Specifications

EPSON 10–1
SED1280
SED1280
FEATURES
• LCD controller
• 80-byte, 80-character display data RAM
• Character generator ROM
– 240, 5 × 10-pixel characters
• Character generator RAM
– 64 bytes
– Eight selectable 5 × 7-pixel or 5 × 8-pixel
characters.
– Four selectable 5 × 10-pixel or 5 × 11-pixel
characters
• Outputs
– 40 segment outputs
– 16 common outputs
• Modes
• Key matrix scan controller
• Eight key-scan outputs
• Ten key-scan inputs
• Can control an 8 × 10 key matrix.
• LED controller
• Five LED driver outputs
• Eight LED driver commons
• Can control a 5 × 8-LED matrix
• I/O ports
• Three input ports
• Two output ports
• Serial microcontroller interface
• Single 5 V supply
• 100-pin QFP5
OVERVIEW
The SED1280 is an enhanced version of the SED1278
dot-matrix LCD controller. In addition to the SED1278
functionality, the SED1280 also incorporates a key-
matrix controller, LED drivers and additional input and
output ports.
The SED1280 comprises the SED1278 core, display data
and character generator RAM, character generator ROM,
LCD segment and common drivers, LED-matrix and
key-matrix inputs and outputs, extended input and output
ports and a serial microcontroller interface. The SED1280
operates from a 5 V supply and is available in 100-pin
QFP5s.
Display
Number of Character
type
Duty SED1181F configuration
common drivers (columns × rows)
One line 1/8 or 0 8 × 1
1/11 6 80 × 1
Two lines 1/16 0 8 × 2
3 40 × 4