sc16805 Silan, sc16805 Datasheet - Page 5

• Manufacturer Part Number: sc16805
• Description: Oled Driver Ic
• Manufacturer: Silan

FUNCTION DESCRIPTION
Bidirectional shift register
is selected by the DIR input. As the enable signal is in a disabled state, the internal clock signal and data bus are
fixed at “ L” , thereby, placing the chip in power saving mode. When multiple segment drivers are used, the EIO
terminals of the various drivers connected in series and the EIO terminal of the first driver is connected to VSS.
The enable control circuit automatically senses when 80 bits of data have been received. It sends the enable
signal, thus eliminating the need for an external control signal from the control unit.
Data register
register. Consequently, the relationship between the serial display data and segment output is independent of the
shift clock input number.
Latch
output them to the OLED driver.
Level shifter
OLED driver
Display data and driver output pins relationship
4-bit parallel mode
1-bit serial mode
Note: DF1 pin must be connected to either V
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The output of this shift register is used to store the data bus signals in the data register. The direction of the shift
This register converts the data bus signal from serial to parallel mode via the output of the bidirectional shift
The latch circuit receivers the contents of the data register when triggered by the falling edge of the LP, and
The level shifter is a level interface circuit used to convert the V
The OLED driver outputs the OLED driver current.
DF1
DF1
V
V
DD
DD
V
DIR
V
DIR
V
V
DD
SS
SS
DD
Output
Output
EIO1
EIO1
Input
Input
Output
Output
EIO2
Input
EIO2
Input
Input
Data
Input
Data
D0
D1
D2
D3
D0
D1
D2
D3
D0
D0
DD
or V
SG77
SG78
SG79
SG80
SG80
SG4
SG3
SG2
SG1
1st
L3
F0
SS
, DF1 cannot be floating.
SG73
SG74
SG75
SG76
SG8
SG7
SG6
SG5
SG79
2nd
F1
L2
DD
control unit signals to V16 driver signal level.
SG69
SG70
SG71
SG72
SG12
SG11
SG10
SG9
SG78
3rd
L1
F2
Output
Clock
… … .
… …
… …
… …
… …
… …
… …
… …
… …
… …
… …
… …
SG10
SG11
SG12
SG72
SG71
SG70
SG69
30th
SG9
SG3
REV:1.0
F2
L1
SG76
SG75
SG74
SG73
31st
SG5
SG6
SG7
SG8
SG2
SC16805
F1
L2
Page 5 of 8
2004.08.03
SG80
SG79
SG78
SG77
32nd
SG1
SG2
SG3
SG4
SG1
F0
L3