Specifications

SED1230
Series
EPSON 6–1
SED1230 Series
• CR oscillation circuit (on-chip C and R)
• High-speed MPU interface
Interfacing with both 68 series and 80
series MPU
Interfacing in 4 bits/8 bits
• Serial interface
• Character font 5 × 7 dots
• Duty ratio 1/16 (SED1232, SED1233)
1/23 (SED1231)
1/30 (SED1230)
• Simple command setting
• Built-in liquid crystal driving power circuit
Power boosting circuit, power regulating circuit,
voltage follower × 4
• Built-in electronic volume function
• Low power consumption
100 µA Max. (In normal operation mode:
Including the operating current
of the built-in power supply)
20 µA Max. (In standby display mode)
• Power supply
V
DD - VSS (logic section): –2.4 V to –3.6 V
VDD - V5 (liquid crystal drive section)
: –5.0 V to –11.0 V
• Wide operating temperature range
Ta = -30 to 85°C
• CMOS process
• Delivery form: Chip SED123
*
D
*
B
, SED123
*
D
*
E
(Gold bump product)
SED123
*
D
*
A
, SED123
*
D
*
C
(A1 pad product)
TCP SED123
*
T
**
• This IC is not designed with a protection against
radioactive rays.
OVERVIEW
The SED1230 Series is a dot matrix LCD controller
driver for character display, and can display a maximum
of 48 characters, 4 user-defined characters, and a maxi-
mum of 64 symbols by means of 4-bit, 8-bit or serial data
sent from a microcomputer.
A built-in character generator ROM is prepared for 256
character types, and each character font consists of 5 × 7
dots. A user-defined character RAM for four characters
of 5 × 7 dots are incorporated, and a symbol register is
also incorporated. With these, it is possible to apply this
Series to display with a high degree of freedom. This
Series can operate handy units with a minimum power
consumption by means of its low power consumption
and standby mode.
The SED1230 Series are classified into SED1230,
SED1231, SED1232, and SED1233 depending on the
duty of use and the number of display columns.
FEATURES
• Built-in display RAM
48 characters + 4 user-defined characters + 64 sym-
bols
• CG ROM (for up to 256 characters), CG RAM (4
characters), and symbol register (64 symbols)
• Number of display columns × number of lines
(12 columns + 1 column for signal) × 4 lines + 52
symbols: SED1230
(12 columns + 1 column for signal) × 3 lines + 52
symbols: SED1231
(12 columns + 1 column for signal) × 2 lines + 52
symbols: SED1232
16 columns × 2 lines + 64 symbols: SED1233