PCF8578U-2(1998) Ver la hoja de datos (PDF) - Philips Electronics

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PCF8578U-2
(Rev.:1998)

LCD row/column driver for dot matrix graphic displays

Philips Electronics 

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R0

a

f

gb

e

c

R7

d dp

R8

LCD

PCF8578: Segment Driver

Application

one line of 24 digits 7 segment

one line of 12 digits star-burst

(mux 1:16)

Total: 384 segments

R15

1

12

(Using 1:16 mux, the first C16

C17

character data must be

loaded in bank 0 and 1

starting at byte number 16)

0

DISPLAY

RAM

PCF8578

16 17

,,,,,, FREE RAM

ALTERNATE DISPLAY BANK (1)

ALTERNATE DISPLAY BANK

1-byte

C39

39

,, Bank

0

,,,,,, 1

a LSB

b

f

g

c

e

d

dp MSB

2

3

MLB423

(1) Can be used for creating blinking characters.

Fig.23 Segment driver application for up to 384 segments.

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