NT3881DF-02 ETC [List of Unclassifed Manufacturers], NT3881DF-02 Datasheet

NT3881DF-02

Manufacturer Part Number

NT3881DF-02

Description

Dot Matrix LCD Controller and Driver

Manufacturer

ETC [List of Unclassifed Manufacturers]

Datasheet

1.NT3881DF-02.pdf (29 pages)

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Features

! Internal LCD drivers

! Maximum display dimensions

! Interfaces with 4-bit or 8-bit MPU

! Versatile display functions provided on chip:

! Three duty factors, selected by PROGRAM:

! Displays Data RAM (DD RAM): 80 X 8 bits

! Character Generator RAM (CG RAM):

! Low voltage reset

! NOVATEK Identification code

! Bonding option for A-type and B-type waveform

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

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.

(displays up to 80 characters)

16 common signal drivers

40 segment signal drivers

(can be externally extended to 400 segments

using NT3882)

40 characters * 2 lines or

80 characters * 1 line

Display Clear, Cursor Home, Display ON/OFF,

Cursor ON/OFF, Character Blinking, Cursor

Shift, and Display Shift

1/8, 11/11, and 1/16

64 X 8 bits for general data,

8 5 X 8 programmable dot patterns, or

4 5 X 10 programmable dot patterns

(MPU).

NT3881D

receives

control

Dot Matrix LCD Controller and Driver

! Character Generator ROM (CG ROM):

! Built-in power-on reset function

! Logic power supply: single +5V supply

! LCD driver power supply: V

! Three oscillator operations

! CMOS Process

! Available in 80-pin QFP or in CHIP FORM

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.

3 kinds of CG ROM sizes:

Custom CG ROM is also available

(Freq. = 250KHz - 270KHz):

192 characters:

240 characters:

256 characters:

• Internal oscillation

• Ceramic resonator

• External clock

+0.3 - V

160 5 X 8 dot patterns

192 5 X 8 dot patterns

-13.5)

5 X 10 dot patterns

- V

NT3881D

V2.4

Related parts for NT3881DF-02

NT3881DF-02 Summary of contents

Page 1

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 ...

Page 2

... UM3881DF 72 NT3881DF ...

Page 3

Pad Configuration SEG22 1 SEG21 2 SEG20 3 SEG19 4 SEG18 5 SEG17 6 SEG16 7 SEG15 8 SEG14 9 10 SEG13 SEG12 11 SEG11 12 SEG10 13 SEG9 14 SEG8 15 SEG7 16 SEG6 17 SEG5 18 SEG4 19 ...

Page 4

Block Diagram VDD GND OSC1 OSC2 8 INSTRUCTION REGISTER (IR R/W E I/O BUTTER 8 DATA REGISTER (DR) DB7~DB4 4 DB3~DB0 4 BUSY FLAG (BF) ADDRESS COUNTER 7 8 INSTRUCTION 7 DECODER 7 ...

Page 5

Pin and Pad Descriptions Pin and Pad No. Designation SEG22 - SEG1 24, 25 OSC1, OSC2 CL1 32 CL2 33, 81 VDDB, VDDA 23 GND ...

Page 6

Functional Description The NT3881D is a dot-matrix LCD controller and driver LSI. It operates with either a 4-bit or an 8-bit microprocessor (MPU). The NT3881D receives both instructions and data from the MPU. Some instructions set operation modes, such as ...

Page 7

Absolute Maximum Ratings* Power Supply Voltage ( -0.3V to +0.7V DD Power Supply Voltage(V toV ). Input Voltage ( ...

Page 8

DC Electrical Character (continued) Symbol Parameter External Clock Operation External Clock Operating f CP Frequency External Clock Duty Cycle t DUTY External Clock Rise Time t RCP External Clock Fall Time t FCP Internal Clock Operation (RC Oscillator) Oscillator Frequency ...

Page 9

AC Characteristics (continued) Write Cycle (V = 5.0V, GND = V DD Symbol Parameter Enable Cycle Time t CYCE Enable "H" Level Pulse Width t WHE Enable Rise/Fall Time RS, R/W Setup Time t AS ...

Page 10

Timing Waveforms Read Operation RS R/W E DB0~DB7 Write Operation V IH1 RS V IL1 R DB0 ~ DB7 V IH1 V IL1 WEM V IH1 V IL1 IH1 V ...

Page 11

Timing Waveforms (continued) Interface Signals with Segment Driver LSI 0 CLK1 CLK2 0 Figure 3. Sending Data to Segment Driver LSI NT3882 Interface Signals with Segment Driver LSI (continued) 0. 0.1ms ...

Page 12

B. Internal Oscillator (With Rf Resistor) OSC1 Rf: 91kohm + 2% C. External Clock Operation OSC1 PULSE INPUT Note 2 : Input/Output Terminals: A. Input Terminal Applicable Terminal : E (No Pull Up MOS) Applicable Terminals: RS, R/W (with Pull ...

Page 13

B. Output Terminal Applicable Terminals: CL1, CL2 I/O Terminal Applicable Terminals: DB0 to DB7 V DD PULL UP MOS PMOS V DD PMOS NMOS V DD PMOS V DD PMOS NMOS NMOS 13 NT3881D ENABLE DATA (OUTPUT ...

Page 14

Table 1. Correspondence between Character Codes and Character Patterns (NOVATEK Standard NT3881D-01) 14 NT3881D V2.4 ...

Page 15

Table 2. Correspondence between Character Codes and Character Patterns (NOVATEK Standard NT3881D-02) 15 NT3881D V2.4 ...

Page 16

Instruction Set Instruction RS RW DB7 Display Clear Display/ Cursor Home Entry Mode Set Display ON/OFF Display Cursor Shift Function Set RAM ...

Page 17

Instruction Set (continued) Instruction RS RW DB7 I Increment Display Shift Display Cursor Display Cursor Blink On S/C ...

Page 18

Interface to LCD (1) Character Font and Number of Lines The NT3881D provides dot character font 1-line mode dot character font 1-line mode and dot character font 2-line ...

Page 19

X 10 Font - 8 character X 1 line (1/11 duty cycle, 1/4 bias) COM1 COM8 NT3881D SEG1 SEG40 COM11 COM9 ( Font - 8 character X 2 lines (1/16 duty cycle, 1/5 bias) COM1 ...

Page 20

X 8 Font - 16 character X 1 line (1/16 duty cycle, 1/5 bias) COM1 COM8 SEG1 NT3881D SEG40 COM16 COM9 LCD PANEL 20 NT3881D V2.4 ...

Page 21

Bias Power Connection NT3881D provides 1/4 or 1/5 bias for various duty cycle applications. The power division voltage is described in the following table. The connection of NT3881D, power supply, and resistors are also shown as follows: Power Division ...

Page 22

LCD Waveform A-type, 1/8 Duty Cycle, 1/4 Bias COM1 A-type, 1/11 Duty Cycle, 1/4 Bias COM1 ...

Page 23

B-type, 1/8 Duty Cycle, 1/4 Bias COM1 (V3 Frame B-type, 1/11 Duty Cycle, 1/4 Bias COM1 (V3 1Frame B-type, 1/16 Duty Cycle, 1/5 ...

Page 24

Application Circuit (for reference only C16 S1 - S40 D CL2 CL1 NT3881D GND LCD PANEL S1 - S40 DL1 DR2 CL2 DL2 CL1 DR1 ...

Page 25

Bonding Diagram Substrate Connect Pad window area: 120 m X ...

Page 26

Bonding Dimensions Pad No. Designation 1 SEG22 2 SEG21 3 SEG20 4 SEG19 5 SEG18 6 SEG17 7 SEG16 8 SEG15 9 SEG14 10 SEG13 11 SEG12 12 SEG11 13 SEG10 14 SEG9 15 SEG8 16 SEG7 17 SEG6 18 ...

Page 27

... Ordering Information Part No. NT3881DH-01 NT3881DF-01 NT3881DH-02 NT3881DF-02 Package CHIP FORM 80L QFP/B-type waveform CHIP FORM 80L QFP/B-type waveform 27 NT3881D Remarks Refer to Table 1 Refer to Table 1 Refer to Table 2 Refer to Table 2 V2.4 ...

Page 28

Package Information QFP 80L Outline Dimensions See Detail F Seating Plane Symbol Notes: 1. Dimensions D & not include resin fins. 2. Dimensions ...

Page 29

Product Spec. Change Notice Version B-type waveform modified(Page 23 , Document mistake 2.4 corrected) 2.3 PAD 33 VDDB,PAD 81 VDDA modified( Page 5, 24) 2.2 Updated Page 16. 2.1 Updated all diagrams. 2.0 Modified Page1 1.0 NEW SPEC NT3881 Specification ...

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