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GSM7980

Syntec Semiconductor
Part Number GSM7980
Manufacturer Syntec Semiconductor
Description Dot Matrix LCD Controller/Driver
Published Jun 20, 2007
Detailed Description Syntek Semiconductor Co., Ltd. Description GSM7980 The GSM7980 dot-matrix liquid crystal display controller and driver...
Datasheet PDF File GSM7980 PDF File

GSM7980
GSM7980

Overview
Syntek Semiconductor Co.
, Ltd.
Description GSM7980 The GSM7980 dot-matrix liquid crystal display controller and driver LSI displays alphanumeric, Japanese kana characters, and symbols.
It can be configured to drive a dot-matrix liquid crystal display under the control of a 4- or 8-bit microprocessor.
Since all the functions such as display RAM, character generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally provided on one chip, a minimal system can be interfaced with this controller/driver.
The GSM7980 has pin function compatibility with the HD44780, KS0066U and SED1278 that allows the user to easily replace it with an GSM7980.
The GSM7980 character generator ROM is extended to generate 208 5 x 8 dot character fonts and 32 5 x 10 dot character fonts for a total of 240 different character fonts.
The low power supply (2.
7V to 5.
5V) of the GSM7980 is suitable for any portable battery-driven product requiring low power dissipation.
The GSM7980 LCD driver consists of 16 common signal drivers and 40 segment signal drivers which can extend display size by cascading segment driver GSM788E, GSM798E or GSM793E.
The maximum display size can be either 80 characters in 1-line display or 40 characters in 2-line display.
A single GSM7980 can display up to one 8-character line or two 8-character lines.
Features l l www.
DataSheet4U.
com 5 x 8 and 5 x 10 dot matrix possible Low power operation support: -- 2.
7 to 5.
5V Wide range of LCD driver power -- 3.
0 to 11V Correspond to high speed MPU bus interface -- 2 MHz (when VCC = 5V) 4-bit or 8-bit MPU interface enabled 80 x 8-bit display RAM (80 characters max.
) 9,920-bit character generator ROM for a total of 240 character fonts -- 208 character fonts (5 x 8 dot) -- 32 character fonts (5 x 10 dot) 64 x 8-bit character generator RAM -- 8 character fonts (5 x 8 dot) -- 4 character fonts (5 x 10 dot) 16-common x 40-segment liquid crystal display driver Programmable duty cycles -- 1...


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