Descriptions

The NT7070B is a dot matrix LCD driver & controller

LSI that is fabricated by low CMOS technology. It is

capable of displaying 1 or 2 lines with the 5 x 7 +

cursor format or 1 line with the 5 x 10 + cursor dots

formats.

特性 Features

n Internal Memory

-Character Generator ROM

-Character Generator RAM: 320 bits

-Display Data RAM: 80 x 8bits for 80 digits

n Power Supply Voltage: 2.7V~5.5V

n LCD Supply Voltage 3~10V(VDD -V5)

n CMOS Process

n 1/8 Duty, 1/11 Duty or 1/16 Duty: selectable

-(1/8 duty, 5 x 7 dots formal 1 line; 1/11 duty, 5 x

10 dots formal 1 line; 1/16 duty, 5 x 7 formal 2 line)

n Bare Chip, 128 LQFP Available

Applications

n Character type dot matrix LCD driver & controller.

n Internal driver : 16 common and 80 segment signal

output.

n Display character format; 5 x 7 dots + cursor, 5 x

10 dots + cursor.

n Easy interface with a 4 bit or 8 bit MPU.

n Display character pattern: refer to table 2-1,2-2.

n The special character pattern can be

programmable by Character Generator RAM

directly.

n A customer character pattern can be

programmable by mask option.

n Automatic power on reset function.

n It can drive a maximum 80 character by using the

NT7065B or NT7063B.

n It is possible to read both Character Generator

RAM and Display Data RAM from MPU.