SED1181DLA ETC, SED1181DLA Datasheet

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SED1181DLA

Manufacturer Part Number
SED1181DLA
Description
CMOS DOT MATRIX LCD CONTROLLER DRIVER
Manufacturer
ETC
Datasheet
1.SED1181DLA.pdf (16 pages)
DESCRIPTION
The SED1278 is a character LCD controller-driver, capable of driving displays as large as 2 lines of 8
characters (5
The SED1278 has an internal CGROM consisting of 240 characters (5
ASCII, and eight user-programmable characters in RAM.
The SED1278 has 40 segment output and 16 common output built-in. Thus, one chip is capable of displaying
up to 16 characters. The SED1278 can display one line of 48 characters using an SED1681F (80-bit output)
as an expansion segment driver.
The SED1278 is fabricated using a silicon gate CMOS technology process and features very low power
dissipation. This makes the device suitable for handheld and portable applications.
FEATURES
•
•
•
•
•
•
•
•
•
•
SYSTEM BLOCK DIAGRAM
Low-power CMOS technology
40 segment output
16 common output
Duty: 1/8 or 1/16 (set by command)
4/8-bit CPU data interface, TTL compatible
Two frame AC drive wave form
CGROM: .................................... 240 characters
CGRAM: ........................................ 8 characters
Display data RAM: ... 80
Recommended expansion segment driver:
SED1181F
SED1681F (80 output)
LA
8 pixels), with minimum external components.
(64 output)
CMOS DOT MATRIX LCD CONTROLLER DRIVER
CPU
CONTROL
DATA
8 bits (80 characters)
SED1278
287
16 COM
XSCL, LP
D0
•
•
•
•
•
•
40 SEG
Built-in power on power-on reset
Built-in RC oscillator
Built-in LCD driver voltage-divider network
TTL compatible CPU interface
Supply voltage ................... Logic: 4.5V to 5.5V
Package:
QFP5-80 pins (F
Al pad (D
20 CHAR
7) plus the underline cursor, JIS,
0A
, D
SED1181
0B
2 LINES
SED1278
, D
0A
, F
0C
0B
, D
, F
0D
LCD: 3.5V to 5.5V
0C
, D
, F
0G
0D
, D
, F
0H
0G
)
, F
0H
)

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SED1181DLA Summary of contents

Page 1

CMOS DOT MATRIX LCD CONTROLLER DRIVER DESCRIPTION The SED1278 is a character LCD controller-driver, capable of driving displays as large as 2 lines of 8 characters (5 8 pixels), with minimum external components. The SED1278 has an internal CGROM consisting ...

Page 2

SED1278 BLOCK DIAGRAM Instruction Decoder Instruction Register DB0 DB7 Data Register E R PIN CONFIGURATION SEG38 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 ...

Page 3

PIN DESCRIPTION Symbol No. of signals DB0 to DB7 XSCL COM1 to COM16 16 SEG1 to SEG40 ...

Page 4

SED1278 • DC Characteristics Parameter “H” level input voltage (1) “L” level input voltage (1) “H” level input voltage (2) “L” level input voltage (2) “H” level output voltage (1) “L” level output voltage (1) “H” level output voltage (2) ...

Page 5

Write cycle Parameter Enable cycle time Enable “H” level pulse width Enable rise/fall time RS, R/W setup time RS, R/W address hold time Data setup time Write data hold time • Timing Chart Read cycle RS R/W E DB0 to ...

Page 6

SED1278 DISPLAY COMMAND Parameter RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 CLEAR DISPLAY 0 CURSOR HOME 0 ENTRY MODE SET 0 DISPLAY ON/OFF 0 CURSOR/DISPLAY SHIFT 0 SYSTEM SET 0 SET CGRAM ADDRESS 0 SET DDRAM ADDRESS ...

Page 7

EXAMPLE OF APPLICATION (2 lines SED1278 COM1 16 COM16 SEG1 SEG40 D0 LP XSCL OSC1 OSC2 R f SED1278 is usually connected to 8-bit MPU via I/O ports. 20 characters) LCD 16 ...

Page 8

SED1278 PAD LAYOUT Pad size: 109 109 4,500 • • • • • • • • • • • • • • • • • • • • • • • (0,0) • • • ...

Page 9

PAD COORDINATES Pad No. Pad Name X 1 SEG22 2087 2 SEG21 1905 3 SEG20 1723 4 SEG19 1541 5 SEG18 1359 6 SEG17 1177 7 SEG16 995 8 SEG15 814 9 SEG14 633 10 SEG13 452 11 SEG12 ...

Page 10

SED1278 SED1278F /D CHARACTER FONT RAM ( RAM ( RAM ( RAM ( RAM ( RAM ( RAM ( RAM ...

Page 11

SED1278F /D CHARACTER FONT 0B 0B Higher 4-bit (D4 to D7) of Character Code (Hexadecimal RAM ( RAM ( RAM ( RAM ( RAM (5) ...

Page 12

SED1278 SED1278F /D CHARACTER FONT RAM ( RAM ( RAM ( RAM ( RAM ( RAM ( RAM ( RAM ...

Page 13

SED1278F /D CHARACTER FONT 0D 0D Higher 4-bit (D4 to D7) of Character Code (Hexadecimal RAM ( RAM ( RAM ( RAM ( RAM (5) ...

Page 14

SED1278 SED1278F /D CHARACTER FONT RAM ( RAM ( RAM ( RAM ( RAM ( RAM ( RAM ( RAM ...

Page 15

SED1278F /D CHARACTER FONT 0H 0H Higher 4-bit (D4 to D7) of Character Code (Hexadecimal RAM ( RAM ( RAM ( RAM ( RAM (5) ...

Page 16

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