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PDF ( 数据手册 , 数据表 ) LT035A-02A

零件编号 LT035A-02A
描述 TFT LCD MODULE
制造商 Laurel
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LT035A-02A 数据手册, 描述, 功能
Laurel Electronics Co., Ltd.
SPECIFICATION FOR TFT LCD MODULE
MODEL NO.: LT035A-02A
3.5, 320(RGB) x 240 PIXELS TFT LCD MODULE
REVISION
0.2
PREPARED
Y.D.Y.
CHECKED
L.Y.J.
APPROVED
L.Y.







LT035A-02A pdf, 数据表
Laurel Electronics Co., Ltd. www.laurellcd.com
LT035A-02A Rev 0.2 Page 8/22
5.3 AC Characteristics (VDD=3.3V, Ta=25°C)
5.3.1 Parallel 24-bit RGB Interface
Signal
Item Symbol Min. Typ. Max.
DCLK
Data
Period
High Time
Low Time
Setup Time
Hold Time
Period
Pulse Width
TCLK
TCH
TCL
TDS
TDH
TH
THS
- 156
- 78
- 78
12 -
12 -
- 408
5 30
-
-
-
-
-
-
-
HSYNC
Back Porch
Display Period
THB - 38 -
TEP - 320 -
Front Porch
Period
THF - 20 -
Tv - 262 -
VSYNC
Pulse Width
Back Porch
TVS 1 3 5
TVB - 15 -
Display Period
TVD - 240 -
Front Porch
TVF 2 4 -
Note 1: THS+THB=68TCLK.
2. TV=TVS+TVB+TVD+TVF
3. When SYNC mode is used, 1st data start from 68th DCLK after Hsync falling.
5.3.2 Serial 8-bit RGB Interface
Signal
Item Symbol Min. Typ. Max.
DCLK
Data
Period
High Time
Low Time
Setup Time
Hold Time
Period
Pulse Width
TCLK
TCH
TCL
TDS
TDH
TH
THS
- 52
- 78
- 78
12 -
12 -
- 1224
5 90
-
-
-
-
-
-
-
HSYNC
Back Porch
Display Period
THB 114
TEP - 960 -
Front Porch
Period
THF - 60 -
Tv - 262 -
VSYNC
Pulse Width
Back Porch
TVS 1 3 5
TVB - 15 -
Display Period
TVD - 240 -
Front Porch
TVF 2 4 -
Note 1: THS+THB=204TCLK
2. TV=TVS+TVB+TVD+TVF
3. When SYNC mode is used, 1st data start from 204th DCLK after Hsync falling.
Unit
ns
ns
ns
ns
ns
TCLK
TCLK
TCLK
TCLK
TCLK
TH
TH
TH
TH
TH
Unit
ns
ns
ns
ns
ns
TCLK
TCLK
TCLK
TCLK
TCLK
TH
TH
TH
TH
TH







LT035A-02A equivalent, schematic
Laurel Electronics Co., Ltd. www.laurellcd.com
LT035A-02A Rev 0.2 Page 16/22
5.3.14 SPI Timing Characteristics
The SPI interface of the lcm is used to receive commands to adjust the TFT to the best display
result. Please refer to HX8238-D datasheet for details.
Item Symbol Min. Typ. Max. Unit
SPCLK Period
tclk 60 -
- ns
SPCLK High Width
tsh 30 -
- ns
SPCLK Low Width
tsl 30 - - ns
Data Setup Time
tds 12 -
- ns
Data Hold Time
tdh 12 -
- ns
SPENA to SPCLK Setup Time
tcss
20
-
- ns
SPENA to SPDA Hold Time tcsh 20 -
- ns
SPENA High Delay Time
tcsd 50 -
- ns
Transfer starts
SPENA
SPI Timing
Transfer ends
SPCLK
SPDAT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
01
11
MSB
LSB
0
0
RS RW
DB
15
DB
14
DB
13
DB
12
DB
11
DB
10
DB
9
DB
8
DB
7
DB
6
DB
5
DB
4
DB
3
DB
2
DB
1
DB
0
Device ID
Index register setting instruction
SPENA
SPCLK
SPDAT
First Transmission(Register)
tcsh
tcss
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
tclk tsl tsh
0 1 1 1 0 0 RS RW 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0
SPENA
Second Transmission(Data)
tcsd
SPCLK
SPDAT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
tds tdh
0 1 1 1 0 0 RS RW 0 0 0 1 0 0 1 0 0 1 1 0 0 1 0 0
Note: The example writes "0X1264h" to register R28h










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