ST7637 datasheet(35/210 Pages) SITRONIX

Part #	ST7637

Description	65K 132x132 Color Dot Matrix LCD Controller/Driver

PDF	210 Pages

Scroll/Zoom	100%

Manufacturer	SITRONIX [Sitronix Technology Co., Ltd.]

Direct Link	http://www.sitronix.com.tw

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35 / 210 page

ST7637

Ver 1.6

35/210

2009/03

7.4.3.

I/O Buffer Circuit

It is the bi-directional buffer used when MPU reads or writes the DDRAM. Since MPU’s read or write of DDRAM is

performed independently from data output to the display data latch circuit, asynchronous access to the DDRAM when the

LCD is turned on does not cause troubles such as flicking of the display images.

7.4.4.

Scroll Address Circuit

The circuit associates lines on DDRAM with COM output. ST7637 processes signals for the liquid crystal display on 1-line

basis. Thus, when specifying a specific area in the area scroll display or partial display, you must designate it in line.

7.4.5.

Display data Latch Circuit

This circuit is used to temporarily hold display data to be output from the DDRAM to the SEG decoder circuit. Since display

normal/inverse and display on/off commands are used to control data in the latch circuit alone, they do not modify data in

the DDRAM.

ST7637 Datasheet(PDF) 35 Page - Sitronix Technology Co., Ltd.