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Renesas R5F212B8SDFP#X6
- Part No.:
- R5F212B8SDFP#X6
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F212B8SDFP#X6.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F212B8SDFP#X6 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 over −40°C to +85°C. It integrates a 16×16-bit multiplier, 12-channel 10-bit A/D converter, dual 8-bit D/A converters, three UARTs, I²C/SSU, hardware LIN, and six advanced timers including complementary PWM for motor control. It targets embedded control in industrial sensors and appliance subsystems.
For engineers reviewing the R5F212B8SDFP#X6 datasheet, R5F212B8SDFP#X6 pinout, R5F212B8SDFP#X6 application, or R5F212B8SDFP#X6 equivalent, key selection considerations include its −40°C to +85°C industrial temperature grade, dual data flash blocks enabling background reprogramming, integrated LIN physical layer support via UART0 and timer RA, and 64-pin LQFP (PLQP0064KB-A) package with 55 CMOS I/O pins and 8 high-current drive outputs.
Technical Context
The R5F212B8SDFP#X6 implements the R8C/Tiny CPU core with 89 fundamental instructions and single-cycle multiply-accumulate capability (16×16→32 + 32→32). Its clock system includes XIN/XOUT (up to 20 MHz), high-speed/low-speed on-chip oscillators, and 32 kHz XCIN/XCOUT for real-time clock operation.
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 timer RA for baud rate generation and sync pulse handling per ISO 9141-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit core with 89 instructions; executes 50 ns min. at 20 MHz - enables real-time loop execution in motor control firmware. |
| Memory | 64 KB flash ROM + 1 KB × 2 data flash + 3 KB RAM - supports field firmware updates without external EEPROM. |
| A/D Converter | 10-bit resolution × 12 channels with sample-and-hold - sufficient for simultaneous analog sensing of voltage, current, and temperature in power supplies. |
| Timers | Timer RD (16-bit × 2) with complementary PWM mode - generates synchronized high-side/low-side gate signals for 3-phase inverter bridges. |
| Serial Interfaces | UART0/1/2 + I²C/SSU + hardware LIN - UART0+timer RA implements ISO 9141-2 LIN slave without bit-banging overhead. |
| Operating Range | −40°C to +85°C ambient, 2.2–5.5 V supply - qualified for industrial-grade environmental resilience without derating. |
| Power Modes | Stop mode draws 0.65 µA at 3.0 V - extends battery life in always-on sensor nodes with periodic wake-up triggers. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-A), 0.5 mm pitch, 10 mm × 10 mm body, exposed pad not specified. RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P2_0/TRDIOA0/TRDCLK | Timer RD channel A0 / clock input | Configurable as PWM output or external clock source for synchronized multi-axis motion control. |
| P2_1/TRDIOB0 | Timer RD channel B0 | Complementary output paired with P2_0 for dead-time insertion in half-bridge drivers. |
| P2_2/TRDIOC0 | Timer RD channel C0 | Third-phase PWM output; used with P2_0/P2_1 to drive 3-phase BLDC motors. |
| RESET | Active-low reset input | Accepts external reset assertion or internal POR/BOR; debounced by on-chip circuitry. |
| XIN / XOUT | Crystal oscillator input/output | Drives external 1–20 MHz crystal; XOUT is buffered output for cascading clock distribution. |
| XCIN / XCOUT | 32 kHz real-time clock oscillator | Connects to tuning-fork crystal for autonomous RTC operation during stop mode. |
| UART0 TXD0 / RXD0 | LIN bus physical layer I/O | Direct connection to LIN transceiver; supports automatic sync-break detection and checksum validation. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip data flash (1 KB × 2) | Enables wear-leveling and background reprogramming of calibration tables without halting application code. |
| Hardware LIN module | Integrates UART0 and timer RA to meet ISO 9141-2 timing requirements - eliminates software UART timing jitter. |
| Complementary PWM (Timer RD) | Generates matched high-side/low-side drive signals with programmable dead time - prevents shoot-through in inverter stages. |
| 12-channel 10-bit A/D with sample-and-hold | Simultaneously samples up to 12 analog inputs (e.g., phase currents, DC bus voltage, thermistors) within one conversion cycle. |
| 7-level interrupt priority | Supports nested interrupt handling for time-critical tasks (e.g., PWM update) while servicing communication events. |
Applications
| Industrial Motor Control | Smart Appliance Subsystem |
|---|---|
Use Scenario: Closed-loop speed/torque control of 3-phase BLDC motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Primary motion controller executing FOC algorithm, generating 6-PWM signals via Timer RD, sampling current/voltage via A/D, and communicating status via LIN. Use Value: Complementary PWM with hardware dead-time insertion ensures safe switching; data flash stores motor-specific parameters across power cycles. |
Use Scenario: User interface and sensor management in refrigerator control boards, including display backlight dimming and door-open detection. IC Role / Device Role / Timing Role: System manager coordinating touch-key scanning, LED driver PWM (via Timer RB), temperature monitoring (A/D), and LIN communication with main MCU. Use Value: Dual 8-bit D/A outputs drive analog gauges or audio feedback circuits; low-power stop mode extends standby battery life. |
| Programmable Power Supply | Industrial Sensor Node |
Use Scenario: Digital control of adjustable DC-DC converters in test equipment, regulating output voltage/current with feedback loops. IC Role / Device Role / Timing Role: Voltage/current regulation engine using A/D inputs for feedback, D/A outputs for reference setting, and UART2 for remote configuration. Use Value: 10-bit A/D resolution achieves ≤0.1% full-scale measurement accuracy; 64 KB flash accommodates complex PID+feedforward control firmware. |
Use Scenario: Battery-powered environmental monitor logging temperature, humidity, and air quality via analog and digital sensors. IC Role / Device Role / Timing Role: Data acquisition hub sampling sensors via A/D, storing logs in data flash, waking periodically via RTC alarm, and transmitting via UART1 to gateway. Use Value: 0.65 µA stop-mode current enables >5-year battery life; LIN interface allows daisy-chain deployment in factory-floor networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212B8SNFP | Same core, memory, and peripherals but rated for −20°C to +85°C (N version); no industrial temperature qualification. | Suitable for commercial indoor appliances but not factory-floor or outdoor enclosures with wide thermal cycling. | Select R5F212B8SDFP#X6 when ambient operating range must include −40°C cold starts or extended high-temperature operation. |
| R5F212B8SDFA | Identical electrical specs and temperature grade, but in 64-pin LQFP with 0.8 mm pitch (PLQP0064GA-A) - larger footprint, different PCB layout. | Used where board space permits larger package or legacy layout compatibility is required. | Choose R5F212B8SDFP#X6 for compact designs requiring 0.5 mm pitch and 10 mm × 10 mm area constraint. |
Compared with R5F212B8SNFP and R5F212B8SDFA, the R5F212B8SDFP#X6 uniquely combines industrial temperature range (−40°C to +85°C) with the smallest 64-pin LQFP footprint (PLQP0064KB-A), making it optimal for space-constrained, thermally demanding embedded controllers where data flash reliability and LIN compliance are mandatory.
Availability
R5F212B8SDFP#X6 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance subsystems, and programmable power supplies requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F212B8SDFP#X6 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 automotive, industrial, and IoT markets.
The R8C/2B Group, including R5F212B8SDFP#X6, was designed for cost-sensitive, high-reliability embedded control in appliances, industrial sensors, and motor drives - emphasizing integrated peripherals, low-power operation, and robust noise immunity.
FAQ
What is the maximum operating frequency and supply voltage range for R5F212B8SDFP#X6?
The R5F212B8SDFP#X6 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. These graded frequency/voltage specifications allow flexible power design - for example, running at 10 MHz from a 3.3 V rail reduces dynamic power while maintaining real-time responsiveness in sensor nodes. The R5F212B8SDFP#X6 maintains full peripheral functionality across all supported ranges.
Does R5F212B8SDFP#X6 support in-system programming and debug interfaces?
Yes, the R5F212B8SDFP#X6 includes on-chip debug capability and supports on-board flash rewrite via dedicated serial interface (typically using RXD0/TXD0 and RESET). It enables firmware updates in the field without removing the device, and debugging via standard Renesas E8/E8a emulators. The R5F212B8SDFP#X6 also features ROM code protection and ID code check to prevent unauthorized access during development or mass production.
How does the data flash in R5F212B8SDFP#X6 differ from program flash, and what is its endurance?
The R5F212B8SDFP#X6 contains two independent 1 KB data flash blocks separate from the 64 KB program flash. Data flash is optimized for frequent rewrites (10,000 erase/write cycles) and supports background programming - allowing application code to run while updating calibration constants or event logs. Program flash endurance is 1,000 cycles. This separation ensures reliable nonvolatile storage for runtime variables without compromising firmware integrity. The R5F212B8SDFP#X6 leverages this architecture for robust parameter retention.
Can R5F212B8SDFP#X6 generate complementary PWM waveforms with programmable dead time?
Yes, Timer RD in the R5F212B8SDFP#X6 supports complementary PWM mode with hardware-configurable dead time insertion between high-side and low-side outputs (e.g., P2_0/P2_1). This prevents shoot-through in half-bridge or 3-phase inverter stages without CPU intervention. The R5F212B8SDFP#X6 also offers reset-synchronous PWM for precise phase alignment across multiple channels - critical for motor sinusoidal commutation.
What LIN protocol versions and conformance levels does R5F212B8SDFP#X6 support?
The R5F212B8SDFP#X6 implements hardware LIN per ISO 9141-2 using UART0 and timer RA for accurate baud rate generation (19.2 kbps nominal), sync-field detection, and checksum calculation. It supports LIN 1.3 and 2.0 frame formats but does not include LIN 2.1/2.2 auto-addressing or sleep/wake functionality in hardware - those require firmware extension. The R5F212B8SDFP#X6 meets physical layer timing tolerances without software bit-banging overhead.
R5F212B8SDFP#X6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/2x/2B
- Packaging:
- Tape & Reel (TR)
- 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:
R5F212B8SDFP#X6 FAQ
1.How can I place an order for R5F212B8SDFP#X6 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F212B8SDFP#X6 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 R5F212B8SDFP#X6 reliable?
The price and inventory of R5F212B8SDFP#X6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F212B8SDFP#X6 is usually 5 days.
3.What payment methods are accepted for R5F212B8SDFP#X6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F212B8SDFP#X6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F212B8SDFP#X6?
R5F212B8SDFP#X6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F212B8SDFP#X6 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 R5F212B8SDFP#X6?
For technical support, including R5F212B8SDFP#X6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F212B8SDFP#X6 requirements.
6.How does Aetrix verify that R5F212B8SDFP#X6 is sourced from the original manufacturer or authorized distributors?
All R5F212B8SDFP#X6 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 R5F212B8SDFP#X6 meets industry standards.
7.What is the process for return or replacement of R5F212B8SDFP#X6?
All R5F212B8SDFP#X6 units undergo pre-shipment inspection (PSI). If there is an issue with R5F212B8SDFP#X6, 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 R5F212B8SDFP#X6 part is unused and in its original packaging.
Return procedure for R5F212B8SDFP#X6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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