HT46R652 datasheet(27/47 Pages) HOLTEK

27 / 47 page

HT46R652

Rev. 1.00

December 19, 2006

C O M 0 , C O M 1 , C O M 2

N o r m a l O p e r a t i o n M o d e

D u r i n g a R e s e t P u l s e

C O M 0 , C O M 1 , C O M 2

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

A l l L C D d r i v e r o u t p u t s

C O M 0

C O M 1

C O M 2 *

H A L T M o d e

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

V L C D

1 / 2 V L C D

V S S

N o t e : " * " O m i t t h e C O M 2 s i g n a l , i f t h e 1 / 2 d u t y L C D i s u s e d .

L C D s e g m e n t s O N

C O M 0 , 1 , 2 s i d e s a r e u n l i g h t e d

O n l y L C D s e g m e n t s O N

C O M 0 s i d e a r e l i g h t e d

O n l y L C D s e g m e n t s O N

C O M 1 s i d e a r e l i g h t e d

O n l y L C D s e g m e n t s O N

C O M 2 s i d e a r e l i g h t e d

L C D s e g m e n t s O N

C O M 0 , 1 s i d e s a r e l i g h t e d

L C D s e g m e n t s O N

C O M 0 , 2 s i d e s a r e l i g h t e d

L C D s e g m e n t s O N

C O M 1 , 2 s i d e s a r e l i g h t e d

L C D s e g m e n t s O N

C O M 0 , 1 , 2 s i d e s a r e l i g h t e d

A l l l c d d r i v e r o u t p u t s

LCD Driver Output - 1/3 Duty, 1/2 Bias, R/C Type

LCD Segments as Logic Outputs

The SEG0~SEG23 pins can also can be setup as logic outputs via a configuration options. Once an LCD segment is con-

figured as a logic output, the content of bit0 of the related segment address in the LCD RAM will appear on the segment.

Pins SEG0~SEG7 and SEG8~SEG15 are together byte optioned as logic outputs, SEG16~SEG23 are individually bit

optioned as logic outputs.

LCD Type

R Type

C Type

LCD Bias Type

1/2 bias

1/3 bias

1/2 bias

1/3 bias

VMAX

If VDD>VLCD, then VMAX connect to VDD,

else VMAX connect to VLCD

If VDD>

VLCD, then VMAX connect to VDD,

else VMAX connect to V1

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