
1998
Sep
08
32
Philips
Semiconductors
Product
specication
LCD
row/column
driver
for
dot
matrix
graphic
displays
PCF8578
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R
OSC
VSS
SCL SDA SA0
CLK
SYNC
V3
V4
VDD
VLCD
A0
A1
A2
A3
VSS
PCF8579
1
40
columns
subaddress 0
VSS
SCL
SDA
SA0
CLK SYNC
V3
V4
VDD
V
LCD
PCF8578
(ROW MODE)
VLCD
VDD
V2
V5
VSS
unused columns
8
SCL
SDA
V DD
VSS
32
rows
R
C
VSS
SCL SDA SA0
CLK
SYNC
V3
V4
VDD
VLCD
A0
A1
A2
A3
VSS
PCF8579
2
40
columns
subaddress 1
VDD
VSS
SCL SDA SA0
CLK
SYNC
V3
V4
V DD
VLCD
A0
A1
A2
A3
VSS
PCF8579
k
40
columns
VDD
subaddress k 1
1:32 multiplex rate
32 x 40 x k dots (k
16)
(20480 dots max.)
LCD DISPLAY
VDD
(4 2 3)R
VSS
MSA845
Fig.24 Typical LCD driver system with 1 : 32 multiplex rate.