产品名称：PS2 Keyboard Controller

产品型号：LP83053

产品描述：

This chip is dedicated to a keyboard encoder ,specially designed for IBM PC AT and all compatible machines.

The controller controls 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. With a

watchdog timer that prevents system standstill.

特征：

Built-in MCU

Support Carbon-Line membrane

Low cost - eliminate need external components.

Support scan code set 1, 2 and 3.

Support PC AT and PS/2 keyboard.

Low power CMOS device technology.

Internal pull-up resistor.

Built-in 4K ROM and 128 bytes SRAM

Built-in power-on reset

Built-in RC oscillator with an external resistor

Support WINDOWSTM 95, 98, 2000,xp,vista

104/107 keys with multi-media or other special

application keyboard encoder.

3 LED sink pins with internal serial resistors

参数：

DC Supply Voltage -0.3Vto+7.0V

Input/output Voltage GND-0.3V to VDD+0.3V

Operating Temperature -10oC to 60 oC

Storage Temperature -25oC to 125oC

Operating Voltage (Vdd) +4.5V to 5.5V