My Inquiry
My Account
Renesas R5F2L387CNFP#31
- Part No.:
- R5F2L387CNFP#31
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F2L387CNFP#31.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,690
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F2L387CNFP#31 from Renesas Electronics is a 16-bit R8C/L38C Group single-chip microcontroller featuring the R8C CPU core, 48 KB program flash, 1 KB × 4 data flash with background operation (BGO), 6 KB RAM, and integrated LCD drive control 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 appliance front panels with segmented displays.
For engineers reviewing the R5F2L387CNFP#31 datasheet, R5F2L387CNFP#31 pinout, R5F2L387CNFP#31 application, or R5F2L387CNFP#31 equivalent, key selection criteria include its 80-pin LQFP package, 16-channel 10-bit ADC, dual 8-bit D/A converters, LIN bus hardware support, and low-power stop mode (2 µA).
Technical Context
The R5F2L387CNFP#31 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. It supports a 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), UART0/1/2 (with I²C mode on UART2), SSU, LIN module (using Timer RA and UART0), and a voltage-detection circuit with power-on reset and selectable detection levels.
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 |
| Memory | 48 KB program flash, 1 KB × 4 data flash (BGO enabled), 6 KB RAM |
| ADC | 10-bit resolution × 16 channels with sample-and-hold and sweep mode |
| LCD Driver | Supports up to 8 COM and 48 SEG pins; integrated voltage multiplier and regulator |
| Timers | Timer RA/RB (8-bit), RC (16-bit, 3-PWM), RD (16-bit × 2, 6-PWM + complementary/sawtooth), RE (RTC), RG (16-bit) |
| Power Modes | Standard, wait (3.5 µA @ 32 kHz), stop (2 µA), power-off (0.02 µA) |
| Package | 80-pin LQFP (PLQP0080KB-A), 0.50 mm pitch, -20°C to +85°C (N version) |
Pinout & Package
Package: 80-pin LQFP (PLQP0080KB-A), 12 × 12 mm body, 0.50 mm pin pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | SEG0–SEG7 / AN4–AN9 | Segment outputs and analog inputs for LCD and ADC |
| P1_0–P1_3 | SEG8–SEG11 / AN12–AN15 | Additional segment outputs and ADC inputs (16-channel total) |
| P2_0–P2_7 | SEG16–SEG23 / KI0–KI7 | Segment outputs and key input interrupt pins |
| P3_0–P3_7 | SEG24–SEG31 / INT0–INT7 | Segment outputs and external interrupt sources (8 vectors) |
| P4_0–P4_7 | SEG32–SEG39 / TXD1, RXD1, CLK1, TRCIOx | Segment outputs and UART1/trace clock I/O |
| P6_0–P6_7 | SEG44–SEG51 / TRDIOA0–TRDIOD1 | Segment outputs and Timer RD I/O for 6-pin PWM |
| P7_0–P7_7 | SEG52–SEG55 / COM0–COM7 | Segment/complement outputs for 8-common LCD drive |
| VL1–VL4, CL1, CL2 | LCD bias supply and clock | Integrated voltage multiplier supports 1/2, 1/3, 1/4 bias; CL1/CL2 enable static/duty control |
| XIN/XOUT, XCIN/XCOUT | Crystal oscillator inputs | Supports main system clock (up to 20 MHz) and 32 kHz real-time clock |
| RESET, MODE, WKUP0 | Reset, boot mode, wake-up | Hardware reset with internal pull-up; MODE selects boot source; WKUP0 enables wake from low-power modes |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erase/write during program execution without halting CPU |
| Hardware LIN Module | Dedicated LIN 2.1 transceiver interface using UART0 and Timer RA - no software bit-banging required |
| Low-Power Stop Mode | 2 µA typical current draw at 3.0 V with RTC running - enables battery-backed timekeeping |
| Programmable I/O Ports | 68 CMOS I/O pins with selectable pull-up resistors and 8 high-current drive ports (20 mA sink/source) |
| Integrated LCD Voltage Control | On-chip voltage multiplier and dedicated regulator eliminate need for external LCD bias IC |
| Dual 8-bit D/A Converters | Independent DA0/DA1 outputs usable for analog control signals or reference generation |
Applications
| Refrigerator Control Panel | Printer Front Panel |
|---|---|
|
Use Scenario: Real-time display of temperature zones, door status, and cycle progress on multiplexed segmented LCD. IC Role / Device Role / Timing Role: Primary MCU managing LCD drive timing, ADC sampling of thermistors, and LIN communication with compressor module. Use Value: Integrated 48-segment LCD controller eliminates external driver IC; BGO allows firmware updates without display interruption. |
Use Scenario: Status display showing paper jam, toner level, and network connectivity via 8-common LCD. IC Role / Device Role / Timing Role: System controller handling button scan, UART-based printer engine commands, and RTC-based job timestamping. Use Value: 16-channel ADC monitors multiple sensors; hardware LIN reduces host MCU load for peripheral coordination. |
| Home Audio System Display | Smart Thermostat Interface |
|
Use Scenario: Dynamic volume bar, input source indicator, and clock display on low-power segmented LCD. IC Role / Device Role / Timing Role: Dedicated display controller with real-time clock (Timer RE) and PWM-driven LED backlight dimming. Use Value: 8-bit D/A converters generate precise analog reference for audio DAC bias; stop mode preserves time while minimizing standby current. |
Use Scenario: Wall-mounted thermostat with ambient temperature sensing, schedule display, and HVAC control signaling. IC Role / Device Role / Timing Role: Sensor fusion node aggregating thermistor, humidity, and motion inputs; drives 48-segment display and controls relay via GPIO. Use Value: 68 programmable I/O pins support direct keypad matrix and relay drivers; voltage detection ensures reliable reset during brown-out. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2L367CNFP | 64-pin LQFP, 41 I/O pins, 10-channel ADC, max. 32-segment LCD drive | Suitable for smaller displays and fewer sensor inputs; lower pin count reduces PCB area | Select when display complexity and I/O requirements are reduced - not pin-compatible |
| R5F2L3ACCNFP | 100-pin LQFP, 88 I/O pins, 20-channel ADC, 56-segment LCD, -40°C to +85°C (D version) | Supports larger appliances with extended temperature range and higher integration density | Choose for industrial-grade thermal margin and expanded peripheral count - different package and footprint |
Compared with R5F2L387CNFP#31, R5F2L367CNFP offers reduced I/O and LCD capacity in a smaller package for cost-sensitive designs, while R5F2L3ACCNFP provides greater scalability and extended temperature operation at the expense of board space and layout redesign.
Availability
R5F2L387CNFP#31 is available at Aetrix Electronics and suitable for refrigerator control panels, printer front panels, home audio displays, and smart thermostat interfaces requiring stable component supply across long-lifecycle consumer electronics programs.
Supply support for R5F2L387CNFP#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/L38C Group is designed for cost-effective, low-power embedded control in consumer appliances with integrated LCD display, sensor interfacing, and communication peripherals.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F2L387CNFP#31?
The R5F2L387CNFP#31 operates at up to 20 MHz with a supply voltage of 2.7–5.5 V, or at 5 MHz down to 1.8 V for ultra-low-voltage applications. Its minimum instruction execution time is 50 ns under the 20 MHz/2.7–5.5 V condition, enabling responsive real-time control in appliance UIs.
Does the R5F2L387CNFP#31 support background operation (BGO) for data flash writes?
Yes, the R5F2L387CNFP#31 supports background operation (BGO) for its 1 KB × 4 data flash blocks. This allows firmware to execute application code while simultaneously erasing or programming data flash - critical for over-the-air updates and logging without display freeze or system interruption.
How many LCD segment and common outputs does the R5F2L387CNFP#31 provide?
The R5F2L387CNFP#31 supports up to 48 segment outputs and 8 common outputs, configured across P0–P7 and P6 pins. Its integrated voltage multiplier and regulator support 1/2, 1/3, and 1/4 bias ratios, eliminating external LCD bias components in most consumer display designs.
What communication interfaces are integrated into the R5F2L387CNFP#31?
The R5F2L387CNFP#31 integrates UART0/1/2 (with UART2 supporting I²C-bus mode), a synchronous serial unit (SSU), and a hardware LIN 2.1 module that uses UART0 and Timer RA. It does not include CAN, USB, or Ethernet interfaces.
Is the R5F2L387CNFP#31 pin-compatible with other R8C/L3x series MCUs like the R5F2L367CNFP or R5F2L3ACCNFP?
No, the R5F2L387CNFP#31 is not pin-compatible with R5F2L367CNFP (64-pin) or R5F2L3ACCNFP (100-pin). It uses an 80-pin LQFP (PLQP0080KB-A) package with unique pin assignments for its 48-segment LCD drive and 16-channel ADC - PCB layout must be specific to this variant.
R5F2L387CNFP#31 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- R8C/Lx/38C
- 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:
- 68
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 6K 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:
R5F2L387CNFP#31 FAQ
1.How can I place an order for R5F2L387CNFP#31 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2L387CNFP#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 R5F2L387CNFP#31 reliable?
The price and inventory of R5F2L387CNFP#31 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2L387CNFP#31 is usually 5 days.
3.What payment methods are accepted for R5F2L387CNFP#31?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2L387CNFP#31 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2L387CNFP#31?
R5F2L387CNFP#31 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2L387CNFP#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 R5F2L387CNFP#31?
For technical support, including R5F2L387CNFP#31 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2L387CNFP#31 requirements.
6.How does Aetrix verify that R5F2L387CNFP#31 is sourced from the original manufacturer or authorized distributors?
All R5F2L387CNFP#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 R5F2L387CNFP#31 meets industry standards.
7.What is the process for return or replacement of R5F2L387CNFP#31?
All R5F2L387CNFP#31 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2L387CNFP#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 R5F2L387CNFP#31 part is unused and in its original packaging.
Return procedure for R5F2L387CNFP#31:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F2L387CNFP#31 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
