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Renesas R5F21324CNSP#W4
- Part No.:
- R5F21324CNSP#W4
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F21324CNSP#W4.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,487
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Product details
Overview
R5F21324CNSP#W4 from Renesas Electronics is a 16-bit R8C CPU core microcontroller 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 LIN hardware module, 10-bit A/D converter (4 channels), and real-time clock (Timer RE), targeting embedded control in consumer appliances and office equipment.
For engineers reviewing the R5F21324CNSP#W4 datasheet, R5F21324CNSP#W4 pinout, R5F21324CNSP#W4 application, or R5F21324CNSP#W4 equivalent, key selection considerations include its 20-pin LSSOP package, -20°C to +85°C temperature grade (N version), on-chip voltage detection (3 levels), low-power wait/stop modes (down to 3.5 µA / 2.0 µA), and hardware LIN compliance using Timer RA and UART0.
Technical Context
The R5F21324CNSP#W4 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 0C000h, data flash at 03000h–03FFFh, and RAM at 00400h–009FFh.
Peripheral integration includes four independent timers (RA/RB/RC/RE), dual UARTs (UART0/UART2 with I²C mode), SSU/I²C shared interface, 2-channel Comparator B, and DTC with 21 activation sources. Clock generation supports XIN (up to 20 MHz), XCIN (32 kHz), and two on-chip oscillators (high-speed adjustable, low-speed).
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/control math |
| Memory | 16 KB flash program ROM, 1.5 KB RAM, 4 KB data flash (1 KB × 4 blocks) with BGO for firmware updates without halting execution |
| Operating Frequency | 20 MHz max (VCC = 2.7–5.5 V); 5 MHz min (VCC = 1.8–5.5 V) - enables high-speed control loops while maintaining wide supply tolerance |
| Power Consumption | 6.5 mA typical at 5.0 V/20 MHz; 3.5 µA in wait mode (32 kHz XCIN); 2.0 µA in stop mode - suitable for battery-backed or energy-sensitive systems |
| Analog Peripherals | 10-bit A/D converter (4 channels, sample-and-hold, sweep mode); 2× Comparator B; internal reference voltage inputs (IVREF1/IVREF3) |
| Communication | Hardware LIN module (Timer RA + UART0); UART0/UART2 (I²C-capable); SSU/I²C shared bus; 21-source DTC for autonomous data movement |
| Package & Temp | 20-pin LSSOP (PLSP0020JB-A, 0.65 mm pitch); industrial-grade N version (-20°C to +85°C) |
Pinout & Package
20-pin LSSOP package (PLSP0020JB-A, 0.65 mm pitch), surface-mount, lead-free compliant. Pin 1 marked by notch or dot; thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1_0 / AN8 / KI0 | Analog input / key interrupt / timer input | Supports A/D conversion on channel 8, key wake-up, and TRCIOD timer trigger - enables touch-sensing or user-interface monitoring |
| P1_4 / TXD0 / TRCCLK | UART0 transmit / timer clock input | Shared function allows UART0 serial output while simultaneously feeding external clock to Timer RC - simplifies synchronous peripheral interfacing |
| P3_7 / SDA2 / SSO / TRAO | I²C data / SSU output / timer output | Tri-functional pin supports I²C slave/master communication, SPI-like SSU transfers, and Timer RA output - reduces external logic in multi-protocol designs |
| P4_5 / INT0 / RXD2 / ADTRG | Interrupt / UART2 receive / A/D trigger | Enables edge-triggered wake-up, serial command reception, and precise analog sampling synchronization - critical for responsive sensor subsystems |
| XIN / XCIN | Primary/secondary crystal oscillator inputs | Dual crystal support allows simultaneous high-speed system clock (XIN) and low-power RTC clock (XCIN @ 32 kHz) - eliminates need for external RTC IC |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU execution - enables field firmware updates without system interruption |
| Hardware LIN Module | Full LIN 2.0/2.1 compliance via dedicated UART0 + Timer RA resources - eliminates software LIN stack overhead and timing jitter |
| Real-Time Clock (Timer RE) | Integrated calendar counter (seconds/minutes/hours/days) with compare output - provides accurate timekeeping without external components |
| Voltage Detection Circuit | Three configurable detection levels (VDD monitor + two selectable thresholds) with reset and interrupt outputs - ensures robust brown-out protection across varying supply conditions |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 32 kHz) and stop mode (2.0 µA) with selective peripheral wake-up - extends battery life in portable or maintenance-free applications |
Applications
| Home Appliance Control | Office Equipment Motor Control |
|---|---|
Use Scenario: Microcontroller in washing machine main board managing water valve timing, motor phase sequencing, and user interface feedback. IC Role / Device Role / Timing Role: Central controller executing real-time motor commutation, A/D-based current sensing, and LIN communication with display module. Use Value: Integrated LIN, 10-bit A/D, and hardware PWM generation reduce BOM count and improve timing determinism versus discrete solutions. | Use Scenario: Embedded controller in laser printer paper feed mechanism requiring precise stepper motor positioning and jam detection. IC Role / Device Role / Timing Role: Timing-critical motion controller using Timer RC capture/compare for encoder feedback and Timer RB PWM for motor drive. Use Value: 16-bit Timer RC with 4 capture/compare registers enables sub-millisecond position resolution without external timing ICs. |
| Audio System Power Management | Consumer Remote-Control Receiver |
Use Scenario: Standby power supervisor in AV receiver that monitors IR commands, manages rail sequencing, and logs usage statistics. IC Role / Device Role / Timing Role: Low-power manager using stop mode (2.0 µA), wake-on-INT0 (IR input), and data flash for non-volatile event logging. Use Value: On-chip voltage detection and BGO-enabled data flash allow reliable state retention and firmware updates during infrequent wake cycles. | Use Scenario: IR remote decoder in set-top box front panel, detecting button presses and transmitting commands over LIN to main processor. IC Role / Device Role / Timing Role: Key input interrupt handler (KI0–KI3) with hardware debouncing, LIN transmitter (UART0 + Timer RA), and real-time clock for timestamping. Use Value: Dedicated key interrupt inputs and hardware LIN eliminate external logic gates and UART transceivers, reducing PCB area and component cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21324CDSP | Same core, memory, and peripherals; extended temperature range (-40°C to +85°C) and D-version qualification | Required for automotive cabin modules or industrial outdoor enclosures where ambient extremes exceed N-version limits | Select when operating environment exceeds -20°C minimum; otherwise R5F21324CNSP#W4 offers identical functionality at lower cost |
| R5F21322CNSP | Identical package and peripherals but reduced memory: 8 KB program ROM, 1 KB RAM, same 4 KB data flash | Suitable for simpler control tasks with smaller firmware footprint and less runtime data storage requirement | Choose for cost-sensitive volume production where code size remains under 8 KB and RAM usage stays below 1 KB |
Compared with R5F21324CDSP, the R5F21324CNSP#W4 trades extended temperature rating for lower procurement cost and identical feature set in benign environments; versus R5F21322CNSP, it delivers 100% more program ROM and 50% more RAM for complex algorithms or multi-tasking firmware without changing PCB layout.
Availability
R5F21324CNSP#W4 is available at Aetrix Electronics and suitable for home appliance control, office equipment motor management, and audio system power supervision requiring stable component supply and long-term industrial availability.
Supply support for R5F21324CNSP#W4 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/32C Group, including R5F21324CNSP#W4, was designed for cost-sensitive, low-power embedded control in consumer and office equipment - emphasizing integration of LIN, A/D, RTC, and BGO flash to minimize external components.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21324CNSP#W4?
The R5F21324CNSP#W4 operates at up to 20 MHz when supplied between 2.7 V and 5.5 V. At lower voltages (1.8 V to 5.5 V), the maximum frequency is reduced to 5 MHz to ensure stable operation. This dual-frequency capability allows flexible design across battery-powered and line-powered applications while maintaining compatibility with common 3.3 V and 5 V system rails.
Does the R5F21324CNSP#W4 support hardware LIN communication, and how is it implemented?
Yes, the R5F21324CNSP#W4 integrates a dedicated hardware LIN module compliant with LIN 2.0/2.1 standards. It combines UART0 for serial framing and Timer RA for precise baud rate generation and synchronization, eliminating software bit-banging. This implementation ensures deterministic timing, reduced CPU load, and robust error handling - essential for automotive body electronics and appliance inter-module communication.
What memory resources does the R5F21324CNSP#W4 provide, and how is data flash used in practice?
The R5F21324CNSP#W4 includes 16 KB of flash program ROM, 1.5 KB of RAM, and 4 KB of data flash organized as four 1-KB blocks. Data flash supports background operation (BGO), enabling firmware parameter storage, calibration data logging, or field-upgradable configuration tables without halting CPU execution - critical for uninterrupted operation in industrial controllers and smart appliances.
How does the R5F21324CNSP#W4 manage low-power operation, and what are the lowest current consumption figures?
The R5F21324CNSP#W4 offers multiple low-power modes: wait mode draws 3.5 µA (VCC = 3.0 V, 32 kHz XCIN active), and stop mode consumes just 2.0 µA (same conditions). Both modes retain RAM content and support wake-up via interrupts, key inputs, or external triggers. These figures enable multi-year battery life in remote controls, sensor nodes, and standby subsystems without compromising responsiveness.
What is the package type and pin count of the R5F21324CNSP#W4, and is it RoHS-compliant?
The R5F21324CNSP#W4 uses a 20-pin LSSOP package (PLSP0020JB-A, 0.65 mm pitch) and is RoHS-compliant and lead-free. This compact surface-mount package supports automated assembly and provides sufficient I/O for mid-complexity control applications while maintaining thermal performance suitable for enclosed consumer electronics housings.
R5F21324CNSP#W4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- R8C/3x/32C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- 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:
- 15
- 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 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21324CNSP#W4 FAQ
1.How can I place an order for R5F21324CNSP#W4 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21324CNSP#W4 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 R5F21324CNSP#W4 reliable?
The price and inventory of R5F21324CNSP#W4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21324CNSP#W4 is usually 5 days.
3.What payment methods are accepted for R5F21324CNSP#W4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21324CNSP#W4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21324CNSP#W4?
R5F21324CNSP#W4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21324CNSP#W4 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 R5F21324CNSP#W4?
For technical support, including R5F21324CNSP#W4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21324CNSP#W4 requirements.
6.How does Aetrix verify that R5F21324CNSP#W4 is sourced from the original manufacturer or authorized distributors?
All R5F21324CNSP#W4 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 R5F21324CNSP#W4 meets industry standards.
7.What is the process for return or replacement of R5F21324CNSP#W4?
All R5F21324CNSP#W4 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21324CNSP#W4, 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 R5F21324CNSP#W4 part is unused and in its original packaging.
Return procedure for R5F21324CNSP#W4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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