Datasheet
DEM 640480D TMH-PW-N (C1-TOUCH) Production Specification
Version: 0 PAGE: 7
3.3 AC Timing Characteristic of The LCD
3.3.1 Timing Condition
Parameter Symbol Min. Typ. Max. Unit. Remark
CLK frequency
F
CPH
22.66 25.175 27.69 MHZ
CLK period
T
CPH
36.11 39.7 44.13 ns
CLK pulse duty
T
CWH
40 50 60 %
HS period
T
H
750 800 850 T
CPH
HS pulse width
T
WH
5 30 -- T
CPH
HS-first horizontal data time
T
HS
112 144 175 T
CPH
Display period
T
HA
-- 640 -- T
CPH
HS setup time
THST 10 -- -- ns
HS hold time
THHD 10 -- -- ns
VS pulse width
T
WV
1 3 5 T
H
First line data input time
T
STV
-- 35 -- T
H
VS period
T
V
515 525 535 T
H
VS setup time
T
VST
10 -- -- ns
VS hold time
T
VHD
10 -- -- ns
Note : When SYNC mode is used, 1st data start from 144th CLK after HS falling (when STHD[5:0]=00000)
Parameter Symbol Min. Typ. Max. Unit. Remark
DEN Period
T
DEN
-- 800 -- T
CPH
DEN pulse width
T
EP
-- 640 -- T
CPH
DEN frame active time
T
DEA
-- 480 -- T
DEN
DEN frame blanking time
T
DEB
-- 45 -- T
DEN
DEN setup time
T
ESU
10 -- -- ns