Features: Supports VESA VGA (640 x 350 / 640 x 640 / 640 x 480) Supports IBM VGA (640 x 350 / 640 x 400 / 640 x 480) Supports IBM 8514/A (Interlace / Non-Interlaced) Supports VESA Super VGA Supports VESA New Super VGA Supports European Super VGA Supports VESA XGA (1024 x 768)Supports Work Station ...
PT8501P20A: Features: Supports VESA VGA (640 x 350 / 640 x 640 / 640 x 480) Supports IBM VGA (640 x 350 / 640 x 400 / 640 x 480) Supports IBM 8514/A (Interlace / Non-Interlaced) Supports VESA Super VGA Supports...
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PT8501P20A is a frequency discriminator IC utilizing CMOS Technology specially designed for multi-sync display monitors. PT8501P20A supports a wide variety of display modes -- from VGA's 640 x 350 to work station's 1280 x 1024. By checking the frequency and/or polarity of the horizontal and/or vertical synchronous signals, PT8501P20A can decide the proper display mode. PT8501P20A then drives the corresponding output pins from high impedance to low level. PT8501P20A also sends out negative polarity horizontal/vertical synchronous signals. PT8501P20A 's highly comprehensive features make it very reliable in performance.