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BP0 BP2 BP1 BP3
13 14 15 16
S0 to S39
40
17 to 56
5
V
BACKPLANE
OUTPUTS
DD
DISPLAY SEGMENT OUTPUTS
DISPLAY LATCH
R
R
R
LCD
VOLTAGE
SELECTOR
LCD BIAS
GENERATOR
SHIFT REGISTER
12
V
LCD
PCF8576
4
3
CLK
INPUT
BANK
SELECTOR
DISPLAY
RAM
40 x 4 BITS
OUTPUT
BANK
SELECTOR
TIMING
BLINKER
SYNC
DISPLAY
CONTROLLER
6
OSC
OSCILLATOR
POWER-
ON
DATA
POINTER
RESET
COMMAND
DECODER
11
V
SS
2
1
SUB-
ADDRESS
COUNTER
SCL
SDA
2
INPUT
FILTERS
I C - BUS
CONTROLLER
10
7
8
9
SA0
A0 A1 A2
MBK276
Fig.1 Block diagram (for VSO56 package; SOT190-1).
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NXP [ NXP ]
