STK55C641 Datasheet (Syntek Semiconductor)

STK55C641, STK55C641

: Pin name COM1-COM16 SEG1SEG40 VLCD VR CLK256 P10-P17 P20-P27 P30-P37 P40-P45 OSC1 OSC2 XOSC1 XOSC2 SOUND /RES /TEST VDD VSS1, VSS2 www.DataSheet4U.com STK55C641 (Total 100 pads) Function description LCD common output pins LCD segment output pins LCD voltage input LCD contrast control 256 Hz cloc

STK55C641 Features

* :

* Operating voltage : 2.5V - 6V.

* Maximum CPU operating frequency : 4MHz at 5V and 1.5MHz at 2.5V

* Dual oscillators : - 32.768 KHz crystal oscillator for LCD display and watch timer. - RC oscillator for system clock.

* 40 segments and 16 commons output for LCD driver. - 1/5 bias,