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Renesas R5F2L38CADFP#U1
- Part No.:
- R5F2L38CADFP#U1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F2L38CADFP#U1.pdf
- Description:
- 16-BIT, FLASH, R8C CPU
- Quantity:
- Payment:
- Shipping:
Inventory:2,890
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Product details
Overview
R5F2L38CADFP#U1 from Renesas Electronics is an 8-bit R8C/L38A Group microcontroller featuring the R8C CPU core, 128 KB program flash, 1 KB × 4 data flash with background operation (BGO), 10 KB RAM, and integrated LCD controller supporting up to 8 common and 48 segment outputs. It operates at up to 20 MHz (VCC = 2.7–5.5 V) and targets embedded control in consumer appliances with integrated display interfaces.
For engineers reviewing the R5F2L38CADFP#U1 datasheet, R5F2L38CADFP#U1 pinout, R5F2L38CADFP#U1 application, or R5F2L38CADFP#U1 equivalent, key selection criteria include its 68-pin LQFP package, -40°C to +85°C industrial temperature grade (D version), 10-bit 16-channel ADC, hardware LIN support via UART0/timer RA, and low-power stop mode consuming 1 µA with timer RE enabled.
Technical Context
The R5F2L38CADFP#U1 implements the R8C CPU core with 89 fundamental instructions, 16×16-bit multiplier, and 1 Mbyte address space. It integrates four clock sources: XIN oscillator (up to 20 MHz), 32 kHz XCIN, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - enabling flexible power/performance trade-offs across wait, stop, and power-off modes.
Peripheral integration includes Timer RD (16-bit × 2, 6-pin PWM, complementary three-phase output), UART0/UART1/UART2 (with I²C mode), SSU, LIN module, 10-bit 16-channel ADC with sweep mode, dual 8-bit DACs, two comparator units, and a dedicated LCD drive circuit with integrated voltage multiplier and regulator for static/1/2/1/3/1/4 duty bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C core with 89 instructions, 50 ns min instruction time at 20 MHz, 16×16→32-bit multiplier |
| Memory | 128 KB program flash, 1 KB × 4 data flash with BGO, 10 KB RAM |
| Operating Voltage | 1.8–5.5 V; supports 5 MHz @ 1.8 V or 20 MHz @ 2.7–5.5 V |
| ADC | 10-bit resolution × 16 channels, sample-and-hold, sweep mode enabled |
| Power Consumption | Typ. 7 mA @ 5 V/20 MHz; 1 µA @ 3 V in stop mode with timer RE active |
| LCD Driver | Supports max 8 COM / 48 SEG pins; integrated voltage multiplier & regulator; 1/2, 1/3, 1/4 bias |
| Temperature Grade | D version: -40°C to +85°C ambient operating range |
| Package | 80-pin LQFP (PLQP0080KB-A), lead-free, RoHS compliant |
Pinout & Package
Package: 80-pin LQFP (PLQP0080KB-A), 12 mm × 12 mm, 0.5 mm pitch, exposed pad for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Primary 1.8–5.5 V supply rails; multiple VSS pins ensure low-noise grounding for analog/digital domains |
| XIN, XOUT | External crystal oscillator input/output | Supports 1–20 MHz crystals; enables precise timing for real-time applications and communication baud rates |
| XCIN, XCOU | 32.768 kHz watch crystal interface | Drives timer RE for accurate real-time clock operation independent of main system clock |
| P00–P07 | Programmable I/O port (8-bit) | Configurable as LCD segment drivers (SEG0–SEG7), general-purpose I/O, or interrupt inputs |
| P70–P73 | Programmable I/O port (4-bit) | Supports LCD common outputs (COM0–COM3); also usable as wake-up inputs (WKUP1) |
| AD0–AD15 | Analog input channels | 16 dedicated ADC input pins mapped to P0–P7; share physical pins with digital I/O and LCD functions |
| TXD0/RXD0 | UART0 serial interface | Full-duplex asynchronous communication; used with timer RA for hardware LIN bus implementation |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent program/data flash erase/write while executing code from other memory regions |
| Hardware LIN Module | Offloads LIN protocol handling using UART0 and timer RA - eliminates software bit-banging overhead |
| Low-Power Stop Mode | 1 µA current draw with real-time clock (timer RE) running - ideal for battery-backed display systems |
| Integrated LCD Voltage Multiplier | Generates required LCD bias voltages internally; eliminates external charge-pump IC and reduces BOM count |
| 16-Bit Complementary PWM | Timer RD supports synchronous three-phase PWM with dead-time insertion - suitable for BLDC motor control |
| On-Chip Debug Interface | Enables full-featured debugging and flash reprogramming without external emulator hardware |
Applications
| Home Appliance Control Panel | Industrial HMI Display Terminal |
|---|---|
|
Use Scenario: Microwave oven or washing machine front panel with segmented LCD display, keypad, and sensor monitoring. IC Role / Device Role / Timing Role: Main system controller managing user input, display refresh, motor sequencing, and safety interlocks. Use Value: Integrated LCD driver with 48 segments and 8 commons eliminates external display controller; BGO allows firmware updates without interrupting appliance operation. |
Use Scenario: Factory-floor operator interface with alphanumeric LCD, pushbuttons, and analog sensor readouts. IC Role / Device Role / Timing Role: Embedded HMI processor handling real-time display updates, local I/O scanning, and serial communication to PLC. Use Value: -40°C to +85°C D-grade operation ensures reliability in unconditioned industrial environments; 16-channel ADC directly digitizes temperature, pressure, and current sensors. |
| Smart Thermostat Interface | Portable Medical Device Display |
|
Use Scenario: Battery-powered HVAC controller with backlit LCD, ambient temperature/humidity sensing, and wireless module interfacing. IC Role / Device Role / Timing Role: Power-aware system manager coordinating sensor acquisition, display update, and low-power sleep cycles. Use Value: 1 µA stop-mode current with active timer RE enables multi-year battery life; integrated voltage multiplier powers LCD without external DC-DC converter. |
Use Scenario: Handheld diagnostic tool with monochrome LCD, tactile buttons, and analog front-end for biopotential signal conditioning. IC Role / Device Role / Timing Role: Signal acquisition and display controller performing synchronized ADC sampling and waveform rendering. Use Value: 10-bit 16-channel ADC with sample-and-hold and sweep mode captures multi-sensor data in single trigger; dual 8-bit DACs support calibration reference generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2L38AADFP#U1 | 96 KB program flash, same 1 KB × 4 data flash, identical peripherals and package | Suitable where firmware size < 96 KB; lower cost for reduced memory footprint | Select when application code fits within 96 KB and BGO-enabled field updates remain critical |
| R5F2L38BDFP#U1 | No data flash; 128 KB program flash only; otherwise identical peripheral set and pinout | Applicable where background flash updates are unnecessary and cost sensitivity is higher | Choose when firmware updates occur only during manufacturing or service, not in-field |
Compared with R5F2L38AADFP#U1, the R5F2L38CADFP#U1 provides 32 KB more program flash for complex feature sets; versus R5F2L38BDFP#U1, it adds BGO-capable data flash for runtime parameter storage and safe over-the-air updates - critical for consumer devices requiring field configurability.
Availability
R5F2L38CADFP#U1 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI terminals, and smart thermostat interfaces requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for R5F2L38CADFP#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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.
The R8C/L38A Group, including R5F2L38CADFP#U1, was designed for cost-sensitive, display-integrated embedded systems in consumer and industrial markets - emphasizing low power, integrated LCD driving, and robust real-time control.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F2L38CADFP#U1?
The R5F2L38CADFP#U1 supports a maximum operating frequency of 20 MHz at supply voltages from 2.7 V to 5.5 V. At lower voltages down to 1.8 V, the maximum frequency is reduced to 5 MHz. This dual-voltage/frequency capability allows flexible power optimization across battery-powered and line-powered applications while maintaining full peripheral functionality.
Does the R5F2L38CADFP#U1 include on-chip debug capability?
Yes, the R5F2L38CADFP#U1 includes full on-chip debug support, enabling breakpoints, single-stepping, register inspection, and flash memory programming via the on-chip debug interface. This eliminates the need for external emulators and simplifies development and field firmware updates for the R5F2L38CADFP#U1.
What LCD display configurations does the R5F2L38CADFP#U1 support?
The R5F2L38CADFP#U1 supports up to 8 common and 48 segment outputs with selectable bias (1/2, 1/3, 1/4) and duty (static, 1/2, 1/3, 1/4, 1/8). Its integrated voltage multiplier and regulator generate required LCD driving voltages internally, removing the need for external charge-pump ICs in designs using the R5F2L38CADFP#U1.
Is the R5F2L38CADFP#U1 pin-compatible with other R8C/L3x Group MCUs?
The R5F2L38CADFP#U1 uses an 80-pin LQFP package (PLQP0080KB-A) and is pin-compatible with other R8C/L38A and R8C/L38B Group members in the same package variant. However, it is not pin-compatible with R8C/L35A, R8C/L36A, or R8C/L3AA Group devices due to differing pin counts and peripheral mappings.
What is the data flash endurance specification for the R5F2L38CADFP#U1?
The R5F2L38CADFP#U1 data flash is rated for 10,000 write/erase cycles - significantly higher than the 1,000-cycle endurance of standard program flash. This makes the R5F2L38CADFP#U1 suitable for applications requiring frequent runtime parameter storage, such as calibration data, usage counters, or user preferences.
R5F2L38CADFP#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:
- 128KB (128K 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 16x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F2L38CADFP#U1 FAQ
1.How can I place an order for R5F2L38CADFP#U1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2L38CADFP#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 R5F2L38CADFP#U1 reliable?
The price and inventory of R5F2L38CADFP#U1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2L38CADFP#U1 is usually 5 days.
3.What payment methods are accepted for R5F2L38CADFP#U1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2L38CADFP#U1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2L38CADFP#U1?
R5F2L38CADFP#U1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2L38CADFP#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 R5F2L38CADFP#U1?
For technical support, including R5F2L38CADFP#U1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2L38CADFP#U1 requirements.
6.How does Aetrix verify that R5F2L38CADFP#U1 is sourced from the original manufacturer or authorized distributors?
All R5F2L38CADFP#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 R5F2L38CADFP#U1 meets industry standards.
7.What is the process for return or replacement of R5F2L38CADFP#U1?
All R5F2L38CADFP#U1 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2L38CADFP#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 R5F2L38CADFP#U1 part is unused and in its original packaging.
Return procedure for R5F2L38CADFP#U1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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