
Use Scenario: Keypad scanning, display backlight dimming, and temperature monitoring in microwave ovens and washing machines. IC Role / Device Role / Timing Role: Embedded controller managing KI0–KI3 key interrupts, PWM-driven LED dimming (Timer RB), and 10-bit ADC thermal sensing. Use Value: Dedicated key-input interrupt circuitry with debounce support lowers firmware overhead; 1.8 V operation extends compatibility with low-voltage power rails. |
Use Scenario: Aggregating PIR, ambient light, and humidity sensor data for smart lighting and HVAC control. IC Role / Device Role / Timing Role: Low-power sensor concentrator using stop mode between readings, XCIN-driven RTC for scheduled wake-up, and UART2/I²C for sensor communication. Use Value: 2.0 µA stop-mode current and integrated I²C/UART2 allow direct connection to digital sensors without level-shifting or external wake logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21355CNFP#30 | 24 KB program ROM, 2 KB RAM - +8 KB ROM/+0.5 KB RAM vs. R5F21354CNFP#30 | Required for larger firmware images or additional bootloader space; identical peripheral set and pinout | Select when application firmware exceeds 16 KB or requires extended data logging buffer in RAM |
| R5F21354CDFP#30 | D-version: -40°C to +85°C operating range; same memory, peripherals, and package | Necessary for industrial or automotive-adjacent environments where extended temperature tolerance is mandated | Choose for deployments outside commercial temperature range; no PCB or firmware changes required |
Compared with R5F21354CNFP#30, R5F21355CNFP#30 offers expanded code storage for feature-rich firmware, while R5F21354CDFP#30 provides guaranteed operation down to -40°C - both retain identical peripheral functionality, 52-pin LQFP footprint, and BGO data flash capability.
Availability
R5F21354CNFP#30 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor sequencing, consumer appliance UI, and home automation sensor hub applications requiring stable component supply across long-lifecycle consumer programs.
Supply support for R5F21354CNFP#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 R5F21354CNFP#30, was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integration of analog peripherals, robust clocking, and firmware update flexibility via BGO.
FAQ
What is the maximum operating frequency and voltage range for the R5F21354CNFP#30?
The R5F21354CNFP#30 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation (5 MHz) down to 1.8 V. This dual-voltage/frequency capability allows design flexibility across battery-powered and line-powered consumer devices while maintaining deterministic 50 ns instruction timing at full speed.
Does the R5F21354CNFP#30 support in-system programming and firmware updates without halting execution?
Yes, the R5F21354CNFP#30 supports Background Operation (BGO) for its 4 KB data flash (1 KB × 4 blocks), enabling erase and program operations while the CPU continues executing code from program ROM. This capability is essential for field-upgradable firmware in audio and appliance applications where uninterrupted operation is required.
How many analog-to-digital converter channels does the R5F21354CNFP#30 include, and what is their resolution?
The R5F21354CNFP#30 integrates a single 10-bit successive-approximation ADC with 12 input channels (AN0–AN11). It supports sample-and-hold, sweep mode for sequential conversion, and external trigger (ADTRG) for synchronized sampling - suitable for thermal sensing, potentiometer reading, and power supply monitoring in consumer systems.
What peripheral interfaces are available on the R5F21354CNFP#30 for connecting to sensors and displays?
The R5F21354CNFP#30 provides UART0/1/2 (with I²C-bus mode on UART2), an independent I²C bus interface (shared with SSU), and synchronous serial I/O - enabling direct connection to temperature/humidity sensors (I²C), OLED displays (UART), and legacy peripherals. Its 47 programmable CMOS I/O pins further support GPIO, PWM, and interrupt-driven interfaces.
Is the R5F21354CNFP#30 pin-compatible with other members of the R8C/35C Group?
Yes, all R8C/35C Group MCUs - including R5F21354CNFP#30, R5F21355CNFP#30, and R5F21354CDFP#30 - share the identical 52-pin LQFP (PLQP0052JA-A) package and pin assignment. Firmware and PCB designs are interchangeable across the group, differing only in memory size, temperature grade, or minor SFR initialization defaults.
R5F21354CNFP#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:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21354CNFP#30 FAQ
1.How can I place an order for R5F21354CNFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21354CNFP#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 R5F21354CNFP#30 reliable?
The price and inventory of R5F21354CNFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21354CNFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21354CNFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21354CNFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21354CNFP#30?
R5F21354CNFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21354CNFP#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 R5F21354CNFP#30?
For technical support, including R5F21354CNFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21354CNFP#30 requirements.
6.How does Aetrix verify that R5F21354CNFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21354CNFP#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 R5F21354CNFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21354CNFP#30?
All R5F21354CNFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21354CNFP#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 R5F21354CNFP#30 part is unused and in its original packaging.
Return procedure for R5F21354CNFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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