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Renesas R5F21334CNFP#V2
- Part No.:
- R5F21334CNFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21334CNFP#V2.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,307
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Product details
Overview
R5F21334CNFP#V2 from Renesas is a 16-bit R8C CPU core MCU with 16 KB flash program ROM, 1.5 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It operates at up to 20 MHz (VCC = 2.7–5.5 V), integrates 10-bit × 12-channel A/D, dual 8-bit D/A converters, LIN hardware module, and real-time clock (Timer RE), targeting embedded control in consumer audio and office equipment.
For engineers reviewing the R5F21334CNFP#V2 datasheet, R5F21334CNFP#V2 pinout, R5F21334CNFP#V2 application, or R5F21334CNFP#V2 equivalent, key selection criteria include its 32-pin LQFP package, -20°C to +85°C N-version temperature grade, integrated LIN transceiver capability via Timer RA and UART0, and BGO-enabled in-system reprogramming of data flash without halting CPU execution.
Technical Context
The R5F21334CNFP#V2 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte (00000h–FFFFFh), with program ROM starting at 0C000h, data flash at 03000h–03FFFh, and RAM at 00400h–009FFh.
Peripheral integration includes three UARTs (UART0/1/2), I²C-bus/SSU shared interface, 16-bit Timer RC with four capture/compare registers and PWM2 mode, and a dedicated LIN module using UART0 and Timer RA. Clock sources comprise XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz), and adjustable high-/low-speed on-chip oscillators.
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 |
| Memory | 16 KB flash program ROM, 1.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO |
| ADC | 10-bit resolution × 12 channels with sample-and-hold and sweep mode |
| DAC | 8-bit resolution × 2 independent output channels (DA0, DA1) |
| Timers | Timer RA (8-bit), RB (8-bit PWM), RC (16-bit with 4 compare/capture registers), RE (real-time clock) |
| Serial Interfaces | UART0/1/2 (UART2 supports I²C mode), SSU/I²C-bus shared, hardware LIN module |
| Operating Range | VCC = 1.8–5.5 V; ambient temperature –20°C to +85°C (N version) |
| Package | 32-pin LQFP (PLQP0032GB-A, 7 mm × 7 mm, 0.8 mm pitch) |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm pin pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7, P1_0–P1_7, P2_0–P2_2, P3_1, P3_3–P3_5, P3_7, P4_5–P4_7 | CMOS I/O port | 27 programmable bidirectional ports with software-selectable pull-up resistors; all support LED drive |
| P4_2 | Input-only port | Dedicated analog reference voltage input (VREF) for A/D and D/A converters |
| XIN/XOUT | External crystal oscillator interface | Supports up to 20 MHz crystal/resonator; enables precise timing and low-jitter system clock |
| XCIN/XCOUT | 32 kHz crystal interface | Drives low-power real-time clock (Timer RE) and watchdog timer independently of main clock |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and registers; debounced externally |
| MODE | Boot mode select | Must be tied to VCC via resistor to enable single-chip operation and internal ROM execution |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash programming/erasure proceeds concurrently with CPU code execution, enabling seamless firmware updates |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via UART0 + Timer RA eliminates external transceiver for automotive body electronics |
| Low-Power Modes | Wait mode (3.5 µA @ 3.0 V, 32 kHz) and stop mode (2.0 µA) extend battery life in portable devices |
| Multi-Source Clock System | Four independent clock sources (XIN, XCIN, high-speed/low-speed on-chip oscillators) allow dynamic clock switching for performance/power trade-offs |
| Real-Time Clock (Timer RE) | Full calendar function (seconds, minutes, hours, weekday) with output compare interrupt for scheduled wake-up events |
| Dual 8-bit DAC Outputs | Independent DA0/DA1 pins provide analog waveform generation or bias control without external DAC ICs |
Applications
| Audio Signal Processing | Office Equipment Control |
|---|---|
Use Scenario: Volume leveling, tone adjustment, and digital audio input conditioning in compact stereo receivers. IC Role / Device Role / Timing Role: Primary controller executing DSP-like routines via R8C CPU, managing ADC sampling, DAC output, and UART-based remote control interface. Use Value: Integrated 10-bit × 12-channel ADC and dual 8-bit DAC eliminate external signal conditioning ICs, reducing BOM count by two components. | Use Scenario: Paper jam detection, motor speed regulation, and user interface response in multifunction printers. IC Role / Device Role / Timing Role: Real-time peripheral coordinator using Timer RC for PWM motor control and Timer RE for maintenance scheduling alerts. Use Value: Hardware LIN module enables communication with upstream host controllers over single-wire bus, cutting wiring harness cost by 30% vs. RS-485. |
| Consumer Appliance UI | Industrial Sensor Interface |
Use Scenario: Touch-key scanning, display backlight dimming, and temperature compensation in microwave oven control panels. IC Role / Device Role / Timing Role: Embedded system-on-chip handling capacitive touch sensing (via KI0–KI3), PWM dimming (Timer RB), and analog sensor reading (ADC channels). Use Value: 27 high-current drive I/O ports directly drive LEDs and relays, removing need for discrete driver transistors in 80% of UI functions. | Use Scenario: Analog sensor signal acquisition and local preprocessing before CAN bus transmission in HVAC monitoring nodes. IC Role / Device Role / Timing Role: Signal conditioner and protocol bridge: ADC digitizes thermistor/voltage outputs, UART2 formats data for I²C-connected microcontroller or gateway. Use Value: 12-channel ADC with sweep mode captures 12 sensor readings in <100 µs, enabling sub-100 ms system response time critical for thermal runaway prevention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21334CDFP | Identical silicon; extended temperature range (-40°C to +85°C) and D-version qualification | Required for industrial or automotive under-hood environments where ambient exceeds 85°C | Select R5F21334CDFP when operating outside -20°C to +85°C envelope; same PCB layout and firmware |
| R5F21335CNFP | 24 KB program ROM, 2 KB RAM, same peripherals and pinout | Suitable for applications requiring larger firmware image or more runtime variables without changing hardware | Choose R5F21335CNFP when firmware size exceeds 16 KB or additional RAM buffers are needed for data logging |
Compared with R5F21334CNFP#V2, R5F21334CDFP extends operational reliability in harsh thermal environments while maintaining full compatibility, whereas R5F21335CNFP provides headroom for feature-rich firmware growth without altering board design or driver software.
Availability
R5F21334CNFP#V2 is available at Aetrix Electronics and suitable for consumer audio systems, office automation equipment, and household appliance control requiring stable component supply across multi-year production cycles.
Supply support for R5F21334CNFP#V2 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, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8C/33C Group, including R5F21334CNFP#V2, was designed for cost-sensitive, low-power embedded control in consumer electronics-emphasizing integration of analog peripherals, LIN connectivity, and robust flash endurance for field-upgradable devices.
FAQ
What is the maximum operating frequency of the R5F21334CNFP#V2 and under what voltage conditions?
The R5F21334CNFP#V2 achieves a maximum operating frequency of 20 MHz when powered at VCC = 2.7–5.5 V. At lower supply voltages (1.8–5.5 V), the maximum supported frequency reduces to 5 MHz to ensure stable operation and meet timing margins across process and temperature variations. This dual-frequency capability allows flexible power/performance scaling in battery-powered designs.
Does the R5F21334CNFP#V2 support in-system programming of its data flash memory?
Yes, the R5F21334CNFP#V2 supports background operation (BGO) for data flash, enabling real-time programming and erasure of its 4 KB data flash (1 KB × 4 blocks) while the CPU continues executing application code. This capability is essential for firmware-over-the-air (FOTA) updates and parameter storage without system interruption.
How many analog input channels does the R5F21334CNFP#V2 ADC support, and what is its resolution?
The R5F21334CNFP#V2 integrates a 10-bit successive-approximation A/D converter with 12 dedicated analog input channels (AN0–AN11). It includes sample-and-hold functionality and sweep mode for automatic sequential conversion across all enabled channels, delivering up to 100 kSPS aggregate throughput for multi-sensor monitoring.
What peripheral resources enable LIN bus communication on the R5F21334CNFP#V2?
The R5F21334CNFP#V2 implements hardware LIN 2.0/2.1 compliance using UART0 for serial framing and Timer RA for precise baud rate generation and synchronization. No external transceiver is required-the MCU drives the LIN bus directly via a single GPIO pin configured as LIN TX, reducing component count and board space in automotive body control modules.
Is the R5F21334CNFP#V2 pin-compatible with other members of the R8C/33C Group?
Yes, all R8C/33C Group MCUs-including R5F21331CNFP, R5F21332CNFP, R5F21334CNFP#V2, R5F21335CNFP, and R5F21336CNFP-share identical 32-pin LQFP (PLQP0032GB-A) packaging and pin assignments. Firmware and hardware designs are interchangeable across this family, allowing seamless migration based on memory or feature requirements without PCB revision.
R5F21334CNFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/3x/33C
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 27
- 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:
R5F21334CNFP#V2 FAQ
1.How can I place an order for R5F21334CNFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21334CNFP#V2 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 R5F21334CNFP#V2 reliable?
The price and inventory of R5F21334CNFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21334CNFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21334CNFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21334CNFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21334CNFP#V2?
R5F21334CNFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21334CNFP#V2 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 R5F21334CNFP#V2?
For technical support, including R5F21334CNFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21334CNFP#V2 requirements.
6.How does Aetrix verify that R5F21334CNFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21334CNFP#V2 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 R5F21334CNFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21334CNFP#V2?
All R5F21334CNFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21334CNFP#V2, 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 R5F21334CNFP#V2 part is unused and in its original packaging.
Return procedure for R5F21334CNFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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