SED1530 Series
tions. Accordingly, this driver can be operated with a minimum
current consumption and its on-board low-current-consumption
liquid crystal power supply can implement a high-performance
handy display system with a minimum current consumption and a
smallest LSI configuration.
Two types of SED1530 series are available: one in which common
outputs are arranged on a single side and the other in which common
outputs are arranged on both sides.
OVERVIEW
The SED1530 series is a single-chip LCD driver for dot-matrix
liquid crystal displays (LCD’s) which is directly connectable to a
microcomputer bus. It accepts 8-bit serial or parallel display data
directly sent from a microcomputer and stores it in an on-chip
display RAM. It generates an LCD drive signal independent of
microprocessor clock.
The use of the on-chip display RAM of 65 × 132 bits and a one-to-
one correspondence between LCD panel pixel dots and on-chip
RAM bits permits implementation of displays with a high degree of
freedom.
As a total of 133 circuits of common and segment outputs are
incorporated, a single chip of SED1530 series can make 33 × 100-
dot (16 × 16-dot kanji font: 6 columns × 2 lines) displays, and a single
chip of SED1531 can make 65 × 132-dot (kanji font: 8 columns x 4
lines) displays when the SED1531 is combined with the common
driver SED1635.
FEATURES
• Direct RAM data display using the display RAM. When
RAM data bit is 0, it is not displayed. When RAM data bit
is 1, it is displayed. (At normal display)
• RAM capacity: 65 × 132 = 8580 bits
• High-speed 8-bit microprocessor interface allowing direct
connection to both the 8080 and 6800.
• Serial interface
The SED1532 can display the 65 × 200-dot (or 12-column by 4-line
Kanji font) area using two ICs in master and slave modes. As an
independent static indicator display is provided for time-division
driving, the low-power display is realized during system standby
and others.
• Many command functions: Read/Write Display Data, Dis-
play ON/OFF, Normal/Reverse Display, Page Address Set,
Set Display Start Line, Set Column Address, Read Status,
All Display ON/OFF, Set LCD Bias, Electronic contrast
Controls, Read Modify Write, Select Segment Driver Direc-
tion, Power Save
No external operation clock is required for RAM read/write opera-
• Series specifications (in cases of chip shipments)
Type 1 [VREG (Built-in power supply regulating voltage)
Temperature gradient: -0.2% / °C]
Name
Duty
1/33
1/33
1/65
1/65
LCD bias
1/5, 1/6
1/5, 1/6
1/6, 1/8
1/6, 1/8
Segment driver COM driver Display area Remarks
✽
✽
SED1530D0
100
100
132
100
33
33
0
33 × 100
33 × 100
65 × 132
65 × 200
COM single-side layout
SED1530DA
COM dual-side layout
✽
SED1531D0
SED1532D0
SED1635 is used as the COM.
COM single-side, right-hand layout
✽
✽
33
SED1532DB
SED1535DA
1/65
1/35
1/6, 1/8
1/5, 1/6
100
98
33
35
65 × 200
35 × 98
COM single-side, left-hand layout
COM both-side layout
✽
Type 2 [VREG Temperature gradient: 0.00% / °C]
Name
Duty
1/33
1/65
1/17
1/9
LCD bias
1/5, 1/6
1/6, 1/8
1/5
Segment driver COM driver Display area Remarks
✽
✽
✽
✽
SED1530DF
SED1532DE
SED1533DF
SED1534DE
100
100
116
124
33
33
17
9
33 × 100
65 × 200
17 × 116
9 × 124
COM both-side layout
COM single-side, right-hand layout
COM both-side layout
1/5
COM single-side layout
Note: The SED1530 series has the following subcodes depending on their shapes. (The SED1530 examples are given.)
SED1530T : TCP (The TCP subcode differs from the inherent chip subcode.)
**
SED1530D
: Bear chips
SED1530D
SED1530D
A
: Aluminum pad
: Gold bump
**
*
*
B
• Wide operating temperature range:
Ta = -40 to 85°C
• On-chip LCD power circuit: Voltage booster, voltage
regulator, voltage follower × 4.
• CMOS process
• Package: TCP and bare chip
• Non-radiation-resistant design
• On-chip electronic contrast control functions
• Ultra low power consumption
• Power supply voltages:
V
DD - VSS -2.4 V to -6.0 V
DD - V5 -4.5 V to -16.0 V
V
EPSON
5–1
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