OM4085 Philips Semiconductors, OM4085 Datasheet - Page 3

• Manufacturer Part Number: OM4085
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: Philips Semiconductors

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SYNC
V LCD
V DD
OSC
V SS
SDA
CLK
SCL
5
12
4
3
6
11
2
1
OSCILLATOR
R
R
R
FILTERS
TIMING
INPUT
GENERATOR
LCD BIAS
POWER-
RESET
BLINKER
ON
CONTROLLER
I C-BUS
2
SELECTOR
SA0
VOLTAGE
LCD
10
CONTROLLER
Fig.1 Block diagram.
COMMAND
DECODER
DISPLAY
BP0
13
BACKPLANE
OM4085
OUTPUTS
BP2
14
BP1
15
BP3
16
SELECTOR
INPUT
BANK
DISPLAY SEGMENT OUTPUTS
SHIFT REGISTER
DISPLAY LATCH
24
S0 to S23
POINTER
DISPLAY
DATA
RAM
4 BITS
17 to 40
SELECTOR
A0
OUTPUT
ADDRESS
COUNTER
7
BANK
SUB-
A1
8
A2
MGD866
9