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Renesas R5F21272SYFP#V2
- Part No.:
- R5F21272SYFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21272SYFP#V2.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,309
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Product details
Overview
R5F21272SYFP#V2 from Renesas Electronics is a 16-bit R8C/27 Group single-chip microcontroller with 8 KB flash program memory, 1 KB × 2 data flash (2 KB total), 512 bytes RAM, and 32-pin LQFP (PLQP0032GB-A) packaging. It integrates an R8C CPU core, 12-channel 10-bit A/D converter, dual UARTs, I²C interface, hardware LIN module, RTC-capable Timer RE, and operates from 2.2–5.5 V across –40 to +85°C (D version). It targets embedded control in industrial sensors and appliance subsystems.
For engineers reviewing the R5F21272SYFP#V2 datasheet, R5F21272SYFP#V2 pinout, R5F21272SYFP#V2 application, or R5F21272SYFP#V2 equivalent, key selection criteria include on-chip data flash endurance (10,000 erase/write cycles), real-time clock support via Timer RE, LIN bus compliance using UART0 and Timer RA, low-power stop mode current (0.7 µA at 3.0 V), and compatibility with 32 kHz XCIN crystal for RTC operation.
Technical Context
The R5F21272SYFP#V2 implements the R8C CPU core with 89 fundamental instructions and executes at 50 ns minimum instruction time (20 MHz XIN, 3.0–5.5 V). Its memory architecture separates 8 KB program flash from two independent 1 KB data flash blocks-enabling simultaneous code execution and nonvolatile parameter storage without erasing application firmware.
Peripheral integration includes UART0/UART1 with LIN protocol support (hardware-assisted), Timer RE configured for real-time clock with compare match, and a 12-channel 10-bit A/D converter with internal reference voltage input (VREF). Clock generation supports external crystal (XIN/XOUT), high-speed on-chip oscillator (adjustable), and 32 kHz XCIN/XCOUT for RTC-only active in D/N versions like R5F21272SYFP#V2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions; enables compact firmware and deterministic timing for real-time control loops. |
| Memory | 8 KB flash program ROM + 2 KB data flash (1 KB × 2 blocks); allows field-upgradable parameters without reprogramming main firmware. |
| A/D Converter | 10-bit resolution, 12 input channels (AN0–AN11); supports analog sensing of temperature, voltage, or sensor outputs in industrial interfaces. |
| Timers | Timer RA/RB (8-bit), Timer RC (16-bit input capture/output compare), Timer RE (RTC + compare match); enables precise PWM, event timing, and calendar-based wake-up. |
| Serial Interfaces | 2× UART (UART0/UART1), 1× I²C, 1× clock-synchronous serial I/O with chip select, and hardware LIN (UART0 + Timer RA); supports multi-protocol communication in automotive and appliance networks. |
| Supply & Temp | 2.2–5.5 V operating voltage; –40 to +85°C ambient range (D version); qualified for industrial-grade reliability in harsh environments. |
| Low-Power Modes | Stop mode draws 0.7 µA at 3.0 V; wait mode draws 2.0 µA with 32 kHz XCIN running; enables battery-backed RTC and ultra-low standby power. |
Pinout & Package
Package: 32-pin molded-plastic LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / ground | Core and I/O supply pins; decoupling required per Renesas layout guidelines to ensure noise immunity during A/D conversion and LIN transmission. |
| RESET | Active-low reset input | Asynchronous reset signal; must be held low ≥100 ns after power stabilization to guarantee reliable initialization. |
| XIN / XOUT | External crystal oscillator interface | Supports 5–20 MHz crystals; enables precise timing for UART baud rates and real-time control loops. |
| XCIN / XCOUT | 32 kHz RTC crystal interface | Dedicated low-frequency oscillator path for Timer RE; only functional in D/N versions like R5F21272SYFP#V2. |
| P0_0–P0_7 | General-purpose I/O with analog inputs | Eight pins support both digital I/O and A/D inputs AN0–AN7; enables mixed-signal peripheral interfacing without external muxing. |
| TXD0 / RXD0 | UART0 transmit/receive | Full-duplex asynchronous serial interface; used for debug console, host MCU communication, or LIN master node implementation. |
| SCL / SDA | I²C bus interface | Open-drain bidirectional lines supporting standard-mode (100 kbps) and fast-mode (400 kbps) I²C; connects to EEPROMs or sensors. |
| TREO | Timer RE output | RTC alarm or periodic interrupt output; drives external logic or wakes CPU from stop mode on scheduled events. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip data flash | Two independent 1 KB blocks (10,000 erase/write cycles) enable robust parameter storage and firmware update staging without disrupting main application code. |
| Hardware LIN module | Integrated LIN 2.0/2.1 support via UART0 and Timer RA eliminates need for external LIN transceiver in slave-node applications like HVAC actuators. |
| Real-time clock (RTC) | Timer RE with 32 kHz XCIN input provides calendar/timekeeping with compare match interrupt; retains accuracy during low-power stop mode. |
| 12-channel 10-bit A/D | Simultaneous sampling not supported, but channel scan mode allows sequential conversion of up to 12 analog signals (e.g., thermistors, potentiometers). |
| Low-voltage operation | Operates down to 2.2 V (D version), enabling direct connection to 3.3 V or 2.5 V system rails without level-shifting for I/O and peripherals. |
Applications
| Industrial Sensor Node | Smart Appliance Control |
|---|---|
Use Scenario: Standalone temperature/humidity sensor with local display and wireless reporting. IC Role / Device Role / Timing Role: Main controller executing sensor polling, calibration math, LCD refresh, and UART-based data forwarding. Use Value: On-chip data flash stores calibration coefficients and device ID; RTC enables timestamped logging; 10-bit A/D resolves sub-degree thermal changes. |
Use Scenario: Washing machine drum motor control and user interface subsystem. IC Role / Device Role / Timing Role: Dedicated MCU managing keypad scan, LED indicators, buzzer, and LIN communication with main board. Use Value: Hardware LIN reduces software overhead; 8-bit timers generate precise PWM for buzzer tone; I/O ports drive LEDs directly with internal pull-ups. |
| Automotive Body Controller | Energy Monitoring Module |
Use Scenario: Door lock actuator with position feedback and fault detection. IC Role / Device Role / Timing Role: LIN slave node interpreting commands, driving H-bridge, reading hall-effect sensors, and reporting status. Use Value: Integrated LIN module ensures protocol compliance; 12-channel A/D monitors motor current, voltage, and temperature for safety shutdown. |
Use Scenario: DIN-rail mounted electricity meter front-end capturing voltage/current waveforms. IC Role / Device Role / Timing Role: Signal conditioner and preprocessor feeding sampled data to host processor via UART or I²C. Use Value: 10-bit A/D with 12 inputs supports multi-phase voltage/current sensing; low-power stop mode extends battery backup runtime during outages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21274SDFP | 16 KB program flash, 1 KB × 2 data flash, same package and peripheral set; no change in clock, A/D, or timer specs. | Requires larger firmware image; suitable when bootloader, diagnostics, or future feature expansion demand extra code space. | Select R5F21274SDFP if firmware size exceeds 8 KB and data flash usage remains identical. |
| R5F21262SDFP | R8C/26 Group part: no data flash; 8 KB program flash only; otherwise identical pinout, peripherals, and electrical specs. | Cannot store runtime parameters nonvolatively without external EEPROM; unsuitable for applications requiring field-configurable settings. | Choose R5F21262SDFP only if data flash is unnecessary and cost reduction is prioritized over configuration flexibility. |
Compared with R5F21272SYFP#V2, R5F21274SDFP offers more program memory for complex firmware while retaining identical data flash and peripherals; R5F21262SDFP removes data flash entirely, reducing cost but eliminating embedded parameter storage capability-making it viable only in fixed-function deployments.
Availability
R5F21272SYFP#V2 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance subsystems, and automotive body electronics requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for R5F21272SYFP#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 industrial, automotive, and infrastructure markets.
The R8C/27 Group, including R5F21272SYFP#V2, was designed for cost-sensitive, low-power embedded control applications requiring integrated data flash, LIN communication, and robust analog interfaces in consumer and industrial equipment.
FAQ
What is the data flash endurance specification for R5F21272SYFP#V2?
R5F21272SYFP#V2 features two independent 1 KB data flash blocks rated for 10,000 erase/write cycles each. This endurance enables reliable storage of calibration data, device configuration, or usage logs in field-deployed systems without premature wear-out. The specification is confirmed in Renesas documentation REJ03B0168-0210, Table 1.2.
Does R5F21272SYFP#V2 support real-time clock functionality?
Yes, R5F21272SYFP#V2 supports real-time clock operation via Timer RE when paired with a 32 kHz crystal on XCIN/XCOUT pins. This configuration is validated for D-version parts like R5F21272SYFP#V2 and provides calendar/timekeeping with compare-match interrupts-even in stop mode with 0.7 µA current draw.
Is R5F21272SYFP#V2 pin-compatible with other R8C/27 Group MCUs?
Yes, R5F21272SYFP#V2 uses the PLQP0032GB-A 32-pin LQFP package shared across all R8C/27 Group variants (e.g., R5F21274SDFP, R5F21276JFP). Pin functions-including I/O, analog inputs, UART, I²C, and XCIN/XCOUT-are identical, enabling footprint reuse across memory and temperature grade variants.
What LIN protocol versions does R5F21272SYFP#V2 support?
R5F21272SYFP#V2 implements hardware-assisted LIN 2.0 and LIN 2.1 protocols using UART0 and Timer RA, as documented in the R8C/27 Group hardware manual. It handles break field detection, sync field, and PID checksum validation in hardware-reducing CPU load versus software-only implementations.
Can R5F21272SYFP#V2 operate from a 3.3 V supply?
Yes, R5F21272SYFP#V2 operates across 2.2–5.5 V, making it fully compatible with 3.3 V system rails. At 3.0 V, it achieves 10 MHz operation (100 ns min. instruction time) and maintains full peripheral functionality-including A/D conversion, UART, and I²C-with typical current draw of 6 mA.
R5F21272SYFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/27
- 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:
- LED, POR, Voltage Detect, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21272SYFP#V2 FAQ
1.How can I place an order for R5F21272SYFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21272SYFP#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 R5F21272SYFP#V2 reliable?
The price and inventory of R5F21272SYFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21272SYFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21272SYFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21272SYFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21272SYFP#V2?
R5F21272SYFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21272SYFP#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 R5F21272SYFP#V2?
For technical support, including R5F21272SYFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21272SYFP#V2 requirements.
6.How does Aetrix verify that R5F21272SYFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21272SYFP#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 R5F21272SYFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21272SYFP#V2?
All R5F21272SYFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21272SYFP#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 R5F21272SYFP#V2 part is unused and in its original packaging.
Return procedure for R5F21272SYFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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