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NT3881DF-02 데이터시트 PDF




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부품번호 NT3881DF-02 기능
기능 Dot Matrix LCD Controller and Driver
제조업체 ETC
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NT3881DF-02 데이터시트, 핀배열, 회로
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




NT3881DF-02 pdf, 반도체, 판매, 대치품
Block Diagram
NT3881D
V1
V2
V3
V4
V5
VDD
GND
OSC1
OSC2
ADDRESS
8 INSTRUCTION 8 INSTRUCTION 7 COUNTER
REGISTER
(IR)
DECODER
7
TIMING
GENERATOR
7
3M
CL1
CL2
RS
R/W
7
E
DB7~DB4
4
I/O
BUTTER
8
DATA
REGISTER
(DR)
DB3~DB0
4
BUSY
FLAG
(BF)
77
CUR50R
ADDRESS
COURTER
DISPLAY DATA
RAM
(DD RAM)
80 X 8 BITS
16-BIT 16 COMMON
SHIFT
SIGNAL
16
COM1
|
REGISTER
DRIVER
COM16
87
8
8
CURSOR
/BLINK
CONTROLLER
CHARACTER
GENERATOR
RAM
(CG RAM)
64 X 8 BITS
CHARACTER
GENERATOR
ROM
(CG ROM)
40-BIT 40 SEGMENT 40 SEG1
LATCH
SIGNAL
|
CIRCUIT
DRIVER
SEG40
55
PARALLEL-TO-SERIAL
CONVERTER
40-BIT SHIFT REGISTER
D
4 V2.4

4페이지










NT3881DF-02 전자부품, 판매, 대치품
Absolute Maximum Ratings*
Power Supply Voltage (VDD) . . . . . . . . . . -0.3V to +0.7V
Power Supply Voltage(V1toV5).VDD -13.5V to VDD+0.3V
Input Voltage (VI) . . . . . . . . . . . . . . . -0.3V to VDD +0.3V
Operating Temperature (TOPR) . . . . . . . . -20°C to +75°C
Storage Temperature (TSTG) . . . . . . . -55°C to +125°C
! All voltage values are referenced to GND = 0V
! V1 to V5, must maintain VDD V1 V2 V3 V4 V5.
NT3881D
*Comments
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to this device.
These are stress ratings only. Functional operation of this
device at these or any other conditions above those
indicated in the operational sections of this specification is
not implied or intended. Exposure to the absolute
maximum rating conditions for extended periods may
affect device reliability.
DC Electrical Characteristics (VDD = 5.0V, GND = VEE = 0V, TA = 25°C)
Symbol
Parameter
Min. Typ. Max. Unit Conditions Applicable Pin
VIH1 "H" Level Input Voltage (1)
VIL1 "L" Level Input Voltage (1)
2.2 - VDD V
-0.3 - 0.8 V
DB0 - DB7, RS,
R/W, E
VIH2 "H" Level Input Voltage (2)
VIL2 "L" Level Input Voltage (2)
VDD -1.0
GND
-
-
VDD V
1.0 V
OSC1
VOH1
VOL1
"H" Level Output Voltage (1)
"L" Level Output Voltage (1)
2.4 -
-
V IOH = -0.25mA
DB0 - DB7
- - 0.4 V IOL = 1.2mA
(TTL)
VOH2
VOL2
"H" Level Output Voltage (2)
"L" Level Output Voltage (2)
0.9 VDD
-
- - V IOH = -0.04mA CL1, CL2, M, D
- 0.1 VDD V IOL = 0.04mA
(CMOS)
VCOM Driver Voltage Descending (COM)
-
- 2.9 V ID = 0.05mA
COM1 - 16
VSEG Driver Voltage Descending (SEG)
-
- 3.8 V ID = 0.05mA
SEG1 - 40
IIL Input Leakage Current
-1 - 1 µA VIN = 0 to VDD
-IP Pull-up MOS Current
50 125 250 µA VDD = 5V
RS, R/W,
DB0-DB7
IOP Supply Current Power Supply
Current
- 0.3 0.5 mA Rf oscillation,
from external
clock VDD=5V,
fOSC = fCP =
270KHz
VDD
7 V2.4

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