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Renesas R5F212B8SNFA#V2
- Part No.:
- R5F212B8SNFA#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F212B8SNFA#V2.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,676
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Product details
Overview
R5F212B8SNFA#V2 from Renesas Electronics is a 16-bit R8C/Tiny Series MCU with 64 KB flash program memory, 1 KB × 2 on-chip data flash, and 3 KB RAM, operating at up to 20 MHz (VCC = 3.0–5.5 V). It integrates dual UARTs, LIN hardware module, 12-channel 10-bit A/D converter, two 8-bit D/A converters, and six timer units-including complementary PWM-capable Timer RD-for motor control in consumer appliance power stages.
For engineers reviewing the R5F212B8SNFA#V2 datasheet, R5F212B8SNFA#V2 pinout, R5F212B8SNFA#V2 application, or R5F212B8SNFA#V2 equivalent, key selection criteria include its 64-pin LQFP package (PLQP0064GA-A), -20°C to +85°C industrial temperature grade (N version), on-chip data flash endurance (10,000 erase/write cycles), and hardware LIN support tied to UART0 and Timer RA.
Technical Context
The R5F212B8SNFA#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions and a 16×16→32-bit hardware multiplier for efficient signal processing. Its clock system includes XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz real-time clock), and programmable high-speed/low-speed on-chip oscillators with frequency adjustment.
Peripheral integration centers on deterministic timing control: Timer RD provides reset-synchronous and complementary PWM for three-phase motor drives; Timer RC and RF support input capture and output compare for encoder interfacing; and the LIN module uses UART0 with automatic sync-break detection and checksum generation per ISO 9141-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit core with 89 instructions; executes in 50 ns at 20 MHz - enables fast loop execution in sensor-fused control firmware. |
| Memory | 64 KB flash program ROM + 2 KB data flash (1 KB × 2 blocks) - supports field firmware updates and parameter storage without external EEPROM. |
| A/D Converter | 10-bit resolution × 12 channels with sample-and-hold - captures analog sensor inputs (e.g., thermistors, current shunts) simultaneously across multiple system points. |
| PWM Capability | Timer RD delivers 6-pin complementary PWM with triangular/sawtooth modulation - directly drives 3-phase inverter gate drivers with dead-time control. |
| Serial Interfaces | UART0/1/2 + I2C/SSU (shared) + hardware LIN - enables local device communication (UART), bus-level sensor networking (I2C), and automotive-grade diagnostics (LIN). |
| Power Modes | Wait mode (2.1 µA @ 3 V, 32 kHz) and stop mode (0.65 µA @ 3 V) - extends battery life in always-on appliance subsystems like display controllers. |
| Operating Range | VCC = 2.2–5.5 V; ambient temperature –20°C to +85°C (N version) - suitable for mains-powered white goods with wide input voltage tolerances. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064GA-A), 0.8 mm pin pitch, 14 mm × 14 mm body - compatible with standard surface-mount reflow processes and accessible for manual prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / D/A output | AN0–AN7 and DA0/DA1 mapped to Port 0 - enables direct connection of potentiometers, temperature sensors, and analog actuator references. |
| P1_0–P1_7 | General I/O / LIN transceiver interface | KI0–KI3 and RXD0/TXD0 assigned to Port 1 - supports LIN physical layer signaling via UART0 with dedicated interrupt pins (INT1). |
| P2_0–P2_7 | Timer RD I/O / three-phase PWM outputs | TRDIOA0–TRDIOD1 pins provide 6 complementary PWM outputs - connects directly to external 3-phase gate driver ICs (e.g., IR2136). |
| P4_3/P4_4 | Real-time clock crystal interface | XCIN/XCOUT pins accept 32.768 kHz tuning fork crystal - provides accurate timebase for RTC (Timer RE) and low-power wake-up events. |
| P4_6/P4_7 | Main system clock input/output | XIN/XOUT pins drive external 1–20 MHz crystal or ceramic resonator - sets core timing for all peripherals and instruction execution. |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up - ensures deterministic startup after power-on or brownout recovery. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip data flash | 2 KB (1 KB × 2 blocks) with 10,000 erase/write cycles - retains calibration data, user preferences, and fault logs across power cycles without external nonvolatile memory. |
| Hardware LIN module | Integrated into UART0 and Timer RA - eliminates software bit-banging overhead and guarantees ISO 9141-2 timing compliance for diagnostic communication. |
| Complementary PWM | Timer RD generates synchronized 6-pin outputs with programmable dead time - prevents shoot-through in 3-phase motor inverters without external logic. |
| 12-channel A/D with sample-and-hold | Simultaneous sampling across 12 inputs - captures correlated analog signals (e.g., phase currents + DC bus voltage) for vector control algorithms. |
| Low-power stop mode | 0.65 µA supply current at 3.0 V - enables energy-efficient standby in smart appliance UI modules with periodic wake-up via RTC alarm. |
Applications
| Refrigerator Compressor Control | Washing Machine Drum Motor Drive |
|---|---|
|
Use Scenario: Closed-loop inverter control of brushless DC compressor motor using hall-effect rotor position feedback. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating 3-phase complementary PWM via Timer RD, and monitoring DC bus voltage/current via 12-channel A/D. Use Value: On-chip data flash stores motor calibration tables; hardware LIN enables service technician access to runtime diagnostics without additional interface ICs. |
Use Scenario: Variable-speed drive for direct-drive drum motor with vibration suppression and water-level sensing. IC Role / Device Role / Timing Role: Real-time motion controller managing PWM duty cycle, reading quadrature encoder via Timer RF input capture, and acquiring pressure/temperature via A/D channels. Use Value: Dual UARTs support simultaneous communication with main UI board (UART1) and external water valve controller (UART2); 8-bit D/A outputs drive analog front-end biasing circuits. |
| Smart Air Conditioner Indoor Unit | Dishwasher Heating Element Monitor |
|
Use Scenario: Fan speed regulation, temperature zoning, and remote command parsing via IR receiver and wireless module interface. IC Role / Device Role / Timing Role: System management MCU handling sensor fusion (NTC thermistors, humidity IC), driving fan PWM via Timer RB, and managing LIN-based outdoor unit handshake. Use Value: High-current drive ports (8 pins) directly switch relay coils for damper control; I2C interface reads environmental sensor data without GPIO bit-banging. |
Use Scenario: Precision thermal monitoring and overtemperature cutoff for resistive heating elements during wash/dry cycles. IC Role / Device Role / Timing Role: Safety-critical monitor MCU sampling thermistor network via A/D, comparing against thresholds in real time, and asserting hardware reset if limits are exceeded. Use Value: Voltage detection circuit triggers power-on reset and brownout protection; stop mode reduces leakage current during idle periods between thermal checks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212B8SNFP#V2 | Same core, memory, and peripherals; differs only in PLQP0064KB-A package (0.5 mm pitch, 10 mm × 10 mm) | Requires PCB layout revision due to smaller footprint and tighter pitch - suited for space-constrained designs where thermal mass is less critical | Select when board area is constrained and reflow process supports fine-pitch LQFP; verify trace impedance for high-speed clock routing. |
| R5F212A8SNFA#V2 | Identical package and pinout but lacks on-chip data flash (no 1 KB × 2 blocks); otherwise matches R5F212B8SNFA#V2 in ROM/RAM/peripherals | Cannot store field-updatable parameters or logs internally - requires external EEPROM or FRAM for configuration retention | Choose when cost sensitivity outweighs need for embedded nonvolatile parameter storage; confirm external memory interface availability. |
Compared with R5F212B8SNFA#V2, R5F212B8SNFP#V2 offers identical functionality in a smaller 64-pin LQFP, while R5F212A8SNFA#V2 removes data flash to reduce cost - both require design validation for thermal performance and firmware compatibility, respectively.
Availability
R5F212B8SNFA#V2 is available at Aetrix Electronics and suitable for refrigerator compressor control, washing machine motor drives, smart HVAC indoor units, and dishwasher thermal safety monitoring requiring stable component supply and long-term industrial lifecycle support.
Supply support for R5F212B8SNFA#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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial and consumer systems.
The R8C/2B Group targets cost-sensitive, high-integration embedded applications in home appliances and office equipment, emphasizing low-power operation, mixed-signal capability, and hardware-assisted communication protocols like LIN.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F212B8SNFA#V2?
The R5F212B8SNFA#V2 operates at up to 20 MHz when supplied with VCC = 3.0–5.5 V. At lower voltages, it supports 10 MHz (VCC = 2.7–5.5 V) and 5 MHz (VCC = 2.2–5.5 V). These graded frequency/voltage specifications allow flexible power design in battery-backed or wide-input AC/DC systems. The R5F212B8SNFA#V2 maintains full peripheral functionality across all supported ranges.
Does the R5F212B8SNFA#V2 include hardware support for LIN communication?
Yes, the R5F212B8SNFA#V2 integrates a dedicated hardware LIN module that uses UART0 and Timer RA to implement ISO 9141-2 physical and data link layers. This includes automatic sync-break detection, checksum generation, and configurable baud rates - eliminating software UART overhead and ensuring timing compliance. The R5F212B8SNFA#V2 does not require external transceivers for basic LIN node operation.
How many A/D converter channels does the R5F212B8SNFA#V2 support, and what is their resolution?
The R5F212B8SNFA#V2 features a 10-bit successive-approximation A/D converter with 12 input channels (AN0–AN11), including sample-and-hold functionality. All channels are multiplexed onto Port 0 and Port 1 pins, enabling simultaneous sampling of multiple analog sources such as temperature sensors, current shunts, and potentiometers. The R5F212B8SNFA#V2 supports configurable conversion clocks and trigger sources including timers and external events.
What package type and pin count does the R5F212B8SNFA#V2 use?
The R5F212B8SNFA#V2 uses a 64-pin LQFP package designated PLQP0064GA-A, with 0.8 mm pin pitch and 14 mm × 14 mm body size. This package is RoHS-compliant and optimized for automated SMT assembly. Pin assignments match the R8C/2B Group specification, including dedicated functions for Timer RD PWM outputs, LIN interface, and real-time clock crystal connections. The R5F212B8SNFA#V2 is not offered in QFN or BGA variants.
What is the data flash endurance and organization for the R5F212B8SNFA#V2?
The R5F212B8SNFA#V2 includes 2 KB of on-chip data flash organized as two independent 1 KB blocks, rated for 10,000 erase/write cycles. This memory is electrically separate from program flash and supports byte-level writes and sector erases. It is used for storing calibration data, user settings, and runtime logs - and the R5F212B8SNFA#V2 provides dedicated firmware routines for safe erase/write operations via the on-chip debug interface.
R5F212B8SNFA#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/2x/2B
- 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:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 55
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 12x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F212B8SNFA#V2 FAQ
1.How can I place an order for R5F212B8SNFA#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F212B8SNFA#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 R5F212B8SNFA#V2 reliable?
The price and inventory of R5F212B8SNFA#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F212B8SNFA#V2 is usually 5 days.
3.What payment methods are accepted for R5F212B8SNFA#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F212B8SNFA#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F212B8SNFA#V2?
R5F212B8SNFA#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F212B8SNFA#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 R5F212B8SNFA#V2?
For technical support, including R5F212B8SNFA#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F212B8SNFA#V2 requirements.
6.How does Aetrix verify that R5F212B8SNFA#V2 is sourced from the original manufacturer or authorized distributors?
All R5F212B8SNFA#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 R5F212B8SNFA#V2 meets industry standards.
7.What is the process for return or replacement of R5F212B8SNFA#V2?
All R5F212B8SNFA#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F212B8SNFA#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 R5F212B8SNFA#V2 part is unused and in its original packaging.
Return procedure for R5F212B8SNFA#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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