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Renesas R5F21334MNFP#V2
- Part No.:
- R5F21334MNFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21334MNFP#V2.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,279
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Product details
Overview
R5F21334MNFP#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), features a 16×16→32-bit hardware multiplier, and integrates UART0/1/2, I²C, LIN, 10-bit 12-channel ADC, dual 8-bit DACs, and four timers (RA/RB/RC/RE) for embedded control in consumer appliances.
For engineers reviewing the R5F21334MNFP#V2 datasheet, R5F21334MNFP#V2 pinout, R5F21334MNFP#V2 application, or R5F21334MNFP#V2 equivalent, this page delivers verified specifications, validated 32-pin LQFP package mapping, confirmed peripheral register layout, and real-world use cases in audio equipment, office automation, and household appliance motor control.
Technical Context
The R5F21334MNFP#V2 implements the R8C CPU core with 89 fundamental instructions and supports single-chip mode across a 1-Mbyte address space. Its clock system includes XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz), high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - all with oscillation stop detection and selectable frequency division (1/2/4/8/16).
Peripheral integration includes a 23-source Data Transfer Controller (DTC), 69 interrupt vectors with 7 priority levels, voltage detection circuit (power-on reset + dual-level voltage monitor), and LIN module implemented via timer RA and UART0 - enabling hardware-level LIN 2.0 compliance without software bit-banging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions; enables compact code size and deterministic timing for real-time control loops. |
| Max Operating Frequency | 20 MHz at VCC = 2.7–5.5 V; delivers 50 ns minimum instruction execution time for responsive system control. |
| Memory | 16 KB flash ROM + 1.5 KB RAM + 4 KB data flash (1 KB × 4 blocks); supports BGO for firmware updates without halting execution. |
| Analog Peripherals | 10-bit 12-channel ADC with sample-and-hold + dual 8-bit DACs; enables closed-loop analog sensing and actuation in motor or audio subsystems. |
| Timers | Timer RA (8-bit PWM), RB (8-bit programmable waveform), RC (16-bit with 4 capture/compare registers), RE (real-time clock); provides flexible timing for PWM motor drive, pulse measurement, and timekeeping. |
| Serial Interfaces | UART0/1/2 (with I²C mode on UART2), SSU, LIN hardware module; supports multi-protocol communication in mixed-signal systems. |
| Power Management | Wait mode (3.5 µA @ 3.0 V, 32 kHz) and stop mode (2.0 µA @ 3.0 V); extends battery life in portable or energy-sensitive applications. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, lead-free, RoHS-compliant.
| 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 ports | 27 programmable bidirectional pins with software-selectable pull-up resistors; all support LED drive capability. |
| P4_2 | Input-only port | Dedicated analog reference voltage input (VREF) for ADC/DAC; isolated from output drivers to minimize noise coupling. |
| XIN/XOUT | External crystal oscillator interface | Supports 20 MHz ceramic resonator or crystal; enables precise timing for UART baud rate generation and real-time control. |
| XCIN/XCOUT | 32 kHz crystal oscillator interface | Drives low-power RTC and watchdog timer independently of main clock domain for accurate timekeeping during sleep. |
| AN0–AN11 | Analog inputs | 12-channel 10-bit ADC inputs with internal sample-and-hold; supports simultaneous sampling sweep mode for multi-sensor acquisition. |
| DA0/DA1 | Digital-to-analog outputs | Two independent 8-bit voltage-output DACs; used for analog biasing, audio tone generation, or sensor calibration signals. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming while CPU executes from program ROM - enables seamless firmware field updates without system interruption. |
| Hardware LIN Module | Integrated LIN 2.0 physical layer via timer RA and UART0 - eliminates external transceiver need and reduces BOM cost in automotive body electronics. |
| Multi-Source DTC | Single-channel Data Transfer Controller activated by 23 peripheral sources (e.g., ADC EOC, UART RX full); offloads CPU from byte-level data movement. |
| Voltage Detection Circuit | Dual-level voltage monitor (VDD detect + configurable threshold) with power-on reset - ensures reliable boot and brown-out recovery in unregulated power supplies. |
| Real-Time Clock (Timer RE) | 8-bit timer with dedicated registers for seconds/minutes/hours/days-of-week; runs from 32 kHz XCIN clock during stop mode for ultra-low-power timekeeping. |
Applications
| Audio Equipment Control | Office Automation |
|---|---|
Use Scenario: Volume control, equalizer tuning, and source selection in digital audio receivers. IC Role / Device Role / Timing Role: Main system controller managing UI inputs, audio codec interface, and display driver via UART/I²C. Use Value: Integrated 10-bit ADC reads potentiometer positions; dual DACs generate analog bias voltages for op-amp stages; BGO allows silent firmware upgrades during playback. | Use Scenario: Paper jam detection, toner level monitoring, and motor sequencing in laser printers. IC Role / Device Role / Timing Role: Peripheral coordinator interfacing with optical sensors, stepper drivers, and thermal head controllers. Use Value: 12-channel ADC monitors multiple analog sensor outputs; Timer RC captures encoder pulses for precise paper feed control; LIN module communicates with power supply unit. |
| Household Appliance Motor Control | Consumer Remote-Controlled Devices |
Use Scenario: Fan speed regulation and temperature feedback in air purifiers or HVAC units. IC Role / Device Role / Timing Role: Real-time motor controller executing PID loops using Timer RA PWM and ADC-sampled thermistor data. Use Value: Hardware multiplier accelerates PID math; 20 MHz CPU ensures sub-millisecond loop response; low-power stop mode extends standby battery life. | Use Scenario: IR remote decoding, display update, and button debounce in smart home hubs. IC Role / Device Role / Timing Role: System manager handling NEC/RC5 protocol decode, LCD segment driving, and capacitive touch sensing. Use Value: Key input interrupt (KI0–KI3) enables wake-from-sleep on button press; UART0 handles debug logging; 1.5 KB RAM buffers command queues and state variables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21334MDFP | Same core, memory, and peripherals; rated for −40°C to +85°C industrial temperature range vs. −20°C to +85°C for R5F21334MNFP#V2. | Required for outdoor or automotive-adjacent environments where extended ambient temperature tolerance is mandatory. | Select R5F21334MDFP when operating below −20°C or in thermally unstable enclosures; otherwise R5F21334MNFP#V2 suffices for indoor consumer use. |
| R5F21335MNFP | 24 KB program ROM and 2 KB RAM - 8 KB/0.5 KB larger than R5F21334MNFP#V2; identical package and peripheral set. | Suitable when firmware growth exceeds 16 KB or additional RAM is needed for complex UI stacks or communication buffers. | Choose R5F21335MNFP only if current firmware size approaches 14 KB or runtime heap usage exceeds 1.2 KB; avoids premature redesign. |
Compared with R5F21334MDFP, the R5F21334MNFP#V2 offers lower cost and sufficient thermal margin for indoor appliances; compared with R5F21335MNFP, it provides optimal memory utilization for stable, feature-complete firmware under 15 KB with minimal BOM overhead.
Availability
R5F21334MNFP#V2 is available at Aetrix Electronics and suitable for electronic household appliances, office equipment, and audio equipment requiring stable component supply across long production lifecycles.
Supply support for R5F21334MNFP#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, and power solutions for automotive, industrial, and consumer markets.
The R8C/33M Group, including R5F21334MNFP#V2, was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integrated analog peripherals, robust EMI/EMS performance, and field-upgradable flash architecture.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21334MNFP#V2?
The R5F21334MNFP#V2 operates at up to 20 MHz when supplied with VCC = 2.7 V to 5.5 V. At lower frequencies (e.g., 5 MHz), it supports down to 1.8 V, enabling compatibility with single-cell Li-ion or alkaline battery systems. This dual-voltage capability allows flexible power architecture design without external regulators in many consumer applications.
Does the R5F21334MNFP#V2 support in-system programming and background operation?
Yes, the R5F21334MNFP#V2 supports background operation (BGO) for its 4 KB data flash (1 KB × 4 blocks), allowing program ROM or data flash erase/write operations while the CPU continues executing from other memory regions. This enables safe over-the-air firmware updates and runtime parameter storage without system reset or interruption - a key requirement for always-on consumer devices.
What serial communication interfaces are integrated into the R5F21334MNFP#V2?
The R5F21334MNFP#V2 integrates UART0, UART1, and UART2 (with I²C-bus mode), a synchronous serial unit (SSU), an I²C bus interface (shared with SSU), and a hardware LIN module. UART2's dual-mode capability supports both standard UART and I²C protocols on the same pins, reducing pin count while maintaining interoperability with sensors, displays, and automotive submodules.
How many analog-to-digital converter channels does the R5F21334MNFP#V2 include, and what is their resolution?
The R5F21334MNFP#V2 includes a 10-bit successive-approximation ADC with 12 input channels (AN0–AN11), featuring sample-and-hold functionality and sweep mode for automatic sequential conversion. This resolution supports precise temperature sensing, battery voltage monitoring, and audio signal analysis in mid-tier consumer products without requiring external precision ADCs.
What is the purpose of the LIN module in the R5F21334MNFP#V2, and how is it implemented?
The LIN module in the R5F21334MNFP#V2 is implemented using timer RA and UART0 to provide hardware-level LIN 2.0 protocol support - including break detection, sync field handling, and checksum calculation - without CPU intervention. This enables reliable, low-cost communication with automotive body modules (e.g., door locks, lighting) in white goods or vehicle-adjacent consumer systems.
R5F21334MNFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/3x/33M
- 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:
R5F21334MNFP#V2 FAQ
1.How can I place an order for R5F21334MNFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21334MNFP#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 R5F21334MNFP#V2 reliable?
The price and inventory of R5F21334MNFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21334MNFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21334MNFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21334MNFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21334MNFP#V2?
R5F21334MNFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21334MNFP#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 R5F21334MNFP#V2?
For technical support, including R5F21334MNFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21334MNFP#V2 requirements.
6.How does Aetrix verify that R5F21334MNFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21334MNFP#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 R5F21334MNFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21334MNFP#V2?
All R5F21334MNFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21334MNFP#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 R5F21334MNFP#V2 part is unused and in its original packaging.
Return procedure for R5F21334MNFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21334MNFP#V2 Tags
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