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 ...
PT8501P20: 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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PT8501P20 is a frequency discriminator IC utilizing CMOS Technology specially designed for multi-sync display monitors. PT8501P20 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, PT 8501 can decide the proper display mode. PT8501P20 then drives the corresponding output pins from high impedance to low level. PT8501P20 also sends out negative polarity horizontal/vertical synchronous signals. PT8501P20 's highly comprehensive features make it very reliable in performance.