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Renesas R5F212K4SNFP#X6
- Part No.:
- R5F212K4SNFP#X6
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F212K4SNFP#X6.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F212K4SNFP#X6 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#X6 datasheet, R5F212K4SNFP#X6 pinout, R5F212K4SNFP#X6 application, or R5F212K4SNFP#X6 equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options for embedded system design and BOM optimization.
Technical Context
The R5F212K4SNFP#X6 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 min instruction time (20 MHz XIN, 3.0–5.5 V), supports seven interrupt priority levels, and integrates voltage detection (VDD = 2.2–5.5 V), wait/stop low-power modes (0.7 µA stop current), and anti-noise EMI-hardened I/O.
Its peripheral set includes UART0/UART2, hardware LIN module (using timer RA + UART0), 8-bit timers RA/RB, 16-bit timer RC (4 capture/compare registers), and dual 16-bit timer RD units enabling reset-synchronous or complementary PWM for three-phase motor drive - all mapped to confirmed 32-pin LQFP I/O with dedicated TRDIOx pins for phase output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C/Tiny 16-bit core with 89 instructions, 16×16→32-bit multiplier, single-chip mode, 1 Mbyte address space |
| Memory | 16 KB flash ROM, 1.5 KB RAM - sufficient for standalone sensor node firmware with calibration tables and communication stack |
| ADC | 10-bit resolution × 9 channels with sample-and-hold - enables simultaneous sampling of motor current, temperature, and voltage rails |
| Timers | Timer RA/RB (8-bit), RC (16-bit, 4 compare/capture), RD (dual 16-bit, 6-PWM output) - supports BLDC commutation timing and fault-protected PWM generation |
| Serial Interface | UART0 + UART2 + hardware LIN (timer RA + UART0) - allows local device diagnostics via UART and automotive-grade bus communication via LIN |
| Operating Range | -20°C to +85°C (N version), VCC = 2.2–5.5 V - suitable for indoor consumer electronics and non-automotive industrial enclosures |
| Power Modes | Standard, wait (23 µA), stop (0.7 µA) - enables battery-backed sleep states in portable or energy-conscious systems |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC/AVCC (Pin 7) | Power supply input | Primary digital/analog supply rail (2.2–5.5 V); AVCC requires decoupling capacitor to AVSS for ADC stability |
| VSS/AVSS (Pin 5) | Ground reference | Digital/analog common ground; separation recommended for noise-sensitive ADC operation |
| XIN/P4_6 (Pin 6) | External clock input | Accepts crystal (1–20 MHz) or external clock signal; enables precise timing for UART/LIN baud rate generation |
| RESET (Pin 3) | Active-low reset input | Hardware reset trigger; internal power-on reset active; supports external debounced push-button reset |
| P0_0–P0_5, P1_0–P1_7, P2_0–P2_7, P3_3–P3_5, P4_5 | CMOS I/O ports | 25 programmable CMOS I/O pins with software-selectable pull-up resistors; P2_0–P2_7 support high-current LED drive |
| AN2, AN4–AN11 (Pins 28, 29, 30, 31, 32, 22, 23, 24, 25) | Analog inputs | 9-channel 10-bit ADC inputs; AN8–AN11 shared with KI0–KI3 key interrupt pins for wake-on-key functionality |
| TRDIOA0/TRDCLK (Pin 16), TRDIOA1–TRDIOD1 (Pins 12–15, 9–11) | Timer RD I/O | 8 dedicated pins for three-phase PWM output (6 pins) and clock synchronization - directly drives gate drivers in motor control |
| TXD0/RXD0 (Pins 21/20), TXD2/RXD2 (Pins 31/30) | UART data I/O | Dual full-duplex UART interfaces; UART0 used with timer RA for hardware LIN physical layer compliance |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Integrated LIN 2.0/2.1 compliant transceiver logic using UART0 + timer RA - eliminates external LIN transceiver in cost-sensitive nodes |
| Three-Phase PWM Engine | Timer RD supports reset-synchronous and complementary PWM modes on six pins - enables direct control of 3-phase inverter bridges without external logic |
| Low-Power Operation | 0.7 µA stop-mode current at 3.0 V - extends battery life in always-on sensor monitoring applications |
| EMI-Resistant I/O | Anti-noise configuration with slew-rate control and noise filtering - meets industrial EMC requirements without added board-level filtering |
| On-Chip Debug Support | Fully integrated on-chip debug interface with flash rewrite capability - enables field firmware updates and real-time trace without JTAG emulator |
Applications
| Home Appliance Motor Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Variable-speed control of BLDC motors in washing machines and air purifiers. IC Role / Device Role / Timing Role: Primary motor controller executing commutation logic, current sensing, and speed regulation via PWM outputs on TRDIO pins. Use Value: Integrated three-phase PWM and 10-bit ADC reduce component count by eliminating external gate driver logic and analog front-end ICs. |
Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ readings. IC Role / Device Role / Timing Role: System-on-chip managing sensor polling, data preprocessing, UART/LIN reporting, and ultra-low-power sleep scheduling. Use Value: 0.7 µA stop-mode current and on-chip voltage detection enable multi-year battery life with periodic wake-up and transmission. |
| Consumer Audio Power Management | Office Equipment Status Monitor |
|
Use Scenario: Power sequencing and thermal protection in compact audio amplifiers. IC Role / Device Role / Timing Role: Supervisor MCU monitoring VCC, die temperature (via internal diode), and amplifier enable signals using ADC and GPIO. Use Value: Hardware voltage detection (VDD = 2.2–5.5 V) and 7-level interrupt priority ensure deterministic fault response within 50 ns. |
Use Scenario: Real-time status reporting and error logging in multifunction printers and scanners. IC Role / Device Role / Timing Role: Peripheral manager handling paper jam detection, toner level ADC reads, and USB-to-UART bridging via UART2. Use Value: Dual UART + LIN support allows simultaneous connection to host PC (UART2) and service tool (LIN), simplifying field diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212K2SNFP | 8 KB flash, 1 KB RAM, identical peripherals and pinout | Lower memory footprint suits simpler firmware (e.g., basic timer-based control without communication stacks) | Select when code size remains under 8 KB and no additional data buffers or protocol stacks are required. |
| R5F212L4SNFP | Same flash/RAM, adds 1 KB × 2 on-chip data flash (10,000 erase cycles) - no change to program ROM endurance (1,000 cycles) | Enables field-updatable calibration data or secure parameter storage without external EEPROM | Choose when runtime parameter retention across power cycles or firmware updates is required. |
Compared with R5F212K4SNFP#X6, R5F212K2SNFP offers reduced memory at identical cost/performance for minimal firmware, while R5F212L4SNFP trades no performance loss for robust data logging capability - both share pin compatibility and identical temperature range (-20°C to +85°C).
Availability
R5F212K4SNFP#X6 is available at Aetrix Electronics and suitable for home appliance motor control, industrial sensor nodes, consumer audio power management, and office equipment status monitoring requiring stable component supply across extended production lifecycles.
Supply support for R5F212K4SNFP#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, power, and SoC solutions for industrial, automotive, and consumer markets.
The R8C/2K Group, including R5F212K4SNFP#X6, was designed for cost-sensitive, low-power embedded control in consumer electronics and industrial equipment - emphasizing integration, EMI resilience, and ease of certification.
FAQ
What is the maximum operating frequency of the R5F212K4SNFP#X6?
The R5F212K4SNFP#X6 supports a maximum external crystal frequency of 20 MHz at VCC = 3.0–5.5 V, achieving a minimum instruction execution time of 50 ns. At lower supply voltages (2.2–2.7 V), the max frequency reduces to 5 MHz for reliable ADC operation. This frequency governs UART baud rates, PWM resolution, and real-time interrupt latency in deployed firmware.
Does the R5F212K4SNFP#X6 include on-chip debug capability?
Yes, the R5F212K4SNFP#X6 features integrated on-chip debug support with real-time trace, flash programming, and breakpoint control accessible via a standard serial interface - no external JTAG emulator is required. This enables in-system firmware development, field updates, and production-line programming without adding debug headers or external tools.
What is the function of the TRDIO pins on the R5F212K4SNFP#X6?
The TRDIO pins (TRDIOA0–TRDIOD1, Pins 12–16, 9–11) are dedicated I/O for Timer RD, enabling six-channel PWM output for three-phase motor control. They support reset-synchronous PWM (for synchronized switching), complementary PWM (with dead-time insertion), and PWM3 mode - directly driving gate drivers in BLDC or PMSM inverters without external logic.
Can the R5F212K4SNFP#X6 operate from a 2.5 V supply?
Yes, the R5F212K4SNFP#X6 operates across VCC = 2.2–5.5 V. At 2.5 V, the maximum supported XIN frequency is 10 MHz (100 ns min instruction time), and the ADC remains functional. However, the A/D converter requires VCC ≥ 2.7 V per specification - so for full-feature operation including ADC, maintain VCC ≥ 2.7 V.
Is the R5F212K4SNFP#X6 pin-compatible with other R8C/2K devices?
Yes, all R8C/2K Group MCUs in the PLQP0032GB-A package - including R5F212K2SNFP, R5F212K4SDFP, and R5F212K4SNFP#X6 - share identical pinout, electrical characteristics, and peripheral mapping. Only ROM/RAM size and temperature grade differ; firmware compiled for one can run on another after adjusting memory layout.
R5F212K4SNFP#X6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/2K
- Packaging:
- Tape & Reel (TR)
- 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#X6 FAQ
1.How can I place an order for R5F212K4SNFP#X6 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F212K4SNFP#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 R5F212K4SNFP#X6 reliable?
The price and inventory of R5F212K4SNFP#X6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F212K4SNFP#X6 is usually 5 days.
3.What payment methods are accepted for R5F212K4SNFP#X6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F212K4SNFP#X6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F212K4SNFP#X6?
R5F212K4SNFP#X6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F212K4SNFP#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 R5F212K4SNFP#X6?
For technical support, including R5F212K4SNFP#X6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F212K4SNFP#X6 requirements.
6.How does Aetrix verify that R5F212K4SNFP#X6 is sourced from the original manufacturer or authorized distributors?
All R5F212K4SNFP#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 R5F212K4SNFP#X6 meets industry standards.
7.What is the process for return or replacement of R5F212K4SNFP#X6?
All R5F212K4SNFP#X6 units undergo pre-shipment inspection (PSI). If there is an issue with R5F212K4SNFP#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 R5F212K4SNFP#X6 part is unused and in its original packaging.
Return procedure for R5F212K4SNFP#X6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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