PCF8812U/2 PHILIPS [NXP Semiconductors], PCF8812U/2 Datasheet - Page 5

• Manufacturer Part Number: PCF8812U/2
• Description: 65 x 102 pixels matrix LCD driver
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
6
2000 Nov 22
RES
ROW 32 to
ROW 19
ROW 0 to
ROW 18
COL 0 to
COL 101
ROW 50 to
ROW 33
ROW 51 to
ROW 64
V
V
V
OSC
SDIN
D/C
SCE
T2
SCLK
V
V
T1
T5
T4
V
T3
V
V
V
DD1
DD3
DD2
SS2
SS1
SS1
LCDIN
LCDOUT
LCDSENSE
65
SYMBOL
PINNING
102 pixels matrix LCD driver
221 and 222 negative power supply 1
158 and 173
16, 17, 157,
139 to 156
159 to 172
174 to 179
181 to 193
200 to 213
214 to 217
224 to 229
230 to 236
37 to 138
18 to 36
2 to 15
PAD
180
194
195
196
197
198
199
218
219
220
223
237
1
external reset input
(active LOW)
LCD row driver outputs
LCD row driver outputs
LCD column driver
outputs
LCD row driver outputs
LCD row driver outputs
supply voltage 1
supply voltage 3
supply voltage 2
oscillator input
serial data input
data/command input
chip enable input
(active LOW)
test 2 output
serial clock input
negative power supply 2
negative power supply 1
test 1 input
test 5 input
test 4 input
test 3 input/output
LCD supply voltage
voltage multiplier output
voltage multiplier
regulation input (V
dummy pads
DESCRIPTION
LCD
)
5
7
7.1
7.1.1
These pads output the row signals.
7.1.2
These pads output the column signals.
7.1.3
The 2 supply rails V
together.
7.1.4
V
voltage generator. Both have the same voltage and may
be connected together outside of the chip. V
supply for the rest of the chip. V
together with V
taken to respect the supply voltage range
(see Chapter 13).
If the internal voltage generator is not used then V
V
7.1.5
Positive power supply for the liquid crystal display.
An external LCD supply voltage can be supplied using the
V
and the internal voltage generator has to be programmed
to zero. If the PCF8812 is in Power-down mode, the
external LCD supply voltage has to be switched off.
7.1.6
Positive power supply for the liquid crystal display. If the
internal voltage generator is used, the two supply rails
V
external supply is used this pin must be left open-circuit.
7.1.7
V
regulation.
If the internal voltage generator is used then V
must be connected to V
is used then the V
connected to ground.
DD2
DD3
LCDIN
LCDIN
LCDSENSE
PIN FUNCTIONS
and V
must be connected to V
Pin functions
pad. In this case V
and V
ROW 0
COL 0
V
V
V
V
V
INPUT
SS1
DD1
LCDIN
LCDOUT
LCDSENSE
is the input of the internal voltage multiplier
DD3
LCDOUT
AND
TO
DD2
(V
are the supply voltage for the internal
: LCD
TO
TO
LCD
: LCD
V
LCDSENSE
V
and V
DD3
COL 101
:
SS1
ROW 64
SS2
must be connected together. If an
)
VOLTAGE MULTIPLIER REGULATION
POWER SUPPLY
:
LCDOUT
:
and V
POSITIVE POWER SUPPLY RAILS
POWER SUPPLY
NEGATIVE POWER SUPPLY RAILS
DD3
LCDOUT
can be let open-circuit or
but in this case care must be
COLUMN DRIVER OUTPUTS
ROW DRIVER OUTPUTS
DD1
SS2
. If a external supply voltage
DD1
has to be left open-circuit
or connected to power.
must be connected
can be connected
Product specification
PCF8812
DD1
LCDSENSE
is used as
DD2
and