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Renesas R5F2L368CDFP#31
- Part No.:
- R5F2L368CDFP#31
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F2L368CDFP#31.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,985
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Product details
Overview
R5F2L368CDFP#31 from Renesas is a 16-bit R8C/L36C Group microcontroller featuring the R8C CPU core, 64 KB flash program memory, 1 KB × 4 data flash with background operation (BGO), and 8 KB RAM. It operates at up to 20 MHz (VCC = 2.7–5.5 V), integrates 52 programmable CMOS I/O ports (including 8 high-current drive pins), and supports LCD drive (up to 8 common/32 segment outputs) for embedded appliance control.
For engineers reviewing the R5F2L368CDFP#31 datasheet, R5F2L368CDFP#31 pinout, R5F2L368CDFP#31 application, or R5F2L368CDFP#31 equivalent, key selection criteria include its D-version industrial temperature range (−40°C to +85°C), integrated LIN module (using Timer RA and UART0), 10-bit × 10-channel A/D converter with sweep mode, and LQFP-64 package with 0.50 mm pitch.
Technical Context
The R5F2L368CDFP#31 implements the R8C CPU core with 89 fundamental instructions and hardware multiplier (16 × 16 → 32 bits), enabling efficient real-time signal processing in resource-constrained systems. Its clock system includes four independent sources: XIN oscillator (up to 20 MHz), XCIN 32 kHz crystal circuit, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - all selectable via software-controlled frequency divider (1/2/4/8/16).
Peripheral integration centers on mixed-signal timing and interface functions: Timer RD provides three-phase complementary PWM (6-pin output), Timer RC delivers 3-pin PWM, UART0/1/2 support LIN and I²C-bus modes, and the DTC enables autonomous data transfers triggered by 38 sources including ADC completion and serial receive events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 16×16→32-bit hardware multiplier, 1 Mbyte address space |
| Memory | 64 KB flash ROM, 1 KB × 4 data flash with BGO, 8 KB RAM |
| Operating Range | −40°C to +85°C (D version), VCC = 1.8–5.5 V |
| Max Clock Speed | 20 MHz (at VCC ≥ 2.7 V); 5 MHz (at VCC ≥ 1.8 V) |
| I/O Ports | 52 programmable CMOS I/O pins, 8 high-current drive outputs (20 mA sink/source) |
| A/D Converter | 10-bit resolution × 10 channels with sample-and-hold and hardware sweep mode |
| LCD Driver | Supports up to 8 common and 32 segment outputs; bias options: 1/2, 1/3, 1/4; duty: static, 1/2–1/8 |
Pinout & Package
Package: PLQP0064KB-A - 64-pin LQFP, 10 × 10 mm body, 0.50 mm pin pitch, exposed pad (thermal pad not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0 to P0_7 | Programmable I/O / SEG0–SEG7 / AN4–AN9 | Shared LCD segment outputs and analog inputs; configurable as general-purpose I/O with pull-up |
| P11_0 to P11_7 | SCL/SSCK/INT0–INT7 / SDA/SSO/SSI / IVREF1–IVREF3 / IVCMP1–IVCMP3 | Multiplexed I²C, serial interface, interrupt, and analog reference/comparator inputs |
| P13_0 / P13_1 | AN0/DA0 / AN1/DA1/TXD0 | Dual-function pins supporting 8-bit D/A conversion and UART0 transmit/receive |
| P7_0 to P7_7 | SEG52–SEG55 / COM0–COM7 | LCD common/segment outputs; P7_0–P7_3 serve as COM4–COM7; P7_4–P7_7 as COM0–COM3 |
| XIN / XOUT | Crystal oscillator input/output | Supports external crystal (1–20 MHz) or ceramic resonator; internal feedback resistor enabled |
| XCIN / XCOUT | 32.768 kHz sub-clock input/output | Drives real-time clock (Timer RE) and low-power wait/stop modes independently of main clock |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent flash programming/erasure while executing application code - critical for firmware updates without halting system operation |
| Hardware LIN Module | Full LIN 2.0/2.1 protocol support using dedicated UART0 and Timer RA; eliminates software bit-banging overhead and ensures timing compliance |
| Low-Power Modes | Wait mode (3.5 µA @ 3.0 V, fXCIN = 32 kHz), stop mode (2 µA), power-off mode (0.02 µA) - extends battery life in portable appliances |
| On-Chip Debug Interface | Fully integrated debug circuit supporting breakpoints, watchpoints, and memory access via single-wire SWD-like interface - no external emulator required |
| Voltage Detection Circuit | Configurable reset and interrupt generation at two user-selectable thresholds - prevents erratic behavior during brown-out conditions |
Applications
| Refrigerator Control Unit | Multi-Function Printer Engine |
|---|---|
Use Scenario: Real-time monitoring of compressor temperature, door status, and defrost cycle timing in residential refrigerators. IC Role / Device Role / Timing Role: Primary system controller managing sensor acquisition (10-channel A/D), relay actuation via high-current I/O, and segmented LCD display (32 segments) for status feedback. Use Value: Integrated LCD driver and BGO enable seamless UI updates during firmware patching; −40°C rating ensures reliability in cold ambient environments. | Use Scenario: Coordinating paper feed motors, toner sensors, and duplex path logic in mid-volume office printers. IC Role / Device Role / Timing Role: Central timing and interface hub - generating precise PWM for motor control (Timer RD), handling LIN communication with scanner module, and managing I²C-based sensor reads. Use Value: Hardware LIN reduces CPU load by >40% vs. software implementation; 52 I/O pins consolidate discrete logic, cutting BOM count. |
| Home Audio Amplifier UI | Industrial HVAC Thermostat |
Use Scenario: Driving 4-digit 7-segment display and rotary encoder interface in compact stereo receivers. IC Role / Device Role / Timing Role: Dedicated UI processor handling key scan (8-key input interrupts), display multiplexing (8-common LCD), and volume DAC output (DA0/DA1). Use Value: On-chip 8-bit D/A converters eliminate external DAC ICs; key input interrupt capability enables responsive button response <10 ms. | Use Scenario: Regulating zone dampers and fan speed based on multi-sensor inputs (temperature, humidity, CO₂) in commercial HVAC systems. IC Role / Device Role / Timing Role: Sensor fusion node acquiring analog signals (10-channel A/D), executing PID loops, and communicating via LIN bus to central controller. Use Value: −40°C to +85°C rating guarantees operation in unconditioned mechanical rooms; data flash stores calibration coefficients with 10,000-cycle endurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2L368CNFP | N-version (-20°C to +85°C); identical memory, peripherals, and pinout | Suitable for consumer-grade indoor applications without extended thermal requirements | Select when operating ambient stays above −20°C and cost sensitivity outweighs industrial qualification needs |
| R5F2L388CDFP | L38C Group: adds 6 extra A/D channels (16 total), 12 more I/O pins (68 total), and 8-segment LCD expansion | Required for designs needing higher analog channel count or larger display (48 segments) | Choose only if additional A/D or I/O resources are essential - increases PCB area and cost without benefit for L36C-targeted designs |
Compared with R5F2L368CNFP, the R5F2L368CDFP#31 offers guaranteed operation down to −40°C and same-pinout compatibility, making it the direct industrial upgrade; versus R5F2L388CDFP, it provides optimal resource alignment for mid-tier appliance UIs without over-provisioning I/O or A/D capacity.
Availability
R5F2L368CDFP#31 is available at Aetrix Electronics and suitable for refrigerator control units, multi-function printer engines, home audio amplifier UIs, and industrial HVAC thermostats requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F2L368CDFP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8C/L36C Group is designed for cost-sensitive, low-power embedded applications demanding integrated LCD driving, LIN communication, and robust analog sensing - particularly in white goods and office equipment.
FAQ
What is the maximum operating frequency of the R5F2L368CDFP#31 and under what voltage conditions?
The R5F2L368CDFP#31 achieves a maximum operating frequency of 20 MHz when supplied with VCC between 2.7 V and 5.5 V. At lower supply voltages (1.8 V to 5.5 V), the maximum frequency is reduced to 5 MHz to ensure stable operation. This dual-frequency capability allows flexible power/performance trade-offs in battery-powered or wide-input-range designs, and the R5F2L368CDFP#31's internal frequency divider supports clock scaling without external components.
Does the R5F2L368CDFP#31 support in-system programming and field firmware updates?
Yes, the R5F2L368CDFP#31 supports full in-system programming via its on-chip debug interface and includes background operation (BGO) functionality for data flash. This allows application code to execute while reprogramming the 1 KB × 4 data flash blocks - enabling safe, atomic firmware updates without system reset or interruption. The R5F2L368CDFP#31 also features ROM code protection and ID code check to secure intellectual property during field deployment.
How many analog input channels does the R5F2L368CDFP#31 provide, and what resolution do they offer?
The R5F2L368CDFP#31 integrates a 10-bit successive-approximation A/D converter with 10 dedicated analog input channels (AN0–AN9), all supported by sample-and-hold circuitry and hardware-triggered sweep mode. This configuration enables rapid, synchronized sampling across multiple sensors - essential for motor current monitoring or multi-zone temperature control. The R5F2L368CDFP#31's A/D module operates independently of CPU execution, reducing jitter and improving measurement consistency.
What LCD display capabilities does the R5F2L368CDFP#31 support, and how are they implemented?
The R5F2L368CDFP#31 supports static and multiplexed LCD displays with up to 8 common outputs and 32 segment outputs, configurable for 1/2, 1/3, or 1/4 bias and static, 1/2–1/8 duty cycles. It integrates dedicated VL1–VL4 voltage supply pins and CL1/CL2 clock inputs, eliminating external bias generators. The R5F2L368CDFP#31's LCD controller operates autonomously using internal timing, freeing the CPU for other tasks while maintaining flicker-free display updates.
Is the R5F2L368CDFP#31 pin-compatible with other members of the R8C/L3x series?
The R5F2L368CDFP#31 uses the PLQP0064KB-A package (64-pin LQFP) and shares identical pin assignments with all other R8C/L36C Group devices, including R5F2L367CDFP and R5F2L36ACDFP. However, it is not pin-compatible with R8C/L35C (52-pin), L38C (80-pin), or L3AC (100-pin) Group variants due to differing package sizes and I/O counts. The R5F2L368CDFP#31's pinout is fully documented in Figure 1.10 of the R01DS0095EJ0101 datasheet.
R5F2L368CDFP#31 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- R8C/Lx/36C
- Packaging:
- Tray
- 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:
- 52
- 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 10x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2L368CDFP#31 FAQ
1.How can I place an order for R5F2L368CDFP#31 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2L368CDFP#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 R5F2L368CDFP#31 reliable?
The price and inventory of R5F2L368CDFP#31 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2L368CDFP#31 is usually 5 days.
3.What payment methods are accepted for R5F2L368CDFP#31?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2L368CDFP#31 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2L368CDFP#31?
R5F2L368CDFP#31 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2L368CDFP#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 R5F2L368CDFP#31?
For technical support, including R5F2L368CDFP#31 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2L368CDFP#31 requirements.
6.How does Aetrix verify that R5F2L368CDFP#31 is sourced from the original manufacturer or authorized distributors?
All R5F2L368CDFP#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 R5F2L368CDFP#31 meets industry standards.
7.What is the process for return or replacement of R5F2L368CDFP#31?
All R5F2L368CDFP#31 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2L368CDFP#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 R5F2L368CDFP#31 part is unused and in its original packaging.
Return procedure for R5F2L368CDFP#31:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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