Specifications

EPSON 5–1
SED1225 Series
SED1225
Series
OUTLINE
The SED1225 dot-matrix LCD Controller Driver receives
4-bit, 8-bit, or serial data from the microprocessor and
displays up to 36 characters, four user-defined characters,
and up to 120 symbols.
Up to 256 types of built-in character generator ROMs are
provided. Each character font has a 5×8-dot structure.
Also, the user-defined character RAM contains four
5×8-dot characters. In addition, a symbolic register can
be used for flexible symbol display. The Driver featuring
the very low power consumption can drive a handy
terminal unit in either Sleep or Standby mode with the
minimum power consumption.
FEATURES
• Built-in display data RAM
Can display up to 36 characters, 4 user-defined
characters, and 120 symbols.
• Built-in CGROM (for 256-character display),
CGRAM (for 4-character display), and symbol register
(for 120 symbol display)
• No. of display columns by lines
Normal mode: (12 columns plus 4 signal segments) ×
3 line + 120 symbols + 10 static symbols
Standby mode: 10 static symbols
• Built-in C&R oscillators
• Available external clock input
• High-speed MPU interfaces
Interface to both 68- and 80-series MPUs
Support of 4/8-bit interface
• Support of serial interface
• Character font: 5x8 dots
• Duty ratio: 1/18, 1/26
• Simple command setup
• Built-in LCD drive power circuit: Power amp and
regulator
• Built-in electronic controls
• Very low power consumption
30 µA (including the operating current of the built-in
power supply during normal operation)
10 µA (Static icon display during Standby operation
5 µA (Display off during Sleep operation)
• Power supplies
V
DD – Vss: –1.7 to –3.6 V
VDD – V5: –3.0 to –6.0 V
• Wide operating temperature range: Ta=-30 to +85°C
• CMOS process
• Package design
Chip (with gold bump): SED1225D✽B
TCP: SED1225T✽✽
• This IC package is not designed to have a radiation or
strong light resistance.