CSTN LCD DRIVER IC UC1698u

Single-Chip, 160COM x128RGB Matrix
Passive Color LCD Controller-Driver
with VSTN Support
INTRODUCTION
UC1698u is an advanced high-voltage mixedsignal
CMOS IC, specially designed for the
display needs of low power hand-held devices.
In addition to low power COM and SEG drivers,
UC1698u contains all necessary circuits for
high-V LCD power supply, bias voltage
generation, temperature compensation, timing
generation, and graphics data memory.
UC1698u employs UltraChips unique DCC
(Direct Capacitor Coupling) driver architecture
and LRM (Line Rate Modulation) gray-shade
modulation scheme to achieve well balanced
shading, vivid colors, and natural-looking images
while supporting very fast Liquid Crystal material
for video applications.
With UC1698u, LCD makers can now achieve
TFT-like image quality, support video applications
while maintaining the same STN advantages in
power consumption, unit cost, ease of
customization and production flexibility.
MAIN APPLICATIONS
Cellular Phones and other battery operated
hand held devices or portable Instruments
FEATURE HIGHLIGHTS
Single chip controller-driver for 160x128
matrix C-STN LCD with comprehensive
support for input format and color depth:
12-bit RGB: 4K-color
16-bit RGB: 64K-color
Support video rate CSTN applications.
Window-write, window-skip functions to
support flexible video applications such as
OSD, dynamic service provider screen
saver for cell phone and others.
ID pin (ID1)-switched input data sets (D[7:0]
or D[0, 2, 4, 6, 8, 10, 12, 14]) for 8-bit mode.
One ID pin (ID0) plus two programmable ID
flags, totally 4 software-readable ID bits to
support configurable vender identification.
Partial scroll function and programmable
data update window to support flexible
manipulation of screen data.
Support both row-ordered and columnordered
display buffer RAM access.
Support industry standard 4-wire, 3/4-wire,
and 3-wire serial buses (S8, S8uc, S9) and
16-bit/8-bit parallel buses (8080 or 6800).
Special driver structure and gray shade
modulation scheme. Low power
consumption under all display patterns.
No power consumption or image quality
penalty when used with video rate CSTN.
Fully programmable Mux Rate, partial
display window, Bias Ratio and Line Rate
allow many flexible power management
options.
Four software programmable temperature
compensation coefficients.
Software programmable, self-configuring
10x charge pump.
Flexible data addressing/mapping schemes
to support wide ranges of software models
and LCD layout placements.
Pad layouts support COG applications.
VDD (digital) range: 1.8 V ~ 3.3V
VDD (analog) range: 2.8 V ~ 3.3V
LCD VOP range: 6.15V ~ 18V
Available MTP trimming supports precise
LCD contrast matching.
Available in gold bump dies:
COM/SEG bump information
Bump pitch: 31 M
Bump gap: 13.5 M
Bump surface: 2013 M2