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Renesas R5F21354DNFP#V0
- Part No.:
- R5F21354DNFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F21354DNFP#V0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:609
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Product details
Overview
R5F21354DNFP#V0 from Renesas is a 16-bit R8C CPU core MCU with 16 KB Flash, 1 KB RAM, 52-pin LQFP package, and operating temperature range of –20°C to +85°C; supports UART0/UART2 (with I²C mode), 10-bit ×12-channel ADC, four 8-/16-bit timers, real-time clock, and voltage detection - used in consumer audio equipment and office automation control systems.
For engineers reviewing the R5F21354DNFP#V0 datasheet, R5F21354DNFP#V0 pinout, R5F21354DNFP#V0 application, or R5F21354DNFP#V0 equivalent, key selection criteria include Flash size (16 KB), operating voltage (1.8–5.5 V), low-power wait/stop modes (3.5 µA / 2.0 µA), integrated A/D converter resolution and channel count, and UART2's dual-mode I²C/UART capability.
Technical Context
The R5F21354DNFP#V0 implements the R8C CPU core with 89 fundamental instructions and hardware multiplier (16×16→32-bit), enabling efficient signal processing in resource-constrained embedded applications. Its memory map allocates 1 Mbyte address space, with fixed interrupt vector table at 0FFDCh–0FFFFh and internal RAM at 00400h–007FFh.
It integrates four independent timer modules (RA, RB, RC, RE) supporting PWM generation, input capture, real-time clock, and event counting, plus dual serial interfaces: UART0 (basic asynchronous) and UART2 (clock-synchronous, I²C-bus compatible, multiprocessor support).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions and 16×16→32-bit hardware multiplier for deterministic math-intensive tasks |
| Flash / RAM | 16 KB Flash (1,000 write/erase cycles) and 1 KB RAM - sufficient for mid-complexity firmware with data buffering |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 3.3 V or 5 V logic and battery-powered operation down to 1.8 V |
| ADC | 10-bit resolution × 12 channels with sample-and-hold and sweep mode - supports multi-sensor analog monitoring without external mux |
| Timers | Timer RA (8-bit), RB (8-bit PWM), RC (16-bit with 4 compare/capture registers), RE (8-bit RTC) - full timing subsystem for motor control, power management, and timekeeping |
| Serial Interfaces | UART0 (asynchronous), UART2 (synchronous/I²C/multiprocessor) - dual-protocol connectivity for sensor networks and peripheral bridging |
| Power Modes | Standard, wait (3.5 µA @ 3.0 V, 32 kHz), stop (2.0 µA @ 3.0 V) - optimized for intermittent sensing and ultra-low-quiescent battery systems |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm body, 0.65 mm pitch - standard surface-mount footprint compatible with automated assembly and thermal management in compact consumer enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 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 total) | Programmable direction per pin; pull-up resistor selectable in software; all support LED drive - simplifies UI and status indication |
| XIN / XOUT | External crystal oscillator input/output | Supports 20 MHz high-speed system clock (50 ns min instruction time) or lower-frequency crystals for precision timing |
| XCIN / XCOUT | 32 kHz crystal oscillator input/output | Enables low-power real-time clock operation during stop/wait modes - critical for battery-backed timekeeping |
| RESET | Active-low reset input | Hardware reset initiation; complements internal power-on reset and voltage-detection reset for robust boot reliability |
| MODE | Boot mode select | Must be tied to VCC via resistor to enable single-chip operation - defines startup configuration and memory mapping |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug & flash rewrite | Enables field firmware updates and in-circuit debugging without external emulator - reduces development and maintenance cost |
| Voltage detection circuit | Dual-level detection (VDD monitor + programmable threshold) with power-on reset - prevents erratic operation during brown-out conditions |
| Real-time clock (Timer RE) | Counts seconds/minutes/hours/days-of-week autonomously using 32 kHz sub-clock - eliminates need for external RTC IC |
| Comparator B (2 circuits) | Independent analog comparators with programmable reference inputs - supports zero-crossing detection and threshold-triggered wake-up |
| High-current I/O ports | All 47 CMOS I/O pins support high-drive capability - directly drives LEDs, relays, or small solenoids without external drivers |
Applications
| Audio Equipment Control | Office Equipment Motor Control |
|---|---|
Use Scenario: Microcontroller-based volume, tone, and source selection in portable audio receivers and docking stations. IC Role / Device Role / Timing Role: Main system controller executing user interface logic, ADC-based potentiometer reading, and UART-driven display updates. Use Value: Integrated 12-channel ADC reads multiple analog controls simultaneously; UART2 I²C mode communicates with OLED display and EEPROM storage. | Use Scenario: Paper feed, jam detection, and stepper motor sequencing in compact multifunction printers. IC Role / Device Role / Timing Role: Real-time motion coordinator using Timer RB PWM outputs and Timer RC input capture for encoder feedback. Use Value: 16-bit Timer RC with 4 capture registers enables precise position tracking; low-power stop mode extends standby battery life. |
| Consumer Appliance UI | Home Automation Sensor Hub |
Use Scenario: Touch-key scanning, LED backlight dimming, and temperature monitoring in microwave ovens and induction cooktops. IC Role / Device Role / Timing Role: Human-machine interface processor managing key interrupts (KI0–KI3), PWM-driven LED brightness, and ADC-sensed thermistor inputs. Use Value: Key input interrupt with debounce support reduces firmware overhead; 10-bit ADC resolves <1°C thermal changes across 12 sensors. | Use Scenario: Aggregating data from PIR, ambient light, and humidity sensors before forwarding via UART to gateway module. IC Role / Device Role / Timing Role: Low-power sensor concentrator using wait mode between periodic ADC sweeps and UART2 I²C polling of local sensors. Use Value: 3.5 µA wait current at 32 kHz enables >1-year coin-cell operation; UART2 I²C mode interfaces directly with digital environmental sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21355DNFP | 24 KB Flash, same RAM, identical pinout and peripherals | Supports larger firmware images (e.g., added USB stack or OTA update logic) | Select when firmware exceeds 16 KB but no hardware change is desired |
| R5F21354DDFP | Same Flash/RAM, extended temp range (–40°C to +85°C), D version | Required for industrial or automotive-adjacent environments with wider thermal cycling | Select when operating ambient exceeds –20°C minimum or requires AEC-Q200-aligned qualification |
Compared with R5F21355DNFP and R5F21354DDFP, the R5F21354DNFP#V0 provides optimal cost/performance balance for commercial-grade consumer devices where 16 KB Flash suffices and –20°C minimum operation is acceptable.
Availability
R5F21354DNFP#V0 is available at Aetrix Electronics and suitable for audio equipment control, office automation motor sequencing, and consumer appliance UI requiring stable component supply and long-term production continuity.
Supply support for R5F21354DNFP#V0 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The R8C/35D Group is designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integration of analog peripherals (ADC, comparators), multiple timing resources, and flexible communication interfaces in compact LQFP packages.
FAQ
What is the maximum operating frequency and corresponding supply voltage for the R5F21354DNFP#V0?
The R5F21354DNFP#V0 operates at up to 20 MHz when supplied with 2.7–5.5 V, achieving a minimum instruction execution time of 50 ns. At reduced voltage (1.8–5.5 V), it supports 5 MHz operation with 200 ns minimum instruction time - enabling flexible power/performance trade-offs in battery-powered designs.
Does the R5F21354DNFP#V0 support I²C communication, and if so, which peripheral implements it?
Yes, the R5F21354DNFP#V0 supports I²C communication via UART2 configured in I²C-bus mode. This is implemented in hardware within the UART2 module, allowing standard I²C protocol handling (start/stop, ACK/NACK, clock stretching) without CPU intervention - confirmed in Section 1.1.2 and Table 1.1 of the datasheet.
What are the low-power consumption figures for the R5F21354DNFP#V0 in wait and stop modes?
In wait mode with 32 kHz XCIN clock active, the R5F21354DNFP#V0 consumes typ. 3.5 µA at 3.0 V; in stop mode, it draws typ. 2.0 µA at 3.0 V. These values are measured under specified conditions (VCC = 3.0 V, ambient temperature) and reflect true ultra-low-power capability for battery-backed applications.
How many analog input channels does the integrated A/D converter in the R5F21354DNFP#V0 support?
The R5F21354DNFP#V0 integrates a 10-bit successive-approximation A/D converter with 12 dedicated analog input channels (AN0–AN11), plus sample-and-hold and hardware sweep mode - enabling simultaneous multi-sensor acquisition without external multiplexing.
Is on-chip debug functionality available for the R5F21354DNFP#V0, and what does it support?
Yes, the R5F21354DNFP#V0 includes on-chip debug functionality supporting real-time program execution control, register and memory inspection, and on-board flash rewrite - eliminating need for external debug probes and enabling firmware updates in deployed units.
R5F21354DNFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- R8C/3x/35D
- Packaging:
- Bulk
- 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:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21354DNFP#V0 FAQ
1.How can I place an order for R5F21354DNFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21354DNFP#V0 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 R5F21354DNFP#V0 reliable?
The price and inventory of R5F21354DNFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21354DNFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F21354DNFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21354DNFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21354DNFP#V0?
R5F21354DNFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21354DNFP#V0 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 R5F21354DNFP#V0?
For technical support, including R5F21354DNFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21354DNFP#V0 requirements.
6.How does Aetrix verify that R5F21354DNFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F21354DNFP#V0 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 R5F21354DNFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F21354DNFP#V0?
All R5F21354DNFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21354DNFP#V0, 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 R5F21354DNFP#V0 part is unused and in its original packaging.
Return procedure for R5F21354DNFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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