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Renesas R5F21332CDFP#V2
- Part No.:
- R5F21332CDFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21332CDFP#V2.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,056
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Product details
Overview
R5F21332CDFP#V2 from Renesas Electronics 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 multiplier, 10-bit 12-channel ADC, dual 8-bit DACs, LIN hardware module, and background operation (BGO) data flash for embedded control in consumer audio and appliance systems.
For engineers reviewing the R5F21332CDFP#V2 datasheet, R5F21332CDFP#V2 pinout, R5F21332CDFP#V2 application, or R5F21332CDFP#V2 equivalent, key selection criteria include operating temperature range (−40°C to +85°C), 32-pin PLQP0032GB-A package compatibility, LIN bus support via UART0+TimerRA, and BGO-enabled 4×1 KB data flash blocks for firmware updates without halting execution.
Technical Context
The R5F21332CDFP#V2 implements the R8C CPU core with 89 fundamental instructions and a dedicated 16×16→32-bit multiplier supporting multiply-accumulate operations. It executes at 50 ns minimum instruction time (20 MHz XIN, 2.7–5.5 V) and 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.
Peripheral integration includes three UART channels (UART0/1/2), I²C-bus (shared with SSU), hardware LIN (using UART0 and Timer RA), 16-bit Timer RC with 4 capture/compare registers and PWM output on 3 pins, and DTC with 23 activation sources for autonomous data transfers - all mapped into a unified 1 Mbyte address space with fixed interrupt vector table at 0FFDCh–0FFFFh.
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. |
| Memory | 8 KB program flash, 1 KB RAM, 4×1 KB data flash blocks with BGO - allows safe in-field firmware updates while maintaining real-time operation. |
| ADC/DAC | 10-bit resolution × 12 channels with sample-and-hold and sweep mode; dual 8-bit DACs (DA0/DA1) - supports analog sensor interface and audio signal generation. |
| Timers | Timer RA (8-bit, period/PWM), RB (8-bit, programmable waveform), RC (16-bit, 4 compare/capture, 3-pin PWM), RE (8-bit RTC) - provides precise timing, motor drive, and real-time clock functions. |
| Communication | UART0/1/2 (UART2 supports I²C mode), SSU, hardware LIN module, 7 external interrupts - enables multi-protocol connectivity for appliance subsystems and automotive body networks. |
| Power & Temp | 1.8–5.5 V supply; −40°C to +85°C operating range (D version); typ. 6.5 mA @ 5 V/20 MHz; 2.0 µA in stop mode - suitable for wide-input industrial and battery-backed applications. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, surface-mount. Pin 1 marked by notch or dot; thermal pad not present.
| 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 ports 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 - requires external decoupling and stable reference source. |
| AN0–AN11 | Analog input | 12-channel 10-bit ADC inputs; AN0/AN1 double as DA1/DA0 outputs - enables mixed-signal feedback loops without external DACs. |
| TRCIOA–TRCIOD, TRCCLK, TRCTRG | Timer RC I/O | Four general-purpose I/O pins plus clock/trigger inputs for 16-bit Timer RC - supports input capture, PWM output, and encoder interface. |
| UART0/1/2 signals (TXD/RXD/CLK/CTS/RTS/SCL/SDA) | Serial interface | Three independent UARTs; UART2 configurable as I²C master/slave - simplifies multi-device communication in appliance control panels. |
| RESET, MODE, XIN/XOUT, XCIN/XCOUT | System control | Reset input (active-low), mode select (VCC via resistor), and dual crystal oscillator interfaces - ensures robust boot and flexible clock sourcing. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent data flash erase/write and program execution - critical for over-the-air firmware updates in deployed appliances. |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support using UART0 and Timer RA - eliminates external LIN transceiver for cost-sensitive automotive body electronics. |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 3 V, 32 kHz XCIN) and stop mode (2.0 µA) - extends battery life in portable audio and remote-control subsystems. |
| Voltage Detection Circuit | Configurable voltage monitor with power-on reset and selectable detection levels - ensures reliable brown-out recovery across variable AC/DC supplies. |
| DTC (Data Transfer Controller) | Single-channel DMA-like controller with 23 activation sources - offloads CPU during ADC sampling, UART transfers, or memory moves. |
Applications
| Audio Equipment Control | Home Appliance Motor Drive |
|---|---|
Use Scenario: Digital audio receiver with volume, tone, and source selection controlled via front-panel buttons and IR remote. IC Role / Device Role / Timing Role: Main system controller executing UI logic, decoding IR commands, managing display, and generating analog audio bias via DAC outputs. Use Value: Integrated 12-channel ADC reads potentiometers and sensors; dual 8-bit DACs generate reference voltages for op-amp stages - reduces BOM count by 3 discrete components. | Use Scenario: Washing machine drum motor control with speed sensing, water level monitoring, and detergent dispensing actuation. IC Role / Device Role / Timing Role: Real-time motor commutation supervisor using Timer RC PWM outputs and ADC-based current sensing. Use Value: Hardware LIN interface communicates with door lock and water valve modules; 16-bit Timer RC delivers precise 3-phase PWM timing - improves motor efficiency by ≥8% vs. software-timed alternatives. |
| Office Equipment Power Management | Consumer IoT Sensor Hub |
Use Scenario: Multi-function printer with sleep/wake scheduling, paper jam detection, and USB-to-parallel bridge logic. IC Role / Device Role / Timing Role: Low-power system manager entering stop mode between jobs and waking on paper feed or network event. Use Value: 2.0 µA stop-mode current and fast wake-up (<10 µs) from external interrupt reduce standby power by 40% vs. legacy 8051 solutions. | Use Scenario: Smart thermostat aggregating temperature, humidity, and occupancy data before transmitting via Wi-Fi module. IC Role / Device Role / Timing Role: Sensor fusion aggregator with ADC oversampling, RTC timestamping, and UART-to-Wi-Fi protocol translation. Use Value: 10-bit ADC with sample-and-hold and sweep mode captures synchronized multi-sensor readings; BGO data flash stores calibration coefficients - enables field recalibration without firmware reflash. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21332CNFP | Same core, memory, and peripherals but rated for −20°C to +85°C ambient - lacks extended temperature qualification. | Suitable for indoor consumer devices only; not qualified for automotive under-hood or industrial outdoor enclosures. | Select R5F21332CNFP only when full −40°C operation is unnecessary and cost sensitivity outweighs environmental margin. |
| R5F21334CDFP | 16 KB program flash, 1.5 KB RAM, identical package and peripheral set - adds 8 KB ROM capacity for larger firmware images. | Required when bootloader, encryption stack, or multi-language UI exceeds 8 KB code space. | Choose R5F21334CDFP if future firmware expansion or secure boot requirements demand >8 KB flash. |
Compared with R5F21332CNFP, the R5F21332CDFP#V2 guarantees operation down to −40°C and supports harsher environments; compared with R5F21334CDFP, it trades flash capacity for lower cost and smaller memory footprint - ideal for cost-optimized, thermally constrained designs.
Availability
R5F21332CDFP#V2 is available at Aetrix Electronics and suitable for audio equipment control, home appliance motor drive, office equipment power management, and consumer IoT sensor hub applications requiring stable component supply across long production lifecycles.
Supply support for R5F21332CDFP#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, power, and SoC solutions for automotive, industrial, and consumer markets.
The R8C/33C Group was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integrated analog peripherals, LIN connectivity, and robust flash reliability in compact LQFP packages.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21332CDFP#V2?
The R5F21332CDFP#V2 operates at up to 20 MHz when supplied with 2.7–5.5 V (XIN clock), and supports reduced-frequency operation at 5 MHz down to 1.8 V. Its minimum instruction execution time is 50 ns under 20 MHz/2.7–5.5 V conditions, enabling responsive real-time control in R5F21332CDFP#V2-based systems.
Does the R5F21332CDFP#V2 support hardware LIN communication, and how is it implemented?
Yes, the R5F21332CDFP#V2 integrates a hardware LIN module compliant with LIN 2.0/2.1 standards, implemented using UART0 for serial framing and Timer RA for baud rate generation and synchronization. This eliminates external LIN transceivers in R5F21332CDFP#V2 designs, reducing bill-of-materials cost and PCB area in automotive body electronics.
How does the Background Operation (BGO) function work in the R5F21332CDFP#V2 data flash?
The R5F21332CDFP#V2 supports Background Operation on its 4×1 KB data flash blocks, allowing erase/write operations to proceed concurrently with CPU program execution. This enables seamless firmware updates, parameter storage, or calibration logging in R5F21332CDFP#V2 applications without interrupting real-time tasks or requiring system reset.
What are the low-power modes available on the R5F21332CDFP#V2, and what are their typical current draws?
The R5F21332CDFP#V2 offers wait mode (3.5 µA @ 3.0 V, 32 kHz XCIN) and stop mode (2.0 µA @ 3.0 V), both retaining RAM content and supporting wake-up via external interrupt or timer event. These ultra-low-power states make R5F21332CDFP#V2 suitable for battery-powered remote controls, thermostats, and sensor nodes requiring multi-year operation.
Can the R5F21332CDFP#V2's ADC perform simultaneous sampling across multiple channels?
No, the R5F21332CDFP#V2's 10-bit ADC does not support true simultaneous sampling; however, its sweep mode enables rapid sequential conversion of up to 12 channels with minimal software overhead and consistent timing. This provides effective multi-sensor acquisition for R5F21332CDFP#V2-based environmental monitoring and motor control applications.
R5F21332CDFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/3x/33C
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21332CDFP#V2 FAQ
1.How can I place an order for R5F21332CDFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21332CDFP#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 R5F21332CDFP#V2 reliable?
The price and inventory of R5F21332CDFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21332CDFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21332CDFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21332CDFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21332CDFP#V2?
R5F21332CDFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21332CDFP#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 R5F21332CDFP#V2?
For technical support, including R5F21332CDFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21332CDFP#V2 requirements.
6.How does Aetrix verify that R5F21332CDFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21332CDFP#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 R5F21332CDFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21332CDFP#V2?
All R5F21332CDFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21332CDFP#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 R5F21332CDFP#V2 part is unused and in its original packaging.
Return procedure for R5F21332CDFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21332CDFP#V2 Tags
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