ST7522 Datasheet, PDF (1/45 Pages) Sitronix Technology Co., Ltd. – 17 x 96 Dot Matrix LCD Controller/Driver

Sitronix
ST
ST7522
17 x 96 Dot Matrix LCD Controller/Driver
OVERVIEW
The ST7522 family of dot matrix LCD drivers are
designed for the display of characters and graphics.
The drivers generate LCD drive signals derived from bit
mapped data stored in an internal RAM.
The drivers are available in two configurations
The ST7522 family drivers incorporate innovative
circuit design strategies to achieve very low power
dissipation at a wide range of operating voltages.
These features give the designer a flexible means of
implementing small to medium size LCD displays for
compact, low power systems.
The ST7522 which is able to drive 1 line of 6 Chinese
characters or 2 lines of 12 Chinese characters each
line
with two ST7522.
FEATURES
z Fast 8-bit MPU interface compatible with 80- and
68- family microcomputers and serial interface
z Clock synchronous serial interface
z Many command set
Display data Read/Write, display ON/OFF,
Normal/Reverse display mode, page address set ,
column address set , status read , display all
points ON/OFF, LCD bias set, electronic volume,
read/modify/write, segment driver direction select,
power saver, static indicator, adjustable OSC
frequency, booster input voltage select, follower
input voltage and amplified ratio selectable
z 4 static indicator and 96 icon available
z Total 118 (segment + common + static) drive sets
z Wide range of supply voltages
VDD – VSS：2.7 to 5.5 V
VDD – V5：3.5 to 7.0 V
VDD – VCAP3 ：3.5 to 7.0 V
z Low-power CMOS
z 64 level digital contrast control
Product
name
Clock frequency
On-Chip
External
ST7522D 1.2KHz,2.4KHz
(When VDD=3.0V)
2.8KHz
Number Number
of COM of SEG
Bias
Duty
17
96 1/5,1/6 1/17,1/33
Ver 1.0c
1/45
2002/07/10