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Renesas R5F212ACSNFA#V2
- Part No.:
- R5F212ACSNFA#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F212ACSNFA#V2.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,417
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Product details
Overview
R5F212ACSNFA#V2 from Renesas Electronics is a 128 KB Flash, 7.5 KB RAM 16-bit R8C/Tiny Series MCU in 64-pin LQFP (PLQP0064GA-A), operating at up to 20 MHz with 10-bit A/D converter (12 channels), dual 8-bit D/A converters, hardware LIN interface, and six timer modules including PWM-capable Timer RD and real-time clock Timer RE. It targets embedded control in consumer audio and office equipment.
For engineers reviewing the R5F212ACSNFA#V2 datasheet, R5F212ACSNFA#V2 pinout, R5F212ACSNFA#V2 application, or R5F212ACSNFA#V2 equivalent, key selection criteria include its -20°C to +85°C industrial temperature grade, on-chip debug support, low-power stop mode (0.65 µA), and compatibility with Renesas' R8C/2A Group toolchain and development environment.
Technical Context
The R5F212ACSNFA#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte, and it supports single-chip operation without external bus expansion.
It integrates three clock sources - XIN oscillator (20 MHz max), high-speed/low-speed on-chip oscillators (with frequency adjustment), and 32 kHz XCIN crystal input - plus oscillation stop detection and selectable frequency dividers (1/2/4/8/16). Power management includes wait and stop modes with sub-µA current draw.
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 |
| Flash Memory | 128 KB program flash; supports 1,000 erase/write cycles; VCC = 2.7–5.5 V programming |
| RAM | 7.5 KB on-chip SRAM for data and stack operations |
| A/D Converter | 10-bit resolution × 12 channels with sample-and-hold; usable across full VCC range |
| D/A Converter | 8-bit × 2 independent channels for analog output generation |
| Timers | Timer RA/RB (8-bit), RC/RD/RE/RF (16-bit); RD supports 6-pin complementary PWM for motor control |
| Serial Interfaces | UART0/1/2 × 3, I²C/SSU shared channel, hardware LIN module (using UART0 + Timer RA) |
Pinout & Package
Package: 64-pin LQFP (PLQP0064GA-A), 0.8 mm pin pitch, 14 mm × 14 mm body, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / D/A output / digital I/O | 12-channel A/D inputs (AN0–AN11); DA0/DA1 outputs; configurable CMOS ports with pull-up |
| P1_0–P1_7 | General-purpose I/O / interrupt / serial interface | KI0–KI3 keys inputs; RXD0/TXD0; INT1; CLK0; TRAIO for LIN transceiver interface |
| P2_0–P2_7 | Timer RD/RC I/O / TRDx/TRCx signals | 6-pin complementary PWM outputs (TRDIOA/B/C/D0/1); TRCCLK/TRCTRG for encoder capture |
| P3_0–P3_7 | I²C/SSU / TRxO / interrupt | SDA/SCL (shared with SSU); TRAO/TRBO; INT1/INT2; SSO for synchronous serial output |
| P4_3–P4_7 | Clock system interface | XCIN/XCOUT (32 kHz RTC crystal); XIN/XOUT (main oscillator); MODE and RESET pins |
| P5_0–P5_4 | Timer RC capture/compare I/O | TRCCLK, TRCIOA/B/C/D for quadrature encoder or pulse-width measurement |
| P6_0–P6_7 | Real-time clock / UART1/2 / interrupt | TREO (RTC output); TXD1/RXD1, TXD2/RXD2; INT0/INT2/INT3 |
| P8_0–P8_6 | LIN transceiver I/O / TRFOx | TRFO00–TRFO12 for LIN bus physical layer signaling; TRFI for LIN frame input |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via UART0 + Timer RA, eliminating external protocol ICs in automotive body electronics |
| Low-Power Stop Mode | 0.65 µA typical current at 3.0 V enables battery-backed RTC and wake-on-interrupt in portable devices |
| Multi-Source Clock System | Three independent clock domains (XIN, on-chip high/low-speed, XCIN) allow dynamic switching and fail-safe timing redundancy |
| High-Current Drive Ports | 8 dedicated I/O pins drive up to 20 mA each, enabling direct LED or small relay control without external drivers |
| On-Chip Debug & Flash Rewrite | Fully supported on-chip debug interface and in-system flash reprogramming simplify field firmware updates and validation |
Applications
| Audio Equipment Control | Office Equipment Motor Control |
|---|---|
Use Scenario: Volume, tone, and source selection logic in standalone stereo receivers and active speakers. IC Role / Device Role / Timing Role: Main system controller executing UI state machine, ADC-based potentiometer reading, and DAC-driven analog output calibration. Use Value: Integrated 12-channel 10-bit ADC and dual 8-bit DAC eliminate external signal conditioning ICs; LIN module supports remote subwoofer sync. |
Use Scenario: Paper feed, scanning lamp motion, and print head positioning in multifunction printers. IC Role / Device Role / Timing Role: Motion controller managing stepper/servo drives via Timer RD's 6-pin complementary PWM and encoder feedback via TRC pins. Use Value: Hardware PWM with dead-time insertion and quadrature capture reduces CPU load and improves position accuracy vs software-timed solutions. |
| Home Appliance UI Panel | Industrial Sensor Node |
Use Scenario: Keypad scanning, display backlight dimming, and temperature monitoring in microwave ovens and washing machines. IC Role / Device Role / Timing Role: Embedded UI processor handling touch/key inputs, driving segmented LCD via port mapping, and managing thermal safety cutoffs. Use Value: 55 CMOS I/O with selectable pull-ups simplify front-panel wiring; voltage detection circuit ensures safe shutdown during brown-out events. |
Use Scenario: Local sensor aggregation and pre-processing in HVAC duct monitors or factory floor environmental stations. IC Role / Device Role / Timing Role: Edge node controller acquiring analog sensor data (temp/humidity/pressure), performing basic filtering, and transmitting via UART to gateway. Use Value: 12-channel ADC with sample-and-hold supports simultaneous multi-sensor sampling; stop-mode current <1 µA extends battery life to >5 years in wireless nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212ACSNFP#V2 | Same core, memory, peripherals; differs only in package (64-pin LQFP PLQP0064KB-A, 0.5 mm pitch) | Requires PCB redesign due to smaller pad pitch and 10 mm × 10 mm footprint | Select when board space is constrained and fine-pitch assembly capability exists. |
| R5F212ACSDFP#V2 | Identical specs except extended temperature range (-40°C to +85°C) and D-grade qualification | Suitable for automotive cabin modules or outdoor industrial enclosures where ambient extremes occur | Choose for deployments outside standard industrial temperature envelope; no firmware or schematic changes needed. |
Compared with R5F212ACSNFA#V2, the FP variant offers higher density but tighter layout tolerances, while the D-grade SDFP variant adds thermal robustness without altering code or peripheral usage - making both drop-in alternatives for mechanical or environmental adaptation.
Availability
R5F212ACSNFA#V2 is available at Aetrix Electronics and suitable for audio equipment control, office equipment motor control, and home appliance UI panels requiring stable component supply and long-term industrial lifecycle support.
Supply support for R5F212ACSNFA#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 consumer markets.
The R8C/2A Group, including R5F212ACSNFA#V2, was designed for cost-sensitive, low-power embedded control in consumer and office equipment - emphasizing integration, EMI resilience, and toolchain maturity over raw performance.
FAQ
What is the maximum operating frequency and supply voltage range for R5F212ACSNFA#V2?
R5F212ACSNFA#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 minimum instruction execution time is 50 ns under the 20 MHz/3.0 V condition. The device maintains full peripheral functionality across this entire voltage range, including A/D conversion linearity and timer accuracy.
Does R5F212ACSNFA#V2 include on-chip debug capability?
Yes, R5F212ACSNFA#V2 includes full on-chip debug support compatible with Renesas E8/E8a emulators and CS+ IDE. This enables real-time breakpointing, register inspection, and flash memory programming without requiring external JTAG adapters - critical for rapid prototyping and field firmware updates.
How many PWM output channels does R5F212ACSNFA#V2 support, and which timers provide them?
R5F212ACSNFA#V2 supports up to 6 independent PWM outputs via Timer RD in reset-synchronous or complementary PWM mode, plus 3 additional outputs from Timer RC. Timer RB provides programmable waveform generation, and Timer RA supports pulse output mode - collectively enabling multi-phase motor control and LED dimming without external PWM generators.
What is the function of the LIN module in R5F212ACSNFA#V2, and how is it implemented?
The LIN module in R5F212ACSNFA#V2 implements hardware LIN 2.0/2.1 protocol handling using UART0 for serial framing and Timer RA for precise baud rate timing and synchronization. It supports automatic header detection, checksum calculation, and error recovery - reducing CPU overhead by >70% compared to bit-banged LIN implementations.
Is R5F212ACSNFA#V2 qualified for automotive applications?
R5F212ACSNFA#V2 is rated for -20°C to +85°C (N grade) and classified as "Standard" quality per Renesas' grading system, intended for office equipment, audio systems, and home appliances. For automotive use, the D-grade variant R5F212ACSDFP#V2 (-40°C to +85°C) is specified and qualified - R5F212ACSNFA#V2 itself is not approved for automotive deployment.
R5F212ACSNFA#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/2x/2A
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 7.5K 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:
R5F212ACSNFA#V2 FAQ
1.How can I place an order for R5F212ACSNFA#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F212ACSNFA#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 R5F212ACSNFA#V2 reliable?
The price and inventory of R5F212ACSNFA#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F212ACSNFA#V2 is usually 5 days.
3.What payment methods are accepted for R5F212ACSNFA#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F212ACSNFA#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F212ACSNFA#V2?
R5F212ACSNFA#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F212ACSNFA#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 R5F212ACSNFA#V2?
For technical support, including R5F212ACSNFA#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F212ACSNFA#V2 requirements.
6.How does Aetrix verify that R5F212ACSNFA#V2 is sourced from the original manufacturer or authorized distributors?
All R5F212ACSNFA#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 R5F212ACSNFA#V2 meets industry standards.
7.What is the process for return or replacement of R5F212ACSNFA#V2?
All R5F212ACSNFA#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F212ACSNFA#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 R5F212ACSNFA#V2 part is unused and in its original packaging.
Return procedure for R5F212ACSNFA#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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