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Renesas R5F21332CNFP#50
- Part No.:
- R5F21332CNFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21332CNFP#50.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F21332CNFP#50 from Renesas is an 8 KB flash, 1 KB RAM, 32-pin LQFP 8-bit MCU in the R8C/33C Group, featuring an R8C CPU core with 16×16→32-bit hardware multiplier, 10-bit 12-channel ADC, dual 8-bit DACs, LIN hardware module, and background operation (BGO) data flash-designed for real-time control in consumer audio and office equipment.
For engineers reviewing the R5F21332CNFP#50 datasheet, R5F21332CNFP#50 pinout, R5F21332CNFP#50 application, or R5F21332CNFP#50 equivalent, this page delivers verified specifications, validated 32-pin PLQP0032GB-A package mapping, confirmed peripheral register layout, and two field-validated alternative parts for embedded timing-critical systems operating at 1.8–5.5 V.
Technical Context
The R5F21332CNFP#50 implements the R8C CPU core with 89 fundamental instructions, 20-bit address space (1 Mbyte), and single-chip mode operation. It supports four 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 oscillation stop detection and selectable frequency dividers (1/2/4/8/16).
Peripheral integration includes three UARTs (UART0/1/2), I²C-bus/SSU shared interface, hardware LIN (using Timer RA + UART0), 16-bit Timer RC with 4 capture/compare registers and PWM2 output, and a dedicated 8-bit real-time clock (Timer RE) with weekday counting and output compare mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 8-bit core with 89 instructions, 16×16→32-bit hardware multiplier, and multiply-accumulate capability-enabling efficient signal processing in resource-constrained appliances. |
| Memory | 8 KB program flash ROM, 1 KB × 4 blocks (4 KB total) data flash with BGO, and 1 KB SRAM-supporting firmware updates without halting execution. |
| ADC/DAC | 10-bit resolution A/D converter across 12 analog inputs with sample-and-hold and sweep mode; dual 8-bit D/A converters (DA0/DA1) for analog output generation. |
| Timers | Timer RA (8-bit, period/PWM), Timer RB (8-bit, programmable waveform), Timer RC (16-bit, 4-channel capture/compare, PWM/PWM2), Timer RE (8-bit RTC with seconds-minutes-hours-weekday count). |
| Serial Interfaces | UART0/1 (clock sync/async), UART2 with I²C-bus mode and multiprocessor communication, plus SSU/I²C shared peripheral-enabling multi-protocol connectivity in compact designs. |
| Supply & Power | 1.8–5.5 V operation; typical current draw: 6.5 mA @ 5 V/20 MHz, 3.5 µA in wait mode (32 kHz), 2.0 µA in stop mode-optimized for battery-backed or energy-sensitive applications. |
| Package & Temp | 32-pin LQFP (PLQP0032GB-A, 7 mm × 7 mm, 0.8 mm pitch); industrial temperature range −20°C to +85°C (N version). |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm pin pitch, exposed pad not specified. Pin functions include 27 CMOS I/O ports (with programmable pull-up), 1 input-only port (P4_2), analog inputs (AN0–AN11), DAC outputs (DA0/DA1), UART/I²C/SSU/LIN signal pins, and dedicated timer I/O (TRAO/TRBO/TRCIOx/TREO).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog/Digital I/O | AN0–AN7 inputs; DA0/DA1 outputs; TRCIOA/TRCTRG timer signals-supports mixed-signal sensor interfacing and analog output control. |
| P1_0–P1_7 | Programmable I/O | KI0–KI3 key interrupt inputs; AN8–AN11; TRAIO/TRAO/INT1-enables keypad scanning and timer-driven signal generation. |
| P2_0–P2_2 | Timer/Interrupt I/O | TRCIOC/TRCIOD/TRCIOB; INT1-provides flexible routing for Timer RC capture/compare and external event triggering. |
| P3_1, P3_3–P3_7 | Serial Interface Pins | SDA/SCL (I²C), SSO/SSCK/SSI (SSU), RXD2/TXD2/SCL2/SDA2 (UART2)-shared functionality enables protocol reuse on limited pins. |
| P4_2, P4_5–P4_7 | Analog/Control/Power | VREF reference input; ADTRG A/D trigger; XIN/XOUT clock oscillator; RESET and MODE configuration-critical for precision conversion and system initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erase/write during program execution-enables over-the-air firmware updates and runtime parameter storage without system interruption. |
| Hardware LIN Module | Dedicated LIN 2.0 support via Timer RA + UART0-eliminates software bit-banging, reduces CPU load, and ensures protocol compliance in automotive body electronics. |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 32 kHz) and stop mode (2.0 µA)-extends battery life in portable audio devices and remote controls. |
| Multi-Source Clock System | Four independent clocks (XIN, XCIN, high-speed/low-speed on-chip oscillators) with automatic failover and oscillation stop detection-ensures robust timing under varying environmental conditions. |
| Integrated Voltage Detection | Power-on reset and configurable voltage detection levels (VDD monitoring)-prevents erratic behavior during brown-out conditions in consumer power supplies. |
Applications
| Audio Signal Processing | Office Equipment Control |
|---|---|
Use Scenario: Digital audio mixer with volume leveling, tone adjustment, and LED display feedback in compact home theater receivers. IC Role / Device Role / Timing Role: Primary controller executing real-time DSP routines via R8C CPU, managing ADC sampling of line-in signals, and driving DAC outputs for headphone amplification. Use Value: 10-bit ADC with sweep mode captures multi-channel audio simultaneously; dual 8-bit DACs generate analog outputs with <1 LSB INL error per Renesas characterization. |
Use Scenario: Automatic document feeder logic and paper jam detection in multifunction printers. IC Role / Device Role / Timing Role: Central sequencer coordinating stepper motor control (via Timer RB PWM), optical sensor reading (via ANx inputs), and serial communication with host PC (UART0). Use Value: Hardware LIN module interfaces with toner cartridge sensors; 27 high-current drive I/O ports directly drive solenoids and LEDs without external buffers. |
| Consumer Appliance UI | Industrial Panel Controller |
Use Scenario: Touchless control panel for microwave ovens using capacitive proximity sensing and LED status indicators. IC Role / Device Role / Timing Role: Real-time UI manager handling key input interrupts (KI0–KI3), updating 7-segment displays via port toggling, and monitoring door latch sensors (ANx). Use Value: 7-level interrupt priority and 69 vector table entries enable deterministic response to safety-critical events like door open detection within ≤2 µs latency. |
Use Scenario: Local HMI node in HVAC control panels requiring local temperature logging and RS-485 gateway functionality. IC Role / Device Role / Timing Role: Edge-node processor running Modbus RTU over UART1, storing calibration data in BGO-enabled data flash, and maintaining RTC time across power cycles. Use Value: Timer RE provides accurate real-time clock with weekday tracking; 4 KB data flash endurance (10,000 erase/write cycles) ensures 10+ years of daily log writes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21334CNFP | 16 KB program ROM, 1.5 KB RAM, same 32-pin LQFP package and peripheral set-no change to pinout or clock architecture. | Required for larger firmware images or extended data buffering in audio codec stacks. | Select when firmware size exceeds 8 KB or additional RAM is needed for complex state machines. |
| R5F21332CDFP | Identical memory and peripherals, but rated for −40°C to +85°C (D version) vs. −20°C to +85°C (N version) of R5F21332CNFP#50. | Necessary for deployment in uncontrolled ambient environments such as garage-mounted smart appliances. | Choose only if extended temperature qualification is mandated by end-equipment safety certification. |
Compared with R5F21332CNFP#50, R5F21334CNFP offers scalable code space while preserving full hardware compatibility, whereas R5F21332CDFP provides identical functionality with extended thermal qualification-neither requires PCB redesign or firmware modification.
Availability
R5F21332CNFP#50 is available at Aetrix Electronics and suitable for audio equipment, office automation devices, and consumer appliance control systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F21332CNFP#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, and power solutions for automotive, industrial, and IoT markets.
The R8C/33C Group-including R5F21332CNFP#50-is designed for cost-sensitive, low-power embedded control in consumer electronics, emphasizing integrated analog peripherals, LIN compliance, and robust EMI/EMS performance.
FAQ
What is the maximum operating frequency of the R5F21332CNFP#50?
The R5F21332CNFP#50 supports up to 20 MHz operation when powered at 2.7–5.5 V using the XIN clock source. At lower voltages (1.8–5.5 V), the maximum frequency is 5 MHz. The high-speed on-chip oscillator is adjustable and usable across the full voltage range, enabling clock flexibility without external components.
Does the R5F21332CNFP#50 support in-system programming (ISP)?
Yes, the R5F21332CNFP#50 supports on-chip debug and in-system programming via its built-in debug interface. Program ROM and data flash can be rewritten in-system using the on-board flash rewrite function-no external programmer is required for field firmware updates or calibration data writes.
How many interrupt vectors does the R5F21332CNFP#50 provide?
The R5F21332CNFP#50 provides 69 interrupt vectors, including 7 external interrupts (INT0–INT3, Key Input ×4), timer interrupts, serial interface events, A/D conversion completion, and voltage detection triggers-enabling prioritized, deterministic response to multiple concurrent real-time events.
What is the purpose of the BGO (Background Operation) function in the R5F21332CNFP#50?
The BGO function allows the R5F21332CNFP#50 to execute application code while erasing or writing to data flash memory. This enables seamless firmware updates, parameter storage, or logging without halting system operation-critical for uninterrupted audio playback or appliance control sequences.
Can the R5F21332CNFP#50 operate from a single 3.3 V supply?
Yes, the R5F21332CNFP#50 operates across 1.8–5.5 V, making 3.3 V fully supported. At 3.0 V and 10 MHz, typical current consumption is 3.5 mA; in wait mode with 32 kHz XCIN clock, it draws just 3.5 µA-ideal for 3.3 V battery-powered remote controls and portable audio accessories.
R5F21332CNFP#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:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1K 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:
R5F21332CNFP#50 FAQ
1.How can I place an order for R5F21332CNFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21332CNFP#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 R5F21332CNFP#50 reliable?
The price and inventory of R5F21332CNFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21332CNFP#50 is usually 5 days.
3.What payment methods are accepted for R5F21332CNFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21332CNFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21332CNFP#50?
R5F21332CNFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21332CNFP#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 R5F21332CNFP#50?
For technical support, including R5F21332CNFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21332CNFP#50 requirements.
6.How does Aetrix verify that R5F21332CNFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F21332CNFP#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 R5F21332CNFP#50 meets industry standards.
7.What is the process for return or replacement of R5F21332CNFP#50?
All R5F21332CNFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21332CNFP#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 R5F21332CNFP#50 part is unused and in its original packaging.
Return procedure for R5F21332CNFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21332CNFP#50 Tags
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