Renesas PROM Programming Adapters PCA7438F-64A Specifikace stáhnout pdf (Strana 34)

Rev.2.40 Jun 14, 2004 page 34 of 56

38C1 Group

Fig. 33 LCD drive waveform (1/2 bias, 1/1 bias)

V

L3

V

L2

=V

L1

V

SS

V

L3

V

SS

C

O

M

0

C

O

M

1

C

O

M

2

C

O

M

3

SEG

0

C

O

M

3

C

O

M

2

C

O

M

1

C

O

M

0

COM

3

C

O

M

2

C

O

M

1

COM

0

V

L3

V

L2

=V

L1

V

SS

V

L3

V

SS

C

O

M

0

C

O

M

1

C

O

M

2

SEG

0

C

O

M

0

C

O

M

2

C

O

M

1

C

O

M

0

C

O

M

2

C

O

M

1

C

O

M

0

C

O

M

2

C

O

M

0

C

O

M

1

S

E

G

0

V

L

3

V

L

2

=

V

L

1

V

S

S

V

L

3

V

S

S

C

O

M

1

C

O

M

0

COM

1

COM

0

C

O

M

1

COM

0

COM

1

COM

0

C

O

M

0

S

E

G

0

V

L

3

V

L

2

=

V

L

1

=

V

S

S

V

L

3

V

S

S

I

n

t

e

r

n

a

l

l

o

g

i

c

L

C

D

C

K

t

i

m

i

n

g

1

/

4

d

u

t

y

Voltage level

O

F

FO

NO

F

FO

N

1

/

3

d

u

t

y

O

F

FO

NONO

F

FONOFF

1

/

2

d

u

t

y

O

F

FON O

F

FO

NO

F

FON OFFO

N

1

/

1

d

u

t

y

(

1

/

1

b

i

a

s

)

O

F

F

O

N

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 58 59

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