Tags & Keywords
#TFT-LCD #SPI #2.8inch #240x320 #QVGA #262kColors #UltraCompact #LowPinCount #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LSC028T03-S-V1, a 2.8-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a QVGA resolution of 240(RGB)×320, 262 thousand colors, and a SPI interface, this module is an ultra-compact, low-pin-count solution for space and I/O constrained designs. It is ideal for wearable devices, miniature IoT gadgets, simple handheld instruments, educational breakout boards, and as a secondary status display where a small color screen is needed without consuming many microcontroller pins.
Key Specifications
- Brand & Model: LESSON Smart Display LSC028T03-S-V1
- Screen Size: 2.8 inches (diagonal)
- Module Size: 56.7 (H) × 77.7 (V) × 3.79 (D) mm
- Active Area: 43.2 (H) × 57.6 (V) mm
- Driver IC: Integrated
- Display Technology: Transmissive type a-Si TFT-LCD
- Module Type: TFT-LCD Module
- Display Resolution: 240(RGB) × 320 pixels (QVGA)
- Display Colors: 262k Colors
- Interface: SPI (3-wire or 4-wire with D/CX pin)
- Absolute Maximum Ratings:
- Supply Voltage (VCC, IOVCC): -0.3V to 4.6V
- Operating Temperature (Topr): -20°C to +70°C
- Storage Temperature (Tstg): -30°C to +80°C
- Electrical Characteristics (Typical @ VDDI=1.65-3.3V, VDD=2.4-3.3V):
- SPI Interface Timing: Provides a comprehensive timing table for both Write and Read operations:
- Write Mode: T_SCYCW=16ns (min clock cycle), T_SDS=7ns (data setup).
- Read Mode: T_SCYCR=150ns, T_SHR=60ns.
- D/CX Control: Defines setup (T_DSS=10ns) and hold (T_CHH=10ns) times.
- Output Characteristics: Defines data access time (T_ACC=10-50ns) and output disable time (T_OH=15-50ns) under different load capacitances.
- Environmental Compliance: RoHS Compliant
General Description
The LSC028T03-S-V1 is a minimalist SPI-based color display. The specification focuses heavily on the SPI interface timing, providing detailed parameters for both writing to and reading from the display controller. The inclusion of D/CX (Data/Command) pin timing and output driver characteristics (T_ACC, T_OH) indicates a typical controller that supports command-based configuration and bidirectional data. The 262k color depth is sufficient for many simple graphical user interfaces. Its small size and simple interface make it incredibly easy to integrate into projects with limited PCB space and available GPIOs.
Key Features
- Ultra-Compact 2.8" Form Factor: Fits into very small devices.
- Low-Pin-Count SPI Interface: Typically requires only 4-6 pins (CS, SCL, SDA, D/C, RESET, VCC/GND).
- Full SPI Read/Write Timing: Enables robust driver development.
- Defined Output Drive Capability: Important for bus loading considerations.
- Simple and Cost-Effective: An entry point into color TFT displays.
Application Scenarios
- Miniature Wearables: Simple smartbands, compact fitness trackers.
- IoT Device Status Displays: For sensors or gateways.
- Handheld Test Instruments: Basic multimeters, environmental meters.
- Educational & Hobbyist Projects: Arduino, Raspberry Pi Pico displays.
- Secondary Displays in Larger Systems: For status or debug information.
Conclusion
The LESSON Smart Display LSC028T03-S-V1 is the go-to choice for adding a small, color display with minimal wiring complexity. Its detailed SPI specs make it reliable and easy to interface, perfect for compact, cost-sensitive, or I/O-limited designs.
