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Renesas R5F21324MNSP#U0
- Part No.:
- R5F21324MNSP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F21324MNSP#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,584
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Product details
Overview
R5F21324MNSP from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 16 KB flash program memory, 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), integrates UART0/UART2 (with I²C mode), LIN hardware module, 10-bit × 4-channel ADC, and real-time clock timer RE - deployed in consumer audio and office equipment control systems.
For engineers reviewing the R5F21324MNSP datasheet, R5F21324MNSP pinout, R5F21324MNSP application, or R5F21324MNSP equivalent, key selection criteria include its 20-pin LSSOP package, -20°C to +85°C N-version temperature grade, integrated LIN transceiver support via Timer RA + UART0, low-power stop mode (2.0 µA), and on-chip debug capability.
Technical Context
The R5F21324MNSP 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 four independent timers (RA/RB/RC/RE), dual UARTs with shared I²C/SSU functionality, hardware LIN protocol engine, two comparator units (A/B), voltage detection circuitry with three selectable levels, and DTC for autonomous data transfers - all coordinated via 69 interrupt vectors with 7 priority levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min instruction time @ 20 MHz |
| Memory | 16 KB flash program ROM, 1.5 KB RAM, 4 KB data flash (1 KB × 4 blocks, BGO supported) |
| Operating Voltage | 1.8–5.5 V - enables single-supply operation across battery and line-powered systems |
| Temperature Range | -20°C to +85°C (N version) - suitable for commercial/industrial ambient environments |
| Low-Power Modes | Wait mode (3.5 µA @ 3.0 V, 32 kHz XCIN), stop mode (2.0 µA @ 3.0 V) - extends battery life in portable devices |
| Peripherals | UART0/UART2 (I²C-capable), LIN module (Timer RA + UART0), 10-bit × 4-channel ADC, 4 timers, 2 comparators, voltage detector |
| Package | 20-pin LSSOP (PLSP0020JB-A, 0.65 mm pitch) - compact surface-mount footprint for space-constrained PCBs |
Pinout & Package
20-pin LSSOP package (PLSP0020JB-A), 0.65 mm pin pitch, JEDEC standard footprint compatible with automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1_0 / AN8 / LVCMP1 / KI0 | Analog input / comparator A input / key interrupt | Enables analog sensing, low-voltage comparison, and wake-up from key press events |
| P1_4 / TXD0 / TRCCLK | UART0 transmit / timer RC clock input | Shares pin between serial communication and external timer synchronization |
| P3_7 / SDA2 / SSO / TRAO | I²C data / SSU output / timer RA output | Multi-function pin supporting I²C bus, synchronous serial interface, and PWM waveform generation |
| P4_6 / XIN / XCIN | Crystal oscillator input / 32 kHz clock input | Dual-role clock input supports high-speed system timing and low-power RTC operation |
| RESET | Active-low reset input | Hardware reset initiation with internal power-on reset and voltage detection circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash programming/erasure while executing code - enables firmware updates without halting application |
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via Timer RA + UART0 - eliminates need for external LIN transceiver in basic implementations |
| Real-Time Clock (Timer RE) | 8-bit timer with dedicated registers for seconds/minutes/hours/days-of-week - provides calendar timekeeping without external RTC IC |
| Voltage Detection Circuit | Three-level detection (VDD monitor + two configurable thresholds) - enables brown-out protection and system state management |
| On-Chip Debug Interface | Fully integrated debug port with flash rewrite capability - reduces development cycle time and eliminates external emulator dependency |
Applications
| Audio System Control | Office Equipment Motor Control |
|---|---|
Use Scenario: Managing volume, source selection, equalization, and display in portable audio players and desktop speakers. IC Role / Device Role / Timing Role: Main system controller executing real-time audio processing tasks and user interface logic. Use Value: Integrated 10-bit ADC reads potentiometer inputs; UART2 with I²C mode interfaces with display drivers and sensor ICs. | Use Scenario: Controlling paper feed, print head movement, and status reporting in inkjet printers and multifunction peripherals. IC Role / Device Role / Timing Role: Dedicated motor timing controller coordinating stepper/servo drive signals and feedback monitoring. Use Value: Timer RC's 16-bit resolution and 4 capture/compare registers enable precise PWM generation for motor phase control. |
| Home Appliance UI Panel | LIN-Based Automotive Subsystem |
Use Scenario: Handling button presses, LED indicators, buzzer alerts, and temperature sensor readings in microwave ovens and washing machines. IC Role / Device Role / Timing Role: User interface coordinator with key interrupt (KI0–KI3), comparator-based door latch sensing, and real-time clock for cycle timing. Use Value: Low-power stop mode (2.0 µA) sustains UI responsiveness during standby; built-in voltage detection prevents erratic behavior during brown-out. | Use Scenario: Implementing seat position memory, mirror adjustment, or climate control node in automotive body electronics networks. IC Role / Device Role / Timing Role: LIN slave node managing local actuator control and diagnostic reporting over single-wire bus. Use Value: Hardware LIN module reduces software overhead; 16 KB flash accommodates LIN protocol stack plus application logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21324MDSP | Same core, memory, and peripherals; extended temperature range (-40°C to +85°C, D version) | Required for automotive under-hood or industrial outdoor deployments | Select when operating ambient exceeds -20°C minimum or requires AEC-Q100 alignment |
| R5F21322MNSP | 8 KB program ROM, 1 KB RAM, identical peripheral set and package | Suitable for cost-sensitive designs with reduced firmware complexity | Choose when application firmware fits within 8 KB and BOM cost optimization is critical |
Compared with R5F21324MDSP, the R5F21324MNSP offers lower temperature qualification but same feature set; versus R5F21322MNSP, it doubles program memory and increases RAM by 50%, enabling richer UI stacks and protocol handling.
Availability
R5F21324MNSP is available at Aetrix Electronics and suitable for audio equipment, office automation, and home appliance control systems requiring stable component supply and long-term production continuity.
Supply support for R5F21324MNSP 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 industrial, automotive, and IoT markets.
The R8C/32M Group, including R5F21324MNSP, was designed for cost-effective, low-power embedded control in consumer electronics - emphasizing integration of LIN, ADC, RTC, and flash BGO to reduce system component count.
FAQ
What is the maximum operating frequency of the R5F21324MNSP?
The R5F21324MNSP supports a maximum operating frequency of 20 MHz when powered at 2.7–5.5 V using the XIN clock source. At lower supply voltages (1.8–5.5 V), the maximum frequency is 5 MHz. The high-speed on-chip oscillator also provides programmable frequency adjustment for flexible clock sourcing without external crystals.
Does the R5F21324MNSP support in-circuit debugging?
Yes, the R5F21324MNSP includes an on-chip debug interface compliant with Renesas' standard debug protocol. This allows full read/write access to memory and registers, real-time execution control, and on-board flash rewrite - enabling development without external emulators and supporting field firmware updates.
How many analog input channels does the R5F21324MNSP ADC support?
The R5F21324MNSP integrates a 10-bit successive-approximation ADC with four dedicated analog input channels (AN8–AN11), each supporting sample-and-hold and sweep mode operation. External reference voltage can be applied via the VREF pin, and conversion triggers may originate from software, timer, or external ADTRG signal.
What LIN protocol versions are supported by the R5F21324MNSP hardware module?
The R5F21324MNSP implements a hardware-assisted LIN module compliant with LIN 2.0 and LIN 2.1 specifications. It uses Timer RA for baud rate generation and UART0 for data framing, reducing CPU load during LIN frame transmission/reception and supporting automatic checksum calculation and sync field detection.
Is the R5F21324MNSP pin-compatible with other members of the R8C/32M Group?
Yes, all R8C/32M Group MCUs - including R5F21321MNSP, R5F21322MNSP, and R5F21324MNSP - share the identical 20-pin LSSOP (PLSP0020JB-A) package and pin assignment. Firmware and PCB layout are interchangeable across this family, allowing memory-scaling upgrades without hardware redesign.
R5F21324MNSP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- R8C/3x/32M
- Packaging:
- Tray
- 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:
R5F21324MNSP#U0 FAQ
1.How can I place an order for R5F21324MNSP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21324MNSP#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 R5F21324MNSP#U0 reliable?
The price and inventory of R5F21324MNSP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21324MNSP#U0 is usually 5 days.
3.What payment methods are accepted for R5F21324MNSP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21324MNSP#U0 transactions.
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4.How is shipping managed for R5F21324MNSP#U0?
R5F21324MNSP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21324MNSP#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 R5F21324MNSP#U0?
For technical support, including R5F21324MNSP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21324MNSP#U0 requirements.
6.How does Aetrix verify that R5F21324MNSP#U0 is sourced from the original manufacturer or authorized distributors?
All R5F21324MNSP#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 R5F21324MNSP#U0 meets industry standards.
7.What is the process for return or replacement of R5F21324MNSP#U0?
All R5F21324MNSP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21324MNSP#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 R5F21324MNSP#U0 part is unused and in its original packaging.
Return procedure for R5F21324MNSP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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