EM83053 - ELAN Microelectronics Corp

EM83053 KEYBOARD ENCODER

The EM83053A/BH microcontroller is dedicated to a keyboard encoder ,specially designed for IBM PC AT and all compatible machines. The EM83053A/BH controll all scan codes, three LEDs status, scan timing and communications between the keyboard and PC. It is easy to implement a high performance, low cost keyboard with the minimal external components. FEATURES .

Features

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• Low cost - eliminate need external components. Phantom key detects. RC oscillator ( 1.8432MHz ). Support scan code set 1 ,2 and 3. Support PC AT and PS/2 keyboard . Low power CMOS device technology. Internal pull-up resistor. Tri-state outputs for easy board application. Built-in 4K ROM. Support WINDOWSTM 95, 98, 2000 keys. 104/107 keys with multi-media or other special application keyboard encoder. WINDOWS is registered trademarks of Microsoft corperation. APPLICATION
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• IBM PC AT or compatible machine keyboard. IBM PS/2 model 30,50,60,80 or compatible machin.