SED1530 Series

1

SSC5000Series

Dot Matrix LCD Controller Driver

PF777-03

SED1530 Series

s DESCRIPTION

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.

The SED1532 can display the 65x200-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.

No external operation clock is required for RAM read/write operations. 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.

s FEATURES

q 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)

q RAM capacity: 65

× 132 = 8580 bits

q High-speed 8-bit microprocessor interface allowing direct connection to both the 8080 and 6800.

q Serial interface

q Many command functions: Read/Write Display Data, Display 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 Direction, Power Save

q Ultra Low Power Consumption

q Built-in Power Supply Circuit for LCD

q 133 Driver Output