LS027B7DH01 Sharp Microelectronics, LS027B7DH01 Datasheet - Page 14

• Manufacturer Part Number: LS027B7DH01
• Description: LCD Graphic Display Modules & Accessories 2.7 WQVGA HR-TFT 400x240 w/FPC
• Manufacturer: Sharp Microelectronics

Specifications of LS027B7DH01

• Pixel Density: 400 x 240
• Module Size (w X H X T): 62.8 mm x 42.82 mm
• Viewing Area (w X H): 58.8 mm x 35.28 mm
• Operating Temperature Range: - 20 C to + 70 C
• Attached Touch Screen: No
• Product: 2.7 in WQVGA Monochrome
• Display Mode: Transmissive
• Interface: Serial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6-2) Power Supply Sequence
VDD/VDDA（5V）
DISP
EXTCOMIN
SCS
Others
【Remark】 Cautions when powering on
※Refer to timing chart and AC timing characteristics for detail
※1 ③ and ④ may be opposite (however, TCOM polarity inversion will not occur even with EXTCOMIN between
DISP=”L”. Also, when DISP and EXTCOMIN are simultaneously started up, allow 30us or more before SCS
starts up (It may be less than 60us).
※2 Setting value for pixel memory initialization
SCS=Driving accordingly to clear pixel internal memory method (use all clear flag or write all screen white)
S1=M2 (all clear flag) = “H” or write white
SCLK: Normal Driving
Remark 1) VDD and VDDA should rise simultaneously or VDD should rise first.
Remark 2) VDD and VDDA shouldl simultaneously or VDD should fall first
[ON Sequence]
(1) 5V rise time (depends on IC)
(2) Pixel memory initialization T2: 1V or more Initialize with M2 (all clear flag) or write all screen white
(3) Release time for initialization of TCOM latch
(4) TCOM polarity initialization time
[Normal Operation]
Duration of normal driving
[Off Sequence]
(5) Pixel memory initialization time
(6) VA, VB, VCOM initialization time
(7) 5V falling time (Depends on IC)
Time required to release COM related latch circuit initialization which is initializing using DISP signals
Time required initializing TCOM polarity accordingly to EXTCOMIN input
GND
GND
GND
GND
GND
①
T1
※2
※2
On Sequence
②
T2
③※1 ④※1
T3
T4
SPEC No.
LCY-1210401A
Normal operation
Normal operation
Normal operation
Normal operation
T5: 1V or more
T6: 1V or more
T4: 30us or more
T3: 30us or more
※2
※2
⑤
T5
MODEL No.
Off sequence
LS027B7DH01
⑥
T6
⑦
T7
GND
GND
GND
GND
GND
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