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NT3881D fiches techniques PDF

ETC - Dot Matrix LCD Controller and Driver

Numéro de référence NT3881D
Description Dot Matrix LCD Controller and Driver
Fabricant ETC 
Logo ETC 





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NT3881D fiche technique
NT3881D
Dot Matrix LCD Controller and Driver
Features
! Internal LCD drivers
16 common signal drivers
40 segment signal drivers
(can be externally extended to 400 segments
using NT3882)
! Maximum display dimensions
40 characters * 2 lines or
80 characters * 1 line
! Interfaces with 4-bit or 8-bit MPU
! Versatile display functions provided on chip:
Display Clear, Cursor Home, Display ON/OFF,
Cursor ON/OFF, Character Blinking, Cursor
Shift, and Display Shift
! Three duty factors, selected by PROGRAM:
1/8, 11/11, and 1/16
! Displays Data RAM (DD RAM): 80 X 8 bits
(displays up to 80 characters)
! Character Generator RAM (CG RAM):
64 X 8 bits for general data,
8 5 X 8 programmable dot patterns, or
4 5 X 10 programmable dot patterns
! Low voltage reset
! NOVATEK Identification code
! Bonding option for A-type and B-type waveform
! Character Generator ROM (CG ROM):
3 kinds of CG ROM sizes:
192 characters:
160 5 X 8 dot patterns
32 5 X 10 dot patterns
240 characters:
192 5 X 8 dot patterns
48 5 X 10 dot patterns
256 characters:
192 5 X 8 dot patterns
64 5 X 10 dot patterns
Custom CG ROM is also available
! Built-in power-on reset function
! Logic power supply: single +5V supply
! LCD driver power supply: V1 - V5
(VDD+0.3 - VDD-13.5)
! Three oscillator operations
(Freq. = 250KHz - 270KHz):
Internal oscillation
Ceramic resonator
External clock
! CMOS Process
! Available in 80-pin QFP or in CHIP FORM
General Description
The NT3881D is a dot matrix LCD controller and driver
LSI that can operate with either a 4-bit or an 8-bit
microprocessor (MPU). NT3881D receives control
character codes from the MPU, stores them in an internal
RAM (up to 80 characters), transforms each character
code into a 5 X 7, 5 X 8, or 5 X 10 dot matrix character
pattern, and then displays the codes on the LCD panel.
The built-in Character Generator ROM consists of 256
different character patterns.
The NT3881D also contains Character Generator RAM
where the user can store 8 different character patterns at
run time. These memory features make character display
flexible. NT3881D also provides many display instructions
to achieve versatile LCD display functions. The NT3881D
is fabricated on a single LSI chip using the CMOS
process, resulting in very low power requirements.
With several NT3882 driver ICs connected to the
NT3881D, up to 80 characters can be displayed.
1 V2.4

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