ST Sitronix ST7038 Manual

Sitronix
FEATURES
l 5 x 8 dot matrix possible
Support low voltage single power operation:
l
Ø
VDD, VDD2: 1.8 to 3.3V (typical)
l LCD Voltage Operation Range (V0/Vout)
Ø Programmable V0: 3 to 7V(V0)
Ø External power applied: Max. 12V(Vout)
l Interface
Ø 6800-4bit / 8bit interface
8080-4bit / 8bit interface
Ø
Ø 3-line serial interface
Ø 4-line serial interface
2
Ø I C interface
Support display mode:
l
Ø 8-COM x 100-SEG and 80 ICON
16-COM x 100-SEG and 80 ICON
Ø
Ø 24-COM x 80-SEG and 80 ICON
l 10,240-bit Character Generator ROM
(CGROM) stores 256 character fonts
GENERAL DESCRIPTION
ST7038 dot-matrix liquid crystal display controller can
display alphanumeric, Japanese kana characters and
symbols. It can be configured to drive a dot-matrix liquid
crystal display under the control of a microprocessor with
4/8-bit 6800-series or 8080-series, 3/4-line serial or fast I
interface. Since all the functions (such as display RAM,
character generator ROM/RAM and liquid crystal driver)
required for driving a dot-matrix liquid crystal display are
internally embedded in this chip, a minimal system can be
used with this controller/driver.
The Character Generator ROM of ST7038 has 256 5x8dot
cells and stores 256 different character fonts (5x8dot).
Product Name
ST7038-0B
ST7038
ST7038i
Ver 1.1
Character generator ROM Size
256
6800-4bit / 8bit interface
8080-4bit / 8bit interface
3-line/4-line serial interface
2
(without I C interface)
2
I C interface
Dot Matrix LCD Controller/Driver
l 64 x 8-bit Character Generator RAM
(CGRAM)
l 80 x 8-bit Display RAM (80 characters max.)
l 16 x 5 bit ICON RAM
l Variable instruction functions:
clear display, return home, display ON/OFF,
cursor ON/OFF, character blink, cursor shift,
display shift, double height font, ICON control
and character generation RAM
l Reset circuit through an external reset pin
l Internal oscillator or external clock
l Built-in low power consumption voltage
booster, regulator and follower circuit
l Built-in high-accuracy voltage regulator:
Programmable output range: 3~7V
Ø
l COM/SEG direction selectable by instruction
l Selectable CGRAM/CGROM size
l Package Type: COG
ST7038 is suitable for low voltage supply (1.8V to 3.3V) and
is perfectly suitable for any portable product which is driven
by the battery and requires low power consumption.
2
C The display resolution of ST7038 dot-matrix LCD driver can
be either 1-line x 20 characters, 2-line x 20 characters or
3-line x 16 characters with 80-bit ICON.
ST7038 works alone without extra cascaded drivers.
1/61
ST
ST7038
Support Character
English / Europe / Japan
2007/01/25