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Renesas R5F2L36ACDFA#31
- Part No.:
- R5F2L36ACDFA#31
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F2L36ACDFA#31.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,641
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Product details
Overview
R5F2L36ACDFA#31 from Renesas is an 88-pin LQFP MCU in the R8C/L36C Group featuring the R8C CPU core, 96 KB program flash, 10 KB RAM, and integrated LCD controller supporting up to 8 common and 32 segment outputs. It delivers 10-bit A/D conversion across 10 channels, dual 8-bit D/A converters, and hardware LIN bus support via UART0 and Timer RA - optimized for appliance control panels with segmented displays.
For engineers reviewing the R5F2L36ACDFA#31 datasheet, R5F2L36ACDFA#31 pinout, R5F2L36ACDFA#31 application, or R5F2L36ACDFA#31 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade, 64-pin LQFP (0.80 mm pitch) package, background operation (BGO) data flash, and real-time clock (Timer RE) with calendar functionality.
Technical Context
The R5F2L36ACDFA#31 implements the R8C 16-bit CPU core with 89 instructions, 16×16→32-bit multiplier, and 1 Mbyte address space. It supports four clock sources: XIN (up to 20 MHz), XCIN (32 kHz), high-speed on-chip oscillator (adjustable), and low-speed on-chip oscillator - enabling flexible power-mode management including wait, stop, and power-off modes.
Peripheral integration includes Timer RD (16-bit ×2 with 6-pin PWM and complementary three-phase output), UART0/UART1/UART2 (with I²C mode), SSU, DTC (1 channel, 38 activation sources), and voltage detection circuitry with programmable reset thresholds - all coordinated under a single-chip architecture without external timing or memory components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16 multiplier, and 1 Mbyte address space - enables efficient C-code execution and deterministic real-time control. |
| Memory | 96 KB program flash, 1 KB × 4 data flash with BGO, 10 KB RAM - supports field firmware updates without halting application code. |
| ADC | 10-bit resolution × 10 channels with sample-and-hold and sweep mode - captures analog sensor inputs (e.g., thermistors, potentiometers) in single-scan sequences. |
| LCD Driver | Max. 8 COM / 32 SEG outputs, 1/2–1/4 bias, static/1/2–1/8 duty - drives multiplexed character or icon displays in home appliance UIs. |
| Operating Temp | -40°C to +85°C (D version) - qualified for industrial and automotive cabin-adjacent environments without derating. |
| Supply Voltage | 1.8 V to 5.5 V - allows direct interface with 3.3 V logic and compatibility with legacy 5 V systems. |
| Power Modes | Wait (3.5 µA @ 32 kHz), stop (2 µA), power-off (0.02 µA) - extends battery life in standby or remote-control receiver applications. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064GA-A), 0.80 mm pin pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0/SEG0/AN4 | LCD segment / ADC input | Shared function pin usable as LCD segment driver or analog input for user interface sensors. |
| P7_7/COM0 | LCD common output | Drives first common electrode in multiplexed LCD; supports up to 1/8 duty cycle. |
| P11_0/SCL/SSCK/(CLK2/INT0) | I²C clock / serial clock / interrupt | Configurable as I²C master clock, synchronous serial clock, or external interrupt source - reduces pin count via software-selectable function. |
| P13_0/AN0/DA0 | ADC input / DAC output | Dual-role pin enabling analog feedback loop closure (e.g., motor current sensing → DAC-controlled reference). |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced push-button or supervisor IC signal. |
| VCC/AVCC | Digital/analog supply | Single 1.8–5.5 V rail powers both digital logic and analog peripherals - simplifies power design with no separate analog regulator required. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erase/write during program execution - enables seamless firmware patching and parameter logging without system interruption. |
| Hardware LIN Module | Full LIN 2.1/SAE J2602 compliance using UART0 and Timer RA - eliminates software bit-banging and ensures precise timing for automotive body electronics. |
| Real-Time Clock (Timer RE) | Seconds/minutes/hours/days-of-week counting with alarm compare - provides accurate timekeeping for scheduling, display timeouts, and energy-saving wake events. |
| High-Current I/O Ports | 8 pins capable of 20 mA sink/source - directly drive LEDs, relays, or small solenoids without external drivers in appliance control boards. |
| On-Chip Debug Interface | Fully compliant with Renesas E1/E20 debuggers - supports real-time trace, breakpoints, and memory inspection without requiring dedicated debug pins. |
Applications
| Appliance Control Panel | Industrial HMI Display |
|---|---|
Use Scenario: Microcontroller manages button inputs, LED indicators, buzzer feedback, and 4-digit segmented LCD on washing machine front panel. IC Role / Device Role / Timing Role: Central control unit executing state machine logic, scanning keypad matrix, updating LCD segments every 50 ms, and generating audible alerts via PWM-driven buzzer. Use Value: Integrated LCD driver and 10-channel ADC eliminate external display controller and analog front-end ICs - reducing BOM cost and PCB area by ~35%. | Use Scenario: Embedded controller in factory-floor operator terminal with 2-line character LCD, rotary encoder, and status LEDs. IC Role / Device Role / Timing Role: Real-time coordinator handling encoder quadrature decoding, LCD refresh at 60 Hz, and LED blink patterns synchronized to system heartbeat timer. Use Value: Hardware LIN support enables daisy-chain communication with remote I/O modules - replacing RS-485 transceivers and protocol stacks with single-wire topology. |
| Home Audio System UI | Smart Thermostat Interface |
Use Scenario: MCU controls volume knob, source selector, display backlight, and 32-segment bar-graph LED for audio level indication. IC Role / Device Role / Timing Role: Analog sensor processor (ADC for potentiometer), PWM generator (for LED dimming), and segment driver (for bar-graph visualization). Use Value: Dual 8-bit DACs provide precise analog references for audio codec biasing - eliminating external precision voltage sources. | Use Scenario: Battery-powered thermostat managing NTC temperature sensing, LCD display, IR remote reception, and relay control for HVAC actuation. IC Role / Device Role / Timing Role: Low-power system manager entering stop mode between 1-second sensor reads, waking on RTC alarm or IR interrupt, and driving 8-segment LCD with 1/4 bias. Use Value: Sub-µA power-off mode (0.02 µA) extends CR2032 battery life beyond 5 years - validated per IEC 60730 Class B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2L36ACNFA | Same silicon, N-grade (-20°C to +85°C) instead of D-grade; identical pinout and peripherals. | Suitable only for commercial indoor environments without thermal stress or extended temperature cycling. | Select when operating ambient stays above -20°C and cost sensitivity outweighs industrial qualification needs. |
| R5F2L38ACDFA | 16-channel ADC (vs. 10), 48-segment LCD drive, 80-pin LQFP package - higher I/O count and analog capability. | Required for designs needing more sensor inputs (e.g., multi-zone HVAC) or larger segmented displays (e.g., oven control with graphic icons). | Choose when additional ADC channels or LCD segments justify larger footprint and higher unit cost. |
Compared with R5F2L36ACDFA#31, the R5F2L36ACNFA offers identical functionality at lower temperature rating, while the R5F2L38ACDFA expands analog and display capacity at the expense of package size - making R5F2L36ACDFA#31 the optimal balance for cost-constrained, thermally robust appliance UIs.
Availability
R5F2L36ACDFA#31 is available at Aetrix Electronics and suitable for appliance control panels, industrial HMIs, home audio interfaces, and smart thermostat designs requiring stable component supply across long production lifecycles.
Supply support for R5F2L36ACDFA#31 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/L36C Group targets cost-sensitive, display-intensive embedded systems - delivering integrated LCD control, robust analog interfaces, and industrial-grade reliability in compact LQFP packages.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F2L36ACDFA#31?
The R5F2L36ACDFA#31 operates at up to 20 MHz when supplied with 2.7–5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8 V. This dual-voltage capability allows interoperability with both 3.3 V and legacy 5 V system rails while maintaining full peripheral functionality across the entire range.
Does the R5F2L36ACDFA#31 support in-circuit debugging and flash programming?
Yes, the R5F2L36ACDFA#31 includes a full on-chip debug interface compatible with Renesas E1 and E20 emulators. It supports non-intrusive breakpoints, real-time variable monitoring, and in-system flash programming - enabling development and field firmware updates without removing the device from the PCB.
How many LCD segments and commons does the R5F2L36ACDFA#31 support, and what bias/duty options are available?
The R5F2L36ACDFA#31 supports up to 8 common outputs and 32 segment outputs, with selectable bias (1/2, 1/3, 1/4) and duty (static, 1/2, 1/3, 1/4, 1/8). These settings are configured via LCD control registers and enable direct drive of alphanumeric or custom icon displays without external bias generators.
What peripheral resources are dedicated to LIN bus communication on the R5F2L36ACDFA#31?
The R5F2L36ACDFA#31 implements hardware LIN 2.1 using UART0 for serial framing and Timer RA for precise baud rate generation and sync-break detection. This offloads timing-critical LIN protocol handling from firmware - ensuring compliance with SAE J2602 timing tolerances without CPU overhead.
Is the R5F2L36ACDFA#31 pin-compatible with other devices in the R8C/L3x series?
No - the R5F2L36ACDFA#31 uses a 64-pin LQFP (PLQP0064GA-A) package unique to the R8C/L36C Group. While it shares the same pin numbering convention and functional grouping with R8C/L35C (52-pin) and R8C/L38C (80-pin) variants, physical pin count and layout differ; migration requires PCB redesign.
R5F2L36ACDFA#31 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/Lx/36C
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- 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:
- 52
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 10x10b; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2L36ACDFA#31 FAQ
1.How can I place an order for R5F2L36ACDFA#31 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2L36ACDFA#31 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 R5F2L36ACDFA#31 reliable?
The price and inventory of R5F2L36ACDFA#31 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2L36ACDFA#31 is usually 5 days.
3.What payment methods are accepted for R5F2L36ACDFA#31?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2L36ACDFA#31 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2L36ACDFA#31?
R5F2L36ACDFA#31 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2L36ACDFA#31 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 R5F2L36ACDFA#31?
For technical support, including R5F2L36ACDFA#31 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2L36ACDFA#31 requirements.
6.How does Aetrix verify that R5F2L36ACDFA#31 is sourced from the original manufacturer or authorized distributors?
All R5F2L36ACDFA#31 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 R5F2L36ACDFA#31 meets industry standards.
7.What is the process for return or replacement of R5F2L36ACDFA#31?
All R5F2L36ACDFA#31 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2L36ACDFA#31, 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 R5F2L36ACDFA#31 part is unused and in its original packaging.
Return procedure for R5F2L36ACDFA#31:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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