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DL7942 - single chip keyboard encoder

Description

The DL7942 a single chip keyboard encoder developed for IBM PC AT, IBM PS2 and compatible machine keyboard.

The device detects the key press and release activity, sends the scan code to system, and accepts the command from system.

Features

  • Support scan code set 1, 2 and 3.
  • Support PC AT and PS/2 keyboard.
  • 104/107 keys with with multi media or other special.

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Datasheet Details

Part number DL7942
Manufacturer QiXin
File Size 310.30 KB
Description single chip keyboard encoder
Datasheet download datasheet DL7942 Datasheet
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    DL7942 IC GENERAL DESCRIPTION The DL7942 a single chip keyboard encoder developed for IBM PC AT, IBM PS2 and compatible machine keyboard. The device detects the key press and release activity, sends the scan code to system, and accepts the command from system. A high performance, low cost keyboard can be achieved by using the DL7942 with the minimal external components. FEATURES  Support scan code set 1, 2 and 3.  Support PC AT and PS/2 keyboard.  104/107 keys with with multi media or other special application keyboard encoder.  Support WINDOWS95, 98, 2000 keys.  IBM PC AT or compatible machine keyboard  IBM PS/2 model 30, 50, 60, 80 or compatible machine keyboard.  Phantom key detects.  Built-in RC oscillator with external resistor.  Internal pull-up resistor for inputs.
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