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PDF LD1207 Data sheet ( Hoja de datos )
| Número de pieza | LD1207 | |
| Descripción | Led And Led Display Driver | |
| Fabricantes | Integral Korea | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LD1207 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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TECHNICAL DATA
LD1207
DESCRIPTION
The LD1207 is specifically designed for LED and LED DISPLAY derivers.
The LD1207 have 12/9 segment output lines, 7 to 4 grid output lines, one display memory, control circuit
and 3 line serial data interface.
This function are all incorporated into a single chip to build a highly reliable peripheral
device for a single chip microcomputer. It is very convenience to control for numeric display.
LD1207’s pin assignments and application circuit are optimized for easy PCB Layout and cost saving
advantages.
FEATURES
· CMOS Technology
· Segment output line selection by command : 12 ~ 9
· Grid output line selection by command : 7 ~ 4
· Operation voltage : 5V
· Low Power Consumption
· 8-Step Dimming control by command
· Serial Interface for Clock, Data Input, Strobe Pins
· 24-pin, SOP Package
APPLICATION
· Segment LED display : VCR, DVD, MWO
1
1 page  
TECHNICAL DATA
LD1207
COMMAND 2 : DATA SETTING COMMANDS
The Data Setting Commands executes the Data Write Mode for LD1207. The Data Setting
Command, the bits5 and 6 (b4, b5) are ignored, bit7(b6) is given the value of “1” while bit8(b7) is
given the value of “0”. Please refer to the diagram below.
When power is turned ON, bit 4 to bit 1 (b3 to b0) are given the value of “0”.
MSB
LSB
0 1 - - b3 b2 b1 b0
Don’t Care
Data Write Mode Settings :
00 : Write Data to Display Mode
Address Increment Mode Settings (Display Mode):
0 : Increment Address after Data has been Written
1 : Fixes Address
Mode Settings :
0 : Normal Operation Mode
1 : Test Mode
5
5 Page 
TECHNICAL DATA
LD1207
APLICATIONS
Display memory is updated by incrementing addresses. Please refer to the following diagram.
STB
CLK
---------------------
DIN
Command1 Command2 Command3
Data1
---------------------
Data2
Command4
Where : Command 1 : Display Mode Setting
Command 2 : Data Setting Command
Command 3 : Address Setting Command
Data 1 to n : Transfer Display Data (14 Bytes max.)
Command 4 : Display Control Command
The following diagram shows the waveforms when updating specific addresses.
STB
DIN
CLK command2 command3 Data command3 Data
Where : Command 2 -- Data Setting Command
Command 3 -- Address Setting Command
Data -- Display Data
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LD1207.PDF ] | |
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