The Gotop GT21L16S2Y is a font chip with 8 pins in a SOP-8, 150mil package. The IC is RoHS compliant, and is used to control the physical elements of various types of display systems and electronic components. The chip is able to handle address decoding and memory mapping, allowing the appropriate source data to be transferred to the destination device. It can also be used to change the resolution of visual output, allowing for larger characters and/or more detail to be displayed on the screen. This is particularly useful in applications such as digital signage, medical imaging, and avionics.