SSD1809 Solomon Systech, SSD1809 Datasheet - Page 20

• Manufacturer Part Number: SSD1809
• Description: LCD SEGMENT / COMMON DRIVER
• Manufacturer: Solomon Systech

www.DataSheet4U.com
SSD1809
20
Bit Pattern
01101011
011011X
0111000X
0111001X
0111010X
0111011X
01111000
01111001
0111101X
0111110X
0111111X
1X
6
X
5
X
REV1.3
03/02
4
X
1
X
0
0
0
0
0
0
0
3
X
0
2
X
1
X
0
Command
Set Frame Frequency
Set Temperature Coefficient
Increase/Decrease Contrast Value
Reserved
Set DC-DC Converter Mode
Reserved
Reserved
Reserved
Set External / Internal Oscillator
Reserved
Set Oscillator Enable
Set GDDRAM Column Address
Comment
Next command (byte) on D
quency Register.
D
D
D
D
D
*D
X
X
X
X
X
X
X
X
For internal oscillator mode, place a resistor between OSC1 and
OSC2 pins. For external oscillator mode, feed clock input to OSC2
pin.
X
X
This is the master control for oscillator circuitry. This command
should be issued after the “ External/Internal Oscillator” command.
Set GDDRAM Column Address.Use X
bits. MSB of the address set by “Set MSB of GDDRAM column
address command.
1
1
0
0
0
0
0
0
0
0
3
3
3
3
3
D
D
D
D
D
7
X
X
=0: Decrease by one level
=1: Increase by one level
=0 : Normal Mode (POR)
=1 : Regulated Mode
=0: Internal Oscillator (POR)
=1: External Oscillator
=0: Oscillator Master Disable(POR)
=1: Oscillator Master Enable
~D
0
0
2
2
2
2
2
=00: 0.00% (POR)
=11: -0.35%
D
D
D
D
D
4
1
1
1
1
1
D
D
D
D
D
: Don’ t care.
0
0
0
0
0
= 0000 : Frame Frequency Register = 0
= 0001 : Frame Frequency Register = 1
= 0010 : Frame Frequency Register = 2
= 0101 : Frame Frequency Register = 5 (POR)
= 1111 : Frame Frequency Register = 15
3
~D
0
:
:
:
:
:
:
will be written to the Frame Fre-
6
X
5
X
4
X
3
X
2
X
1
X
0
as address
SOLOMON