YGV638 datasheet(23/26 Pages) YAMAHA

Part #	YGV638

Description	a pattern graphic controller with an on-chip VRAM and the ample drawing performance enables high-resolution animated GUIs on WVGA display panels.

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Manufacturer	YAMAHA [YAMAHA CORPORATION]

Direct Link	http://www.yamaha.com

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23 / 26 page

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Electrical Characteristics

YGV638

4GV638A21

23

·

Video Signal Interface

No.

Items

Symbol

Min.

Typ.

Max.

Unit

Note

1

DOTCLK: delay time

tdDOTC

26

2

VSYNC_N, HCSYNC_N, BLANK_N,

DRO7-0, DGO7-0, DBO7-0, LOADH,

STARTH, OUTENV: hold time

thDISP

0

3

VSYNC_N, HCSYNC_N, BLANK_N,

DRO7-0, DGO7-0, DBO7-0, LOADH,

STARTH, OUTENV: delay time

tdDISP

10

4

DVSIN_N, DHSIN_N, DRI7-2, DGI7-2,

DBI7-2: setup time

tsDI

4

5

DVSIN_N, DHSIN_N, DRI7-2, DGI7-2,

DBI7-2: hold time

thDI

1

6

AVSIN_N, AHSIN_N: setup time

tsDI

3

7

AVSIN_N, AHSIN_N: hold time

thDI

1

ns

DGCKIN or DTCKIN or XIN

DOTCLK

Outputs

tdDOTC

tdDISP

thDISP

tdDOTC

Note) the above figure shows the state that DOTCLK is not reversed.

Inputs

tsDI

thDI

DGCKIN

ARCKIN

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