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Renesas R5F212B8SDFA#V2
- Part No.:
- R5F212B8SDFA#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F212B8SDFA#V2.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,552
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Product details
Overview
R5F212B8SDFA#V2 from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller in the R8C/2B Group, featuring 64 KB flash program memory, 1 KB × 2 on-chip data flash, 3 KB RAM, and operation at up to 20 MHz (VCC = 3.0–5.5 V). It integrates 12-channel 10-bit ADC, dual 8-bit DACs, three UARTs, I²C/SSU, hardware LIN, six timer modules (including 16-bit RD with complementary PWM), and operates across –40°C to +85°C for industrial-grade embedded control.
For engineers reviewing the R5F212B8SDFA#V2 datasheet, R5F212B8SDFA#V2 pinout, R5F212B8SDFA#V2 application, or R5F212B8SDFA#V2 equivalent, this page delivers verified specifications, package mapping to PLQP0064GA-A (64-pin LQFP, 0.8 mm pitch), functional pin roles, real-world use cases in appliance motor control and sensor interface systems, and two validated alternative MCUs with documented differences.
Technical Context
The R5F212B8SDFA#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory architecture separates 64 KB flash program ROM from 2 KB dedicated data flash (1 KB × 2 blocks), enabling reliable parameter storage without erasing application code.
Peripheral integration includes Timer RD supporting reset-synchronous and complementary PWM for three-phase motor drive, hardware LIN transceiver co-located with UART0 and Timer RA, and dual DAC outputs usable for analog waveform generation or sensor calibration offset correction - all operating under low-power wait/stop modes down to 0.65 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit core with 89 instructions, 50 ns min. instruction time at 20 MHz - enables deterministic real-time response in closed-loop control. |
| Memory | 64 KB flash program ROM + 2 KB on-chip data flash (1 KB × 2) - supports field firmware updates and nonvolatile parameter storage independent of main code. |
| ADC/DAC | 10-bit resolution × 12 channels with sample-and-hold; dual 8-bit DACs - sufficient for precision sensor signal conditioning and analog feedback generation. |
| Timers | Timer RD: 16-bit × 2 with 4 capture/compare registers, complementary PWM, and three-phase waveform support - directly drives gate drivers in BLDC motor applications. |
| Serial Interfaces | UART0/1/2 × 3, I²C/SSU (shared), hardware LIN (UART0 + Timer RA) - enables multi-node communication in automotive body electronics and industrial networks. |
| Supply & Temp | VCC = 2.2–5.5 V; operating ambient: –40°C to +85°C (D version) - certified for extended-temperature industrial environments without derating. |
| Power Modes | Wait mode: 2.1 µA @ 3.0 V / 32 kHz; stop mode: 0.65 µA - extends battery life in always-on sensor nodes and portable equipment. |
Pinout & Package
Package: PLQP0064GA-A - 64-pin LQFP, 0.8 mm pin pitch, 14 mm × 14 mm body, exposed pad optional. Compatible with standard reflow profiles and manual inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / DAC output / digital I/O | AN0–AN7 and DA0/DA1 mapped here - enables simultaneous analog sensing and actuator biasing on same port group. |
| P1_0–P1_7 | General-purpose I/O with key input / UART / clock | KI0–KI3 and RXD0/TXD0 share pins - supports wake-up from key press while maintaining serial debug channel. |
| P2_0–P2_7 | TRD (three-phase driver) interface | TRDIOA0–TRDIOD1 provide full 8-pin interface for external three-phase gate driver ICs - matches standard motor driver layout. |
| P4_3/P4_4 | XCIN/XCOUT | 32 kHz crystal oscillator inputs - provides accurate real-time clock base independent of main system clock. |
| P4_6/P4_7 | XIN/XOUT | Main high-speed crystal oscillator (up to 20 MHz) - drives CPU and peripheral clocks with low jitter for timing-critical PWM. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - ensures reliable power-on initialization and brownout recovery. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip data flash (1 KB × 2) | Enables 10,000 erase/write cycles for calibration data, device IDs, or runtime configuration - eliminates need for external EEPROM. |
| Hardware LIN module | Integrated LIN 2.1 physical layer via UART0 + Timer RA - reduces BOM count and PCB area in automotive body control units. |
| Complementary PWM (Timer RD) | Generates matched high-side/low-side drive signals with programmable dead-time - prevents shoot-through in half-bridge and inverter designs. |
| 12-channel 10-bit ADC with sample-and-hold | Simultaneous sampling across multiple sensors (e.g., motor phase currents + temperature) - improves synchronization in motor control algorithms. |
| Low-power stop mode (0.65 µA) | Retains RAM content and wake-up capability via INT0/INT2/INT3 - ideal for battery-powered remote controls and smart sensors. |
Applications
| Appliance Motor Control | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Variable-speed control of BLDC compressors in refrigerators and HVAC systems. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating complementary PWM via Timer RD, and reading current/voltage/temperature sensors via ADC. Use Value: On-chip data flash stores motor-specific tuning parameters; hardware LIN enables communication with display panel and power stage modules. |
Use Scenario: Multi-sensor data acquisition node in factory automation, measuring pressure, humidity, and vibration. IC Role / Device Role / Timing Role: Signal conditioner and protocol translator - digitizes analog sensor outputs, applies calibration via DAC offsets, and forwards data over UART to PLC. Use Value: Dual 8-bit DACs compensate sensor nonlinearity; 12-channel ADC supports concurrent sampling without external mux; D-temp grade ensures reliability near machinery heat sources. |
| Home Audio System Controller | Smart Power Outlet |
|
Use Scenario: Front-panel controller in AV receivers managing button inputs, LED indicators, IR decoding, and audio codec configuration. IC Role / Device Role / Timing Role: Peripheral coordinator - handles key scan (KI0–KI3), UART-based codec control, and real-time clock (Timer RE) for display timing. Use Value: 55 CMOS I/Os with selectable pull-ups simplify direct connection to buttons/LEDs; low-power wait mode extends standby battery life. |
Use Scenario: Energy-monitoring smart outlet with load switching, current measurement, and Wi-Fi gateway interface. IC Role / Device Role / Timing Role: Local intelligence unit - measures RMS current via ADC, triggers relay via high-current I/O ports, logs usage in data flash, and communicates via UART to ESP32 host. Use Value: High-current drive ports (8 pins) directly switch MOSFET gates; data flash retains energy history across power cycles; LIN-capable UART allows future expansion to home bus protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212B8SNFA | No data flash (R8C/2A Group); identical pinout, peripherals, and ROM/RAM size. | Lacks nonvolatile parameter storage - requires external EEPROM for calibration or configuration retention. | Select when field-updatable settings are unnecessary and cost reduction is prioritized over data persistence. |
| R5F212BASNFA | 96 KB program ROM, 7 KB RAM, same 2 KB data flash - larger memory footprint. | Supports more complex firmware (e.g., integrated communication stacks, OTA update logic) without external memory. | Choose when application growth headroom or additional algorithm buffers are required beyond 64 KB code space. |
Compared with R5F212B8SDFA#V2, R5F212B8SNFA removes data flash to reduce cost but sacrifices field-programmable parameter storage, while R5F212BASNFA increases program memory by 50% and RAM by 133%, enabling richer feature sets without changing PCB layout or peripheral integration.
Availability
R5F212B8SDFA#V2 is available at Aetrix Electronics and suitable for industrial motor control, sensor interface systems, and smart appliance applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F212B8SDFA#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 industrial, automotive, and IoT markets.
The R8C/2B Group, including R5F212B8SDFA#V2, was designed for cost-sensitive, high-reliability embedded control in appliances, office equipment, and industrial sensors - balancing performance, integration, and extended-temperature operation.
FAQ
What is the maximum operating frequency and voltage range for R5F212B8SDFA#V2?
R5F212B8SDFA#V2 operates at up to 20 MHz when supplied at 3.0–5.5 V, 10 MHz at 2.7–5.5 V, and 5 MHz at 2.2–5.5 V. Its D-version rating of –40°C to +85°C ensures stable timing across industrial environments without frequency derating. The on-chip high-speed oscillator supports software-adjustable frequency trimming for accuracy-critical applications.
Does R5F212B8SDFA#V2 include on-chip debug capability?
Yes, R5F212B8SDFA#V2 includes full on-chip debug functionality compatible with Renesas E1/E20 emulators. This enables real-time breakpoint setting, register/memory inspection, and flash programming during development - eliminating the need for external debug probes and reducing bring-up time for new R8C/2B-based designs.
How is the data flash organized and what is its endurance in R5F212B8SDFA#V2?
R5F212B8SDFA#V2 contains 2 KB of on-chip data flash structured as two independent 1 KB blocks. Each block supports 10,000 erase/write cycles per block, with individual block erasure possible. This architecture allows one block to store active parameters while the other holds backup or versioned data - enhancing robustness in field-updated systems.
Can R5F212B8SDFA#V2 generate complementary PWM waveforms for motor control?
Yes, Timer RD in R5F212B8SDFA#V2 supports complementary PWM mode with programmable dead-time insertion, capable of driving three-phase inverter bridges using six output pins. This feature is hardware-accelerated and does not require CPU intervention, ensuring precise timing alignment critical for BLDC and PMSM motor commutation.
What package type and pin count does R5F212B8SDFA#V2 use?
R5F212B8SDFA#V2 uses the PLQP0064GA-A package: a 64-pin LQFP with 0.8 mm pin pitch and 14 mm × 14 mm body. This package is RoHS-compliant, supports standard reflow soldering, and shares footprint compatibility with other R8C/2A and R8C/2B family members - simplifying design reuse and migration paths.
R5F212B8SDFA#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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F212B8SDFA#V2 FAQ
1.How can I place an order for R5F212B8SDFA#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F212B8SDFA#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 R5F212B8SDFA#V2 reliable?
The price and inventory of R5F212B8SDFA#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F212B8SDFA#V2 is usually 5 days.
3.What payment methods are accepted for R5F212B8SDFA#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F212B8SDFA#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F212B8SDFA#V2?
R5F212B8SDFA#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F212B8SDFA#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 R5F212B8SDFA#V2?
For technical support, including R5F212B8SDFA#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F212B8SDFA#V2 requirements.
6.How does Aetrix verify that R5F212B8SDFA#V2 is sourced from the original manufacturer or authorized distributors?
All R5F212B8SDFA#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 R5F212B8SDFA#V2 meets industry standards.
7.What is the process for return or replacement of R5F212B8SDFA#V2?
All R5F212B8SDFA#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F212B8SDFA#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 R5F212B8SDFA#V2 part is unused and in its original packaging.
Return procedure for R5F212B8SDFA#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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