PCF8579 Philips Semiconductors, PCF8579 Datasheet - Page 29
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PCF8579
Manufacturer Part Number
PCF8579
Description
LCD column driver for dot matrix graphic displays
Manufacturer
Philips Semiconductors
Datasheet
1.PCF8579.pdf
(40 pages)
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V DD
SCL
SDA
C
C
C
C
C
V LCD
V DD
R
R
R
R
(4 2 3)R
V SS
V DD
V 2
V 3
V 4
V 5
V LCD
SDA
V SS
(ROW MODE)
SCL
PCF8578
CLK SYNC
OSC
SA0
unused columns
V SS V DD
V SS
R OSC
/
subaddress k 1
8
rows
32
V DD
Fig.22 Split screen application with 1 : 32 multiplex rate.
V DD
V SS
SA0
V SS
A3
A2
A1
A0
V DD
V LCD
V 3
V 4
SDA
SYNC
SCL
CLK
PCF8579
PCF8579
1
CLK SYNC
k
SCL SDA SA0
40
columns
40
columns
LCD DISPLAY
V
V DD
V SS
V SS
LCD
V SS
A0
A1
A2
A3
V
V 4
3
subaddress 0
V DD
subaddress 1
V DD
V DD
V SS
SA0
V SS
A3
A2
A1
A0
V DD
V LCD
V 3
V 4
SDA
1:32 multiplex rate
32 x 40 x k dots (k
(20480 dots max.)
1:32 multiplex rate
32 x 40 x k dots (k
(20480 dots max.)
SYNC
SCL
CLK
PCF8579
PCF8579
2
CLK SYNC
2
SCL SDA SA0
40
columns
40
columns
16)
16)
V
V DD
V SS
V SS
LCD
V SS
A0
A1
A2
A3
V
V 4
3
subaddress 1
V DD
subaddress 0
V DD
V DD
V SS
SA0
V SS
A3
A2
A1
A0
V DD
V LCD
V 3
V 4
SDA
SYNC
SCL
CLK
PCF8579
PCF8579
k
CLK SYNC
1
SCL SDA SA0
40
columns
40
columns
V
V DD
V SS
V SS
LCD
V SS
V
V 4
A0
A1
A2
A3
3
subaddress k 1
V DD
32
MSA846