HT46C64 datasheet(26/47 Pages) HOLTEK

26 / 47 page

HT46R64/HT46C64

Rev. 1.40

September 21, 2004

C O M 0

C O M 1

C O M 2

C O M 3

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

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

V A

V B

V C

V S S

V A

V B

V C

V A

V B

V C

V A

V B

V C

V A

V B

V C

N o t e : 1 / 4 d u t y , 1 / 3 b i a s , C t y p e : " V A " 3 / 2 V L C D , " V B " V L C D , " V C " 1 / 2 V L C D

1 / 4 d u t y , 1 / 3 b i a s , R t y p e : " V A " V L C D , " V B " 2 / 3 V L C D , " V C " 1 / 3 V L C D

LCD Driver Output

The LVR includes the following specifications:

· The low voltage (0.9V~V

LVR) has to remain in their

original state to exceed 1ms. If the low voltage state

does not exceed 1ms, the LVR will ignore it and do not

perform a reset function.

· The LVR uses the

²OR² function with the external RES

signal to perform chip reset.

The relationship between VDD and VLVR is shown below.

Note: VOPR is the voltage range for proper chip

operation at 4MHz system clock.

5 . 5 V

3 . 0 V

2 . 2 V

0 . 9 V

V D D

V O P R

V L V R

5 . 5 V

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