pcf8534 NXP Semiconductors, pcf8534 Datasheet - Page 18

• Manufacturer Part Number: pcf8534
• Description: Universal Driver Multiplex Rates
• Manufacturer: NXP Semiconductors

Fig 10. Relationship between LCD layout, drive mode, display RAM filling order and display data transmitted over the I
X = data bit unchanged
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drive mode
static
1 : 2
multiplex
1 : 3
multiplex
1 : 4
multiplex
S n+1
S n+3
S n+5
S n+6
S n+2
S n+3
S n+2
S n+4
S n+1
S n+1
S n+2
LCD segments
S n
S n
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 n
S n+1
S n+7
S n
DP
DP
DP
DP
BP0
BP0
BP1
BP1
BP0
BP0
LCD backplanes
BP1
BP2
BP2
BP3
bit/
BP
bit/
BP
bit/
BP
bit/
BP
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
n 1
n 1
n 1
n 1
b
x
x
x
f
g
x
x
a
d
g
x
f
e
g
d
display RAM filling order
n 2
n 2
n 2
a
x
x
x
e
c
x
x
f
e
x
x
n 3
n 3
f
x
x
x
d
DP
x
x
n 4
g
x
x
x
n 5
e
x
x
x
n 6
d
x
x
x
n 7
DP
x
x
x
2
C bus.
transmitted display byte
MSB
MSB
MSB
MSB
c b a f
a b f
b DP c a d g f
a c b DP f
g e c d DP
g e d DP
e g d
mgl751
LSB
LSB
LSB
LSB
e