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Renesas R5F2L3A8BNFP#U1
- Part No.:
- R5F2L3A8BNFP#U1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F2L3A8BNFP#U1.pdf
- Description:
- 16-BIT, FLASH, R8C CPU
- Quantity:
- Payment:
- Shipping:
Inventory:3,707
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Product details
Overview
R5F2L3A8BNFP#U1 from Renesas Electronics is a 16-bit R8C/L3AB Group microcontroller featuring the R8C CPU core, 128 KB flash program memory, 10 KB RAM, and integrated LCD controller supporting up to 8 common and 56 segment outputs. It operates at up to 20 MHz (VCC = 2.7–5.5 V), includes 88 programmable CMOS I/O ports with 16 high-current drive pins, and targets embedded control in cost-sensitive consumer and industrial displays.
For engineers reviewing the R5F2L3A8BNFP#U1 datasheet, R5F2L3A8BNFP#U1 pinout, R5F2L3A8BNFP#U1 application, or R5F2L3A8BNFP#U1 equivalent, key selection criteria include its 100-pin LQFP package, -40°C to +85°C operating range (D version), on-chip debug support, background operation (BGO) for data flash, and hardware LIN interface using Timer RA and UART0.
Technical Context
The R5F2L3A8BNFP#U1 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. It supports single-chip mode with 1 Mbyte address space and executes instructions in as little as 50 ns at 20 MHz.
Its peripheral set includes Timer RD (16-bit ×2, 6-pin PWM, complementary three-phase output), UART0/1/2 (with I²C and LIN modes), 20-channel 10-bit ADC with sweep mode, dual 8-bit DACs, two comparators, and an integrated LCD driver with voltage multiplier and bias control (1/2, 1/3, 1/4 duty).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit multiplier, and MAC instruction - enables efficient motor control and sensor processing loops. |
| Flash Memory | 128 KB program ROM + no data flash (B-group variant) - supports firmware updates via on-chip debug but lacks background reprogramming capability. |
| RAM | 10 KB internal RAM - sufficient for real-time task stacks, LCD frame buffers, and communication protocol handling. |
| Operating Voltage | 1.8–5.5 V supply range - allows direct interface with 3.3 V or 5 V logic systems without level shifters. |
| Current Consumption | Typ. 7 mA @ 5 V/20 MHz; 2 µA in stop mode - enables battery-powered display applications with extended sleep cycles. |
| Temperature Range | -40°C to +85°C (D version) - qualified for industrial-grade operation in HVAC controls and factory HMI panels. |
| I/O Ports | 88 programmable CMOS I/O pins, including 16 high-current drive outputs - drives LED segments directly and interfaces with pushbuttons, sensors, and relays. |
Pinout & Package
Package: 100-pin LQFP (PLQP0100JA-A), 14 mm × 14 mm, 0.5 mm pitch, exposed pad for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core and I/O rail decoupling; exposed pad must be soldered to PCB ground plane. |
| P00–P07, P10–P13, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77, P100–P107, P110–P117 | Programmable I/O ports | 88 total pins configurable as digital input/output, interrupt sources, timer channels, or analog inputs (ADC/A/D); pull-up resistors selectable per port. |
| SEG0–SEG55, COM0–COM7 | LCD segment/common drivers | Direct drive of up to 56-segment × 8-common multiplexed LCDs; internal bias generator eliminates external resistor networks. |
| XIN/XOUT, XCIN/XOUT | Crystal oscillator inputs | Supports 20 MHz main crystal (XIN) and 32.768 kHz RTC crystal (XCIN) - enables precise real-time clock and high-speed system timing. |
| RESET, NMI | Reset and non-maskable interrupt | Active-low RESET with built-in power-on reset and voltage detection; NMI supports emergency fault recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Interface | Full LIN 2.0/2.1 compliance via UART0 + Timer RA - eliminates external transceiver for automotive body electronics and appliance sub-networks. |
| Real-Time Clock (Timer RE) | 8-bit counter with calendar mode (seconds/minutes/hours/days) - maintains timekeeping in stop mode with only 1 µA current draw (timer RE enabled). |
| 10-Bit ADC with Sweep Mode | 20-channel simultaneous sampling with auto-scan and result buffering - simplifies multi-sensor monitoring (e.g., temperature, light, potentiometer) without CPU polling. |
| Complementary PWM (Timer RD) | Three-phase waveform generation with dead-time insertion and synchronous reset - suitable for BLDC motor gate driving in fans and pumps. |
| On-Chip Debug Support | Fully integrated debug interface with flash rewrite capability - enables field firmware updates and real-time trace without external JTAG emulator. |
Applications
| Home Appliance Control Panel | Industrial HMI Display |
|---|---|
|
Use Scenario: Microwave oven or washing machine front panel with segmented LCD, touch keys, and motor control feedback. IC Role / Device Role / Timing Role: Main system controller managing user input, LCD refresh, relay/LED actuation, and BLDC fan speed via complementary PWM. Use Value: Integrated LCD driver and 20-channel ADC reduce BOM count by eliminating external display controllers and analog front-ends. |
Use Scenario: Factory floor operator interface with 4-digit numeric display, status LEDs, and serial communication to PLC. IC Role / Device Role / Timing Role: Standalone display manager handling keypad scanning, segment drive, RS-485 UART communication, and watchdog supervision. Use Value: 88 I/O pins and -40°C to +85°C rating enable direct integration into uncontrolled industrial enclosures without additional thermal management. |
| Smart Thermostat Display | POS Terminal Keypad Controller |
|
Use Scenario: Battery-powered wall-mounted thermostat with 7-segment LCD, ambient temperature sensing, and wireless module interface. IC Role / Device Role / Timing Role: Low-power system controller using stop mode between sensor reads, RTC wake-up, and UART-based BLE/Wi-Fi co-processor handshaking. Use Value: 2 µA stop-mode current and integrated 32.768 kHz oscillator minimize battery drain while maintaining accurate timekeeping. |
Use Scenario: Point-of-sale terminal with 16-key matrix, backlight control, buzzer, and USB-to-UART bridge interface. IC Role / Device Role / Timing Role: Keypad and peripheral coordinator managing key debounce, LED dimming via PWM, audio tone generation, and UART bridging to host PC. Use Value: Dual 8-bit DACs generate precise buzzer tones; 16 high-current I/O pins drive LEDs and buzzer directly without external drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2L3AA2DNFP | Same R8C/L3AA Group, 128 KB flash, 10 KB RAM, D-version, but includes 1 KB × 4 data flash with BGO - adds background reprogramming capability. | Preferred where firmware field updates require zero-interrupt latency during flash writes (e.g., medical device calibration data logging). | Select R5F2L3AA2DNFP if data flash BGO is required; otherwise R5F2L3A8BNFP#U1 offers identical core/peripheral functionality at lower cost. |
| R5F2L3AB2DNFP | Same R8C/L3AB Group, same 128 KB/10 KB memory, same D-temp grade, but uses 64-pin LQFP package - reduces I/O count to 52 pins and LCD support to 32 segments. | Suitable for space-constrained designs with simpler display requirements (e.g., 4-digit LED + 2-button interface). | Choose R5F2L3AB2DNFP only when board area is critical and full 88 I/O/56-segment LCD capability is unnecessary. |
Compared with R5F2L3A8BNFP#U1, R5F2L3AA2DNFP adds data flash BGO at the cost of marginally higher price, while R5F2L3AB2DNFP sacrifices I/O and LCD resources for smaller footprint - neither is pin-compatible, requiring PCB redesign.
Availability
R5F2L3A8BNFP#U1 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI displays, and smart thermostat interfaces requiring stable component supply and long-term industrial lifecycle support.
Supply support for R5F2L3A8BNFP#U1 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/L3AB Group, including R5F2L3A8BNFP#U1, was designed for cost-optimized, display-intensive embedded applications requiring integrated LCD control, low-power operation, and robust peripheral integration in consumer and industrial equipment.
FAQ
What is the package type and pin count of R5F2L3A8BNFP#U1?
R5F2L3A8BNFP#U1 uses a 100-pin LQFP package (PLQP0100JA-A) with 0.5 mm pitch and an exposed thermal pad. This package provides 88 programmable I/O pins plus dedicated power, ground, clock, reset, and debug interface connections - enabling high peripheral integration without external glue logic.
Does R5F2L3A8BNFP#U1 include data flash memory?
No, R5F2L3A8BNFP#U1 belongs to the R8C/L3B subgroup and does not include data flash memory. Unlike the 'A' subgroup variants (e.g., R5F2L3AA2DNFP), it has 128 KB program flash only, with no background operation (BGO) capability - firmware updates require full flash erase cycles via on-chip debug.
What LCD display configurations does R5F2L3A8BNFP#U1 support?
R5F2L3A8BNFP#U1 supports up to 8 common outputs and 56 segment outputs with selectable bias (1/2, 1/3, 1/4) and duty (static, 1/2, 1/3, 1/4, 1/8). Its integrated voltage multiplier and regulator eliminate external components, enabling direct drive of multiplexed character or custom segment LCDs in appliances and instrumentation.
Is R5F2L3A8BNFP#U1 qualified for industrial temperature operation?
Yes, R5F2L3A8BNFP#U1 is the D-version part, rated for -40°C to +85°C operating ambient temperature. This qualification meets industrial-grade requirements for deployment in factory automation panels, HVAC controllers, and outdoor kiosks without additional thermal derating or heatsinking.
What debug and programming interfaces does R5F2L3A8BNFP#U1 provide?
R5F2L3A8BNFP#U1 features full on-chip debug support via a single-pin SWD-compatible interface, enabling real-time debugging, flash programming, and memory inspection without external JTAG hardware. It also supports on-board flash rewrite through the debug interface, allowing field firmware updates.
R5F2L3A8BNFP#U1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- LCD, POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 88
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 20x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2L3A8BNFP#U1 FAQ
1.How can I place an order for R5F2L3A8BNFP#U1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2L3A8BNFP#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 R5F2L3A8BNFP#U1 reliable?
The price and inventory of R5F2L3A8BNFP#U1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2L3A8BNFP#U1 is usually 5 days.
3.What payment methods are accepted for R5F2L3A8BNFP#U1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2L3A8BNFP#U1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2L3A8BNFP#U1?
R5F2L3A8BNFP#U1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2L3A8BNFP#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 R5F2L3A8BNFP#U1?
For technical support, including R5F2L3A8BNFP#U1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2L3A8BNFP#U1 requirements.
6.How does Aetrix verify that R5F2L3A8BNFP#U1 is sourced from the original manufacturer or authorized distributors?
All R5F2L3A8BNFP#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 R5F2L3A8BNFP#U1 meets industry standards.
7.What is the process for return or replacement of R5F2L3A8BNFP#U1?
All R5F2L3A8BNFP#U1 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2L3A8BNFP#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 R5F2L3A8BNFP#U1 part is unused and in its original packaging.
Return procedure for R5F2L3A8BNFP#U1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F2L3A8BNFP#U1 Tags
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