NT7501 Datasheet, PDF (1/38 Pages) List of Unclassifed Manufacturers – 33 X 100 RAM-Map LCD Controller/Driver

NT7501
33 X 100 RAM-Map LCD Controller/Driver
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. (In normal display mode)
! RAM capacity: 65 X 132 = 8580 bits
! Many command functions: Read/Write Display Data,
Display ON/OFF, Normal/Reverse Display, Page
Address Set, Set Display Start Line, Set LCD Bias,
Electronic contrast Controls, Read Modify Write, Select
Segment Driver Direction and Power Save
General Description
The NT7501 is a single-chip LCD driver for dot-matrix liquid
crystal displays, 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 a LCD drive signal
independent of the microprocessor clock.
The set of the on-chip display RAM of 65 X 132 bits, and a
one-to-one correspondence between the LCD panel pixel
dots and the on-chip RAM bits, permits implementation of
displays with a high degree of freedom.
! High-speed 8-bit microprocessor interface allowing direct
connection to both the 8080 and 6800
! Serial interface
! Single supply operation, 2.4 - 3.5V
! Maximum 9V LCD driving output voltage
! 2X / 3X / 4X on chip DC-DC converter
! Voltage regulator
! Voltage follower (LCD bias: 1/5 or 1/6)
! On chip oscillator
As a total of 133 circuits of common and segment outputs
are incorporated, a single chip of NT7501 can make 33 X
100 dots displays.
No external operation clock is required for RAM read/write
operations. Accordingly, this driver can be operated with
minimum current consumption and its on-board low-current-
consumption liquid crystal power supply can implement a
high-performance handy display system with minimal current
consumption and a minute LSI configuration.
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