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Renesas R5F21334CNFP#50
- Part No.:
- R5F21334CNFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21334CNFP#50.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,939
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Product details
Overview
R5F21334CNFP#50 from Renesas Electronics 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 integrated 10-bit ADC (12 channels), dual 8-bit DACs, LIN hardware module, and real-time clock (Timer RE), targeting embedded control in consumer audio and office equipment.
For engineers reviewing the R5F21334CNFP#50 datasheet, R5F21334CNFP#50 pinout, R5F21334CNFP#50 application, or R5F21334CNFP#50 equivalent, key selection criteria include its 32-pin LQFP package, -20°C to +85°C temperature grade (N version), on-chip debug capability, and support for low-power wait/stop modes with sub-µA current consumption.
Technical Context
The R5F21334CNFP#50 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 fixed interrupt vector table at 0FFDCh–0FFFFh and data flash at 03000h–03FFFh.
It integrates four independent clock sources - XIN/XOUT (up to 20 MHz), XCIN/XCOUT (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 across 0000h–02FFFh, including DTC (1 channel, 23 activation sources) and LIN protocol handling via Timer RA and UART0.
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/DAC | 10-bit resolution × 12-channel ADC with sample-and-hold; dual 8-bit DAC outputs (DA0/DA1) |
| Timers | Timer RA (8-bit), RB (8-bit PWM), RC (16-bit with 4 capture/compare registers), RE (real-time clock) |
| Serial Interfaces | UART0/UART1 (clock sync/UART), UART2 (UART/I²C/multiprocessor), SSU/I²C-bus (shared), hardware LIN |
| Power & Temp | 1.8–5.5 V supply; -20°C to +85°C operating range (N version); typ. 2.0 µA in stop mode |
| 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, 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 port | 27 programmable bidirectional pins with software-selectable pull-up resistors; all support LED drive |
| P4_2 | Input-only port | Analog reference voltage input (VREF) for ADC/DAC; no output capability |
| XIN/XOUT | Primary system clock input/output | Supports external crystal/resonator up to 20 MHz; enables high-speed execution and precise timing |
| XCIN/XCOUT | Real-time clock oscillator | 32 kHz crystal interface for Timer RE and low-power RTC operation |
| AN0–AN11 | Analog inputs | 12-channel 10-bit ADC inputs; AN0/AN1 also serve as DAC outputs (DA1/DA0) |
| TRAO, TRBO, TRCIOA–D, TREO | Timer peripheral I/O | Dedicated pins for PWM, capture/compare, pulse generation, and RTC output with configurable functions |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent program execution and data flash reprogramming without halting CPU |
| Hardware LIN Module | Full LIN 2.0/2.1 compliance via Timer RA and UART0; eliminates need for external LIN transceiver in basic nodes |
| Low-Power Modes | Wait mode (3.5 µA @ 32 kHz) and stop mode (2.0 µA) enable battery-powered operation for >1 year |
| On-Chip Debug | Fully integrated debug interface supports real-time trace, breakpoint, and flash rewrite during development |
| Voltage Detection | Dual-level voltage monitor (VDD/VCC) with programmable thresholds ensures reliable reset and brown-out protection |
Applications
| Audio Equipment Control | Office Equipment Motor Control |
|---|---|
Use Scenario: Volume, tone, and source selection logic in portable CD players and mini-component systems. IC Role / Device Role / Timing Role: Main system controller executing audio processing firmware, managing button inputs, display, and DAC output timing. Use Value: Integrated 10-bit ADC reads potentiometer positions; dual 8-bit DACs generate analog bias voltages for op-amp stages. | Use Scenario: Precision speed and direction control of paper feed and scanning motors in multifunction printers. IC Role / Device Role / Timing Role: Real-time motor sequencer using Timer RB PWM and Timer RC capture/compare for closed-loop feedback. Use Value: Hardware LIN interface communicates with sensor modules; 16 KB flash accommodates field-upgradable motion profiles. |
| Consumer Appliance UI | Industrial Panel Meter Interface |
Use Scenario: Keypad scanning, LED/LCD backlight dimming, and safety interlock monitoring in microwave ovens. IC Role / Device Role / Timing Role: Dedicated UI controller handling KI0–KI3 key interrupts, PWM-driven LED drivers, and voltage-detection-based fault shutdown. Use Value: 27 high-current I/O ports directly drive LEDs; built-in voltage monitor triggers immediate reset on AC line sag. | Use Scenario: Analog sensor signal conditioning and serial communication in DIN-rail mounted panel meters. IC Role / Device Role / Timing Role: Signal acquisition node converting thermocouple/RTD inputs via 12-channel ADC and transmitting via UART2/I²C. Use Value: On-chip 32 kHz RTC provides timestamping for logged measurements; data flash stores calibration coefficients with BGO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21334CDFP | Same core, memory, and peripherals; rated for -40°C to +85°C industrial temperature range | Required for outdoor or uncontrolled ambient deployments where extended thermal stability is critical | Select when operating environment exceeds -20°C minimum; otherwise R5F21334CNFP#50 suffices for commercial indoor use |
| R5F21332CNFP | 8 KB program ROM, 1 KB RAM, identical peripheral set and package | Suitable for simpler firmware with smaller code footprint and reduced RAM usage | Choose for cost-sensitive designs where 16 KB flash is unnecessary; retains full pin and register compatibility |
Compared with R5F21334CDFP, the R5F21334CNFP#50 trades extended temperature rating for lower unit cost and qualification lead time; compared with R5F21332CNFP, it delivers 100% more flash and 50% more RAM while maintaining identical peripheral functionality and footprint.
Availability
R5F21334CNFP#50 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor control, consumer appliance UI, and industrial panel meter interface requiring stable component supply across production lifecycles.
Supply support for R5F21334CNFP#50 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 R5F21334CNFP#50, was designed for cost-effective, low-power embedded control in consumer electronics-emphasizing integration of analog peripherals, LIN connectivity, and robust EMI/EMS performance.
FAQ
What is the maximum operating frequency of the R5F21334CNFP#50?
The R5F21334CNFP#50 supports a maximum operating frequency of 20 MHz when powered at 2.7–5.5 V using the XIN clock source. At lower supply voltages (1.8–5.5 V), the maximum frequency is reduced to 5 MHz. The on-chip high-speed oscillator is adjustable and usable as an alternative clock source without external components.
Does the R5F21334CNFP#50 support in-circuit debugging?
Yes, the R5F21334CNFP#50 includes an on-chip debug interface compliant with Renesas' standard debug protocol. It supports real-time program execution control, breakpoint setting, register and memory inspection, and on-board flash rewriting-enabling full firmware development and validation without external emulators.
What are the data flash endurance and programming voltage specifications for the R5F21334CNFP#50?
The R5F21334CNFP#50 provides 4 KB of data flash (1 KB × 4 blocks) rated for 10,000 write/erase cycles. Programming and erasure operate within the same 2.7–5.5 V VCC range used for normal operation-eliminating need for external high-voltage programming supplies.
How many analog input channels does the R5F21334CNFP#50 ADC support, and what is its resolution?
The R5F21334CNFP#50 integrates a single 10-bit successive-approximation ADC with 12 analog input channels (AN0–AN11). It includes sample-and-hold functionality and supports sweep mode for automatic sequential conversion across selected channels.
Is the R5F21334CNFP#50 pin-compatible with other members of the R8C/33C Group?
Yes, all R8C/33C Group MCUs-including R5F21334CNFP#50, R5F21332CNFP, and R5F21336CNFP-share the identical 32-pin LQFP (PLQP0032GB-A) package and pin assignment. Firmware and PCB layouts are interchangeable across the group, differing only in flash/RAM capacity and temperature grade.
R5F21334CNFP#50 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:
- 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#50 FAQ
1.How can I place an order for R5F21334CNFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21334CNFP#50 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#50 reliable?
The price and inventory of R5F21334CNFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21334CNFP#50 is usually 5 days.
3.What payment methods are accepted for R5F21334CNFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21334CNFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21334CNFP#50?
R5F21334CNFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21334CNFP#50 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#50?
For technical support, including R5F21334CNFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21334CNFP#50 requirements.
6.How does Aetrix verify that R5F21334CNFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F21334CNFP#50 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#50 meets industry standards.
7.What is the process for return or replacement of R5F21334CNFP#50?
All R5F21334CNFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21334CNFP#50, 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#50 part is unused and in its original packaging.
Return procedure for R5F21334CNFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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