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Renesas R5F212K4SNFP#V2
- Part No.:
- R5F212K4SNFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F212K4SNFP#V2.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F212K4SNFP#V2 from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller in 32-pin LQFP (PLQP0032GB-A), featuring 16 KB flash ROM, 1.5 KB RAM, 10-bit × 9-channel ADC, dual UART interfaces, hardware LIN support, and four timer modules (RA–RD) with PWM, capture/compare, and three-phase waveform generation capability - deployed in consumer appliance motor control and industrial sensor interface applications.
For engineers reviewing the R5F212K4SNFP#V2 datasheet, R5F212K4SNFP#V2 pinout, R5F212K4SNFP#V2 application, or R5F212K4SNFP#V2 equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options for embedded system design, BOM optimization, and supply continuity planning.
Technical Context
The R5F212K4SNFP#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and 1 Mbyte address space. It executes at 50 ns minimum instruction time (20 MHz XIN, 3.0–5.5 V), supports single-chip mode only, and includes on-chip high-/low-speed oscillators with frequency adjustment and XIN stop detection.
Its peripheral set integrates UART0/UART2 with clock-synchronous serial I/O, a dedicated hardware LIN module (using timer RA and UART0), and four independent timers: 8-bit RA/RB with pulse width measurement and programmable one-shot; 16-bit RC with 4 capture/compare registers and 3-pin PWM; and 16-bit RD×2 supporting reset-synchronous and complementary PWM for three-phase motor drive (6-pin output).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny series, 89 instructions, 16×16→32-bit multiplier, 1 Mbyte address space |
| Memory | 16 KB flash ROM + 1.5 KB RAM; no data flash (R8C/2K Group distinction) |
| ADC | 10-bit resolution × 9 channels with sample-and-hold; supports AN2, AN4–AN11 inputs |
| Timers | Timer RA/RB (8-bit), RC (16-bit, 4 registers), RD (16-bit × 2, 4 registers each); enables 3-phase PWM, input capture, and event counting |
| Serial Interfaces | UART0 and UART2 with clock-synchronous serial I/O; hardware LIN bus controller (timer RA + UART0) |
| Operating Range | -20°C to +85°C (N version), 2.2–5.5 V supply; 0.7 µA stop-mode current at 3.0 V |
| Package | 32-pin LQFP, PLQP0032GB-A (32P6U-A), 7 mm × 7 mm, 0.8 mm pitch |
Pinout & Package
32-pin LQFP package (PLQP0032GB-A) with exposed pad not electrically connected; 7 mm × 7 mm body, 0.8 mm lead pitch, JEDEC standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC/AVCC (Pin 7) | Power supply input | Main digital supply (2.2–5.5 V); AVCC powers ADC analog circuitry - requires local decoupling to AVSS |
| VSS/AVSS (Pin 5) | Ground reference | Digital ground (VSS) and analog ground (AVSS) share pin - layout must separate analog/digital return paths |
| XIN/P4_6 (Pin 6) | Clock input | Accepts crystal (XIN–XOUT), ceramic resonator, or external clock; enables 20 MHz max operation |
| RESET (Pin 3) | Active-low reset | Asynchronous reset input; internal power-on reset and voltage-detection circuit (VDD3) provide additional reliability |
| P1_4/TXD0 (Pin 21) | UART0 transmit | CMOS-output UART0 data line; supports full-duplex communication with RXD0 on P1_5 |
| P0_2/RXD2/AN5 (Pin 30) | Multiplexed I/O | Configurable as UART2 receive, analog input channel 5, or general-purpose CMOS I/O with pull-up option |
| P2_0/TRDIOA0/TRDCLK (Pin 16) | Timer RD primary I/O | Three-phase PWM output A0 or external clock input for Timer RD - critical for motor commutation timing |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation modes | Wait mode (23 µA @ 3.0 V, low-speed oscillator) and stop mode (0.7 µA @ 3.0 V) enable battery-powered sensor nodes |
| Hardware LIN compliance | Dedicated LIN module using UART0 + timer RA eliminates software bit-banging - ensures ISO 9141-2 timing accuracy |
| Three-phase PWM generation | Timer RD supports reset-synchronous and complementary PWM modes with 6-pin output - directly drives 3-phase inverter gate drivers |
| EMI-resistant design | On-chip anti-noise configuration reduces electromagnetic emissions and improves immunity - meets industrial noise requirements |
| Flash programming security | ROM code protect and ID code check prevent unauthorized firmware readout - essential for IP protection in OEM designs |
Applications
| Home Appliance Motor Control | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Variable-speed control of BLDC motors in washing machines and air purifiers using sensorless commutation. IC Role / Device Role / Timing Role: Main MCU executing FOC algorithm, generating synchronized 6-step PWM via Timer RD, sampling back-EMF through ADC channels AN4–AN7. Use Value: Eliminates need for external gate driver logic and dedicated LIN transceiver - reduces BOM count by 3 components per unit. |
Use Scenario: Multi-sensor data acquisition (temperature, humidity, pressure) in factory floor monitoring nodes with wired LIN bus reporting. IC Role / Device Role / Timing Role: Sensor hub MCU managing ADC conversions, UART2-to-LIN protocol translation, and low-power sleep/wake cycles. Use Value: Hardware LIN module ensures deterministic 19.2 kbps frame timing without CPU overhead - guarantees <100 µs jitter in production environments. |
| Office Equipment Power Management | Consumer Audio Signal Routing |
|
Use Scenario: Standby power sequencing and thermal monitoring in multifunction printers with dual-voltage rails (3.3 V/5 V). IC Role / Device Role / Timing Role: System supervisor MCU reading thermistors via AN8–AN11, controlling DC-DC enable lines using high-current drive ports P2_0–P2_7. Use Value: 8 high-current I/O pins (20 mA sink/source) drive MOSFET gates directly - avoids discrete level-shifters and saves 12 mm² PCB area. |
Use Scenario: Input selection and volume control logic in portable Bluetooth speakers with analog audio path switching. IC Role / Device Role / Timing Role: Peripheral coordinator MCU routing analog signals using P1_0–P1_3 key interrupt inputs and P0_0–P0_5 analog mux control. Use Value: Key input interrupt (KI0–KI3) with debounce and wake-from-stop capability reduces system standby current to <1 µA - extends battery life by 40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212L4SNFP | Same package and peripherals, but adds 1 KB × 2 data flash (10,000 write cycles) - no ROM capacity change | Required where field firmware updates or parameter storage (e.g., calibration tables) are needed | Select R5F212L4SNFP if nonvolatile data logging or bootloader update capability is mandatory |
| R5F212K2SNFP | Identical architecture and package, but reduced 8 KB ROM and 1 KB RAM - same N-temp grade and pinout | Suitable for cost-sensitive, function-limited implementations (e.g., basic timer-based controllers) | Choose R5F212K2SNFP when application code size stays under 7.5 KB and RAM usage remains ≤900 bytes |
Compared with R5F212K4SNFP#V2, R5F212L4SNFP adds data flash for runtime parameter storage without changing footprint or software compatibility, while R5F212K2SNFP reduces memory to lower cost - both retain identical peripheral sets, temperature range, and low-power behavior.
Availability
R5F212K4SNFP#V2 is available at Aetrix Electronics and suitable for home appliance motor control, industrial sensor interface, and office equipment power management requiring stable component supply across multi-year production cycles.
Supply support for R5F212K4SNFP#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 IoT applications.
The R8C/2K Group, including R5F212K4SNFP#V2, was designed for cost-sensitive, low-power embedded control in consumer and industrial equipment - emphasizing integration, EMI robustness, and LIN-ready communication.
FAQ
What is the maximum operating frequency and supply voltage range for R5F212K4SNFP#V2?
R5F212K4SNFP#V2 operates up to 20 MHz with an XIN clock source at VCC = 3.0–5.5 V. At lower frequencies, it supports 10 MHz (2.7–5.5 V) and 5 MHz (2.2–5.5 V, though A/D converter requires ≥2.7 V). The minimum instruction execution time is 50 ns under 20 MHz/3.0 V conditions - confirmed in Renesas document REJ03B0219-0110, Table 1.1.
Does R5F212K4SNFP#V2 include on-chip data flash memory?
No, R5F212K4SNFP#V2 belongs to the R8C/2K Group and contains only program flash ROM (16 KB) and RAM (1.5 KB). Data flash (1 KB × 2 blocks) is exclusive to the R8C/2L Group, such as R5F212L4SNFP. This distinction is explicitly stated in Section 1.1 and Tables 1.1–1.4 of the official Renesas datasheet REJ03B0219-0110.
Which pins on R5F212K4SNFP#V2 support hardware LIN bus functionality?
R5F212K4SNFP#V2 implements hardware LIN using UART0 (TXD0 on P1_4, RXD0 on P1_5) combined with timer RA for baud rate generation and frame timing - per Section 1.2, Table 1.2 of REJ03B0219-0110. No external transceiver is required for basic LIN physical layer signaling, though an external LIN transceiver (e.g., TJA1020) is needed for bus-level compliance.
What are the low-power modes supported by R5F212K4SNFP#V2 and their typical current draw?
R5F212K4SNFP#V2 supports wait mode (23 µA @ 3.0 V, low-speed on-chip oscillator active) and stop mode (0.7 µA @ 3.0 V, all clocks halted except reset circuit). These values are measured per Renesas specification in Table 1.2 of REJ03B0219-0110 and assume proper configuration of unused I/O pins and disabled peripherals.
Is R5F212K4SNFP#V2 pin-compatible with other members of the R8C/2K Group?
Yes, all R8C/2K Group MCUs - including R5F212K2SNFP, R5F212K4SDFP, and R5F212K4SNFP#V2 - share identical 32-pin LQFP (PLQP0032GB-A) packaging and pin assignment. Differences are limited to ROM/RAM size, temperature grade (N/D/Y), and voltage rating - confirmed in Figure 1.1 and Table 1.5 of REJ03B0219-0110.
R5F212K4SNFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/2K
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 9x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F212K4SNFP#V2 FAQ
1.How can I place an order for R5F212K4SNFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F212K4SNFP#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 R5F212K4SNFP#V2 reliable?
The price and inventory of R5F212K4SNFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F212K4SNFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F212K4SNFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F212K4SNFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F212K4SNFP#V2?
R5F212K4SNFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F212K4SNFP#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 R5F212K4SNFP#V2?
For technical support, including R5F212K4SNFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F212K4SNFP#V2 requirements.
6.How does Aetrix verify that R5F212K4SNFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F212K4SNFP#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 R5F212K4SNFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F212K4SNFP#V2?
All R5F212K4SNFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F212K4SNFP#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 R5F212K4SNFP#V2 part is unused and in its original packaging.
Return procedure for R5F212K4SNFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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