PCF8576CH NXP Semiconductors, PCF8576CH Datasheet - Page 20

• Manufacturer Part Number: PCF8576CH
• Manufacturer: NXP Semiconductors

Specifications of PCF8576CH

• Operating Supply Voltage (typ): 2.5/3.3/5V
• Number Of Digits: 20
• Number Of Segments: 160
• Package Type: LQFP
• Pin Count: 64
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Frequency (max): 315KHz
• Operating Supply Voltage (min): 2V
• Operating Supply Voltage (max): 6V
• Lead Free Status / Rohs Status: Compliant

Fig 13. 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
display RAM
bits (rows)/
backplane
outputs (BP)
display RAM
bits (rows)/
backplane
outputs (BP)
display RAM
bits (rows)/
backplane
outputs (BP)
display RAM
bits (rows)/
backplane
outputs (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
display RAM addresses (columns)/segment outputs (S)
display RAM addresses (columns)/segment outputs (S)
display RAM addresses (columns)/segment outputs (S)
display RAM addresses (columns)/segment outputs (S)
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
byte1
display RAM filling order
n + 2
n + 2
n + 2
a
e
e
x
x
byte2
x
x
x
c
x
x
f
n + 3
n + 3
DP
x
x
x
d
x
x
f
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
C-bus
MSB
MSB
MSB
MSB
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