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Renesas R5F21332CNFP#V2
- Part No.:
- R5F21332CNFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21332CNFP#V2.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,345
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Product details
Overview
R5F21332CNFP#V2 from Renesas is an 8 KB flash, 1 KB RAM, 32-pin LQFP 8-bit MCU based on the R8C CPU core, delivering 50 ns minimum instruction execution at 20 MHz (VCC = 2.7–5.5 V), integrated 10-bit × 12-channel ADC, dual 8-bit DACs, and hardware LIN support via Timer RA + UART0 - deployed in consumer audio equipment and office automation control systems.
For engineers reviewing the R5F21332CNFP#V2 datasheet, R5F21332CNFP#V2 pinout, R5F21332CNFP#V2 application, or R5F21332CNFP#V2 equivalent, key selection criteria include its -20°C to +85°C N-version operating range, background operation (BGO) data flash capability, and 32-pin PLQP0032GB-A package with verified I²C, UART×3, and LIN physical layer compliance.
Technical Context
The R5F21332CNFP#V2 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 program ROM starting at 0E000h and data flash allocated at 03000h–03FFFh (four 1 KB blocks).
Peripheral integration includes three independent timers (RA/RB/RC/RE), DTC with 23 activation sources, voltage detection circuitry (VDD monitor with selectable thresholds), and dual clock domains: XIN (up to 20 MHz) and XCIN (32 kHz crystal). Low-power modes - wait (3.5 µA @ 3 V) and stop (2.0 µA @ 3 V) - are enabled via dedicated system clock control registers (CM0/CM1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 8-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC support - enables efficient motor control and sensor fusion algorithms. |
| Flash / RAM | 8 KB program flash + 1 KB data flash (4×1 KB BGO-capable blocks) + 1 KB SRAM - supports field firmware updates without halting execution. |
| ADC / DAC | 10-bit resolution × 12 channels with sample-and-hold + 8-bit × 2 DAC outputs - suitable for analog sensor interfacing and audio signal generation. |
| Timers | Timer RA (8-bit PWM), RB (8-bit programmable waveform), RC (16-bit with 4 capture/compare), RE (real-time clock) - provides precise timing for motor commutation and time-stamped event logging. |
| Communication | UART0/1/2 (UART/I²C/SSU shared), hardware LIN module (Timer RA + UART0), and I²C-bus interface - enables multi-node automotive body electronics and appliance HMI communication. |
| Power & Temp | 1.8–5.5 V supply range; -20°C to +85°C ambient rating (N version); typical current draw: 6.5 mA @ 5 V/20 MHz, 3.5 µA in wait mode - fits battery-powered and mains-operated consumer devices. |
| Package | 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch - compatible with standard surface-mount assembly and reflow profiles. |
Pinout & Package
32-pin LQFP package (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm lead pitch. Pin functions validated per Renesas R01DS0008EJ0100 Rev 1.00 datasheet Figures 1.3 and Table 1.4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | CMOS I/O port with analog input (AN0–AN7), DA0/DA1 outputs | Configurable as digital I/O, ADC inputs, or DAC outputs - enables mixed-signal control of LED drivers or audio amplifiers. |
| P1_0–P1_7 | CMOS I/O port with KI0–KI3 key interrupt, AN8–AN11, TRAIO/TRAO | Supports capacitive touch sensing, keypad scanning, and timer output routing - ideal for appliance user interfaces. |
| P2_0–P2_2 | CMOS I/O port with INT1, TRCIOB/TRCIOD | Provides external interrupt triggering and Timer RC I/O - used for emergency stop inputs or encoder quadrature decoding. |
| P3_1, P3_3–P3_7 | I/O with UART2 (RXD2/TXD2/SCL2/SDA2), SCL/SDA, SSCK/SSO/SSI | Shared pins for I²C, UART, and SSU - allows flexible peripheral expansion with minimal pin count overhead. |
| P4_2, P4_5–P4_7 | VREF input, ADTRG, RESET, MODE, XIN/XOUT, XCIN/XCOUT | Analog reference, A/D trigger, reset control, clock source selection - ensures stable analog measurement and deterministic boot behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming while CPU executes - enables seamless firmware patching in deployed appliances. |
| Hardware LIN Module | Dedicated LIN 2.0/2.1 support via Timer RA + UART0 - eliminates software bit-banging, reduces CPU load in automotive HVAC nodes. |
| Low-Power Modes | Wait mode (3.5 µA @ 3 V, 32 kHz XCIN) and stop mode (2.0 µA) - extends battery life in portable audio players and smart remotes. |
| Integrated Voltage Detection | Programmable VDD monitor with 3 detection levels and power-on reset - ensures reliable startup and brown-out recovery without external supervisors. |
| Multiplexed Peripheral Pins | Up to 4 alternate functions per pin (e.g., P3_7 = TRAO/RXD2/SCL2/TXD2/SDA2) - maximizes functionality within 32-pin footprint for space-constrained designs. |
Applications
| Audio Signal Processing | Office Equipment Control |
|---|---|
Use Scenario: Volume leveling, tone adjustment, and digital audio output in compact stereo receivers and Bluetooth speakers. IC Role / Device Role / Timing Role: Primary controller managing ADC sampling, DAC playback, and UART-based remote command parsing. Use Value: Integrated 10-bit ADC and dual 8-bit DAC eliminate external converters; BGO flash enables over-the-air EQ profile updates. |
Use Scenario: Paper jam detection, motor sequencing, and display refresh in multifunction printers and scanners. IC Role / Device Role / Timing Role: Real-time coordinator of stepper motor drivers, optical sensors, and LCD interface using Timer RC and UART1. Use Value: Hardware LIN support simplifies communication with toner cartridges; 12-channel ADC monitors thermal and mechanical sensors. |
| Consumer Appliance UI | Home Automation Node |
Use Scenario: Touch-sensitive control panel with backlight dimming and status feedback in microwave ovens and induction cooktops. IC Role / Device Role / Timing Role: Keypad scanner (KI0–KI3), PWM-controlled LED driver (Timer RB), and serial display interface (UART0). Use Value: Dedicated key interrupt inputs reduce polling overhead; high-current drive ports directly sink LED segments without external transistors. |
Use Scenario: Wireless gateway node aggregating Zigbee/Z-Wave sensor data and relaying commands to lighting and climate actuators. IC Role / Device Role / Timing Role: Protocol bridge between RF modules (via UART2) and local peripherals (I²C sensors, DAC-controlled HVAC valves). Use Value: Shared I²C/SSU pins minimize external logic; 1 KB data flash stores device-specific encryption keys and network credentials. |
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 flash, 1.5 KB RAM, same package/peripherals | Higher firmware complexity (RTOS, larger protocol stacks), longer product lifecycle planning | Select when future feature expansion or bootloader size exceeds 8 KB constraints. |
| R5F21332CDFP | Same flash/RAM, -40°C to +85°C industrial temperature grade | Extended ambient operation in uncontrolled environments (e.g., garage door openers, outdoor HVAC units) | Choose for deployments requiring guaranteed operation below -20°C ambient. |
Compared with R5F21334CNFP and R5F21332CDFP, the R5F21332CNFP#V2 offers optimal cost-performance balance for consumer-grade applications where 8 KB flash suffices and ambient temperature stays above -20°C - avoiding over-specification while retaining full peripheral compatibility.
Availability
R5F21332CNFP#V2 is available at Aetrix Electronics and suitable for consumer audio equipment, office automation systems, and home appliance control requiring stable component supply across multi-year production cycles.
Supply support for R5F21332CNFP#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 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#V2, 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 and supply voltage range for the R5F21332CNFP#V2?
The R5F21332CNFP#V2 operates at up to 20 MHz when supplied with 2.7–5.5 V, achieving a minimum instruction execution time of 50 ns. At lower frequencies (e.g., 5 MHz), it supports down to 1.8 V, enabling ultra-low-power operation in battery-powered devices. This dual-voltage capability is confirmed in Table 1.2 of the R01DS0008EJ0100 datasheet.
Does the R5F21332CNFP#V2 support in-circuit debugging and flash programming?
Yes, the R5F21332CNFP#V2 includes on-chip debug functionality and on-board flash rewrite capability, allowing full firmware development and field updates without external programmers. These features are enabled via the dedicated debug interface and are documented in Section 1.2 of the R01DS0008EJ0100 datasheet.
How many analog-to-digital converter channels does the R5F21332CNFP#V2 provide, and what is their resolution?
The R5F21332CNFP#V2 integrates a 10-bit resolution A/D converter with 12 input channels (AN0–AN11), including sample-and-hold and sweep mode operation. This configuration supports simultaneous monitoring of multiple sensors in appliances like refrigerators or air purifiers, as specified in Table 1.2 and Section 1.1.2 of the datasheet.
What peripheral interfaces are available on the R5F21332CNFP#V2 for connecting to external sensors or displays?
The R5F21332CNFP#V2 provides UART0/1/2 (with I²C and SSU sharing), I²C-bus, LIN, and synchronous serial I/O - enabling direct connection to temperature sensors (I²C), OLED displays (UART), and automotive subsystems (LIN). Pin multiplexing (e.g., P3_7 supporting RXD2/SCL2/TXD2/SDA2) maximizes interface flexibility within the 32-pin LQFP.
Is the R5F21332CNFP#V2 pin-compatible with other members of the R8C/33C Group?
Yes, all R8C/33C Group MCUs, including R5F21332CNFP#V2, share the identical 32-pin PLQP0032GB-A package and pin assignment. This allows hardware reuse across variants (e.g., R5F21334CNFP or R5F21332CDFP) when upgrading flash size or temperature grade without PCB redesign.
R5F21332CNFP#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:
- 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#V2 FAQ
1.How can I place an order for R5F21332CNFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21332CNFP#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 R5F21332CNFP#V2 reliable?
The price and inventory of R5F21332CNFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21332CNFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21332CNFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21332CNFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21332CNFP#V2?
R5F21332CNFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21332CNFP#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 R5F21332CNFP#V2?
For technical support, including R5F21332CNFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21332CNFP#V2 requirements.
6.How does Aetrix verify that R5F21332CNFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21332CNFP#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 R5F21332CNFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21332CNFP#V2?
All R5F21332CNFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21332CNFP#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 R5F21332CNFP#V2 part is unused and in its original packaging.
Return procedure for R5F21332CNFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21332CNFP#V2 Tags
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