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Renesas R5F21335CNFP#30
- Part No.:
- R5F21335CNFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21335CNFP#30.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F21335CNFP#30 from Renesas Electronics is a 16-bit R8C CPU core MCU with 24 KB flash program ROM, 2 KB data flash (4 × 1 KB blocks), and 2 KB RAM in a 32-pin LQFP package. It operates at up to 20 MHz (VCC = 2.7–5.5 V), integrates 10-bit A/D (12 channels), dual 8-bit D/A, LIN hardware module, and supports low-power wait/stop modes for battery-powered consumer appliances.
For engineers reviewing the R5F21335CNFP#30 datasheet, R5F21335CNFP#30 pinout, R5F21335CNFP#30 application, or R5F21335CNFP#30 equivalent, key selection criteria include its 24 KB program flash capacity, background operation (BGO) support for data flash, integrated LIN transceiver capability via Timer RA + UART0, and 32-pin PLQP0032GB-A package compatibility with space-constrained embedded control designs.
Technical Context
The R5F21335CNFP#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 allocated at 03000h–03FFFh.
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, real-time clock Timer RE, and DTC with 23 activation sources - all controlled via dedicated SFRs mapped across 0000h–02FFFh address space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC support for efficient signal processing. |
| Program Memory | 24 KB flash ROM (address range 0A000h–0FFFFh), enabling medium-complexity firmware for appliance control. |
| Data Flash | 4 × 1 KB blocks (03000h–03FFFh) with background operation (BGO), allowing runtime parameter storage without halting execution. |
| RAM | 2 KB internal RAM (00400h–00BFFh), sufficient for stack, variables, and intermediate buffers in real-time tasks. |
| A/D Converter | 10-bit resolution × 12 channels with sample-and-hold and sweep mode, supporting multi-sensor analog monitoring. |
| D/A Converters | Two independent 8-bit D/A outputs (DA0/DA1), usable for analog setpoint generation or audio tone control. |
| Operating Voltage | 1.8–5.5 V supply range, with 20 MHz max frequency at ≥2.7 V and 5 MHz at ≥1.8 V - enabling wide-input power design. |
| Low-Power Modes | Wait mode (3.5 µA @ 3.0 V, 32 kHz XCIN) and stop mode (2.0 µA), critical for energy-sensitive portable devices. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm pin pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC/AVCC (Pin 7) | Power supply input | Main digital and analog supply (1.8–5.5 V); AVCC requires local decoupling for A/D/D/A accuracy. |
| VSS/AVSS (Pin 5) | Ground reference | Digital and analog ground common point; separation recommended for noise-sensitive mixed-signal operation. |
| XIN/XOUT (Pins 6/4) | External crystal oscillator interface | Supports 20 MHz ceramic resonator or crystal; enables precise timing for UART baud rates and real-time functions. |
| XCIN/XCOUT (Pins 32/1) | 32 kHz low-frequency oscillator | Drives Timer RE real-time clock and low-power wait/stop modes independently of main system clock. |
| P0_0–P0_7 (Pins 25–32) | CMOS I/O port with analog functions | 12-channel A/D inputs (AN0–AN11), dual D/A outputs (DA0/DA1), and TRCIOx timer I/O - multiplexed per configuration. |
| RESET (Pin 3) | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and SFRs; debounced externally for reliable startup. |
| MODE (Pin 2) | Boot mode select | Connected to VCC via resistor to enable single-chip mode; required for normal flash execution. |
| INT0–INT3 (Pins 16/17/11/14) | External interrupt inputs | Edge-triggered interrupts for event-driven response; INT0 also serves as Timer RB/RC trigger input. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent flash programming/erasure (10,000 cycles) while executing code from other memory regions - essential for field firmware updates. |
| Hardware LIN Module | Integrated LIN 2.0 physical layer via Timer RA and UART0, eliminating external transceiver for automotive body electronics cost reduction. |
| Multi-source DTC | Single-channel Data Transfer Controller activated by 23 peripheral sources (e.g., A/D completion, UART RX), reducing CPU load during burst data transfers. |
| Real-Time Clock (Timer RE) | 8-bit timer with dedicated registers for seconds/minutes/hours/days-of-week counting using 32 kHz XCIN - no external RTC IC needed. |
| Voltage Detection Circuits | Three configurable voltage monitors (including selectable VDET0/VDET1 levels) for power-fail detection and brown-out reset management. |
| EMI/EMS Optimized Design | On-chip oscillator tuning, clock gating, and layout-aware I/O drive strength control minimize radiated emissions and improve noise immunity. |
Applications
| Home Appliance Control | Office Equipment Motor Drive |
|---|---|
Use Scenario: Microcontroller in washing machine main board managing water level sensing, motor phase control, and user interface. IC Role / Device Role / Timing Role: Central controller executing PID loops, reading 12-channel A/D (temperature, pressure, current), generating PWM via Timer RB, and communicating via UART to display module. Use Value: Integrated 24 KB flash stores complex wash cycle logic; dual 8-bit D/A outputs analog signals to analog front-end ICs; BGO allows over-the-air parameter updates without service interruption. | Use Scenario: Embedded controller in laser printer paper feed subsystem regulating stepper motor speed and jam detection. IC Role / Device Role / Timing Role: Real-time motion controller using Timer RC PWM2 mode for precise motor phase timing and INT3-triggered edge detection on optical encoder feedback. Use Value: 16-bit Timer RC with four compare registers enables synchronized multi-phase drive; 32 kHz XCIN-based Timer RE tracks print job duration for maintenance alerts; low-power stop mode extends standby battery life. |
| Consumer Audio Signal Processing | Industrial Sensor Hub |
Use Scenario: Digital audio mixer in portable speaker system adjusting volume, bass/treble, and LED indicators. IC Role / Device Role / Timing Role: Audio processor reading potentiometer A/D inputs (AN0–AN7), generating tone-control waveforms via Timer RB PWM, and driving LEDs through high-current I/O ports. Use Value: 10-bit A/D resolution captures fine analog adjustments; 27 high-current drive ports directly sink LED current without external drivers; LIN module interfaces with remote control panel. | Use Scenario: Environmental sensor node aggregating temperature, humidity, and CO₂ readings for smart building HVAC control. IC Role / Device Role / Timing Role: Sensor fusion hub using UART2 in I²C mode to read digital sensors, storing calibration data in data flash blocks, and transmitting results via UART0 to gateway. Use Value: Data flash BGO permits logging sensor history during active measurement; 1.8 V minimum supply enables direct Li-ion battery operation; voltage detection circuits monitor battery health autonomously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21334CNFP | 16 KB program ROM, 1.5 KB RAM, same peripherals and package | Suitable for simpler firmware with reduced feature set (e.g., basic timer-only control without LIN or D/A) | Select when firmware size < 16 KB and dual D/A not required - lower cost with identical footprint. |
| R5F21335CDFP | Same memory and peripherals, but -40°C to +85°C industrial temperature grade (D version) | Required for extended ambient operation in outdoor or uncontrolled environments | Choose for automotive cabin modules or industrial panels where N-version (-20°C) thermal margin is insufficient. |
Compared with R5F21334CNFP, the R5F21335CNFP#30 provides 8 KB more program flash and 0.5 KB additional RAM for enhanced feature sets; versus R5F21335CDFP, it trades industrial temperature range for cost savings in commercial-grade consumer applications.
Availability
R5F21335CNFP#30 is available at Aetrix Electronics and suitable for home appliance control, office equipment motor drive, consumer audio signal processing, and industrial sensor hub applications requiring stable component supply throughout product lifecycles.
Supply support for R5F21335CNFP#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 IoT markets.
The R8C/33C Group, including R5F21335CNFP#30, was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing EMI/EMS robustness, integrated analog peripherals, and field-upgradable flash architecture.
FAQ
What is the maximum operating frequency of the R5F21335CNFP#30 and under what voltage conditions?
The R5F21335CNFP#30 achieves a maximum operating frequency of 20 MHz when supplied with VCC = 2.7–5.5 V and using the XIN clock source. At lower voltages (1.8–5.5 V), the maximum frequency is reduced to 5 MHz to ensure stable operation - a key constraint for battery-powered designs where supply voltage may sag during discharge.
Does the R5F21335CNFP#30 support in-system programming and how is data flash endurance rated?
Yes, the R5F21335CNFP#30 supports in-system programming via on-chip debug and background operation (BGO). Its data flash is rated for 10,000 write/erase cycles, enabling reliable parameter storage and firmware updates during field operation without requiring external EEPROM - a critical capability for R5F21335CNFP#30-based smart appliances.
How many analog-to-digital converter channels does the R5F21335CNFP#30 integrate and what is their resolution?
The R5F21335CNFP#30 integrates a single 10-bit A/D converter with 12 input channels (AN0–AN11), including sample-and-hold functionality and sweep mode for sequential conversion. This resolution supports precise sensor interfacing in R5F21335CNFP#30 applications such as temperature monitoring, motor current sensing, and potentiometer position detection.
What peripheral modules enable LIN bus communication on the R5F21335CNFP#30?
LIN bus communication on the R5F21335CNFP#30 is implemented using the hardware LIN module, which combines Timer RA for baud rate generation and UART0 for data framing - eliminating the need for an external LIN transceiver. This integrated solution reduces BOM cost and PCB area in R5F21335CNFP#30 automotive body control units and appliance sub-modules.
What low-power operating modes are available on the R5F21335CNFP#30 and what are their typical current draws?
The R5F21335CNFP#30 offers wait mode (3.5 µA at 3.0 V with 32 kHz XCIN clock) and stop mode (2.0 µA at 3.0 V), both leveraging the low-speed on-chip oscillator. These modes allow R5F21335CNFP#30-based devices to maintain real-time clock operation and wake on external interrupt while minimizing energy consumption - ideal for battery-backed remote controls and sensor nodes.
R5F21335CNFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/3x/33C
- 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:
- 27
- Program Memory Size:
- 24KB (24K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K 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:
R5F21335CNFP#30 FAQ
1.How can I place an order for R5F21335CNFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21335CNFP#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 R5F21335CNFP#30 reliable?
The price and inventory of R5F21335CNFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21335CNFP#30 is usually 5 days.
3.What payment methods are accepted for R5F21335CNFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21335CNFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21335CNFP#30?
R5F21335CNFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21335CNFP#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 R5F21335CNFP#30?
For technical support, including R5F21335CNFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21335CNFP#30 requirements.
6.How does Aetrix verify that R5F21335CNFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F21335CNFP#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 R5F21335CNFP#30 meets industry standards.
7.What is the process for return or replacement of R5F21335CNFP#30?
All R5F21335CNFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21335CNFP#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 R5F21335CNFP#30 part is unused and in its original packaging.
Return procedure for R5F21335CNFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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