Data Brief

For further information contact your local STMicroelectronics sales office.

June 2007

Rev 2

1/4

4

STE2028

162 x 130 RGB single-chip true 262k color LCD controller driver

Features

(up to 1024 steps)

compensation over temperature

– 68000 & 8080 Parallel interfaces

(read and write)

– 3-lines and 4-lines SPI interface

(read and write)

– 3-lines 9-Bit serial interface

(read and write)

components.

generator

color images rendering (P=4).

on-foil (COF) applications

3.6V

1.95V

from 2.2V to 3.6V

20.8V

embedded memory

configuration parameters

smaller than 162x130 (such as 160x128)

Figure 1.

Block diagram

Description

The STE2028 is a low power CMOS LCD

controller driver featuring an extremely low

current consumption.

Designed to drive a 162 rows by 390 columns or

262k colors graphic display, with MLS (Multi-line-

selection) algorithm, the STE2028 provides all the

necessary functions in a single chip, including on-

chip LCD supply and bias voltage generators,

resulting in a minimum of externals components.

COLUMN

DRIVERS

ROW

DRIVERS

DISPLAY

CONTROL

LOGIC

DATA

REGISTER

COMMAND DECODER

OSC

C3 to C392

R0 to R161

TEST_OSCOUT

-VRNEG_SNS

!RES

VDDD

TIMING

GENERATOR

BIAS VOLTAGE

GENERATOR

HIGH VOLTAGE

GENERATOR

+VRPOS

SDA

D[0..7]

9 Bit SERIAL

D/!C

!CS

TEST_OSCIN

GRAY LEVELS GENERATOR

E

!RD

R/!W

!WR

3 & 4 Line SPI

Parallel 8080

Parallel 68K

SEL 0

SEL 1

-VCNEG

VDDI_AUX

VSSI_AUX

TEST_VREF

TEST_MODE

130 x 162 x 18 Bit

Display Data RAM

BUFFER

DDRAM Col Adr

DAC

DATA LATCH & GAMMA CORRECTION

MLS COLUMN DRIVING LOGIC

MLS ROW DRIVING

LOGIC

RESET

VDDB

OTP(Memory)

TE

SEL 2

-VRNEG

+VCPOS

+VRPOS_SNS

+VCPOS_SNS

-VCNEG_SNS

TEST_VC2POS

TEST

LR238

VDDA

VPP

TEST_VC2NEG

VCOM

SCL

VDDI

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