ST
Sitronix
FEATURES
5 x 8 dot matrix possible
Support low voltage single power operation:
VDD, VDD2: 1.8 to 3.3V
ST7038
Dot Matrix LCD Controller/Driver
64 x 8-bit Character Generator RAM
(CGRAM)
80 x 8-bit Display RAM (80 characters max.)
16 x 5 bit ICON RAM
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
Reset circuit through an external reset pin
Internal oscillator or external clock
Built-in low power consumption voltage
booster, regulator and follower circuit
Built-in high-accuracy voltage regulator:
Programmable output range: 3~7V
COM/SEG direction selectable by instruction
Selectable CGRAM/CGROM size
Package Type: COG
LCD Voltage Operation Range (V0/Vout)
Programmable V0: 3 to 7V(V0)
External power applied: Max. 12V(Vout)
Interface
6800-4bit / 8bit interface
8080-4bit / 8bit interface
3-line serial interface
4-line serial interface
2
I C interface
Support display mode:
8-COM x 100-SEG and 80 ICON
16-COM x 100-SEG and 80 ICON
24-COM x 80-SEG and 80 ICON
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
2
4/8-bit 6800-series or 8080-series, 3/4-line serial or fast I C
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).
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.
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.
Product Name
ST7038-0B
Character generator ROM Size
256
Support Character
English / Europe / Japan
ST7038
6800-4bit / 8bit interface
8080-4bit / 8bit interface
3-line/4-line serial interface
(without I
2
C interface)
I
2
C interface
ST7038i
Ver 1.3
1/63
2008/05/27
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
