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Numéro de référence | SED1681F | ||
Description | CMOS DOT MATRIX LCD CONTROLLER DRIVER | ||
Fabricant | ETC | ||
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1 Page
SED1278
CMOS DOT MATRIX LCD CONTROLLER DRIVER
s 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 of 240 characters (5 × 7) plus the underline cursor, JIS,
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.
s FEATURES
• 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 × 8 bits (80 characters)
• Recommended expansion segment driver:
SED1181FLA (64 output)
SED1681F (80 output)
• 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
LCD: 3.5V to 5.5V
• Package:
QFP5-80 pins (F0A, F0B, F0C, F0D, F0G, F0H)
Al pad (D0A, D0B, D0C, D0D, D0G, D0H)
s SYSTEM BLOCK DIAGRAM
CPU
DATA
CONTROL
40 SEG
SED1278
16 COM
20 CHAR × 2 LINES
XSCL, LP
D0
SED1181
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Pages | Pages 16 | ||
Télécharger | [ SED1681F ] |
No | Description détaillée | Fabricant |
SED1681F | CMOS DOT MATRIX LCD CONTROLLER DRIVER | ETC |
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