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PCF8576D Datasheet(PDF) 18 Page - NXP Semiconductors

Part No. PCF8576D
Description  Universal LCD driver for low multiplex rates
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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PCF8576D Datasheet(HTML) 18 Page - NXP Semiconductors

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x = data bit unchanged.
Fig 12. Relationship between LCD layout, drive mode, display RAM filling order and display data transmitted over the I2C-bus
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a c
b DP f
egd
MSB
LSB
b DP c a d gfe
MSB
LSB
a bfg e c d DP
MSB
LSB
c b a
f
ged DP
MSB
LSB
drive mode
static
1:2
multiplex
1:3
multiplex
1:4
multiplex
LCD segments
LCD backplanes
display RAM filling order
transmitted display byte
BP0
BP0
BP1
BP0
BP1
BP2
BP1
BP2
BP3
BP0
n
c
x
x
x
0
1
2
3
b
x
x
x
a
x
x
x
f
x
x
x
g
x
x
x
e
x
x
x
d
x
x
x
DP
x
x
x
n + 1
n + 2
n + 3
n + 4
n + 5
n + 6
n + 7
rows
display RAM
rows/backplane
outputs (BP)
byte1
columns
display RAM address/segment outputs (s)
n
a
b
x
x
0
1
2
3
f
g
x
x
e
c
x
x
d
DP
x
x
n + 1
n + 2
n + 3
byte1
byte2
rows
display RAM
rows/backplane
outputs (BP)
columns
display RAM address/segment outputs (s)
n
b
DP
c
x
0
1
2
3
a
d
g
x
f
e
x
x
n + 1
n + 2
byte1
byte2
byte3
rows
display RAM
rows/backplane
outputs (BP)
columns
display RAM address/segment outputs (s)
n + 1
n
a
c
b
DP
0
1
2
3
f
e
g
d
byte1
byte2
byte3
byte4
byte5
rows
display RAM
rows/backplane
outputs (BP)
columns
display RAM address/segment outputs (s)
Sn+2
Sn+3
Sn+1
Sn
DP
a
f
b
g
e
c
d
Sn+2
Sn+1
Sn+7
Sn
Sn+3
Sn+5
Sn+6
Sn+4
DP
a
f
b
g
e
c
d
Sn
Sn+1
Sn+2
DP
a
f
b
g
e
c
d
Sn+1
Sn
DP
a
f
b
g
e
c
d


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