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Renesas R5F2L388ANFA#U1
- Part No.:
- R5F2L388ANFA#U1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F2L388ANFA#U1.pdf
- Description:
- 16-BIT, FLASH, R8C CPU
- Quantity:
- Payment:
- Shipping:
Inventory:1,160
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Product details
Overview
R5F2L388ANFA#U1 from Renesas Electronics is a 16-bit R8C/L38A Group microcontroller featuring the R8C CPU core, 64 KB program ROM, 1 KB × 4 data flash with background operation (BGO), 8 KB RAM, and integrated LCD controller supporting up to 48 segment outputs. It operates at up to 20 MHz (VCC = 2.7–5.5 V) and targets embedded control in appliances with display interfaces.
For engineers reviewing the R5F2L388ANFA#U1 datasheet, R5F2L388ANFA#U1 pinout, R5F2L388ANFA#U1 application, or R5F2L388ANFA#U1 equivalent, key selection criteria include its 68-pin LQFP package, 16-channel 10-bit ADC, dual UART + I²C + LIN support, real-time clock (Timer RE), and -20°C to +85°C industrial temperature grade (N version).
Technical Context
The R5F2L388ANFA#U1 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware 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/sawtooth modulation), Timer RC (16-bit, 3-pin PWM), UART0/UART1/UART2 (with I²C and LIN modes), 10-bit ADC (16 channels), two 8-bit D/A converters, and an integrated LCD driver with VL1–VL4 bias supply and static/1/2/1/3/1/4 duty support.
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 fusion algorithms. |
| Memory | 64 KB flash program ROM + 1 KB × 4 data flash (10,000 erase/write cycles) with BGO - allows firmware updates without halting application execution. |
| RAM | 8 KB on-chip RAM - sufficient for real-time task stacks, LCD frame buffers, and communication protocol buffers in appliance HMI systems. |
| Operating Frequency | Up to 20 MHz (VCC = 2.7–5.5 V); min. instruction time 50 ns - delivers deterministic timing for UI refresh, sensor sampling, and motor commutation. |
| ADC | 10-bit resolution × 16 channels with sample-and-hold and sweep mode - supports simultaneous monitoring of multiple analog sensors (e.g., temperature, voltage, current). |
| LCD Driver | Max. 8 common × 48 segment outputs, 1/2/1/3/1/4 bias, static/1/2/1/3/1/4 duty - drives alphanumeric or segmented displays in microwave ovens, washing machines, and HVAC panels. |
| Supply Current | Typ. 7 mA @ 5 V/20 MHz; 3.5 µA in wait mode (32 kHz XCIN); 1 µA in power-off mode with Timer RE active - extends battery life in standby-capable appliances. |
Pinout & Package
Package: 80-pin LQFP (PLQP0080JA-A), 12 × 12 mm, 0.5 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Programmable CMOS I/O | 8-bit port with selectable pull-up; shared with SEG0–SEG7 for LCD segment drive or general-purpose digital I/O. |
| P20–P23 | Programmable CMOS I/O | 4-bit port; shared with SEG20–SEG23 - used for extended LCD segments or GPIO in compact HMI designs. |
| P30–P37 | Programmable CMOS I/O | 8-bit port; shared with SEG24–SEG31 - supports larger LCDs or multiplexed keypad scanning. |
| P40–P47 | Programmable CMOS I/O | 8-bit port; shared with SEG32–SEG39 - enables full 48-segment LCD drive when combined with P0–P3 and P6–P7. |
| P60–P67 | Programmable CMOS I/O | 8-bit port; shared with SEG44–SEG51 and COM0–COM7 - provides common outputs and high-drive capability for LCD backplane switching. |
| P70–P73 | Programmable CMOS I/O | 4-bit port; shared with COM0–COM3 - completes 8-common LCD support; also usable as interrupt-capable GPIO. |
| VL1–VL4 | LCD bias supply pins | Dedicated voltage outputs for LCD contrast control; enable stable 1/2, 1/3, or 1/4 bias generation without external components. |
| XIN/XOUT | External crystal oscillator input/output | Supports 1–20 MHz crystals; enables precise timing for RTC, UART baud rates, and system clock synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash programming/erasure proceeds concurrently with CPU code execution - eliminates UI freeze during firmware updates. |
| Integrated LCD Controller | Hardware-driven 8×48 segment mapping with built-in voltage multiplier and regulator - reduces BOM cost and PCB area vs. external LCD drivers. |
| Hardware LIN Module | Dedicated LIN 2.0/2.1 transceiver interface using UART0 and Timer RA - simplifies communication with automotive-grade sensors or actuators. |
| Dual 8-bit D/A Converters | Independent voltage outputs for analog control signals (e.g., fan speed reference, heater setpoint) without external DACs. |
| Real-Time Clock (Timer RE) | Low-power 8-bit timer with calendar mode (seconds/minutes/hours/days) - maintains timekeeping in stop/power-off modes with ≤1 µA consumption. |
Applications
| Microwave Oven Control Panel | Washing Machine HMI |
|---|---|
|
Use Scenario: Real-time cooking cycle management with 4-digit LED/LCD display, keypad input, and relay/motor control. IC Role / Device Role / Timing Role: Main system MCU handling UI rendering, sensor reading (temperature, door switch), and PWM-driven fan/motor control. Use Value: Integrated 48-segment LCD driver eliminates external driver IC; BGO enables silent OTA updates; 16-channel ADC monitors thermistor, water level, and motor current. |
Use Scenario: Front-loading washer with multi-stage wash/rinse/spin cycles, water heating, and detergent dispensing. IC Role / Device Role / Timing Role: Central controller managing motor phase sequencing (via Timer RD complementary PWM), heater control, and LCD status display. Use Value: 68 programmable I/O pins support direct connection to 8×8 keypad, 8-segment display, and 6 motor phase drivers; low-power stop mode extends standby battery life. |
| Refrigerator Temperature Display | Office Equipment Keypad Interface |
|
Use Scenario: Dual-zone fridge with independent temperature sensing, compressor control, and segmented LCD showing setpoints and alarms. IC Role / Device Role / Timing Role: Dedicated display and sensor hub interfacing with main system MCU via UART or I²C. Use Value: On-chip 10-bit ADC reads 4 NTC thermistors simultaneously; VL1–VL4 pins generate precise LCD bias voltages across wide temperature range (-20°C to +85°C). |
Use Scenario: Copier/scanner control panel with 12-key membrane keypad, 2-line character LCD, and status LEDs. IC Role / Device Role / Timing Role: Keypad scan and display driver co-processor offloading UI tasks from host MCU. Use Value: Key input interrupt (8 pins) detects press/release with debouncing in hardware; 88 I/O capability (R8C/L3AA group) not applicable - this part uses 68 I/O, sufficient for 12-key + 16-segment display + 4 LEDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2L38AANFA#U1 | 96 KB program ROM, same 64 KB data flash, 10 KB RAM - +32 KB ROM, +2 KB RAM vs. R5F2L388ANFA#U1. | Required for larger firmware images (e.g., multi-language UI, advanced encryption, extended diagnostics). | Select when application code size exceeds 64 KB or additional RAM is needed for complex state machines or communication stacks. |
| R5F2L368ANFA#U1 | 64 KB ROM, 6 KB RAM, 52-pin LQFP, 10-channel ADC, max. 32-segment LCD - fewer I/O (52 vs. 68), smaller package, reduced LCD capacity. | Suitable for simpler HMI with smaller displays (e.g., coffee maker, toaster oven) where board space is constrained. | Choose for cost-sensitive, space-constrained designs with ≤32-segment LCD and <6 KB RAM requirement. |
Compared with R5F2L388ANFA#U1, R5F2L38AANFA#U1 offers greater memory headroom for feature-rich firmware, while R5F2L368ANFA#U1 trades I/O count and LCD capability for smaller footprint and lower unit cost - enabling tiered product variants within the same platform.
Availability
R5F2L388ANFA#U1 is available at Aetrix Electronics and suitable for household appliance control, office equipment HMI, and consumer audio device interfaces requiring stable component supply and long-term industrial temperature support.
Supply support for R5F2L388ANFA#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 industrial, automotive, and consumer markets.
The R8C/L38A Group, including R5F2L388ANFA#U1, was designed for cost-effective, low-power embedded control in appliances with integrated LCD displays and sensor-rich user interfaces.
FAQ
What is the maximum operating frequency and supply voltage range for R5F2L388ANFA#U1?
R5F2L388ANFA#U1 operates at up to 20 MHz with a supply voltage range of 2.7 V to 5.5 V. At lower frequencies (e.g., 5 MHz), it supports down to 1.8 V, enabling flexible power design. The minimum instruction execution time is 50 ns under 20 MHz/5.0 V conditions, ensuring deterministic real-time response in appliance control loops.
Does R5F2L388ANFA#U1 support in-system programming and debug interfaces?
Yes, R5F2L388ANFA#U1 includes on-chip debug capability and supports on-board flash rewrite via dedicated debug pins. It features ROM code protection and ID code check for firmware security. The background operation (BGO) function allows data flash reprogramming while the CPU continues executing application code - critical for field-upgradable appliance firmware.
What LCD configurations does R5F2L388ANFA#U1 support, and how are bias voltages generated?
R5F2L388ANFA#U1 supports up to 8 common and 48 segment outputs with selectable 1/2, 1/3, or 1/4 bias and static/1/2/1/3/1/4 duty. Bias voltages are generated internally via dedicated VL1–VL4 pins, eliminating need for external resistive dividers or charge pumps - simplifying design and improving contrast stability across temperature.
How many analog input channels does the ADC in R5F2L388ANFA#U1 provide, and what resolution does it offer?
R5F2L388ANFA#U1 integrates a 10-bit successive approximation ADC with 16 analog input channels, including sample-and-hold and hardware sweep mode. This enables simultaneous sampling of multiple sensors (e.g., temperature, voltage, current) without external multiplexers - ideal for multi-sensor appliance monitoring systems.
Is R5F2L388ANFA#U1 qualified for industrial temperature operation, and what is its grade?
Yes, R5F2L388ANFA#U1 is rated for -20°C to +85°C ambient operation (N version) and classified as "Standard" quality grade per Renesas documentation. It is approved for use in household appliances, office equipment, audio devices, and industrial robots - meeting reliability requirements for non-safety-critical embedded control.
R5F2L388ANFA#U1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- R8C/Lx/38A
- 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:
- 68
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 16x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2L388ANFA#U1 FAQ
1.How can I place an order for R5F2L388ANFA#U1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2L388ANFA#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 R5F2L388ANFA#U1 reliable?
The price and inventory of R5F2L388ANFA#U1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2L388ANFA#U1 is usually 5 days.
3.What payment methods are accepted for R5F2L388ANFA#U1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2L388ANFA#U1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2L388ANFA#U1?
R5F2L388ANFA#U1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2L388ANFA#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 R5F2L388ANFA#U1?
For technical support, including R5F2L388ANFA#U1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2L388ANFA#U1 requirements.
6.How does Aetrix verify that R5F2L388ANFA#U1 is sourced from the original manufacturer or authorized distributors?
All R5F2L388ANFA#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 R5F2L388ANFA#U1 meets industry standards.
7.What is the process for return or replacement of R5F2L388ANFA#U1?
All R5F2L388ANFA#U1 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2L388ANFA#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 R5F2L388ANFA#U1 part is unused and in its original packaging.
Return procedure for R5F2L388ANFA#U1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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