PCF8576 Philips Semiconductors, PCF8576 Datasheet - Page 4

• Manufacturer Part Number: PCF8576
• 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
FILTERS
R
R
R
TIMING
INPUT
GENERATOR
LCD BIAS
POWER-
RESET
BLINKER
Fig.1 Block diagram (for VSO56 package; SOT190-1).
ON
CONTROLLER
I C - BUS
2
SELECTOR
VOLTAGE
SA0
LCD
10
CONTROLLER
COMMAND
DECODER
DISPLAY
BP0
PCF8576
BACKPLANE
13
OUTPUTS
BP2
14
BP1
15
BP3
16
SELECTOR
INPUT
BANK
DISPLAY SEGMENT OUTPUTS
SHIFT REGISTER
DISPLAY LATCH
40 x 4 BITS
S0 to S39
DISPLAY
POINTER
DATA
RAM
40
17 to 56
SELECTOR
A0
OUTPUT
COUNTER
ADDRESS
BANK
7
SUB-
A1
8
A2
MBK276
9