ST8024

Ver 2.1

Page 2/28

2009/08/19

1

FEATURES

Number of LCD drive outputs: 240

Supply voltage for LCD drive: +15.0 to +30.0 V

Supply voltage for the logic system: +2.5 to +5.5 V

Low power consumption

Low output impedance

(Segment mode)

Shift clock frequency

Adopts a data bus system

4-bit/8-bit parallel input modes are

selectable with a mode (MD) pin

Automatic transfer function of an

enable signal

Automatic counting function which, in

the chip selection mode, causes the

internal clock to be stopped by

automatically counting 240 bits of

input data

Line latch circuits are reset when

/DISPOFF active

(Common mode)

Shift clock frequency: 4 MHz (MAX.)

Built-in 240-bit bi-directional shift

register (divisible into 120 bits x 2)

Available in a single mode (240-bit

shift register) or in a dual mode

(120-bit shift register x 2)

The above 4 shift directions are

pin-selectable

Shift register circuits are reset when

/DISPOFF active

2

DESCRIPTION

The ST8024 is a 240-output segment/common driver IC suitable for driving large/medium scale

dot matrix LCD panels, and is used in personal computers/work stations. The ST8024 is good

both as a segment driver and a common driver, and it can create a low power consuming,

high-resolution LCD.