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Renesas R5F21206JFP#U1
- Part No.:
- R5F21206JFP#U1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21206JFP#U1.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,796
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Product details
Overview
R5F21206JFP from Renesas Electronics is a 16-bit R8C/20 Group microcontroller with 32 KB flash program memory, 2 KB RAM, and 41 general-purpose I/O pins in a 48-pin LQFP package. It features an 89-instruction R8C CPU core, 10-bit 12-channel ADC, dual UARTs, hardware LIN module (using Timer RA and UART0), and operates at up to 20 MHz (VCC = 3.0–5.5 V) for automotive body control and industrial sensor interface applications.
For engineers reviewing the R5F21206JFP datasheet, R5F21206JFP pinout, R5F21206JFP application, or R5F21206JFP equivalent, this MCU delivers deterministic real-time control with integrated LIN communication, on-chip voltage detection, oscillation stop detection, and 7-level interrupt priority-key for ECU firmware development and embedded motor control systems requiring stable timing and low-power operation.
Technical Context
The R5F21206JFP implements the R8C CPU core with 1 Mbyte address space and executes instructions in as little as 50 ns at 20 MHz. Its peripheral set includes two 8-bit timers (RA, RB), two 16-bit timer RD channels with input capture/output compare, one 8-bit timer RE with compare match, and a watchdog timer with 15-bit counter and prescaler.
It integrates UART0 (with LIN support), UART1, one clock-synchronous serial interface, two I²C bus interfaces, and a 10-bit A/D converter with 12 analog inputs and internal reference voltage input (VREF). Clock generation includes XIN/XOUT crystal oscillator circuit and high-speed/low-speed on-chip oscillators with frequency adjustment capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit architecture with 89 fundamental instructions and 1 Mbyte linear address space |
| Flash Memory | 32 KB program ROM; supports 1,000 erase/write cycles; VCC-only programming (2.7–5.5 V) |
| RAM | 2 KB on-chip SRAM used for data storage, subroutine stacks, and interrupt handling |
| ADC | 10-bit resolution, 12-channel single-ended input; uses internal or external VREF reference |
| Timers | Timer RA/RB (8-bit ×2), Timer RD (16-bit ×2 with input capture/output compare), Timer RE (8-bit compare match) |
| Serial Interfaces | UART0 (LIN-capable), UART1, I²C ×2, clock-synchronous serial I/O with chip select |
| Supply & Temp | VCC = 3.0–5.5 V; operating ambient temperature: −40°C to +85°C (J version) |
Pinout & Package
Package: 48-pin plastic LQFP (PLQP0048KB-A), 7 mm × 7 mm body, 0.5 mm pin pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog Input / GPIO | 12-channel ADC inputs (AN0–AN7); configurable CMOS I/O with software-selectable pull-up |
| P1_0–P1_7 | GPIO / Peripheral Multiplex | Supports KI0–KI3 key interrupts, TRAIO/INT1, CLK0, TXD0/RXD0; all individually direction-controllable |
| P2_0–P2_7 | Timer RD I/O | TRDIOA0–TRDIOD1 and TRDCLK for 16-bit timer input capture/output compare functions |
| P3_0, P3_1, P3_3–P3_5, P3_7 | I²C / SSI / LIN / GPIO | SCL/SDA (I²C), SSI/SCS/SSCK/SSO (serial I/O), TRAO/TRBO (timer outputs), LIN physical layer interface |
| P4_2, P4_3, P4_4, P4_5, P4_6 | Analog Reference / Interrupt / Clock | VREF (ADC reference), INT0, MODE, RESET, XIN (crystal input); P4_6 and P4_7 are input-only |
| P6_0–P6_7 | Timer RE / UART1 / Interrupt | TREO (clock output), TXD1/RXD1, INT2/INT3; supports LIN slave mode via UART0 and Timer RA |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Integrated LIN 2.0/2.1 support using UART0 and Timer RA-eliminates external transceiver for basic node implementation |
| Oscillation Stop Detection | Dedicated circuit monitors XIN clock stability and triggers reset if oscillation fails-critical for automotive fail-safe operation |
| Voltage Detection Circuit | On-chip brown-out detector with programmable threshold ensures reliable reset during supply dips without external components |
| High-Speed On-Chip Oscillator | Adjustable internal RC oscillator (1–20 MHz range) enables fast wake-up from STOP mode and reduces BOM cost |
| 7-Level Interrupt Priority | Hardware-based nested interrupt handling allows deterministic response to time-critical events like LIN frame reception or ADC conversion complete |
Applications
| Automotive Body Control Unit | Industrial Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main controller executing LIN slave protocol, managing GPIO-driven actuators, and sampling analog sensor feedback (e.g., potentiometer position, temperature). Use Value: Integrated LIN hardware and 12-channel ADC reduce component count and PCB area versus discrete UART + transceiver + external ADC solutions. |
Use Scenario: Local data acquisition and preprocessing in factory-floor environmental monitoring systems with analog sensors (temperature, humidity, pressure). IC Role / Device Role / Timing Role: Real-time signal conditioning, periodic ADC sampling, UART-based data streaming to gateway, and watchdog-monitored operation. Use Value: On-chip voltage detection and oscillation stop detection ensure robustness in unattended deployments where power instability or crystal failure must trigger safe recovery. |
| Home Appliance Motor Controller | Medical Diagnostic Equipment Interface |
Use Scenario: Brushless DC motor commutation and speed regulation in HVAC blowers or washing machine drum drives. IC Role / Device Role / Timing Role: PWM generation via timer output compare, current sensing via ADC, and fault monitoring (overcurrent, overtemperature) using GPIO and analog inputs. Use Value: Dual 16-bit Timer RD channels provide precise, independent timing for three-phase commutation signals without CPU overhead. |
Use Scenario: Signal conditioning and digital interface between analog biosensors (ECG, SpO₂) and host processor in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-noise analog front-end with 10-bit ADC, isolated UART communication, and deterministic interrupt latency for time-critical waveform sampling. Use Value: 2 KB RAM and 32 KB flash support firmware with calibration tables and real-time filtering algorithms while meeting IEC 60601-1 leakage current requirements via low-power STOP modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21207JFP | 48 KB program ROM, 2.5 KB RAM; identical peripherals and pinout | Higher firmware complexity (e.g., bootloader + application, multi-sensor fusion) | Select when additional code space is required without changing layout or driver stack. |
| R5F21216JFP | R8C/21 Group variant with 1 KB × 2 data flash blocks; same ROM/RAM size and package | Requires non-volatile parameter storage (e.g., calibration coefficients, device ID) without external EEPROM | Choose for field-upgradable configurations where data retention across power cycles is mandatory. |
Compared with R5F21207JFP and R5F21216JFP, the R5F21206JFP offers optimal balance of cost, footprint, and feature set for fixed-function automotive and industrial controllers where 32 KB flash suffices and data flash is unnecessary-reducing BOM cost and simplifying qualification.
Availability
R5F21206JFP is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, home appliance motor control, and medical diagnostic equipment interface requiring stable component supply and long-term production continuity.
Supply support for R5F21206JFP 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The R5F21206JFP belongs to the R8C/20 Group-a cost-optimized 16-bit MCU family designed for real-time embedded control in resource-constrained applications where LIN communication, analog sensing, and deterministic interrupt response are essential.
FAQ
What is the maximum operating frequency of the R5F21206JFP?
The R5F21206JFP operates at a maximum frequency of 20 MHz when supplied with VCC = 3.0–5.5 V. At this frequency, its minimum instruction execution time is 50 ns. Frequency scaling down to 10 MHz extends the valid supply range to VCC = 2.7–5.5 V, supporting wider input voltage tolerance in battery-powered designs. The R5F21206JFP uses either an external crystal (XIN/XOUT) or its adjustable high-speed on-chip oscillator.
Does the R5F21206JFP include data flash memory?
No, the R5F21206JFP is part of the R8C/20 Group and contains only program flash memory (32 KB) with 1,000 erase/write cycles. It does not include dedicated data flash blocks. For data flash functionality (1 KB × 2 blocks), the R8C/21 Group part R5F21216JFP is the direct alternative-same pinout, package, and peripheral set but with added non-volatile parameter storage capability.
How many analog input channels does the R5F21206JFP support?
The R5F21206JFP integrates a single 10-bit successive-approximation A/D converter with 12 analog input channels (AN0–AN11), accessible via P0_0–P0_7, P1_0–P1_3, and P4_2. It supports both internal reference (AVCC/AVSS) and external reference voltage (VREF pin) for flexible measurement ranges. Conversion is triggered by software, timer, or external event, with results stored in dedicated result registers.
Is the R5F21206JFP pin-compatible with other R8C/20 Group MCUs?
Yes, the R5F21206JFP shares the same 48-pin LQFP (PLQP0048KB-A) package and identical pin assignments with all R8C/20 Group variants including R5F21207JFP, R5F21208JFP, and R5F2120AJFP. This enables drop-in replacement for firmware upgrades or memory scaling without PCB redesign-provided the target part's larger ROM/RAM footprint is accommodated in software.
What LIN protocol versions does the R5F21206JFP support?
The R5F21206JFP implements hardware-assisted LIN communication via its UART0 peripheral combined with Timer RA, supporting LIN 2.0 and LIN 2.1 specifications. It handles break field detection, sync field, identifier field, and checksum calculation in hardware-reducing CPU load and ensuring accurate timing for baud rates up to 20 kbps. No external LIN transceiver is required for basic slave-node operation.
R5F21206JFP#U1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/2x/20
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, Voltage Detect, WDT
- Number of I/O:
- 41
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21206JFP#U1 FAQ
1.How can I place an order for R5F21206JFP#U1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21206JFP#U1 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 R5F21206JFP#U1 reliable?
The price and inventory of R5F21206JFP#U1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21206JFP#U1 is usually 5 days.
3.What payment methods are accepted for R5F21206JFP#U1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21206JFP#U1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21206JFP#U1?
R5F21206JFP#U1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21206JFP#U1 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 R5F21206JFP#U1?
For technical support, including R5F21206JFP#U1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21206JFP#U1 requirements.
6.How does Aetrix verify that R5F21206JFP#U1 is sourced from the original manufacturer or authorized distributors?
All R5F21206JFP#U1 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 R5F21206JFP#U1 meets industry standards.
7.What is the process for return or replacement of R5F21206JFP#U1?
All R5F21206JFP#U1 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21206JFP#U1, 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 R5F21206JFP#U1 part is unused and in its original packaging.
Return procedure for R5F21206JFP#U1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21206JFP#U1 Tags
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