STE2028

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Description (continued)

The different shades of gray are achieved with algorithms aimed to minimize the refresh

rate, current consumption and enable the use of new high speed CSTN (Color-Super

Twisted Nematics) fluids. A complete set of digital functions limits the host controller

overhead to manage complex display configurations and fast moving images data transfers

to driver RAM. STE2028 features five standard interfaces (3-lines Serial, 3-lines SPI, 4-lines

SPI, 68000 Parallel & 8080 parallel) for easy of interfacing with the host micro-controller.

Figure 2.

Functional block diagram

Note:

STMicroelectronics is neither licensed nor authorized to license its customers under one or

more patents held by Motif Corporation to use this integrated circuit in the manufacture of

liquid crystal display modules. Such license can be obtained by Motif Corporation.

Table 1.

Key features and benefits

Features

Benefits

Most integrated solution

Only four external caps

Low power solution

Competitive consumption figures

Fully integrated OTP

Flexible and integrated module maker parameter

settings with low area consumption

262k color and 65k color, embedded RAM,

130 RGB x 162

The best solution for low-cost 262k color displays

9-bit 3wires / 8-bit 3&4-wire

serial interfaces

8080&68K Parallel

interfaces

Status

register

Control

register

Display RAM

132rgb x 162 (18 Bits)

Grey levelsgenerators

Column drivers

Clocks

generator

High

voltage

generator

Bias

voltage

generator

MLS

logic

OTP

Instruction decoder

ROW

drivers

Gamma correction

9-bit 3wires / 8-bit 3&4-wire

serial interfaces

8080&68K Parallel

interfaces

Status

register

Control

register

Display RAM

130 rgbx162(18 Bits)

Grey levelsgenerators

Column drivers

Clocks

generator

High

voltage

generator

Bias

voltage

generator

MLS

logic

OTP

Instruction decoder

ROW

drivers

Gamma correction