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Renesas R5F21217JFP
- Part No.:
- R5F21217JFP
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21217JFP.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,535
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Product details
Overview
R5F21217JFP from Renesas Electronics is a 16-bit R8C/21 Group microcontroller featuring an R8C CPU core, 48 KB program flash ROM, 2.5 KB RAM, and dual 1 KB data flash blocks for nonvolatile parameter storage. It operates at up to 20 MHz (VCC = 3.0–5.5 V), integrates a 10-bit 12-channel ADC, hardware LIN module (using Timer RA and UART0), and supports automotive-grade ambient temperature range of −40°C to +85°C in a 48-pin LQFP package.
For engineers reviewing the R5F21217JFP datasheet, R5F21217JFP pinout, R5F21217JFP application, or R5F21217JFP equivalent, this MCU is selected for embedded control where on-chip data flash persistence, LIN bus compliance, and mixed-signal integration reduce external component count in cost-sensitive automotive body electronics and industrial sensor nodes.
Technical Context
The R5F21217JFP implements the R8C CPU core with 89 fundamental instructions and executes at 50 ns minimum instruction time (20 MHz, 3.0–5.5 V). Its memory architecture includes separate program ROM (48 KB) and dual-block data flash (1 KB × 2), enabling firmware updates and field-parameter retention without external EEPROM.
Peripheral integration centers on deterministic real-time control: Timer RD provides two 16-bit channels with input capture/output compare; UART0 and UART1 support asynchronous and clock-synchronous serial I/O; the hardware LIN module offloads protocol handling from CPU cycles; and the 10-bit ADC delivers 12 analog inputs with internal reference support via VREF pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions; enables compact code footprint and deterministic interrupt latency. |
| Program Memory | 48 KB flash ROM; sufficient for mid-complexity automotive body control firmware with bootloader space. |
| Data Flash | 2 KB total (1 KB × 2 blocks); supports 10,000 erase/write cycles for calibration data or configuration storage. |
| ADC | 10-bit resolution, 12 input channels; allows simultaneous monitoring of multiple sensors (e.g., temperature, voltage, position). |
| LIN Interface | Hardware LIN 2.0/2.1 compliant module using UART0 + Timer RA; eliminates software bit-banging overhead. |
| Operating Voltage | 3.0–5.5 V; compatible with standard 5 V automotive supply rails and tolerant of battery transients. |
| Temperature Range | −40°C to +85°C (J version); qualified for under-hood and cabin-mounted automotive applications. |
| 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 |
|---|---|---|
| VCC / AVCC | Power supply input / Analog power | Primary digital supply (3.0–5.5 V); AVCC must be decoupled separately to ensure ADC accuracy. |
| VSS / AVSS | Ground / Analog ground | Digital and analog return paths; separation reduces noise coupling into ADC measurements. |
| RESET | Active-low reset input | Asynchronous reset assertion halts CPU and initializes peripherals; requires external pull-up. |
| XIN / XOUT | Crystal/resonator interface | Supports external 1–20 MHz crystal or ceramic resonator; XOUT is output-only in oscillator mode. |
| AN0–AN11 | Analog input channels | 12 dedicated pins for 10-bit ADC; AN7–AN0 mapped to P0_0–P0_7; AN8–AN11 to P1_0–P1_3. |
| UART0 (RXD0/TXD0) | Asynchronous serial interface | Full-duplex UART used for LIN physical layer communication and debug console output. |
| TRAIO / TRAO | Timer RA I/O / output | Timer RA output (TRAO) drives LIN bus TX line; TRAIO supports input capture for timing diagnostics. |
| P3_3 / P3_4 / P3_5 | I2C interface (SSI/SCS/SSCK) | Configurable clock-synchronous serial I/O supporting I2C-compatible protocols for sensor interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Data Flash | Dual 1 KB blocks with 10,000-cycle endurance enable field-updatable calibration tables without external memory. |
| Hardware LIN Module | Full LIN 2.0/2.1 compliance using UART0 + Timer RA; handles sync-break-field-checksum generation autonomously. |
| 10-bit 12-Channel ADC | Single-scan conversion time ≤ 25 μs; supports internal VREF reference and programmable sampling windows. |
| Low-Power Operation | Typ. 5.3 mA at 10 MHz (5 V); supports STOP and HALT modes for battery-powered sensor node duty cycling. |
| Robust Clock System | Dual oscillators: high-speed on-chip (adjustable 1–20 MHz) + low-speed on-chip (125 kHz); XIN/XOUT backup. |
| Automotive-Qualified I/O | All I/O pins rated for ±2 kV HBM ESD; wide VCC range ensures operation during cold-crank (6.0 V) and load-dump (40 V) events. |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
|
Use Scenario: Centralized management of lighting, window lifts, locks, and mirrors in passenger vehicles. IC Role / Device Role / Timing Role: Main system controller executing LIN slave firmware, polling switches, driving relays/LEDs, and communicating with gateway over LIN. Use Value: Dual data flash blocks store door position calibrations and user preferences; 12-channel ADC monitors potentiometer feedback and battery voltage. |
Use Scenario: Local control unit inside vehicle door housing motor drivers, switch interfaces, and anti-pinch sensors. IC Role / Device Role / Timing Role: LIN slave node with real-time motor control via PWM outputs and safety-critical analog sensing. Use Value: Hardware LIN module ensures protocol compliance without CPU overhead; 10-bit ADC resolves position sensor signals with <1% error across −40°C to +85°C. |
| Climate Control Actuator | Seat Position Sensor Node |
|
Use Scenario: Driving HVAC blend-air and mode doors using stepper or DC motors in automotive HVAC systems. IC Role / Device Role / Timing Role: Dedicated actuator controller receiving LIN commands, managing motor current, and reporting position via analog feedback. Use Value: On-chip data flash retains learned end-stop positions after power loss; Timer RD channels generate precise PWM for motor speed regulation. |
Use Scenario: Monitoring seat track, backrest, and lumbar position using potentiometers and reporting via LIN to body domain controller. IC Role / Device Role / Timing Role: Analog sensor interface and LIN transmitter with nonvolatile storage for seat memory profiles. Use Value: 12 ADC channels accommodate all seat sensors simultaneously; dual data flash blocks store up to 4 user presets with checksum protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21217KFP | Same core, memory, and peripherals; rated for −40°C to +125°C ambient operation. | Required for engine bay or transmission-mounted modules exceeding 85°C junction temperature. | Select when extended temperature qualification is mandatory; otherwise R5F21217JFP suffices for cabin/body applications. |
| R5F21207JFP | R8C/20 Group variant: identical package and peripherals but lacks data flash (no 1 KB × 2 blocks). | Suitable only where nonvolatile parameter storage is handled externally or unnecessary. | Choose only if data flash is unused; R5F21217JFP provides superior field-serviceability with no PCB change. |
Compared with R5F21217KFP, the R5F21217JFP trades extended temperature rating for lower cost and same functionality in cabin environments; compared with R5F21207JFP, it adds critical data flash capability without altering pinout or firmware compatibility.
Availability
R5F21217JFP is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and LIN-based actuator control requiring stable component supply across multi-year production cycles.
Supply support for R5F21217JFP 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 merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.
The R8C/21 Group, including R5F21217JFP, was designed for cost-sensitive automotive body electronics and industrial control applications requiring integrated LIN, ADC, and nonvolatile data storage in compact LQFP packages.
FAQ
What is the maximum operating frequency of the R5F21217JFP?
The R5F21217JFP supports a maximum operating frequency of 20 MHz when powered at VCC = 3.0–5.5 V. At this frequency, the minimum instruction execution time is 50 ns. Frequency scaling down to 10 MHz extends the allowable supply voltage range to 2.7–5.5 V, improving robustness in brown-out conditions. The on-chip high-speed oscillator can be adjusted across 1–20 MHz for fine-tuned timing control without external components.
Does the R5F21217JFP include hardware LIN support?
Yes, the R5F21217JFP integrates a dedicated hardware LIN module compliant with LIN 2.0 and 2.1 specifications. It uses UART0 for serial framing and Timer RA for accurate break field and synchronization field timing, offloading protocol handling from the CPU. This enables deterministic response times and reduced firmware complexity compared to software-implemented LIN stacks.
How much data flash memory does the R5F21217JFP provide?
The R5F21217JFP includes 2 KB of data flash memory organized as two independent 1 KB blocks. Each block supports 10,000 erase/write cycles and is electrically isolated from program flash, allowing safe runtime updates of calibration data, configuration parameters, or user preferences without risking firmware integrity.
What package type is used for the R5F21217JFP?
The R5F21217JFP is housed in a 48-pin plastic LQFP package designated PLQP0048KB-A. It measures 7 mm × 7 mm with 0.5 mm pin pitch and complies with JEDEC MS-026 standards. This package supports reflow soldering and provides adequate thermal dissipation for automotive under-dash applications.
Can the R5F21217JFP operate across the full automotive temperature range?
The R5F21217JFP is qualified for −40°C to +85°C ambient operating temperature, meeting requirements for cabin and body electronics applications. For under-hood use exceeding 85°C, the pin-compatible R5F21217KFP variant (−40°C to +125°C) must be selected. Both share identical electrical characteristics and firmware compatibility.
R5F21217JFP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/2x/21
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- 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:
- 2K x 8
- 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:
R5F21217JFP FAQ
1.How can I place an order for R5F21217JFP through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21217JFP 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 R5F21217JFP reliable?
The price and inventory of R5F21217JFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21217JFP is usually 5 days.
3.What payment methods are accepted for R5F21217JFP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21217JFP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21217JFP?
R5F21217JFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21217JFP 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 R5F21217JFP?
For technical support, including R5F21217JFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21217JFP requirements.
6.How does Aetrix verify that R5F21217JFP is sourced from the original manufacturer or authorized distributors?
All R5F21217JFP 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 R5F21217JFP meets industry standards.
7.What is the process for return or replacement of R5F21217JFP?
All R5F21217JFP units undergo pre-shipment inspection (PSI). If there is an issue with R5F21217JFP, 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 R5F21217JFP part is unused and in its original packaging.
Return procedure for R5F21217JFP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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