ST8024S

Ver 0.39

Page 2/27

2008/05/05

1.

FEATURES

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Number of LCD drive outputs: 240

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

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

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Low power consumption

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Low output impedance

(Segment mode)

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Shift clock frequency

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Ø

Ø

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Adopts a data bus system

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4-bit/8-bit parallel input modes are

selectable with a mode (MD) pin

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Automatic transfer function of an

enable signal

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Automatic counting function which, in

the chip selection mode, causes the

internal clock to be stopped by

automatically counting 240 bits of

input data

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Line latch circuits are reset when

/DISPOFF active

(Common mode)

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Shift clock frequency: 4 MHz (MAX.)

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Built-in 240-bit bi-directional shift

register (divisible into 120 bits x 2)

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Available in a single mode (240-bit

shift register) or in a dual mode

(120-bit shift register x 2)

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Ø

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The above 4 shift directions are

in-selectable

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Shift register circuits are reset when

/DISPOFF active

2.

DESCRIPTION

The ST8024S 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 ST8024S is good

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

high-resolution LCD.