STE2002_06 Datasheet, PDF (1/61 Pages) STMicroelectronics – 81 x 128 single-chip LCD controller/driver

STE2002
81 x 128 single-chip LCD controller/driver
Features
■ 104 x 128 bits Display Data RAM
■ Programmable MUX rate
■ Programmable frame rate
■ X,Y Programmable carriage return
■ Dual partial display mode
■ Row by Row Scrolling
■ Automatic data RAM Blanking procedure
■ Selectable Input interface:
– I²C Bus Fast and Hs-mode (read and write)
– Parallel Interface (read and write)
– Serial Interface (read and write)
■ Fully Integrated oscillator requires no external
components
■ CMOS compatible inputs
■ Fully integrated configurable LCD bias voltage
generator with:
– Selectable multiplication factor (up to 6X)
– Effective sensing for High Precision Output
– Eight selectable temperature compensation
coefficients
■ Designed for chip-on-glass (COG) applications
■ Low power consumption, suitable for battery
operated systems
■ Logic supply voltage range from 1.7 to 3.6V
■ High voltage generator supply voltage range
from 1.75 to 4.2V
■ Display supply voltage range from 4.5 Vto
14.5V
■ Backward compatibility with STE2001
Description
The STE2002 is a low power CMOS LCD
controller driver. Designed to drive a 81 rows by
128 columns graphic display, provides all
necessary functions in a single chip, including on-
chip LCD supply and bias voltages generators,
resulting in a minimum of externals components
and in a very low power consumption. The
STE2002 features three standard interfaces
(Serial, Parallel & I²C) for ease of interfacing with
the host microcontroller.
Block diagram
CO to C127
R0 to R80 ICON
OSC_IN
OSC_OUT
VLCDIN
VLCDSENSE
VLCDOUT
RES
VSSAUX
VDD1,2
V_SS
SEL1,2
SA1
OSC
TIMING
GENERATOR
COLUMN
DRIVERS
ROW
DRIVERS
BIAS VOLTAGE
GENERATOR
CLOCK
DATA
LATCHES
SHIFT
REGISTER
HIGH VOLTAGE
GENERATOR
RESET
DATA
REGISTER
104 x 128
RAM
SCROLL
LOGIC
TEST
INSTRUCTION
REGISTER
DISPLAY
CONTROL
LOGIC
TEST_1_14
ICON_MODE
EXT
BSY_FLG
I2CBUS
PARALLEL
SERIAL
SOUT
SAO SCL SDA_IN SDA_OUT DB0 to DB7 E R/W PD/C SCE SDIN SCLK SD/C
December 2006
Rev 3
1/61
www.st.com
61