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Renesas R5F212K2SYFP#V2
- Part No.:
- R5F212K2SYFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F212K2SYFP#V2.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F212K2SYFP#V2 from Renesas Electronics is an 8 KB flash-based 16-bit R8C/Tiny Series MCU in 32-pin LQFP, operating at up to 20 MHz (VCC = 3.0–5.5 V), featuring 10-bit × 9-channel A/D conversion, hardware LIN interface (via UART0 + Timer RA), and ultra-low-power stop mode (0.7 µA @ 3.0 V). It targets cost-sensitive industrial control and appliance motor management where compact size, integrated peripherals, and ambient temperature tolerance (−20 to 105°C) are critical.
For engineers reviewing the R5F212K2SYFP#V2 datasheet, R5F212K2SYFP#V2 pinout, R5F212K2SYFP#V2 application, or R5F212K2SYFP#V2 equivalent, key selection considerations include its Y-version extended temperature rating, absence of on-chip data flash (distinguishing it from R8C/2L Group), 25 CMOS I/O with selectable pull-up, and dual UART + PWM-capable Timer RD for motor phase control.
Technical Context
The R5F212K2SYFP#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and 1 Mbyte address space. Its instruction timing is tightly coupled to external crystal (XIN) frequency: 50 ns min at 20 MHz, 100 ns at 10 MHz, and 200 ns at 5 MHz - all validated across its full VCC range (2.2–5.5 V).
Peripheral integration includes four independent timers (RA–RD), with Timer RD supporting reset-synchronous three-phase PWM (6-pin output) and complementary PWM for inverter gate drive. The hardware LIN module relies on UART0 and Timer RA for protocol timing compliance, while the A/D converter includes sample-and-hold for stable 10-bit acquisition across nine analog inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny series: 89 instructions, 16×16→32-bit multiply, single-chip 1 Mbyte address space |
| Flash ROM / RAM | 8 KB program flash, 1 KB RAM - sufficient for small embedded control firmware with real-time ISR handling |
| Operating Voltage | 2.2–5.5 V - supports direct connection to 3.3 V or 5 V logic domains without level-shifting |
| Max Clock Frequency | 20 MHz (at VCC ≥ 3.0 V) - enables sub-100 ns instruction execution for deterministic timing-critical loops |
| A/D Converter | 10-bit resolution × 9 channels with sample-and-hold - suitable for sensor monitoring (e.g., thermistor, potentiometer) in HVAC or power tools |
| Temperature Range | −20 to +105°C (Y version) - qualified for under-hood automotive auxiliary modules and industrial motor drives |
| Low-Power Modes | Wait mode (23 µA), stop mode (0.7 µA) - enables battery-backed operation in standby states |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A, 7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC/AVCC | Power supply input / Analog reference rail | Dual-purpose pin: digital core and A/D converter supply; requires local decoupling to minimize noise coupling into analog section |
| VSS/AVSS | Ground return / Analog ground | Shared digital/analog ground plane recommended; separate AVSS trace improves A/D accuracy |
| XIN / XOUT | Ceramic resonator/crystal oscillator interface | Supports external 4–20 MHz crystals; internal feedback resistor eliminates need for external load capacitors |
| P0_0–P0_5, P1_0–P1_7, P2_0–P2_7, P3_3–P3_5, P4_5 | CMOS programmable I/O ports | 25 total pins; each configurable as input/output; pull-up resistors software-selectable - simplifies button sensing and LED driving |
| AN2, AN4–AN11 | Analog input channels | Nine dedicated A/D inputs mapped to port pins; VREF pin allows external reference voltage for improved measurement linearity |
| UART0 (TXD0/RXD0), UART2 (TXD2/RXD2) | Asynchronous serial interfaces | Dual UARTs enable simultaneous host communication and peripheral bridging (e.g., display + sensor hub) |
| Timer RD (TRDIOA0–TRDIOD1) | Three-phase PWM output bank | Six dedicated pins support complementary PWM generation with dead-time insertion - directly drives 3-phase inverter gate drivers |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Interface | Integrated LIN 2.0/2.1 support via UART0 + Timer RA - eliminates external LIN transceiver for basic node applications |
| High-Current Drive Ports | 8 pins rated for 20 mA sink/source - directly drive LEDs or small relays without external buffers |
| On-Chip Oscillators | High-speed (adjustable) and low-speed on-chip oscillators - enable clock source redundancy and fast wake-up from stop mode |
| Interrupt Architecture | 23 total sources (4 external, 15 internal, 4 software) with 7 priority levels - ensures deterministic response to time-critical events like overcurrent fault |
| Debug & Security | On-chip debug interface + ROM code protect + ID code check - enables field firmware updates and IP protection |
Applications
| Motor Control in Power Tools | Smart Thermostat Sensor Hub |
|---|---|
|
Use Scenario: Brushless DC motor commutation in cordless drills, requiring precise timing for hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, managing six-step commutation via Timer RD's complementary PWM outputs and reading hall sensors on P1_0–P1_2. Use Value: Integrated three-phase PWM generation reduces external component count; Y-version temperature rating ensures reliability during high-torque operation. |
Use Scenario: Central sensor aggregator in residential thermostats, collecting temperature, humidity, and occupancy data while managing display and relay outputs. IC Role / Device Role / Timing Role: System-on-chip managing A/D sampling (AN8–AN11), UART communication to Wi-Fi module, and real-time clock via Timer RA. Use Value: 9-channel A/D with sample-and-hold enables simultaneous multi-sensor acquisition; low-power stop mode extends battery life in wireless variants. |
| Industrial PLC I/O Module | Home Appliance UI Controller |
|
Use Scenario: DIN-rail mounted I/O expansion module converting 24 V digital inputs to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol processor handling UART2 framing, CRC calculation, and opto-isolated input scanning using P0/P1 ports and INT0–INT3. Use Value: Dual UARTs allow isolated RS-485 communication and local debug interface; −20 to +105°C rating supports uncooled cabinet environments. |
Use Scenario: Front-panel controller in washing machines, interpreting rotary encoder inputs, driving segmented LED displays, and sequencing motor phases. IC Role / Device Role / Timing Role: User interface manager reading KI0–KI3 key interrupts, generating display clocks (CLK0/CLK2), and triggering PWM for buzzer/audio feedback. Use Value: Key interrupt capability simplifies mechanical button debouncing; high-current I/O ports directly drive LED segments without external drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212K2SNFP | N-version (−20 to +85°C); identical flash/RAM, pinout, and peripherals | Standard commercial temperature range only - unsuitable for under-hood or high-ambient industrial use | Select R5F212K2SNFP only if operating environment stays below 85°C and cost sensitivity outweighs thermal margin needs. |
| R5F212L2SYFP | R8C/2L Group variant with 1 KB × 2 data flash blocks; same Y-temp rating and package | Enables field-upgradable parameter storage (e.g., calibration tables, user preferences) without external EEPROM | Choose R5F212L2SYFP when non-volatile data logging or configuration persistence is required alongside main program execution. |
Compared with R5F212K2SNFP, the R5F212K2SYFP#V2 offers extended thermal resilience for harsh environments but no data flash; versus R5F212L2SYFP, it trades data retention capability for lower cost and simpler memory management in fixed-parameter systems.
Availability
R5F212K2SYFP#V2 is available at Aetrix Electronics and suitable for motor control in power tools, smart thermostat sensor hubs, industrial PLC I/O modules, home appliance UI controllers, and HVAC actuator systems requiring stable component supply across extended temperature ranges.
Supply support for R5F212K2SYFP#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 IoT markets.
The R8C/2K Group, including R5F212K2SYFP#V2, was designed for cost-optimized, low-power embedded control in consumer and industrial equipment - emphasizing integration of timers, A/D, and communication interfaces in compact packages.
FAQ
What is the maximum operating frequency of the R5F212K2SYFP#V2 and under what conditions?
The R5F212K2SYFP#V2 achieves a maximum operating frequency of 20 MHz when powered at VCC = 3.0–5.5 V with an external crystal connected to XIN/XOUT. At lower supply voltages (2.7–5.5 V), the max frequency drops to 10 MHz, and at 2.2–5.5 V, it is limited to 5 MHz - with A/D converter operation restricted to ≥2.7 V in the lowest-frequency mode.
Does the R5F212K2SYFP#V2 include on-chip data flash memory?
No, the R5F212K2SYFP#V2 belongs to the R8C/2K Group and contains only 8 KB of program flash memory and 1 KB of RAM. It does not include dedicated data flash blocks - unlike the R8C/2L Group (e.g., R5F212L2SYFP), which provides 1 KB × 2 data flash for non-volatile parameter storage.
What is the purpose of the MODE pin on the R5F212K2SYFP#V2?
The MODE pin on the R5F212K2SYFP#V2 is an input used to configure the MCU's boot mode. It must be externally pulled high to VCC via a resistor during power-on to ensure normal flash program execution. Leaving it floating or pulling low may cause unintended entry into programming or test modes.
How many analog input channels does the R5F212K2SYFP#V2 support, and what is their resolution?
The R5F212K2SYFP#V2 supports nine analog input channels (AN2, AN4–AN11) with 10-bit resolution and integrated sample-and-hold circuitry. This enables accurate voltage measurements from sensors such as thermistors, potentiometers, or current shunts in motor control or environmental monitoring applications.
Is the R5F212K2SYFP#V2 pin-compatible with other members of the R8C/2K Group?
Yes, all R8C/2K Group MCUs in the PLQP0032GB-A (32-pin LQFP) package - including R5F212K2SNFP, R5F212K4SDFP, and R5F212K2SYFP#V2 - share identical pinouts and electrical characteristics. Firmware and PCB layouts are interchangeable across variants differing only in memory size, temperature grade, or voltage rating.
R5F212K2SYFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/2K
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- LINbus, SIO, UART/USART
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 9x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F212K2SYFP#V2 FAQ
1.How can I place an order for R5F212K2SYFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F212K2SYFP#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 R5F212K2SYFP#V2 reliable?
The price and inventory of R5F212K2SYFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F212K2SYFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F212K2SYFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F212K2SYFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F212K2SYFP#V2?
R5F212K2SYFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F212K2SYFP#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 R5F212K2SYFP#V2?
For technical support, including R5F212K2SYFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F212K2SYFP#V2 requirements.
6.How does Aetrix verify that R5F212K2SYFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F212K2SYFP#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 R5F212K2SYFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F212K2SYFP#V2?
All R5F212K2SYFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F212K2SYFP#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 R5F212K2SYFP#V2 part is unused and in its original packaging.
Return procedure for R5F212K2SYFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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