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PDF LC1621-TRNNH6-D Data sheet ( Hoja de datos )
| Número de pieza | LC1621-TRNNH6-D | |
| Descripción | LCD Module | |
| Fabricantes | Laurel | |
| Logotipo |  |
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Laurel Electronics Co., Ltd.
LCD Module Specification
Model No.: LC1621-TRNNH6-D
Table of Contents
1. BASIC SPECIFICATIONS ···················································· 2
2. ABSOLUTE MAXIMUM RATINGS ·········································· 3
3. ELECTRICAL CHARACTERISTICS ······································· 4
4. OPERATING PRINCIPLES & METHODS ································ 6
5. MPU INTERFACE ····························································· 11
6. DISPLAY CONTROL INSTRUCTIONS ·································· 15
7. ELECTRO-OPTICAL CHARACTERISTICS ····························· 20
8. DIMENSIONAL OUTLINE ··················································· 21
9. LCD MODULE NUMBERING SYSTEM ·································· 22
10. PRECAUTIONS FOR USE OF LCD MODULE ······················· 23
RECORD OF REVISION
Rev.
Date
Page
0.1 2007/11/12
-
Item
- New release
Description
1 page  
Laurel Electronics Co., Ltd.
LC1621-TRNNH6-D Rev 0.1
-5-
RS
R/W
E
DB0-DB7
V IH
V IL
t SU1
V IL
t H1
t H1
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tW tF
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tR
V IH
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t SU2
t H2
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VIL
Valid Data
V IH
V IL
tC
MPU Write Timing
V IL
RS
R/W
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DB0-DB7
V IH
V IL
t SU1
t H1
VIH VIH
t H1
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tR
tD
V OH
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V IH
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t DH
Valid Data
tC
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MPU Read Timing
V IL
5 Page 
Laurel Electronics Co., Ltd.
LC1621-TRNNH6-D Rev 0.1
- 11 -
5. MPU INTERFACE
5.1 General
(1). The LCD controller can be operated in either 4 or 8 bits mode. Instructions/Data are
written to the display using the signal timing characteristics found in section 3.2.
When operating in 4-bit mode, data is transferred in two 4-bit operations using data bits
DB4 to DB7. DB0 to DB3 are not used. When using 4-bit mode, data is transferred twice
before the instruction cycle is complete. The higher order 4 bits (contents of DB4 to DB7
when interface data is 8 bits long) is transferred first, then the lower order 4 bits (contents
of DB0 to DB3 when interface data is 8 bits long) is transferred. Check the busy flag after
4-bit data has been transferred twice (one instruction). A 4-bit two operation will then
transfer the busy flag and address counter data.
(2). When operating in 8-bit mode, data is transferred using the full 8-bit bus DB0 to DB7.
5.2 Initialization
5.2.1 Initialization by the Internal Reset Circuit
The display can be initialized using the internal reset circuit when the power is turned on.
The following instructions are executed in initialization. The busy flag (BF) is kept in busy
state until initialization ends. The busy flag will go active 10ms after VDD rises to 4.5V.
(1). Display Clear
(2). Function set:
DL = 1 : 8 bit interface operation
N = 0 : 1 - line display mode
F = 0 : 5 x 7 dots character font
(3). Display ON/OFF Control:
D = 0 : Display OFF
C = 0 : Cursor OFF
B = 0 : Blink OFF
(4). Entry Mode Set
I/D = 1 : +1 (Increment Mode)
SH = 0 : No Display Shift operation
If the internal power supply reset timing cannot be met (0.1ms<trcc<10ms), the internal
reset circuit will not operate normally and initialization will not be performed. In this case,
the display must be initialized by software.
5.2.2 Software Initialization
Although software initialization is not mandatory, it is recommended that this procedure
always be performed. When the internal power supply reset timing cannot be met, then
the display must be initialized using one of the following procedures.
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LC1621-TRNNH6-D.PDF ] | |
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