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Renesas R5F2LA8AADFP#V0
- Part No.:
- R5F2LA8AADFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F2LA8AADFP#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,246
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Product details
Overview
R5F2LA8AADFP#V0 from Renesas Electronics is an 80-pin LQFP microcontroller in the R8C/LA8A Group, featuring the R8C CPU core, 96 KB program flash, 2 KB × 2 data flash, and 5.5 KB RAM. It delivers 50 ns minimum instruction execution at 20 MHz (VCC = 2.7–5.5 V), integrates a 16×16→32-bit hardware multiplier, and supports real-time clock (Timer RH), three 16-bit Timer RJ channels, and 12-channel 10-bit A/D conversion - used in appliance control panels with integrated LCD drivers.
For engineers reviewing the R5F2LA8AADFP#V0 datasheet, R5F2LA8AADFP#V0 pinout, R5F2LA8AADFP#V0 application, or R5F2LA8AADFP#V0 equivalent, key selection criteria include its 72 programmable I/O ports (10 high-current), 40-segment LCD drive capability, dual UART/I²C/SSU serial interfaces, low-power stop mode (0.5 µA), and −40 to +85°C D-version operating range.
Technical Context
The R5F2LA8AADFP#V0 implements the R8C CPU core with 89 fundamental instructions and a dedicated 16×16-bit multiplier supporting multiply-accumulate operations. Its memory subsystem includes on-chip program ROM, dual-bank data flash for safe firmware updates, and RAM with banked configuration.
Peripheral integration centers on mixed-signal control: Timer RJ0–RJ2 provide pulse width measurement, event counting, and PWM generation; Timer RH offers calendar-mode real-time clock with alarm output; and the 12-channel A/D converter includes sample-and-hold and internal temperature sensor (−40 to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C core with 89 instructions; enables compact code footprint and deterministic 50 ns min. instruction timing at 20 MHz. |
| Memory | 96 KB program flash + 2 KB × 2 data flash + 5.5 KB RAM - supports field firmware updates without external EEPROM. |
| A/D Converter | 10-bit resolution × 12 channels with sample-and-hold; enables simultaneous monitoring of multiple analog sensors (e.g., thermistors, voltage rails). |
| LCD Drive | 40-segment × 4-common output; drives alphanumeric LCDs directly in household appliance UIs without external driver ICs. |
| Power Modes | Stop mode draws 0.5 µA (VCC = 3.0 V); power-off 0 mode draws 0.01 µA - extends battery life in standby appliances. |
| Operating Temp | −40°C to +85°C (D version); qualified for industrial-grade consumer equipment including HVAC controllers and kitchen appliances. |
| I/O Ports | 72 programmable CMOS I/O pins, including 10 high-current drive ports (20 mA) for direct LED or relay driving. |
Pinout & Package
Package: 80-pin LQFP (PLQP0080KB-A), 0.5 mm pitch, 12 × 12 mm body, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0 to P0_7 | Programmable I/O / SEG0–SEG7 | Shared segment outputs for LCD; configurable as general-purpose I/O or analog inputs (AN0–AN1). |
| P1_0 to P1_7 | Programmable I/O / SEG8–SEG15 | Support up to 40-segment LCD drive; also serve as interrupt inputs (KI0–KI7) and timer capture inputs. |
| P2_0 to P2_7 | Programmable I/O / SEG16–SEG23 | Extend LCD segment count; include TRB0O/TRB1O for 8-bit timer PWM outputs. |
| P3_0 to P3_7 | Programmable I/O / SEG24–SEG31 | Enable full 40-segment support; double-function as INT0–INT7 and A/D trigger (ADTRG). |
| P4_0 to P4_7 | Programmable I/O / SEG32–SEG39 | Final segment group; P4_6/P4_7 are COMEXP and SEG39 - critical for multiplexed LCD bias control. |
| P5_0 to P5_3 | COM0–COM3 / KI4–KI7 | 4 common outputs for LCD backplane drive; also function as key interrupt inputs for touchless keypad interfaces. |
| P7_0 to P7_2 | AN4–AN6 / IVREF3 / WKUP1 | Analog inputs with internal reference; enable wake-up from stop mode via external analog event detection. |
| P8_0 to P8_7 | UART0/UART2, SSU, I²C, TRJ0–TRJ1, TRCIOx | Dual serial interfaces share pins; TRJ0/TRJ1 support JTAG-like debug; TRCIOx enable trace clock/data for real-time profiling. |
| RESET, MODE, VCC, VSS, XCIN, XCOUT, XIN, XOUT | Power, clock, and reset control | XCIN/XCOUT support 32 kHz crystal for RTC; XIN/XOUT support main 20 MHz crystal; MODE pin selects boot mode at power-on. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip data flash | 2 KB × 2 banks enable atomic firmware updates and parameter storage without external memory. |
| Real-time clock (Timer RH) | Calendar-mode counter (sec/min/hr/day/date/month/year) with alarm output - eliminates need for external RTC IC. |
| 12-channel 10-bit A/D | Includes internal temperature sensor and sweep mode - allows single-scan acquisition across all channels for thermal management. |
| 40-segment LCD controller | Integrated bias generation (1/2, 1/3) and duty control (static, 1/2–1/4) - drives segment-based displays without external bias resistors. |
| Low-power stop mode | 0.5 µA consumption with RTC active - supports long-term battery operation in smart appliance standby states. |
| Hardware multiplier | 16×16→32-bit MAC unit accelerates motor control algorithms and digital filter computations in real time. |
Applications
| Refrigerator Control Panel | Microwave Oven UI |
|---|---|
Use Scenario: Managing temperature setpoints, defrost cycles, door-open alerts, and multi-segment LCD display. IC Role / Device Role / Timing Role: Main system controller executing real-time thermal regulation, user input scanning, and LCD refresh at 60 Hz. Use Value: Integrated 40-segment LCD drive and 12-channel A/D eliminate external driver and sensor interface ICs, reducing BOM cost by ~$0.35/unit. |
Use Scenario: Handling keypad input, cooking time countdown, power level PWM, and segmented display of time/power settings. IC Role / Device Role / Timing Role: Central timing and control unit synchronizing magnetron PWM (via Timer RC), rotary encoder input, and RTC-based timer expiration. Use Value: Hardware multiplier enables fast PID loop computation for cavity temperature stabilization; stop mode reduces standby power to <1 mW. |
| Smart Air Purifier | Induction Cooktop Interface |
Use Scenario: Monitoring PM2.5/CO₂ sensors, fan speed control, filter-life calculation, and 4-line LCD status display. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog (A/D), digital (I²C), and PWM outputs while maintaining RTC for runtime logging. Use Value: Dual UART/I²C interfaces allow concurrent communication with air quality sensor modules and Bluetooth LE transceivers. |
Use Scenario: Detecting pan presence (capacitive sensing), regulating coil current (high-frequency PWM), and displaying power level on segmented LCD. IC Role / Device Role / Timing Role: High-precision timing controller generating 20–100 kHz resonant inverter gate signals using Timer RJ PWM outputs. Use Value: 10 high-current I/O pins drive LEDs and buzzer directly; 72 total I/O support expansion for future touch-sensing overlay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2LA88ADFP | 64 KB program ROM, same 80-pin LQFP package, identical peripherals and pinout. | Suitable where firmware size <64 KB; lower cost when full 96 KB is unnecessary. | Select R5F2LA88ADFP if application code fits within 64 KB and BOM cost optimization is prioritized. |
| R5F2LA8AANFA | Same 96 KB ROM and peripherals, but in 80-pin LQFP with 0.65 mm pitch (PLQP0080JA-A) instead of 0.5 mm. | Preferred for legacy PCB layouts designed for wider-pitch footprints or manual assembly. | Choose R5F2LA8AANFA when board rework for fine-pitch LQFP is impractical or yield-sensitive. |
Compared with R5F2LA88ADFP, the R5F2LA8AADFP#V0 provides 32 KB additional program flash for feature-rich firmware and OTA update partitions; versus R5F2LA8AANFA, it offers tighter 0.5 mm pitch for higher-density layouts but requires finer SMT process control.
Availability
R5F2LA8AADFP#V0 is available at Aetrix Electronics and suitable for refrigerator control panels, microwave oven UIs, smart air purifiers, induction cooktop interfaces, and HVAC thermostats requiring stable component supply across extended production lifecycles.
Supply support for R5F2LA8AADFP#V0 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The R8C/LA8A Group - including R5F2LA8AADFP#V0 - was engineered for cost-sensitive, low-power consumer appliance control with integrated LCD, A/D, and RTC functions, minimizing external component count.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F2LA8AADFP#V0?
The R5F2LA8AADFP#V0 operates at up to 20 MHz when supplied with 2.7–5.5 V, achieving a minimum instruction execution time of 50 ns. At reduced 8 MHz operation, it supports down to 1.8 V - enabling compatibility with single-cell Li-ion or wide-input industrial supplies. This dual-voltage capability ensures robustness across diverse appliance power architectures.
Does the R5F2LA8AADFP#V0 support in-circuit debugging and flash programming?
Yes, the R5F2LA8AADFP#V0 includes an on-chip debug function accessible via the TRJ0/TRJ1 pins (JTAG-compatible interface), allowing full breakpoint, step-through, and memory inspection during development. It also supports on-board flash rewrite - enabling field firmware updates without removing the device from the PCB.
How many analog input channels does the R5F2LA8AADFP#V0's A/D converter support, and what is its resolution?
The R5F2LA8AADFP#V0 integrates a 10-bit successive-approximation A/D converter with 12 input channels, including dedicated pins for temperature sensing (internal sensor) and external analog signals. It features sample-and-hold and hardware sweep mode - allowing automatic sequential conversion across all enabled channels with minimal CPU overhead.
Can the R5F2LA8AADFP#V0 drive a 40-segment LCD directly, and what bias configurations are supported?
Yes, the R5F2LA8AADFP#V0's integrated LCD drive control circuit supports up to 40 segment outputs and 4 common outputs, with selectable bias (1/2, 1/3) and duty (static, 1/2, 1/3, 1/4). This eliminates external LCD driver ICs and discrete bias networks, simplifying design for 4-digit alphanumeric displays in consumer appliances.
What low-power modes are available on the R5F2LA8AADFP#V0, and what is the lowest current draw?
The R5F2LA8AADFP#V0 offers wait, stop, and multiple power-off modes. In stop mode, it draws 0.5 µA (VCC = 3.0 V); in power-off 0 mode with Timer RH disabled, consumption drops to 0.01 µA - ideal for battery-backed real-time clock retention in always-on appliance subsystems.
R5F2LA8AADFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- R8C/Lx/A8A
- 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:
- LCD, POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 72
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 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:
R5F2LA8AADFP#V0 FAQ
1.How can I place an order for R5F2LA8AADFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2LA8AADFP#V0 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 R5F2LA8AADFP#V0 reliable?
The price and inventory of R5F2LA8AADFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2LA8AADFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F2LA8AADFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2LA8AADFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2LA8AADFP#V0?
R5F2LA8AADFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2LA8AADFP#V0 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 R5F2LA8AADFP#V0?
For technical support, including R5F2LA8AADFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2LA8AADFP#V0 requirements.
6.How does Aetrix verify that R5F2LA8AADFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F2LA8AADFP#V0 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 R5F2LA8AADFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F2LA8AADFP#V0?
All R5F2LA8AADFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2LA8AADFP#V0, 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 R5F2LA8AADFP#V0 part is unused and in its original packaging.
Return procedure for R5F2LA8AADFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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