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Renesas R5F212B7SNFA#X6
- Part No.:
- R5F212B7SNFA#X6
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F212B7SNFA#X6.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,457
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Product details
Overview
R5F212B7SNFA#X6 from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller in the R8C/2B Group, featuring 48 KB flash program memory, 1 KB × 2 on-chip data flash, 2.5 KB RAM, and operation at up to 20 MHz (VCC = 3.0–5.5 V). It integrates 12-channel 10-bit A/D, dual 8-bit D/A converters, six timer modules (including three-phase PWM-capable Timer RD), LIN hardware interface, and UART/SSU/I²C serial interfaces. It targets embedded control in consumer appliances requiring low-power operation and mixed-signal integration.
For engineers reviewing the R5F212B7SNFA#X6 datasheet, R5F212B7SNFA#X6 pinout, R5F212B7SNFA#X6 application, or R5F212B7SNFA#X6 equivalent, key selection considerations 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), real-time clock capability (Timer RE), and hardware LIN compliance using UART0 and Timer RA.
Technical Context
The R5F212B7SNFA#X6 implements the R8C/Tiny CPU core with 89 fundamental instructions and a dedicated 16×16→32-bit multiplier for efficient signal processing. Its memory architecture separates 48 KB flash program ROM from two independent 1 KB data flash blocks-enabling field firmware updates without erasing application code.
Peripheral integration includes Timer RD with complementary PWM mode for three-phase motor control, hardware LIN transceiver support via UART0 and Timer RA, and flexible clocking with XIN/XOUT (up to 20 MHz), high-speed on-chip oscillator (frequency-adjustable), and 32 kHz XCIN/XCOUT RTC source. Low-power modes (wait: 2.1 µA, stop: 0.65 µA at 3.0 V) are enabled by configurable oscillation stop detection and prescaled clock dividers.
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 deterministic real-time response in appliance control loops. |
| Memory | 48 KB flash program ROM + 1 KB × 2 data flash + 2.5 KB RAM - supports secure firmware updates and parameter storage without external EEPROM. |
| A/D Converter | 10-bit resolution × 12 channels with sample-and-hold - sufficient for analog sensor monitoring (temperature, voltage, current) in home electronics. |
| PWM Capability | Timer RD provides 6-pin complementary PWM with triangular/sawtooth modulation - directly drives 3-phase BLDC motors in fans or compressors. |
| Serial Interfaces | UART0/1/2, SSU (shared with I²C), and hardware LIN - enables local device networking and automotive-grade diagnostics in white goods. |
| Power Management | Wait mode (2.1 µA @ 3.0 V, 32 kHz) and stop mode (0.65 µA) - extends battery life in always-on standby functions. |
| Operating Temperature | -20°C to +85°C (N version) - qualified for indoor consumer and office equipment environments. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064GA-A), 0.8 mm pin pitch, 14 mm × 14 mm body size, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P4_6 / XIN | External crystal input | Accepts 1–20 MHz crystal for precise system clock; paired with P4_7/XOUT. |
| P4_7 / XOUT | External crystal output | Output buffer for crystal oscillator circuit; input-only per datasheet note. |
| P4_3 / XCIN | 32 kHz RTC crystal input | Drives low-power real-time clock (Timer RE) during stop/wait modes. |
| P4_4 / XCOUT | 32 kHz RTC crystal output | Completes 32.768 kHz oscillator loop for accurate timekeeping. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers power-on reset and voltage detection recovery. |
| MODE | Boot mode select | Configures startup behavior (ROM/flash execution or on-chip debug mode) at power-up. |
| VCC / AVCC | Core & analog supply | Single 3.0–5.5 V supply powers digital logic and A/D/DAC circuits; decoupling required. |
| VSS / AVSS | Digital & analog ground | Common reference for all domains; separation recommended for noise-sensitive analog paths. |
| P0_0–P0_7 | Analog input / D/A output | AN0–AN7 and DA0/DA1 share pins - enables sensor acquisition and actuator drive on same port group. |
| P1_4 / TXD0, P1_5 / RXD0 | LIN bus physical layer | Hardware UART0 pins used with Timer RA for LIN 2.0 frame generation and synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip data flash | Two 1 KB blocks with 10,000 erase/write cycles - enables robust field firmware updates and calibration data logging. |
| Hardware LIN module | Integrated LIN 2.0 support via UART0 + Timer RA - eliminates external transceiver for cost-sensitive appliance networks. |
| Three-phase PWM engine | Timer RD delivers synchronized 6-pin complementary PWM with dead-time insertion - simplifies BLDC motor driver design. |
| Low-power RTC | Timer RE operates from 32 kHz XCIN/XCOUT in stop mode (0.65 µA) - maintains calendar time without main CPU wake-up. |
| Multi-voltage A/D | 12-channel 10-bit ADC with internal sample-and-hold - acquires signals across full 2.2–5.5 V VCC range without external scaling. |
| Program security | ROM code protect and ID code check - prevents unauthorized firmware extraction or cloning in production units. |
Applications
| Refrigerator Control Unit | Air Conditioner Indoor Unit |
|---|---|
Use Scenario: Real-time monitoring of evaporator/condenser temperatures, compressor speed, fan RPM, and defrost cycle timing. IC Role / Device Role / Timing Role: Main system controller executing PID algorithms, managing LIN-connected sensors, and generating 3-phase PWM for inverter-driven compressors. Use Value: Integrated data flash stores calibration offsets and usage logs; hardware LIN reduces BOM count; low-power stop mode extends control board battery backup. |
Use Scenario: Closed-loop control of DC fan motors, ambient/humidity sensing, display interface, and remote command parsing via IR or wired link. IC Role / Device Role / Timing Role: Central MCU handling sensor A/D conversion, UART-based remote protocol, and PWM fan speed regulation with thermal feedback. Use Value: Dual 8-bit D/A outputs drive analog displays or bias circuits; 12-channel A/D accommodates multiple thermistors and humidity sensors; N-grade temp range matches indoor environment specs. |
| Washing Machine Main Board | Office Multi-Function Printer |
Use Scenario: Motor phase control for drum rotation, water level/temperature sensing, valve actuation, and user interface management. IC Role / Device Role / Timing Role: Primary motion controller using Timer RD's complementary PWM for brushless direct-drive motor; handles LIN communication with door lock and detergent dispensers. Use Value: On-chip data flash retains drum balance calibration data across power cycles; high-current I/O ports drive solenoids directly; 2.1 µA wait mode minimizes standby consumption. |
Use Scenario: Paper path sensing, toner level monitoring, stepper motor sequencing, and USB host interface coordination. IC Role / Device Role / Timing Role: Embedded subsystem controller managing peripheral sensors and actuators, interfacing with main SoC via UART or SPI. Use Value: 10-bit A/D resolves paper thickness and toner density with precision; hardware UART2 supports printer command language parsing; 64-pin LQFP allows dense PCB layout for compact MFP designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F212B7SNFP | Same core, memory, peripherals; differs only in PLQP0064KB-A package (0.5 mm pitch, 10 mm body) | Requires PCB redesign due to smaller footprint and finer pitch; better suited for space-constrained designs | Select when board area is critical and fine-pitch assembly capability exists. |
| R5F212B8SNFA | 64 KB program ROM (vs. 48 KB), identical data flash, RAM, package, and peripherals | Supports larger firmware images (e.g., enhanced UI, additional communication stacks) without changing hardware | Choose when future firmware expansion or feature-rich implementations are anticipated. |
Compared with R5F212B7SNFA#X6, R5F212B7SNFP offers identical functionality in a smaller 64-pin LQFP but demands tighter layout tolerances, while R5F212B8SNFA provides 16 KB more program memory for complex control algorithms or protocol stacks - both retain the same data flash architecture and LIN/PWM capabilities.
Availability
R5F212B7SNFA#X6 is available at Aetrix Electronics and suitable for refrigerator control units, air conditioner indoor units, washing machine main boards, and office multi-function printers requiring stable component supply and long-term industrial availability.
Supply support for R5F212B7SNFA#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 industrial, automotive, and consumer markets.
The R5F212B7SNFA#X6 belongs to the R8C/2B Group within the R8C/Tiny Series - designed specifically for cost-sensitive, low-power embedded control in white goods and office equipment where integrated analog peripherals and field-upgradable flash are essential.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F212B7SNFA#X6?
The R5F212B7SNFA#X6 operates at up to 20 MHz when supplied with 3.0–5.5 V. At lower frequencies (10 MHz, 5 MHz), it supports reduced supply voltages down to 2.2 V, enabling flexible power design across battery- and line-powered applications. This specification is confirmed in Tables 1.3 and 1.4 of the R8C/2B Group datasheet (Rev. 2.10).
Does the R5F212B7SNFA#X6 include on-chip data flash, and what is its endurance rating?
Yes, the R5F212B7SNFA#X6 includes 1 KB × 2 on-chip data flash blocks rated for 10,000 erase/write cycles - distinct from its 48 KB program flash (1,000 cycles). This allows reliable storage of calibration data, device configuration, or firmware update staging without wearing out main program memory.
Which package type does the R5F212B7SNFA#X6 use, and how does it differ from other variants in the R8C/2B Group?
The R5F212B7SNFA#X6 uses the PLQP0064GA-A 64-pin LQFP package (0.8 mm pin pitch, 14 mm × 14 mm body). It differs from the FP variant (PLQP0064KB-A, 0.5 mm pitch, 10 mm body) and LG variant (PTLG0064JA-A, 0.65 mm pitch, 6 mm body) in mechanical dimensions and assembly requirements - no electrical or functional difference exists between them.
How is LIN bus functionality implemented on the R5F212B7SNFA#X6?
LIN bus communication on the R5F212B7SNFA#X6 is implemented in hardware using UART0 combined with Timer RA for baud rate generation and frame synchronization - eliminating need for external LIN transceivers. This configuration supports LIN 2.0 protocol and is explicitly documented in Section 1.1.2 and Table 1.4 of the R8C/2B Group datasheet.
What are the low-power modes supported by the R5F212B7SNFA#X6, and what are their typical current draws?
The R5F212B7SNFA#X6 supports wait mode (2.1 µA at 3.0 V with 32 kHz RTC active) and stop mode (0.65 µA at 3.0 V), both retaining RAM content and allowing wake-up via interrupts or external events. These values are measured under specified conditions in Table 1.4 and enable extended standby operation in energy-conscious appliances.
R5F212B7SNFA#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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2.5K 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:
R5F212B7SNFA#X6 FAQ
1.How can I place an order for R5F212B7SNFA#X6 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F212B7SNFA#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 R5F212B7SNFA#X6 reliable?
The price and inventory of R5F212B7SNFA#X6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F212B7SNFA#X6 is usually 5 days.
3.What payment methods are accepted for R5F212B7SNFA#X6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F212B7SNFA#X6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F212B7SNFA#X6?
R5F212B7SNFA#X6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F212B7SNFA#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 R5F212B7SNFA#X6?
For technical support, including R5F212B7SNFA#X6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F212B7SNFA#X6 requirements.
6.How does Aetrix verify that R5F212B7SNFA#X6 is sourced from the original manufacturer or authorized distributors?
All R5F212B7SNFA#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 R5F212B7SNFA#X6 meets industry standards.
7.What is the process for return or replacement of R5F212B7SNFA#X6?
All R5F212B7SNFA#X6 units undergo pre-shipment inspection (PSI). If there is an issue with R5F212B7SNFA#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 R5F212B7SNFA#X6 part is unused and in its original packaging.
Return procedure for R5F212B7SNFA#X6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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