SED1500 Series
CMOS DOT MATRIX LCD CONTROLLER DRIVER
■ DESCRIPTION
The SED1500 Series is a dot matrix LCD driver CMOS LSI with the ability of alpha-numeric and graphic
display. The device stores the parallel data that is sent from the microcomputer in a built-in data RAM and
generates a liquid drive signal. The LSI can be connected directly to the 4-bit/8-bit microcomputer. The
SED1500 Series is suitable to applications involving low speed, large capacity. The device consumes only
a little current because it is operated by a low-frequency clock so that, by combining it with a CMOS
microcomputer unit, a battery driven, long life system can be built at low cost.
■ FEATURES
Low-power CMOS technology
On-chip CR oscillation circuit
•
•
•
•
•
•
•
•
•
Direct CPU interface .............................. 4/8 bits
Duty cycle .................. 1/7 to 1/16 (mask option)
Master/slave operation is supported
LCD voltage ......................................–3 to –10V
Single power supply .........................3.0 to 6.0V
Package.............................. QFP1-80 pin (FOA)
Built-in display data RAM .............. 42 × 2 bytes
Maximum ...................................... 672 dots
■ SED1500 Series
The capacity of the SED1500 Series is varied as follows with a duty of LCD multiplex drive.
Common-single series
Common-multi series
•
•
No. of COM
No. of SEG
output
No. of COM
No. of SEG
output
Duty
Type
Duty
Type
output
output
1/7
SED1507F
SED1500F
SED1501F
7
42
42
40
39
38
37
36
35
34
1/8
2
2
2
2
2
2
2
2
4
5
5
6
6
7
42
42
42
42
42
42
42
42
42
*
*
*
*
*
*
*
*
1/8
8
1/9
1/10
1/11
1/12
1/13
1/14
1/15
1/16
10
11
12
13
1/10
1/11
1/12
1/13
1/14
1/15
1/16
2
2
2
2
2
*
*
*
*
*
14
15
16
7
8
8
SED1502F
SED1503F
*1. The driver is open-ended by the cascade connection.
*2. Above-mentioned Duties are all available by the mask option. Please consult S-MOS marketing for availability.
307