ssd1800 ETC-unknow, ssd1800 Datasheet - Page 13

• Manufacturer Part Number: ssd1800
• Description: 80x16 + 1 Icon Line Lcd Segment / Common Driver With Controller For Character Display System
• Manufacturer: ETC-unknow

7.7 V
following relationship:
V
VL6 is the most positive LCD driving voltage. It can be supplied externally or generated by the internal regulator. It is
recommended to add a capacitor between VL6 and Vss for external regulator.
7.8 VF
LCD driving level, V
respectively (see application circuit)
7.9 REF
internal voltage regulator operation.
7.10 DIRS
7.11 CLK
external clock mode, CLK is used as the clock and OSC bit should be OFF.
7.12 P/
is pulled low, serial interface will be selected. Read back operation is only available in parallel mode.
7.13 DL
SSD1800 Series
L6
LCD driving voltages. They can be supplied externally or generated by the internal bias divider. They have the
This pin is the input of the built-in voltage regulator. When external resistor network is selected to generate the
This pin is to select the input voltage of internal voltage regulator. This pin is need to pulled low for normal
This pin controls the direction of Segment.
When DIRS = Low
When DIRS = High
External clock input. It must be fixed to high or low when the internal oscillation circuit is used. In case of the
This pin is serial/ parallel interface selection input. When this pin is pulled high, parallel mode is selected. When it
This pin is to select the data length for parallel data input.
When P/ S
When P/ S
This pin must be fixed to high or low in serial mode.
> V
L6
L5
VL5
VL4
VL3
VL2
, V
SEG0 -> SEG2 -> ..... -> SEG78 -> SEG79
SEG79 -> SEG78 -> ..... -> SEG1 -> SEG0
DL = Low or High: serial interface mode
DL = Low: 4-bit bus mode
DL = High: 8-bit bus mode
S
> V
L5,
L4
V
= Low
= High
> V
L4
Rev 1.0
, V
L3
1:4 bias
3/4 * VL6
2/4 * VL6
2/4 * VL6
1/4 * VL6
L6
> V
L3
, two external resistors, R
, V
L2
> V
L2
P 13/42 Mar 2004
ss
1:5 bias (default)
4/5 * VL6
3/5 * VL6
2/5 * VL6
1/5 * VL6
1
and R
2
, are connected between AV
SS
and V
F
, and V
Solomon Systech
F
and V
L6
,