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Renesas R5F21216JFP#U1
- Part No.:
- R5F21216JFP#U1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21216JFP#U1.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,052
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Product details
Overview
R5F21216JFP from Renesas Electronics is a 16-bit R8C/21 Group microcontroller featuring an R8C CPU core, 32 KB program flash ROM, 2 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 -40°C to +85°C ambient operation in automotive body electronics.
For engineers reviewing the R5F21216JFP datasheet, R5F21216JFP pinout, R5F21216JFP application, or R5F21216JFP equivalent, this MCU is selected for embedded control tasks requiring integrated LIN communication, on-chip data retention without external EEPROM, deterministic real-time interrupt handling with 7 priority levels, and robust analog sensing in constrained industrial or automotive subsystems.
Technical Context
The R5F21216JFP implements the R8C CPU core with 89 fundamental instructions and executes code at 50 ns minimum instruction time (20 MHz). Its memory architecture includes separate program ROM and dual-block data flash (1 KB × 2), enabling firmware updates and field-programmable calibration data storage without erasing application code.
Peripheral integration includes two UART channels (UART0 with LIN support, UART1), I²C bus interface, clock-synchronous serial I/O with chip select, four independent timer modules (RA/RB/RD/RE), and a watchdog timer with prescaler. All peripherals are mapped to dedicated SFRs and share a unified 1 Mbyte address space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions and register bank switching |
| Max Clock Frequency | 20 MHz at VCC = 3.0–5.5 V; enables 50 ns instruction cycle for real-time control loops |
| Memory | 32 KB program flash ROM + 2 × 1 KB data flash blocks + 2 KB RAM |
| Analog Interface | 10-bit A/D converter with 12 input channels (AN0–AN11), referenced to internal or external VREF |
| Timers | Timer RA/RB (8-bit × 2), Timer RD (16-bit × 2 with input capture/output compare), Timer RE (8-bit with compare match) |
| Communication | UART0 (LIN-capable), UART1, I²C bus interface, clock-synchronous serial I/O with chip select (SSI/SCS/SSCK/SSO) |
| Supply & Temp | VCC = 3.0–5.5 V; operating ambient temperature: -40°C to +85°C (J version) |
| Package | 48-pin LQFP (PLQP0048KB-A), 7 mm × 7 mm, 0.5 mm pitch |
Pinout & Package
Package: 48-pin plastic LQFP (PLQP0048KB-A), 7 mm × 7 mm body, 0.5 mm pin pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | General-purpose I/O / Analog inputs (AN0–AN7) | Configurable CMOS ports; AN0–AN7 serve as 10-bit ADC inputs with internal pull-up option |
| P1_0–P1_3 | General-purpose I/O / Key interrupt inputs (KI0–KI3) / Analog inputs (AN8–AN11) | KI0–KI3 support wake-up from low-power modes; AN8–AN11 extend ADC to 12 channels |
| P2_0–P2_7 | Timer RD I/O (TRDIOA0–TRDIOD1) / TRDCLK | Support input capture, output compare, and PWM generation on four independent 16-bit timer channels |
| P3_0, P3_1 | Timer RA/B outputs (TRAO, TRBO) | Dedicated outputs for PWM or pulse generation; TRAO used in LIN timing synchronization |
| P3_3–P3_5, P3_7 | I²C (SDA/SCL), clock-synchronous serial (SSI/SSCK/SSO), chip select (SCS) | Shared pins enable flexible peripheral selection; SDA/SCL support standard-mode I²C (100 kHz) |
| P4_2 | Reference voltage input (VREF) | Accepts external reference (0.5–VCC) for precise ADC measurements independent of supply variation |
| P4_6/P4_7 | XIN/XOUT crystal/resonator interface | Supports external 1–20 MHz crystal or ceramic resonator; XOUT is output-only; oscillator stop detection enabled |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes peripherals; debounced internally |
| MODE | Boot mode selection | Must be pulled high via resistor to enter normal operation; low state enables on-chip debug mode |
| VCC/AVCC, VSS/AVSS | Power and ground (digital/analog) | Separate analog power pins reduce noise coupling into ADC; decoupling capacitor required between AVCC/AVSS |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LIN 2.0/2.1 Module | Hardware LIN controller using UART0 and Timer RA eliminates software bit-banging; supports auto-sync, checksum, and break detection |
| Dual-Block Data Flash | Two independent 1 KB data flash blocks allow background erase/write while executing code from program ROM; 10,000 write/erase cycles |
| 7-Level Interrupt Priority | Hardware-prioritized interrupt controller enables deterministic response to critical events (e.g., LIN frame timeout, ADC conversion complete) |
| On-Chip Oscillators | High-speed (1–20 MHz adjustable) and low-speed (10–50 kHz) on-chip oscillators reduce BOM cost and board space vs. external crystals |
| Emulator Debug Support | Dedicated debug interface with reserved memory region (20000h–23FFFh); supports single-step, breakpoint, and register inspection |
| Power Management | Multiple low-power modes (HALT, STOP, IDLE) with wake-up via INT0–INT3, KI0–KI3, or UART activity; typical current draw 5.3 mA at 10 MHz |
Applications
| Automotive Body Control | 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: Primary MCU executing LIN slave node firmware, managing I/O states, and communicating with master ECU over LIN bus. Use Value: Integrated LIN hardware reduces CPU load by >30% vs. software-based implementations; dual data flash stores calibration and fault logs across power cycles. |
Use Scenario: Remote environmental monitoring unit with temperature, humidity, and pressure sensors feeding data to gateway via UART or I²C. IC Role / Device Role / Timing Role: Sensor interface MCU performing analog signal acquisition, digital filtering, and protocol translation before transmission. Use Value: 12-channel 10-bit ADC enables simultaneous multi-sensor sampling; low-power STOP mode extends battery life to >2 years on coin cell. |
| Home Appliance Control | Medical Diagnostic Equipment |
|
Use Scenario: Motor control and user interface management in washing machines, including water level sensing, spin speed regulation, and display driver logic. IC Role / Device Role / Timing Role: Real-time motor timing generator using Timer RD PWM outputs and feedback processing via ADC inputs. Use Value: 16-bit timers with input capture support precise tachometer measurement; data flash retains motor runtime statistics and error history. |
Use Scenario: Portable blood glucose meter requiring precise analog front-end, button-driven UI, and USB-serial data export. IC Role / Device Role / Timing Role: Signal conditioning and digitization hub interfacing electrochemical sensor, LCD, and host PC via UART. Use Value: Internal VREF pin ensures stable ADC reference under varying battery voltage; KI0–KI3 support low-power key wake-up with <1 µA standby current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21217JFP | 48 KB program ROM, same 2 KB RAM and dual 1 KB data flash; identical pinout and peripheral set | Higher firmware capacity for complex protocols or larger UI assets; no change to PCB or driver stack | Select when firmware size exceeds 32 KB but all other requirements (LIN, ADC, temp range) remain unchanged |
| R5F21206JFP | R8C/20 Group variant: same 32 KB ROM and 2 KB RAM, but no data flash; otherwise identical peripherals and package | Lacks nonvolatile parameter storage; requires external EEPROM or FRAM for configuration persistence | Choose only if data flash is unnecessary and cost reduction justifies added external component and firmware complexity |
Compared with R5F21216JFP, R5F21217JFP offers scalable code space without design changes, while R5F21206JFP removes data flash-requiring external memory for field-updatable parameters and increasing BOM count and layout area.
Availability
R5F21216JFP is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, home appliance control systems, and portable medical devices requiring stable component supply across extended product lifecycles.
Supply support for R5F21216JFP 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.
The R8C/21 Group, including R5F21216JFP, was designed for cost-sensitive, real-time embedded control in automotive sub-systems and industrial equipment where integrated LIN, analog sensing, and data retention are essential.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F21216JFP?
The R5F21216JFP operates at up to 20 MHz when supplied with VCC = 3.0–5.5 V. At lower frequencies (e.g., 10 MHz), it supports down to 2.7 V. This voltage/frequency envelope ensures reliable execution in automotive and industrial environments with variable power rails. The R5F21216JFP includes on-chip voltage detection and power-on reset circuits to maintain safe startup behavior across this range.
Does the R5F21216JFP include hardware support for LIN communication?
Yes, the R5F21216JFP integrates a dedicated hardware LIN module that combines UART0 and Timer RA to implement LIN 2.0/2.1 physical layer functions-including automatic sync field detection, checksum calculation, and break signal generation-without CPU intervention. This capability is confirmed in the R8C/21 Group hardware manual and enables deterministic, low-latency LIN slave operation in the R5F21216JFP.
How much data flash memory does the R5F21216JFP provide, and what is its endurance?
The R5F21216JFP provides two independent 1 KB data flash blocks (total 2 KB) with 10,000 write/erase cycles per block. This nonvolatile memory is electrically erasable under VCC = 2.7–5.5 V and is intended for storing calibration data, device configuration, or event logs. Unlike program ROM, data flash can be rewritten during application runtime without halting code execution in the R5F21216JFP.
What are the key differences between the R5F21216JFP and R5F21206JFP?
The R5F21216JFP belongs to the R8C/21 Group and includes dual 1 KB data flash blocks, whereas the R5F21206JFP (R8C/20 Group) has no data flash. Both share identical 32 KB program ROM, 2 KB RAM, pinout, peripherals, and temperature rating (-40°C to +85°C). The R5F21216JFP thus enables field-updatable parameters without external memory, a key differentiator in the R5F21216JFP's value proposition.
Which development tools and debug interfaces are supported for the R5F21216JFP?
The R5F21216JFP supports Renesas' E8 emulator debugger via its dedicated debug interface, with reserved memory region 20000h–23FFFh. It is compatible with the HEW (High-performance Embedded Workshop) IDE and CS+ toolchain. Debug features include hardware breakpoints, single-stepping, register inspection, and real-time variable watch-all accessible through the R5F21216JFP's MODE pin configuration and on-chip debug circuitry.
R5F21216JFP#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- 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:
R5F21216JFP#U1 FAQ
1.How can I place an order for R5F21216JFP#U1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21216JFP#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 R5F21216JFP#U1 reliable?
The price and inventory of R5F21216JFP#U1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21216JFP#U1 is usually 5 days.
3.What payment methods are accepted for R5F21216JFP#U1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21216JFP#U1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21216JFP#U1?
R5F21216JFP#U1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21216JFP#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 R5F21216JFP#U1?
For technical support, including R5F21216JFP#U1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21216JFP#U1 requirements.
6.How does Aetrix verify that R5F21216JFP#U1 is sourced from the original manufacturer or authorized distributors?
All R5F21216JFP#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 R5F21216JFP#U1 meets industry standards.
7.What is the process for return or replacement of R5F21216JFP#U1?
All R5F21216JFP#U1 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21216JFP#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 R5F21216JFP#U1 part is unused and in its original packaging.
Return procedure for R5F21216JFP#U1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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