Renesas R5F21207JFP#U1
- Part No.:
- R5F21207JFP#U1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21207JFP#U1.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F21207JFP from Renesas Electronics is a 16-bit R8C/20 Group microcontroller with 48 KB flash program memory, 2.5 KB RAM, and 12-channel 10-bit A/D converter, operating at up to 20 MHz (VCC = 3.0–5.5 V) in automotive and industrial control applications.
For engineers reviewing the R5F21207JFP datasheet, R5F21207JFP pinout, R5F21207JFP application, or R5F21207JFP equivalent, this MCU delivers deterministic real-time performance via its R8C CPU core, integrated LIN module (using Timer RA and UART0), hardware UARTs, I²C interface, and dual 16-bit Timer RD channels for precise input capture and output compare timing.
Technical Context
The R5F21207JFP implements the R8C CPU core - an enhanced 16-bit architecture with 89 fundamental instructions and minimum instruction execution time of 50 ns at 20 MHz. It uses single-chip operation with 1 Mbyte unified address space, supporting both program ROM and SFR access within the same linear map.
Its peripheral set includes two independent UARTs (UART0 with LIN support, UART1), clock-synchronous serial I/O with chip select, dual I²C bus interfaces, 16-bit Timer RD with input capture/output compare on four dedicated pins per channel, and a 15-bit watchdog timer with prescaler and reset-start selectability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions; enables compact, deterministic code for real-time embedded control |
| Flash Memory | 48 KB program ROM; sufficient for mid-complexity firmware including LIN protocol stack and sensor processing |
| RAM | 2.5 KB on-chip SRAM; supports nested interrupts, subroutine stacks, and real-time data buffering |
| A/D Converter | 10-bit resolution × 12 channels; allows simultaneous monitoring of analog sensors (e.g., temperature, voltage, position) |
| Operating Voltage | 3.0–5.5 V at 20 MHz; compatible with standard 5 V automotive and industrial power rails |
| Temperature Range | −40°C to +85°C (J version); qualified for under-hood and factory-floor environments |
| Package | 48-pin LQFP (PLQP0048KB-A, 7 mm × 7 mm, 0.5 mm pitch); surface-mount compatible with automated assembly |
Pinout & Package
Package: 48-pin plastic LQFP (PLQP0048KB-A), 7 mm × 7 mm body, 0.5 mm pin pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog Input / GPIO | 12-channel A/D inputs (AN0–AN7) + general-purpose CMOS I/O with programmable pull-up |
| P1_0–P1_7 | GPIO / Key Interrupt / Serial | KI0–KI3 key inputs; RXD0/TXD0 UART0; CLK0 clock I/O; TRAIO timer I/O |
| P2_0–P2_7 | Timer RD I/O | TRDIOA0–TRDIOD1 and TRDCLK for dual 16-bit timer input capture/output compare |
| P3_0, P3_1 | Timer Output | TRAO (Timer RA output), TRBO (Timer RB output) for PWM or event generation |
| P3_3–P3_5, P3_7 | I²C / SSI / SSO | SCL/SDA (I²C), SSI/SCS/SSCK/SSO (clock-synchronous serial with chip select) |
| P4_2 | VREF Input | External reference voltage input for A/D converter; improves measurement accuracy vs. internal VCC reference |
| P4_6 / P4_7 | XIN / XOUT | Crystal/resonator connection points for external clock source; XOUT is output-only |
| RESET | Active-Low Reset | Asynchronous reset input; initiates full system initialization on logic low assertion |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Integrated LIN 2.0/2.1 support via UART0 + Timer RA; eliminates external transceiver for basic node implementation |
| Dual UART Interfaces | UART0 (LIN-capable) and UART1 enable concurrent diagnostics and inter-module communication without software multiplexing |
| 16-bit Timer RD (2 ch) | Input capture with timestamping and output compare with dead-time insertion; suitable for motor phase control and encoder decoding |
| On-Chip Oscillators | High-speed (adjustable) and low-speed on-chip oscillators; reduce BOM cost and board space vs. external crystals |
| Data Retention Without External EEPROM | Not applicable - R5F21207JFP belongs to R8C/20 Group (no data flash); use external storage or emulate EEPROM in program flash |
Applications
| Automotive Body Control | Industrial Sensor Hub |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Primary MCU executing LIN slave node firmware, managing GPIO-driven actuators, and sampling analog cabin sensors. Use Value: Single-chip solution reduces system cost and footprint while meeting −40°C to +85°C ambient requirements and LIN physical layer timing tolerances. |
Use Scenario: Aggregating temperature, humidity, pressure, and current measurements from multiple field sensors in factory automation equipment. IC Role / Device Role / Timing Role: Data acquisition controller with 12-channel A/D, UART-based telemetry, and watchdog-protected firmware execution. Use Value: On-chip 10-bit A/D and 2.5 KB RAM enable local preprocessing and burst transmission, minimizing host MCU load and communication overhead. |
| Home Appliance Motor Control | Smart Meter Interface Module |
Use Scenario: Speed and direction control of BLDC or universal motors in washing machines, HVAC blowers, and vacuum cleaners. IC Role / Device Role / Timing Role: Real-time motor commutation engine using Timer RD input capture (for hall sensor feedback) and output compare (for PWM generation). Use Value: Dual 16-bit timers with independent prescalers allow synchronized high-resolution PWM and precise rotor position tracking without CPU intervention. |
Use Scenario: Isolated communication bridge between metrology ASIC and host microcontroller in electricity/water/gas meters. IC Role / Device Role / Timing Role: Protocol translator handling UART-to-I²C conversion, CRC validation, and secure register access to metrology peripherals. Use Value: Integrated I²C master and dual UARTs enable reliable, low-latency interfacing with metrology ICs while maintaining separation from main application processor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21207KFP | Same core, memory, and peripherals; rated for −40°C to +125°C ambient | Required for under-hood automotive modules or high-temperature industrial enclosures | Select when extended temperature qualification is mandatory; otherwise, R5F21207JFP suffices for cabin or panel-mounted use. |
| R5F21217JFP | R8C/21 Group variant with 2 × 1 KB data flash blocks (10,000 write cycles) vs. no data flash in R5F21207JFP | Enables firmware-over-the-air updates, calibration storage, and event logging without external EEPROM | Choose R5F21217JFP if nonvolatile parameter storage or field-upgradable code is required; R5F21207JFP lacks embedded data flash. |
Compared with R5F21207KFP, the R5F21207JFP trades extended temperature range for lower cost and identical functionality in standard environments; compared with R5F21217JFP, it omits data flash but maintains identical program memory, A/D, and timer resources for fixed-function deployments.
Availability
R5F21207JFP is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and home appliance motor controllers requiring stable component supply across multi-year production cycles.
Supply support for R5F21207JFP 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 automotive, industrial, and IoT markets.
The R8C/20 Group, including R5F21207JFP, was designed for cost-sensitive, real-time embedded control applications demanding high reliability, integrated peripherals, and broad operating temperature support - particularly in automotive sub-systems and industrial edge devices.
FAQ
What is the maximum operating frequency of the R5F21207JFP?
The R5F21207JFP operates at up to 20 MHz when supplied with VCC = 3.0–5.5 V, achieving a minimum instruction execution time of 50 ns. This frequency is supported by both the external crystal/resonator (XIN/XOUT) and the adjustable high-speed on-chip oscillator, enabling flexible clock source selection without external components.
Does the R5F21207JFP include data flash memory?
No, the R5F21207JFP belongs to the R8C/20 Group and contains only program flash memory (48 KB). It does not include dedicated data flash blocks. For applications requiring nonvolatile parameter storage, external EEPROM or emulation in program flash is necessary. The R8C/21 Group (e.g., R5F21217JFP) adds 2 × 1 KB data flash.
Which peripherals support LIN bus communication on the R5F21207JFP?
The R5F21207JFP implements hardware LIN 2.0/2.1 compliance using UART0 combined with Timer RA for baud rate generation and synchronization. This integrated LIN module eliminates the need for external transceivers in slave-node applications and ensures timing accuracy per LIN specification without CPU overhead.
What is the A/D converter configuration of the R5F21207JFP?
The R5F21207JFP integrates a single 10-bit successive-approximation A/D converter with 12 input channels (AN0–AN11), mapped across P0, P1, and P4 pins. It supports internal or external reference voltage (via VREF pin), programmable sample-and-hold timing, and interrupt-on-conversion completion - ideal for multi-sensor monitoring in resource-constrained systems.
Is the R5F21207JFP pin-compatible with other R8C/20 Group MCUs?
Yes, all R8C/20 Group MCUs in the JFP package (e.g., R5F21206JFP, R5F21208JFP) share identical 48-pin LQFP (PLQP0048KB-A) pinout and peripheral mapping. Firmware and PCB layout are interchangeable across memory variants, enabling scalable design with minimal hardware changes during development or product tiering.
R5F21207JFP#U1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/2x/20
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not 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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2.5K 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:
R5F21207JFP#U1 FAQ
1.How can I place an order for R5F21207JFP#U1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21207JFP#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 R5F21207JFP#U1 reliable?
The price and inventory of R5F21207JFP#U1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21207JFP#U1 is usually 5 days.
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Once your R5F21207JFP#U1 order is processed, you will receive an email with the shipment details and tracking number.
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5.How can I obtain technical support or documentation for R5F21207JFP#U1?
For technical support, including R5F21207JFP#U1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21207JFP#U1 requirements.
6.How does Aetrix verify that R5F21207JFP#U1 is sourced from the original manufacturer or authorized distributors?
All R5F21207JFP#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 R5F21207JFP#U1 meets industry standards.
7.What is the process for return or replacement of R5F21207JFP#U1?
All R5F21207JFP#U1 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21207JFP#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 R5F21207JFP#U1 part is unused and in its original packaging.
Return procedure for R5F21207JFP#U1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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