YGV638 Datasheet, PDF (23/26 Pages) YAMAHA CORPORATION – a pattern graphic controller with an on-chip VRAM and the ample drawing performance enables high-resolution animated GUIs on WVGA display panels.

■ Electrical Characteristics
· Video Signal Interface
No.
Items
1 DOTCLK: delay time
VSYNC_N, HCSYNC_N, BLANK_N,
2 DRO7-0, DGO7-0, DBO7-0, LOADH,
STARTH, OUTENV: hold time
VSYNC_N, HCSYNC_N, BLANK_N,
3 DRO7-0, DGO7-0, DBO7-0, LOADH,
STARTH, OUTENV: delay time
DVSIN_N, DHSIN_N, DRI7-2, DGI7-2,
4
DBI7-2: setup time
DVSIN_N, DHSIN_N, DRI7-2, DGI7-2,
5
DBI7-2: hold time
6 AVSIN_N, AHSIN_N: setup time
7 AVSIN_N, AHSIN_N: hold time
Symbol
t_dDOTC
t_hDISP
t_dDISP
t_sDI
t_hDI
t_sDI
t_hDI
Min.
0
4
1
3
1
DGCKIN or DTCKIN or XIN
DOTCLK
Outputs
t_dDOTC
t_dDOTC
t_dDISP
Note) the above figure shows the state that DOTCLK is not reversed.
YGV638
Typ.
Max.
Unit Note
26
10
ns
t_hDISP
DGCKIN
ARCKIN
Inputs
t_sDI
t_hDI
4GV638A21
23