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Renesas R5F21324CNSP#U0
- Part No.:
- R5F21324CNSP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F21324CNSP#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,254
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Product details
Overview
R5F21324CNSP from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 16 KB program flash, 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 audio and office equipment.
For engineers reviewing the R5F21324CNSP datasheet, R5F21324CNSP pinout, R5F21324CNSP application, or R5F21324CNSP equivalent, key selection considerations include its 20-pin LSSOP package, -20°C to +85°C N-version temperature grade, on-chip high-speed/low-speed oscillators, and hardware LIN support for automotive body electronics integration.
Technical Context
The R5F21324CNSP 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 at 0C000h–0FFFFh, data flash at 03000h–03FFFh, and RAM at 00400h–009FFh.
Peripheral integration includes Timer RA/RB/RC/RE, UART0/UART2 (with I²C mode), SSU, LIN module (using Timer RA and UART0), 2-channel Comparator B, voltage detection circuit (3 levels), and DTC with 21 activation sources - all managed via dedicated SFRs mapped to fixed address ranges (e.g., TRACR at 0100h, U2MR at 00A8h).
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 processing |
| Memory | 16 KB program flash (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); supports XIN/XCIN crystal and on-chip oscillators |
| Power Consumption | Typ. 6.5 mA @ 5.0 V/20 MHz; 3.5 µA in wait mode (32 kHz XCIN); 2.0 µA in stop mode |
| Analog Peripherals | 10-bit A/D converter (4 channels, sample-and-hold, sweep mode); 2-channel Comparator B with reference inputs |
| Communication | UART0 + UART2 (I²C-capable), SSU, hardware LIN module (Timer RA + UART0), and I²C bus (shared with SSU) |
| Timers | Timer RA (8-bit), RB (8-bit PWM), RC (16-bit, 4 capture/compare registers), RE (8-bit real-time clock) |
| Package | 20-pin LSSOP (PLSP0020JB-A, 0.65 mm pitch), surface-mount compatible with compact PCB layouts |
Pinout & Package
Package: 20-pin LSSOP (PLSP0020JB-A, 0.65 mm pin pitch), RoHS-compliant, rated for -20°C to +85°C ambient operation (N version).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1_0 / AN8 / KI0 | Analog input / key interrupt / timer trigger | Supports A/D conversion on channel 8, key wake-up, and TRCIOD timer input |
| P1_4 / TXD0 / TRCCLK | UART0 transmit / timer clock input | Drives serial output and provides external clock source for Timer RC |
| P1_5 / INT1 / RXD0 / TRAIO | Interrupt / UART0 receive / timer I/O | Enables edge-triggered interrupt, serial data input, and Timer RA bidirectional signal |
| P3_7 / SDA2 / SSO / TRAO | I²C data / SSU output / timer output | Shared pin for I²C-bus communication, synchronous serial output, and Timer RA output |
| P4_5 / ADTRG / INT0 | A/D trigger / interrupt input | Starts analog conversion on external event and serves as general-purpose interrupt source |
| XIN / XCIN | Clock input (main / sub) | Accepts 20 MHz ceramic resonator (XIN) or 32 kHz crystal (XCIN) for dual-clock domain operation |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and SFRs to power-on state |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash programming/erasure proceeds concurrently with CPU code execution, enabling seamless firmware field updates |
| Hardware LIN Module | Dedicated LIN protocol support via Timer RA and UART0 eliminates software bit-banging overhead and ensures timing compliance |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 32 kHz) and stop mode (2.0 µA) enable battery-powered operation in remote controls and sensors |
| Integrated Voltage Detection | Three-level voltage monitor (VDD detect, VD0/VD1 selectable) provides configurable brown-out reset and system supervision |
| Real-Time Clock (Timer RE) | 8-bit timer with calendar mode (seconds, minutes, hours, weekday) using low-speed XCIN oscillator for timekeeping during sleep |
| Programmable I/O Ports | 15 CMOS I/O pins with software-selectable pull-up resistors and high-current drive capability for direct LED/relay interfacing |
Applications
| Audio System Control | Office Equipment Motor Drive |
|---|---|
Use Scenario: Embedded controller in portable CD player managing disc motor speed, laser focus, and user interface buttons. IC Role / Device Role / Timing Role: Primary MCU executing servo algorithms, decoding IR commands, and driving display segments via GPIO. Use Value: Integrated 10-bit A/D reads photodiode feedback; hardware LIN interfaces with remote panel; low-power modes extend battery life. |
Use Scenario: Motor control unit in multifunction printer regulating paper feed, scanner lamp intensity, and toner delivery timing. IC Role / Device Role / Timing Role: Real-time motion controller synchronizing stepper motor phases and monitoring current sense via A/D. Use Value: Timer RC's 16-bit PWM and capture/compare registers enable precise motor commutation; 1.5 KB RAM buffers print job data. |
| Consumer Appliance UI Panel | Home Automation Sensor Hub |
Use Scenario: Touchless control interface in microwave oven detecting keypad proximity and managing cooking timers. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive sensing, buzzer feedback, and real-time countdown display. Use Value: Key input interrupts (KI0–KI3) provide low-latency button response; Timer RE maintains accurate cooking duration without external RTC. |
Use Scenario: Central node in smart lighting system aggregating occupancy, ambient light, and temperature sensor data. IC Role / Device Role / Timing Role: Sensor fusion hub performing A/D sampling, I²C peripheral polling, and wireless module handshaking. Use Value: Dual UARTs enable simultaneous Zigbee coordinator and local debug port; data flash stores calibration coefficients across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21324CDSP | Same core, memory, and peripherals but rated for -40°C to +85°C (D version) vs. -20°C to +85°C (N version) | Required for industrial or automotive under-hood environments where extended temperature range is mandatory | Select R5F21324CDSP when operating below -20°C; otherwise R5F21324CNSP suffices for consumer-grade applications |
| R5F21322CNSP | 8 KB program ROM (vs. 16 KB), 1 KB RAM (vs. 1.5 KB), identical peripherals and package | Suitable for simpler firmware with smaller code footprint and reduced RAM usage, e.g., basic timer-based appliances | Choose R5F21322CNSP to reduce BOM cost where application logic fits within 8 KB and does not require extra RAM headroom |
Compared with R5F21324CDSP, the R5F21324CNSP offers lower cost and sufficient thermal margin for indoor consumer use; compared with R5F21322CNSP, it provides double program memory and 512 bytes more RAM for feature-rich firmware and data buffering.
Availability
R5F21324CNSP is available at Aetrix Electronics and suitable for electronic household appliances, office equipment, and audio equipment requiring stable component supply across long-lifecycle consumer programs.
Supply support for R5F21324CNSP 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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and consumer markets.
The R8C/32C Group, including R5F21324CNSP, was designed for cost-sensitive, low-power embedded control in consumer electronics-emphasizing EMI/EMS robustness, integrated analog peripherals, and hardware-assisted communication protocols.
FAQ
What is the maximum operating frequency of the R5F21324CNSP and at what supply voltage?
The R5F21324CNSP achieves a maximum operating frequency of 20 MHz when powered at VCC = 2.7 V to 5.5 V. At lower supply voltages (1.8 V to 5.5 V), the maximum frequency reduces to 5 MHz to ensure reliable operation. This dual-frequency specification allows flexible power/performance trade-offs in battery-powered or wide-input-voltage designs.
Does the R5F21324CNSP support in-circuit debugging and flash reprogramming?
Yes, the R5F21324CNSP includes on-chip debug functionality and an on-board flash rewrite capability. These features allow full-cycle development-including breakpoint setting, register inspection, and live memory modification-without requiring external emulators. The background operation (BGO) function further enables flash updates while the application continues running.
How many analog input channels does the R5F21324CNSP A/D converter support, and what is its resolution?
The R5F21324CNSP integrates a 10-bit resolution A/D converter with four dedicated analog input channels (AN8–AN11). It includes sample-and-hold circuitry and sweep mode for sequential conversion, making it suitable for monitoring multiple sensor signals-such as thermistors, potentiometers, or light sensors-in consumer appliance interfaces.
What package type and pin count does the R5F21324CNSP use?
The R5F21324CNSP uses a 20-pin LSSOP package (package code PLSP0020JB-A, previously 20P2F-A) with 0.65 mm pin pitch. This compact, surface-mount package supports automated assembly and fits space-constrained PCB layouts typical in audio players, remote controls, and small office equipment.
Is hardware LIN communication supported on the R5F21324CNSP, and how is it implemented?
Yes, the R5F21324CNSP includes a dedicated hardware LIN module implemented using Timer RA and UART0. This offloads LIN protocol timing, checksum generation, and frame handling from firmware-ensuring strict compliance with LIN 2.x specifications and freeing CPU resources for application tasks like motor control or UI management.
R5F21324CNSP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- R8C/3x/32C
- Packaging:
- Tube
- 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#U0 FAQ
1.How can I place an order for R5F21324CNSP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21324CNSP#U0 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#U0 reliable?
The price and inventory of R5F21324CNSP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21324CNSP#U0 is usually 5 days.
3.What payment methods are accepted for R5F21324CNSP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21324CNSP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21324CNSP#U0?
R5F21324CNSP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21324CNSP#U0 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#U0?
For technical support, including R5F21324CNSP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21324CNSP#U0 requirements.
6.How does Aetrix verify that R5F21324CNSP#U0 is sourced from the original manufacturer or authorized distributors?
All R5F21324CNSP#U0 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#U0 meets industry standards.
7.What is the process for return or replacement of R5F21324CNSP#U0?
All R5F21324CNSP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21324CNSP#U0, 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#U0 part is unused and in its original packaging.
Return procedure for R5F21324CNSP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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