King Billion Electronics Co., Ltd

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KD83

LCD Driver Series

October 31, 2003

2

V1.0

1. General Description

KD83 is a gray-scale LCD Segment Extender which, when used with KB’s MCU with LCD Segment

Extender interface, can expand the capacity of LCD driver. It is a 16 gray-scale, 4 gray-scale, and black

and white LCD Segment Driver. This chip interfaces with KB’s MCU with provisions of Segment

Extender Interface LFR and CCK. KB’s MCUs control KD83 through a command interface. The MCU

can read/write display patterns to graphic mode display RAM by first setting up the target address,

selecting the driver configuration, and then enabling the driver. KD83 can support five different LCD

configurations: 16, 32, 48, 64 and 80 COM selectable by command register. The KD83 uses some of the

memory as display RAM, while the memory not used for display can be access as general-purpose

memory.

2. Features

Graphic mode Gray-scale LCD Display 80 segment Extender.

Command mode interface.

Support 16 gray scale, 4 gray scale and Black/White LCD display.

5 LCD Configurations: 16, 32, 48, 64, or 80 COM LCD.

Operating Range:

2.4V ~ 3.6V

Dual Port display RAM: 5K Bytes

Spare RAM for general purpose.

3. Pin Description

KD83

1

2

3

4

5

6

7

8

51

52

53

54

55

56

57

58

SEG18

SEG17

SEG16

SEG15

SEG14

SEG13

SEG12

SEG11

SEG69

SEG68

SEG67

SEG66

SEG65

SEG64

SEG63

SEG62

Pin Name

Pin # I/O

Description

SEG[79..0]

41~101,

1~19

O LCD Segment Outputs.

LVP

20

I

Charge Pump Output. These input pins must wire with master IC respectively. That

means LVP with LVP, LVL5 with LVL5, …, LDL with LDL. Please refer to

application circuit.

LVL5

21

I LCD Bias Voltage 5

LVL3

22

I LCD Bias Voltage 3

LVL2

23

I LCD Bias Voltage 2

LFR

24

I LCD frame.