pcf85176 NXP Semiconductors, pcf85176 Datasheet - Page 16
pcf85176
Manufacturer Part Number
pcf85176
Description
Universal Lcd Driver For Low Multiplex Rates
Manufacturer
NXP Semiconductors
Datasheet
1.PCF85176.pdf
(43 pages)
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Fig 11. Relationship between LCD layout, drive mode, display RAM filling order, and display data transmitted over the I
drive mode
multiplex
multiplex
multiplex
x = data bit unchanged.
static
1:2
1:3
1:4
S
S
S
S
S
S
S
S
S
S
S
S
S
n+2
n+3
n+4
n+5
n+6
n
n+1
n+2
n+3
n+1
n+2
n
n+1
LCD segments
e
e
e
e
f
f
f
f
d
d
d
d
g
g
g
g
a
a
a
a
c
c
c
c
b
b
b
b
S
S
S
S
n+1
n
n+7
n
DP
DP
DP
DP
BP1
BP0
BP1
BP0
BP0
BP0
LCD backplanes
BP1
BP2
BP2
BP3
rows/backplane
rows/backplane
rows/backplane
rows/backplane
display RAM
display RAM
display RAM
display RAM
outputs (BP)
outputs (BP)
outputs (BP)
outputs (BP)
rows
rows
rows
rows
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
DP
DP
n
c
x
x
x
n
a
b
x
x
n
b
c
x
n
a
c
b
byte1
byte1
n + 1
n + 1
n + 1
n + 1
b
x
x
x
g
x
x
a
d
g
x
e
g
d
f
f
display RAM address/segment outputs (s)
display RAM address/segment outputs (s)
display RAM address/segment outputs (s)
display RAM address/segment outputs (s)
byte1
display RAM filling order
n + 2
n + 2
n + 2
a
e
e
byte2
x
x
x
c
x
x
f
x
x
n + 3
n + 3
DP
x
x
x
d
x
x
f
columns
columns
columns
columns
byte1
byte2
byte3
n + 4
g
x
x
x
n + 5
e
byte2
byte4
x
x
x
n + 6
byte3
d
x
x
x
byte5
n + 7
DP
x
x
x
2
MSB
MSB
MSB
MSB
C-bus
c b a f g e d DP
a b f g e c d DP
b DP c a d g f e
a c b DP f e g d
transmitted display byte
001aaj646
LSB
LSB
LSB
LSB