PCF88332DA PHILIPS [NXP Semiconductors], PCF88332DA Datasheet - Page 67

• Manufacturer Part Number: PCF88332DA
• Description: STN RGB - 132 X 132 X 3 driver
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
7.9
The column drivers section includes 132
outputs (C0 to C395) which should be connected directly
to the LCD. When less than 396 columns are required, the
unused column outputs must be left open-circuit.
The column output signals are generated in the data
processing block by reading out data from the display RAM
and processing with the appropriate orthogonal function
which represents the simultaneously selected rows.
7.10
The row drivers section includes 132 row outputs which
should be connected directly to the LCD. When less than
132 rows are required the unused column outputs must be
left open-circuit.
When the PCF8833 is operating in full Display mode,
4 rows are always selected simultaneously. In partial
Display mode the active row output signals are selected
one after the other.
2003 Feb 14
handbook, full pagewidth
STN RGB - 132
Column drivers, data processing and data
latches
Row drivers
C4
C3
C2
C1
C VDD2
C4
C4
C3
C3
C2
C2
C1
C1
V DD2
V SS2
MULTIPLIER 1
VOLTAGE
132
V LCDOUT1
Fig.37 LCD voltage and bias level generator.
C5
V LCDIN1
3 driver
3 column
C VLCD1
C5
C5
V DD3
V SS1
MULTIPLIER 2
VOLTAGE
MONITOR
V LCDSENSE
67
V LCDOUT2
8
The 8080-series 8-bit bidirectional interface can be used
for communication between the microcontroller and the
PCF8833. The selection of this interfaces is done with pins
PS2, PS1 and PS0; see Section 7.1.1.
The interface functions of the 8080-series parallel
interface are given in Table 86.
Table 86 8080-series parallel interface function; note 1.
Note
1. R = rising edge.
C VDD1
D/C
C VLCD2
PARALLEL INTERFACE
0
1
1
0
1
1
RD
R
R
R
1
1
1
V DD1
V SS1
GENERATION
LEVEL
BIAS
V LCDIN2
WR
R
R
R
R
1
1
command write
command data write
display data write
read status register
none
forbidden
Objective specification
MGU953
OPERATION
PCF8833
V LCD
V2H
V1H
VC
V1L
V2L
V SS