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PDF LD1207 Data sheet ( Hoja de datos )

Número de pieza LD1207
Descripción 12/9 Segment Output Lines
Fabricantes IK Semiconductor 
Logotipo IK Semiconductor Logotipo



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No Preview Available ! LD1207 Hoja de datos, Descripción, Manual

TECHNICAL DATA
LD1207
.comDESCRIPTION
t4UThe LD1207 is specifically designed for LED and LED DISPLAY derivers.
eThe LD1207 have 12/9 segment output lines, 7 to 4 grid output lines, one display memory, control circuit
eand 3 line serial data interface.
hThis function are all incorporated into a single chip to build a highly reliable peripheral
Sdevice for a single chip microcomputer. It is very convenience to control for numeric display.
taLD1207’s pin assignments and application circuit are optimized for easy PCB Layout and cost saving
aadvantages.
www.D U.comFEATURES
et4· CMOS Technology
e· Segment output line selection by command : 12 ~ 9
h· Grid output line selection by command : 7 ~ 4
· Operation voltage : 5V
S· Low Power Consumption
· 8-Step Dimming control by command
ta· Serial Interface for Clock, Data Input, Strobe Pins
· 24-pin, SOP Package
.DaAPPLICATION
www www.DataSheet4U.com· Segment LED display : VCR, DVD, MWO
1

1 page




LD1207 pdf
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
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LD1207 arduino
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
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