CRT9021AP

CRT9021A / CRT9021AP is a specialized Video Attributes Controller integrated circuit manufactured by Standard Microsystems Corporation (SMC). It is primarily used in vintage computing and video terminal systems as an auxiliary chip to a main video controller, such as the Motorola 6845.

Technical Specifications

• Function: It adds video attributes to characters on a display, including reverse video, blinking, and other visual modifiers.
• Package Type: Typically found in a 28-pin DIP (Dual In-line Package).
• Technology: It is part of the "CRT" family of display-related chips produced during the 1980s.

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