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Description
The ST7687S-G4P is a driver and controller LSI designed for 65K color graphic dot-matrix liquid crystal display systems. It features 384 segment outputs and 160 common outputs, allowing for various partial display and partial window moving & data scrolling. With a capacity of 128 x 160 x 16 = 327,680 bits, it includes an on-chip display data RAM for efficient display data read/write operations. The ST7687S-G4P supports different color modes, including 256 color mode (RGB), 4k colors (RGB), 65K colors (RGB), and 262K colors (RGB). It is compatible with 8/16-bit parallel bi-directional interface and 3-line (9-bits) or 4-line (8-bits) serial interface for easy microprocessor integration. The chip also includes an on-chip low power analog circuit with an electronic contrast control function and voltage follower. Additionally, it operates at a supply digital voltage (VDDI) of 1.65~3.3V and a supply analog voltage (VDDA) of 2.4~3.3V. The ST7687S-G4P is commonly used in COG applications.
Specifications and features
- Driver Output Circuits: 384 segment outputs / 160 common outputs
- Applicable Duty Ratios: Various partial display, partial window moving & data scrolling
- Gray-Scale Display: 4FRC & 31 PWM function circuit to display 64 gray-scale display
- Color support by Interface: 256 color mode (RGB), 4k colors (RGB), 65K colors (RGB), 262K colors (RGB)
- Microprocessor Interface: 8/16-bit parallel bi-directional interface with 6800-series or 8080-series, 3-line (9-bits), 4-line (8-bits) serial interface
- On-chip Low Power Analog Circuit: On-chip oscillator circuit and voltage regulator, voltage converter (x5, x6, x7, x8) with internal booster capacitors, extremely few outsider components required (4 capacitors), on-chip electronic contrast control function, voltage follower (LCD bias: 1/9, 1/10, 1/11, 1/12, 1/13, 1/14)
- Operating Voltage Range: Supply Digital Voltage (VDDI): 1.65~3.3V, Supply Analog Voltage (VDDA): 2.4~3.3V, LCD driving voltage (VOP = V0 - VSS): Max: 18V
- LCD Driving Voltage (PROM): Contrast Adjustment Value is stored in the built-in PROM (Programmable ROM) for better display quality
- LCD Driving Setting Suggestion: Vop=15~16V, Bias=1/9~1/11
- Package Type: Application for COG
Application Scenarios
The ST7687S-G4P is commonly used in applications that require 65K color graphic dot-matrix liquid crystal display systems. It is suitable for various display scenarios, including portable devices, electronic instruments, automotive dashboards, and industrial control panels. With its compact size and low power consumption, it is an ideal choice for products that prioritize display quality and energy efficiency.
Comparison
Advantages- Supports multiple color modes for versatile display options
- Efficient on-chip display data RAM for optimized read/write operations
- Compatible with different microprocessor interfaces for easy integration
- Includes an on-chip low power analog circuit with electronic contrast control
- Operates at a wide range of supply voltages for flexible power requirements
- Offers suggested LCD driving settings for improved display quality
- Application-specific package type (COG) for easy installation and compact design
Disadvantages- Requires external capacitors for voltage conversion
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Datasheet
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Shopping guide
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- Datasheet: Download ST7687S-G4P
- Chipdatas Part: CD93-ST7687S-G4P
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 03:22 +0800
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