GMA7975CA

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The GMA7975CA is a display module that is part of the LED Dot Matrix and Cluster family. It is used in a variety of electronic devices and applications, such as electronic signs, kiosk displays, and automotive displays. The GMA7975CA has a unique design that allows for better visibility and extreme durability.

The GMA7975CA is a 7x7 dot matrix display module in an 18-pin dual in-line package. It features an LED display that consists of 49 blue LEDs arranged in a 7x7 matrix. Each LED can be independently controlled with the on-board LED driver – the 8255A. This driver supports multiple display functions, such as addressing and make/break, and provides a very simple interface with microcontrollers.

The GMA7975CA is designed to have a very low power consumption, so it is ideal for battery-powered applications. The module can be powered by 3 to 30V DC, and its maximum power consumption is 0.44 watts. The LED driver also helps reduce power consumption, as it only uses power when the LEDs are changing state.

The LED driver of the GMA7975CA is a PIC-based power supply, which provides constant voltage and current, ensuring that the minimum voltage for the LEDs is many times higher than their rated voltage. This allows for a very bright display with excellent color consistency.

The GMA7975CA also provides many functions and features. It has a programming interface with a microcontroller, and it can be used to create a visual alert system, such as a warning light or bar graph. It also has a built-in power on/off switch, allowing the user to save power. Additionally, it features a temperature-compensated frequency generator, allowing the user to control the frequency of the display.

The GMA7975CA is an excellent choice for those who need a reliable and bright LED dot matrix display module. Its unique design and features make it the perfect solution for a variety of applications. From electronic signs to automotive displays, the GMA7975CA is the ideal display module.

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