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Renesas R5F21217JFP#U1
- Part No.:
- R5F21217JFP#U1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21217JFP#U1.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,267
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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, dual 1 KB data flash blocks, 2.5 KB RAM, and integrated peripherals including 12-channel 10-bit ADC, UART0/UART1, I²C bus interface, hardware LIN module, and multiple timers (RA, RB, RD×2, RE) - deployed in automotive body control units and industrial sensor nodes requiring embedded nonvolatile data logging.
For engineers reviewing the R5F21217JFP datasheet, R5F21217JFP pinout, R5F21217JFP application, or R5F21217JFP equivalent, this page delivers verified technical context, package mapping to PLQP0048KB-A (48-pin LQFP), validated pin functions, real-world use scenarios, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The R5F21217JFP implements the R8C CPU core with 89 fundamental instructions and executes at 50 ns minimum instruction time (20 MHz XIN, 3.0–5.5 V). It supports single-chip operation with 1 Mbyte address space and integrates dual independent 1 KB data flash blocks for EEPROM-like wear-leveling and field firmware updates without external memory.
Its peripheral set includes Timer RD (16-bit ×2 channels with input capture/output compare), hardware LIN using Timer RA and UART0, and on-chip oscillators (high-speed adjustable, low-speed) with XIN/XOUT oscillation stop detection - enabling robust timing control in automotive subsystems operating from −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions; enables compact code size and deterministic real-time response. |
| Flash Memory | 48 KB program ROM + 2 × 1 KB data flash blocks; supports in-system programming and data retention over 10,000 erase/write cycles. |
| RAM | 2.5 KB on-chip SRAM; sufficient for stack, variables, and interrupt service routines in mid-complexity control applications. |
| ADC | 10-bit successive-approximation A/D converter with 12 analog inputs; provides precision sensing for temperature, voltage, and current monitoring. |
| Timers | Timer RA/RB (8-bit ×2), Timer RD (16-bit ×2 with input capture/output compare), Timer RE (8-bit compare match); supports PWM generation, pulse measurement, and time-stamped event handling. |
| Serial Interfaces | UART0 (LIN-capable), UART1, I²C bus interface (2-wire), clock-synchronous serial I/O with chip select; enables multi-protocol communication with sensors, ECUs, and displays. |
| Operating Range | −40°C to +85°C ambient temperature, 3.0–5.5 V supply; qualified for standard-grade automotive and industrial environments. |
Pinout & Package
Package: PLQP0048KB-A - 48-pin plastic quad flat package (LQFP), 7 mm × 7 mm body, 0.5 mm pin pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0 to P0_7 | Analog Input / I/O Port | 12-channel ADC inputs (AN0–AN7) and general-purpose CMOS I/O; configurable pull-up and direction per pin. |
| P1_0 to P1_3 | Key Input / Analog Input | KI0–KI3 key interrupt inputs and AN8–AN11 ADC channels; supports wake-up from low-power modes via external button press. |
| P2_0 to P2_7 | Timer RD I/O | TRDIOA0–TRDIOD1 and TRDCLK pins; enable quadrature decoding, PWM output, and external clock synchronization for motor control. |
| P3_0, P3_1 | Timer Output | TRAO (Timer RA output) and TRBO (Timer RB output); drive external logic or generate precise timing signals without software overhead. |
| P4_2 | VREF Input | Reference voltage input for ADC; allows ratiometric measurement and improved accuracy when paired with stable external reference. |
| P4_6 / P4_7 | XIN / XOUT | Crystal/resonator interface for main system clock; supports 20 MHz operation with on-chip feedback resistor and oscillation stop detection. |
| P6_0 | TREO Output | Timer RE divided clock output; provides programmable clock signal for external peripherals or synchronous logic timing. |
| RESET | Active-Low Reset | Asynchronous reset input; initiates hardware reset sequence upon low assertion, compatible with external supervisor ICs. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Data Flash Blocks | Two independent 1 KB data flash blocks (A/B) enable wear leveling and background reprogramming - critical for logging trip data or calibration parameters in automotive ECUs. |
| Hardware LIN Module | Integrated LIN 2.0/2.1 transceiver logic using Timer RA and UART0; eliminates external transceiver for cost-sensitive body electronics like door modules and seat controllers. |
| On-Chip Oscillators | High-speed (adjustable 1–20 MHz) and low-speed (125 kHz) on-chip oscillators reduce BOM count and improve startup reliability vs. external crystals. |
| 12-Channel 10-bit ADC | Simultaneous sampling not supported, but 12-channel multiplexed conversion with programmable sample-and-hold timing enables accurate multi-sensor monitoring in HVAC or lighting systems. |
| Interrupt Architecture | 7-level priority with 11 internal, 5 external, and 4 software interrupt sources; ensures deterministic latency for safety-critical tasks like fault detection and response. |
Applications
| Automotive Door Control Module | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing LIN slave protocol, reading switch inputs, driving motor drivers, and managing EEPROM-backed user preferences. Use Value: Dual data flash blocks store window position limits and lock configuration across 10,000+ cycles; hardware LIN reduces component count and EMI vs. discrete UART + transceiver. |
Use Scenario: Wireless-capable environmental monitor deployed in factory machinery enclosures with wide thermal variation. IC Role / Device Role / Timing Role: Sensor aggregator acquiring thermistor and RTD readings, performing linearization, and formatting data for RF transmission. Use Value: 12-channel ADC interfaces multiple temperature points; 2.5 KB RAM buffers burst samples before transmission; −40°C to +85°C rating ensures reliability near motors and drives. |
| Home Appliance Motor Controller | Medical Diagnostic Handheld |
Use Scenario: Brushless DC motor control in washing machine drum and pump subsystems. IC Role / Device Role / Timing Role: Real-time commutation engine using Timer RD input capture for rotor position feedback and PWM outputs for gate drivers. Use Value: Timer RD's dual 16-bit channels support simultaneous hall-sensor edge detection and PWM generation; 48 KB flash accommodates motor profile tables and safety diagnostics. |
Use Scenario: Portable blood glucose meter with analog front-end, LCD driver, and USB connectivity. IC Role / Device Role / Timing Role: System controller managing photodiode signal acquisition, calibration correction, display refresh, and host communication. Use Value: Integrated 10-bit ADC achieves ±1 LSB INL for clinical-grade accuracy; UART1 supports USB-to-serial bridge ICs; 3.0–5.5 V operation simplifies battery management with single-cell Li-ion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21217KFP | Identical architecture and peripherals, but rated for −40°C to +125°C operation and uses higher-voltage-tolerant process; requires validation for extended thermal cycling. | Targeted at under-hood automotive applications (e.g., engine bay sensors) where ambient exceeds 85°C. | Select R5F21217KFP only if full −40°C to +125°C operation is required; otherwise, R5F21217JFP offers lower cost and same functionality for cabin/body modules. |
| R5F21227JFP | Same R8C/21 Group family, but with 64 KB program ROM, 3 KB RAM, and identical data flash (2 × 1 KB); pin-compatible in PLQP0048KB-A package. | Suitable for applications needing larger firmware image (e.g., OTA update stacks, enhanced UI logic) without changing PCB layout. | R5F21227JFP is a direct memory-upgrade option; verify flash usage and RAM allocation in existing firmware before migration. |
Compared with R5F21217KFP and R5F21227JFP, the R5F21217JFP delivers optimal balance of cost, thermal range, and memory for entry-level automotive and industrial control - offering full feature parity with KFP at lower qualification cost, and smaller footprint than R5F21227JFP where 48 KB ROM suffices.
Availability
R5F21217JFP is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, home appliance motor control, and portable medical devices 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 the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The R8C/21 Group, including R5F21217JFP, was designed for cost-sensitive, real-time embedded control in automotive body electronics and industrial equipment - emphasizing integrated peripherals, data flash reliability, and extended temperature operation without external components.
FAQ
What is the maximum operating frequency of the R5F21217JFP?
The R5F21217JFP supports a maximum XIN clock frequency of 20 MHz at VCC = 3.0–5.5 V, delivering a minimum instruction execution time of 50 ns. This timing is guaranteed across its full −40°C to +85°C operating ambient range and enables deterministic real-time performance in control loops and communication protocols.
Does the R5F21217JFP include on-chip debug capability?
Yes, the R5F21217JFP supports on-chip debugging via the single-wire debug interface using the RESET pin. It is compatible with Renesas E8/E8a emulators and allows full breakpoint, watchpoint, and memory inspection functionality without requiring dedicated debug pins - simplifying PCB layout and reducing pin count.
How is data flash endurance specified for the R5F21217JFP?
The R5F21217JFP specifies 10,000 erase/write cycles for each of its two 1 KB data flash blocks (Block A and Block B). This endurance rating applies under standard operating conditions (VCC = 2.7–5.5 V, TA = −40°C to +85°C) and enables reliable field updates and parameter storage in automotive and industrial applications.
Can the R5F21217JFP operate from a single 3.3 V supply?
Yes, the R5F21217JFP operates across VCC = 3.0–5.5 V, making it fully compatible with 3.3 V systems. At 3.3 V, it supports up to 16 MHz XIN frequency (per K-version specs), and all I/Os are 5 V tolerant - allowing seamless interfacing with legacy 5 V peripherals without level shifters.
What peripheral resources does the R5F21217JFP provide for motor control?
The R5F21217JFP provides Timer RD (16-bit ×2 channels with input capture/output compare), Timer RA/RB outputs (TRAO/TRBO), and 12-channel ADC - enabling closed-loop BLDC commutation, current sensing, and position feedback acquisition. Its 41 GPIOs support gate driver enable/disable, fault signaling, and auxiliary control signals without external logic.
R5F21217JFP#U1 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#U1 FAQ
1.How can I place an order for R5F21217JFP#U1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21217JFP#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 R5F21217JFP#U1 reliable?
The price and inventory of R5F21217JFP#U1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21217JFP#U1 is usually 5 days.
3.What payment methods are accepted for R5F21217JFP#U1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21217JFP#U1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21217JFP#U1?
R5F21217JFP#U1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21217JFP#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 R5F21217JFP#U1?
For technical support, including R5F21217JFP#U1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21217JFP#U1 requirements.
6.How does Aetrix verify that R5F21217JFP#U1 is sourced from the original manufacturer or authorized distributors?
All R5F21217JFP#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 R5F21217JFP#U1 meets industry standards.
7.What is the process for return or replacement of R5F21217JFP#U1?
All R5F21217JFP#U1 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21217JFP#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 R5F21217JFP#U1 part is unused and in its original packaging.
Return procedure for R5F21217JFP#U1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21217JFP#U1 Tags
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