Epson SED1278F/D Especificações descarregar pdf (Página 8)

EPSON 2–1

SED1200 Series

SED1200

Series

FEATURES

• Internal display RAM to hold 20 8-bit character codes.

• Internal character generator

– CGROM: 160 JIS ASCII characters.

– CGRAM: 4 user programmable 5×8 pixel

characters

– Font: 5×7 pixel characters plus the underline

cursor.

– JIS character set using SED1200F

0A/SED1200D0A

– ASCII character set using SED1200F0B/

SED1200D

• Internal LCD driver circuitry

– 50 segment driver lines

– 16 common driver lines

– Total size: Two lines of 10 characters each

(maximum). One line of 20 characters

(LCD panel dependent)

• CPU interface

– 4-bit CPU data bus

– 13 display control commands

• Low external component count

– Built in RC oscillator (using one external feedback

resistor)

– Built in LCD driver voltage-divider network.

• Implemented using low power CMOS technology

– TTL compatible CPU interface

• Power supply

– Logic: 2.5 V to 5.5 V

– LCD: 3.5 V to 5.5 V

• 80 pin QFP package SED1200F and chip (SED1200D)

OVERVIEW

The SED1200 is a Liquid Crystal Display (LCD) character

display controller-driver, capable of directly driving

displays as large as 2 lines of 10 5×8 pixel characters,

with a minimum of external components.

The SED1200 has an internal character generator (CG)

consisting of 160 JIS ASCII characters in ROM and four

user definable characters in RAM. The internal CG, a

versatile set of cursor and display control commands,

mean that the system CPU is only responsible for the

display data and commands, and not for the LCD display

itself.

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