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EC3648

更新时间： 2022-12-28 03:17:32

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EC3648 数据手册

PS2 KEYBOARD CONTROLLER

EC3648

Preliminary

ꢀFEATURE

zꢀLow cost - eliminate need external components.

zꢀPhantom key detects.

zꢀSupport scan code set 1 ,2 and 3.

zꢀSupport PC AT and PS/2 keyboard .

zꢀLow power CMOS device technology.

zꢀInternal pull-up resistor.

zꢀTri-state outputs for easy board application.

zꢀBuilt-in 8-bit’s CPU.

zꢀ5K bytes of ROM.

zꢀ128 bytes of RAM.

zꢀSupport WINDOWS TM 95, 98, 2000, ME, XP keys.

zꢀNormal operation frequency is 4 MHz.

zꢀBuilt-in RC type oscillator with external resister

zꢀOn chip general 8 bit preload timer

ꢀDESCRIPTION

The EC3648 is a single chip CMOS micro-controller for keyboard application,

specially for IBM PC AT and all compatible machines. It incorporate a 8-bit’s CPU

core, 5K bytes of ROM, and 128 bytes of RAM used as working RAM and stack area.

The EC3648 control all scan codes, 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.

ꢀAPPLICATION

• IBM PC AT or compatible machine keyboard.

• IBM PS/2 model 30,50,60,80 or compatible machine keyboard.

• Japanese keyboard.

• Korean keyboard.

• Brazilian keyboard.

• European keyboard.

Rev 01

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型号	品牌	描述	获取价格	数据表
EC36-4R7K	PRODUCTWELL	CONFORMAL COATED INDUCTORS	获取价格
EC365.6UH+/-10%B	VISHAY	General Fixed Inductor, 1 ELEMENT, 5.6 uH, GENERAL PURPOSE INDUCTOR, AXIAL LEADED	获取价格
EC365.6UH+/-10%E	VISHAY	General Fixed Inductor, 1 ELEMENT, 5.6 uH, GENERAL PURPOSE INDUCTOR, AXIAL LEADED	获取价格
EC365.6UH+/-10%R	VISHAY	General Fixed Inductor, 1 ELEMENT, 5.6 uH, GENERAL PURPOSE INDUCTOR, AXIAL LEADED	获取价格
EC365.6UH10%E	VISHAY	General Fixed Inductor, 1 ELEMENT, 5.6 uH, GENERAL PURPOSE INDUCTOR	获取价格
EC365.6UH10%V	VISHAY	General Fixed Inductor, 1 ELEMENT, 5.6 uH, GENERAL PURPOSE INDUCTOR	获取价格