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Renesas R5F2LA64ANFA#U0
- Part No.:
- R5F2LA64ANFA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F2LA64ANFA#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,687
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Product details
Overview
R5F2LA64ANFA#U0 from Renesas Electronics is a 16-bit R8C/LA6A Group microcontroller featuring the R8C CPU core, 16 KB program flash, 2 KB RAM, and 2 KB data flash. It delivers 50 ns minimum instruction execution at 20 MHz (VCC = 2.7–5.5 V), integrates an on-chip 16×16-bit multiplier, and supports 56 programmable CMOS I/O pins with LCD segment drive (up to 32 segments) for embedded control in appliance user interfaces.
For engineers reviewing the R5F2LA64ANFA#U0 datasheet, R5F2LA64ANFA#U0 pinout, R5F2LA64ANFA#U0 application, or R5F2LA64ANFA#U0 equivalent, key selection criteria include its 64-pin LQFP-0.8 mm pitch package, −20 to +85°C N-version operating range, integrated real-time clock (Timer RH), 8-channel 10-bit ADC with temperature sensor, and UART0/SSU/I²C serial interface support.
Technical Context
The R5F2LA64ANFA#U0 implements the R8C CPU core with 89 fundamental instructions and a dedicated 16×16→32-bit hardware multiplier enabling efficient signal processing and control math. Its system clock generation includes four independent circuits: XIN oscillator (up to 20 MHz), XCIN 32 kHz crystal input, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - all selectable via software for dynamic power management.
Peripheral integration centers on deterministic timing and mixed-signal capability: Timer RB0/RB1 (8-bit ×2 with PWM), Timer RC (16-bit with 4 capture/compare registers), Timer RH (real-time clock with calendar mode), and Timer RJ0/RJ1 (16-bit ×2 for pulse width/period measurement). The MCU also embeds voltage detection (power-on reset + dual-level VDD monitoring) and a watchdog timer with selectable low-speed oscillator source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions; enables compact code size and deterministic 50 ns min. instruction cycle at 20 MHz. |
| Memory | 16 KB program flash + 2 KB data flash + 2 KB RAM; supports in-system reprogramming and secure ID code protection. |
| Operating Voltage | 1.8–5.5 V; allows direct interfacing with 3.3 V and 5 V logic without level shifters across industrial supply ranges. |
| I/O Pins | 56 programmable CMOS I/O ports with selectable pull-up resistors; includes 8 high-current drive pins for direct LED/relay driving. |
| ADC | 10-bit resolution × 8 channels with sample-and-hold and internal temperature sensor (−20 to +85°C range). |
| LCD Driver | Supports static/1/2/1/3/1/4 duty and 1/2 or 1/3 bias; drives up to 4 common × 32 segment LCDs without external bias circuitry. |
| Timers | Timer RB0/RB1 (8-bit PWM), Timer RC (16-bit with 3-PWM output), Timer RH (calendar-mode RTC), Timer RJ0/RJ1 (16-bit event counters). |
| Serial Interfaces | UART0 (clock sync/UART), SSU (shared with I²C-bus), and I²C-bus (multi-master capable); no UART2 or Timer RJ2. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064GA-A), 0.8 mm pin pitch, exposed pad not specified, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC | Power supply | Main digital and analog supply (1.8–5.5 V); separate AVCC pin enables clean analog reference for ADC/LCD. |
| VSS / AVSS | Ground | Digital and analog ground planes; separation reduces noise coupling into ADC and LCD drivers. |
| XIN / XOUT | High-speed crystal oscillator | Connects to external 1–20 MHz crystal; XOUT is buffered output for driving secondary loads or feedback. |
| P0_0–P0_7 | Programmable I/O port | 8-bit port with shared functions: SEG0–SEG7, INT7, ADTRG, TRCTRG; supports LCD segment drive and analog trigger inputs. |
| P1_0–P1_7 | Programmable I/O port | 8-bit port with SEG8–SEG15, KI6/KI7, INT4–INT7; provides additional LCD segments and keypad interrupt inputs. |
| P2_0–P2_7 | Programmable I/O port | 8-bit port with SEG16–SEG23, TRB0O/TRB1O, INT0–INT3; enables full 32-segment LCD drive plus timer output routing. |
| P3_0–P3_7 | Programmable I/O port | 8-bit port with SEG24–SEG31, INT0–INT7; extends LCD segment count and provides flexible interrupt mapping. |
| P4_0–P4_7 | Programmable I/O port | 8-bit port with SEG32–SEG39, COMEXP; supports maximum 40-segment LCD (R8C/LA8A), but only SEG32–SEG39 active in LA6A group. |
| P5_0–P5_6 | Programmable I/O port | 7-bit port with COM0–COM3, VL1–VL3; supplies LCD common outputs and voltage reference taps for bias generation. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external push-button or supervisor IC assertion. |
| MODE | Boot mode select | Configures boot source (ROM vs. user flash) at power-on; tied high for normal operation. |
| WKUP0 / WKUP1 | Wake-up inputs | Enable exit from wait/stop modes via external edge; supports low-power sensing applications. |
Key Features
| Feature | Design Value |
|---|---|
| Data Flash Endurance | 10,000 erase/write cycles - enables robust firmware parameter storage and field-updatable calibration data without external EEPROM. |
| Low-Power Modes | Wait (1.7 µA @ 3.0 V/32 kHz), Stop (0.5 µA), Power-off 2 (1.3 µA w/ RTC), Power-off 0 (0.01 µA) - extends battery life in portable appliances. |
| On-Chip Debug | Fully integrated debug interface via single-wire SWD-compatible channel - eliminates need for external JTAG emulator during development. |
| Real-Time Clock (Timer RH) | Calendar mode (sec/min/hr/day/date/month/year) with alarm and periodic interrupt - replaces external RTC IC in timekeeping applications. |
| EMI/EMS Optimization | Designed for high immunity and low emission per IEC 61000-4-x standards - reduces need for board-level filtering in noisy home appliance environments. |
| Temperature Sensor | Integrated analog sensor with −20 to +85°C measurement range - enables self-monitoring of MCU junction temperature for thermal throttling or safety shutdown. |
Applications
| Refrigerator Control Panel | Printer Mainboard |
|---|---|
|
Use Scenario: Real-time display of temperature setpoints, door-open alerts, and defrost cycle status on segmented LCD. IC Role / Device Role / Timing Role: Primary system controller executing UI logic, driving 32-segment LCD directly, and managing thermistor ADC readings. Use Value: Eliminates external LCD driver and RTC, reducing BOM cost and PCB area while maintaining accurate timekeeping and responsive UI updates. |
Use Scenario: Managing paper feed sensors, motor control signals, and status LED indicators in compact inkjet printers. IC Role / Device Role / Timing Role: Central peripheral manager coordinating stepper motor timing (via Timer RC PWM), sensor polling (ADC), and communication (UART0 to host PC). Use Value: Integrates 8-channel ADC, 56 I/Os, and UART in one 64-pin package - simplifies layout and avoids glue logic for sensor/motor interface. |
| Smart Thermostat Interface | Audio Amplifier Front Panel |
|
Use Scenario: Reading ambient temperature/humidity sensors, updating 4-digit LCD display, and handling rotary encoder inputs. IC Role / Device Role / Timing Role: Dedicated UI processor handling touchless input (keypad interrupts), LCD refresh, and local sensor fusion. Use Value: On-chip 10-bit ADC with sample-and-hold and built-in temperature sensor reduce external component count by ≥3 devices. |
Use Scenario: Controlling volume, input selection, and mute functions via push buttons and displaying status on 2-line LCD. IC Role / Device Role / Timing Role: Standalone front-end controller managing button debouncing, LCD segment drive, and I²C communication to main audio DSP. Use Value: 32-segment LCD driver + I²C bus + 56 I/Os enable full UI functionality without external controllers - lowers system latency and firmware complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2LA64ANFP | Same core, memory, and peripherals; differs only in package - 64-pin LQFP with 0.5 mm pitch (PLQP0064KB-A) vs. 0.8 mm (PLQP0064GA-A). | Requires PCB redesign due to finer pitch; better suited for space-constrained designs where trace density justifies tighter layout rules. | Select R5F2LA64ANFP only when board real estate is critical and assembly capability supports 0.5 mm pitch. |
| R5F2LA54ANFP | Lower I/O count (44 pins), reduced LCD drive (27 segments), no P1 port, and 52-pin LQFP package; otherwise identical CPU, memory, and peripheral IP. | Targeted at simpler UIs (e.g., microwave control panel with ≤20 segments) where fewer GPIOs and smaller footprint justify cost reduction. | Choose R5F2LA54ANFP when design requires <44 I/Os and ≤27 LCD segments - saves $0.35/unit and simplifies layout. |
Compared with R5F2LA64ANFA#U0, R5F2LA64ANFP offers identical functionality in a denser package requiring tighter layout tolerances, while R5F2LA54ANFP reduces I/O and LCD capacity to lower cost and footprint for less complex UIs - both retain full software compatibility within the R8C/LAxA family.
Availability
R5F2LA64ANFA#U0 is available at Aetrix Electronics and suitable for refrigerator control panels, smart thermostat interfaces, printer mainboards, and audio amplifier front panels requiring stable component supply over extended production lifecycles.
Supply support for R5F2LA64ANFA#U0 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/LA6A Group, including R5F2LA64ANFA#U0, was designed for cost-sensitive, low-power embedded control applications demanding integrated LCD driving, precise timing, and robust mixed-signal performance in consumer appliances.
FAQ
What is the maximum operating frequency and voltage range for the R5F2LA64ANFA#U0?
The R5F2LA64ANFA#U0 operates at up to 20 MHz when supplied with 2.7–5.5 V, delivering a 50 ns minimum instruction execution time. At lower voltages (1.8–5.5 V), it supports 8 MHz operation with 125 ns minimum instruction time - enabling flexible power/performance trade-offs in battery-powered or wide-input designs.
Does the R5F2LA64ANFA#U0 support UART2 or Timer RJ2 functionality?
No, the R5F2LA64ANFA#U0 belongs to the R8C/LA6A Group, which does not include UART2 or Timer RJ2. These features are exclusive to the higher-tier R8C/LA8A Group. The R5F2LA64ANFA#U0 provides UART0, SSU/I²C, Timer RJ0/RJ1, and Timer RH - confirmed in Tables 1.1 and 1.7 of the official datasheet R01DS0011EJ0101.
How many LCD segments can the R5F2LA64ANFA#U0 drive, and what bias/duty configurations are supported?
The R5F2LA64ANFA#U0 supports up to 32 segment outputs and 4 common outputs, with configurable bias (1/2 or 1/3) and duty (static, 1/2, 1/3, or 1/4). This matches the R8C/LA6A Group specification in Table 1.8 and enables direct drive of multiplexed character or custom LCDs without external bias generators.
Is the R5F2LA64ANFA#U0 pin-compatible with other R8C/LAxA family members like R5F2LA84ANFA?
No, the R5F2LA64ANFA#U0 is not pin-compatible with R5F2LA84ANFA. While both use 64-pin LQFP packages, R5F2LA64ANFA#U0 uses PLQP0064GA-A (0.8 mm pitch), whereas R5F2LA84ANFA uses PLQP0080JA-A (80-pin, 0.65 mm pitch). Pin counts, pitch, and I/O mappings differ across R8C/LA3A–LA8A Groups - verified in Tables 1.9–1.12 and Figure 1.11.
What debug interface does the R5F2LA64ANFA#U0 support, and is external hardware required?
The R5F2LA64ANFA#U0 includes an on-chip debug function accessible via a single-wire interface compatible with Renesas E1/E20 emulators. No external debug IC is needed - the MCU supports full break/step/run control, register inspection, and flash programming through the dedicated debug pin (pin 1 of PLQP0064GA-A package), as documented in Section 2.3 of R01DS0011EJ0101.
R5F2LA64ANFA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/Lx/A6A
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 56
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2LA64ANFA#U0 FAQ
1.How can I place an order for R5F2LA64ANFA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2LA64ANFA#U0 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 R5F2LA64ANFA#U0 reliable?
The price and inventory of R5F2LA64ANFA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2LA64ANFA#U0 is usually 5 days.
3.What payment methods are accepted for R5F2LA64ANFA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2LA64ANFA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2LA64ANFA#U0?
R5F2LA64ANFA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2LA64ANFA#U0 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 R5F2LA64ANFA#U0?
For technical support, including R5F2LA64ANFA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2LA64ANFA#U0 requirements.
6.How does Aetrix verify that R5F2LA64ANFA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F2LA64ANFA#U0 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 R5F2LA64ANFA#U0 meets industry standards.
7.What is the process for return or replacement of R5F2LA64ANFA#U0?
All R5F2LA64ANFA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2LA64ANFA#U0, 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 R5F2LA64ANFA#U0 part is unused and in its original packaging.
Return procedure for R5F2LA64ANFA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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