CSTN LCD DRIVER IC UC1682s

Single-Chip, Ultra-Low Power
80COM x 312SEG Matrix
Passive Color LCD Controller-Driver
with VSTN Support
INTRODUCTION
UC1682s 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,
UC1682s contains all necessary circuits for
high-V LCD power supply, bias voltage
generation, temperature compensation, timing
generation and graphics data memory.
UC1682s employs UltraChips unique DCC
(Direct Capacitor Coupling) driver architecture
and LRM (Line Rate Modulation) gray-shade
modulation scheme to achieve near crosstalk
free images, with well balanced shading, vivid
colors, and natural-looking images while
supporting very fast Liquid Crystal material for
video applications.
With UC1682s 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
palm top devices or portable Instruments
FEATURE HIGHLIGHTS
- Single chip controller-driver for 80x104
matrix C-STN LCD with comprehensive
support for input format and color depth:
12-bit RGB: 4K color
16-bit RGB: 60.5K color (dithering)
- Support video rate CSTN applications.
- Two software-readable ID pins and two
MTP programmable 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 column
ordered display buffer RAM access.
- Support industry standard 3-wire, 4-wire
serial bus (S9, S8, S8uc) and 8-bit/4-bit
parallel bus (8080 or 6800).
- Special driver structure and gray shade
modulation scheme. Ultra-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.
- 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: 1.8V ~ 3.3V
VDD (analog) range: 2.5V ~ 3.3V
LCD VOP range: 5.3V ~ 14.5V (25oC)
- Available MTP trimming support precise
LCD contrast matching
- Available in gold bump dies:
Bump pitch(COM/SEG): 38M
Bump gap: 15M
Bump surface: 2,415M2