Datasheet

DEM 320240D TMH-PW-N (A-TOUCH) Production Specification
Version: 1 PAGE: 8
3.3 AC Timing Characteristic of The LCD
3.3.1 Timing Condition
Signal Parameter Symbol Min. Typ. Max. Unit. Remark
DCLK
DCLK period TOSC - 156 - ns
Frequency FOSC - 6.4 - MHz
DCLK High plus width TCH - 78 - ns
DCLK Low plus width TCL - 78 - ns
RGB
DATA
Data setup time TSU 12 - - ns
Data hold time THD 12 - - ns
Hsync
Hsync period TH - 408 - TOSC
Hsync pulse width THS 5 30 - TOSC
Back-Porch THB 38 TOSC
Front-Porch THF 20 TOSC
Hsync rising time TCr - - 700 ns
Hsync falling time TCf - - 300 ns
Vsync
Vsync period
NTSC - 262 - TH
PAL - 312 - TH
Vsync pulse width TVS 1 3 5 TH
Back-Porch
NTSC
TVB
15 TH
PAL 23 TH
Display Period TVD 240 TH
Front Porch
NTSC
TVF
5 TH
PAL 46 TH
Vsync rising time TVr - - 700 ns
Vsync falling time TVf - - 1.5 μs
Vsync falling to Hsync
rising time for odd field
THVO 1 - - TOSC
Vsync falling to Hsync
falling time for even field
THVE 1 - - TOSC
DEN
Vsync-DEN time
NTSC TVSE - 18 - TH
PAL TVSE - 26 - TH
Hsync-DEN time THE 36 68 88 TOSC
DEN plus width TEP - 320 - TOSC
Note: If DEN is fixed to low, the SYNC mode is used. Otherwise DE mode is used. When SYNC mode is
used, 1st data start from 68th CLK after H-sync falling