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LH155BA

Sharp Electrionic Components
Part Number LH155BA
Manufacturer Sharp Electrionic Components
Description 128-Segment and 64-Common Outputs LCD Driver IC with A Built-in RAM
Published Mar 22, 2005
Detailed Description LH155BA LH155BA DESCRIPTION The LH155BA is an LCD driver with a built-in RAM suitable for driving medium/small scale do...
Datasheet PDF File LH155BA PDF File

LH155BA
LH155BA

Overview
LH155BA LH155BA DESCRIPTION The LH155BA is an LCD driver with a built-in RAM suitable for driving medium/small scale dot-matrix LCD panels, and which is capable of being directly connected to the bus line of a microcomputer.
The LH155BA stores in the RAM the 8-bit parallel or serial display data transferred from the microcomputer and generates LCD drive signals.
Since the LH155BA features a bit-map type LCD driver that one bit of data in the display RAM corresponds to one dot in the LCD, there is a lot of freedom in displaying.
The LH155BA has 128 segment outputs and 64 common outputs in a single chip, making it possible to create an LCD system with the fewest number of the chips.
The LH155BA enables an LCD system for batteryoperated, hand-carrying information equipment by securing lower power consumption and wider operating voltage range.
128-Segment and 64-Common Outputs LCD Driver IC with A Built-in RAM • Abundant command functions – Display data read/write – Setting up LCD alternating signal cycle – Setting up display starting-line : per line – Display ON/OFF – Display control of normal and reverse modes – Increment control of display RAM address – Write control of read modifying – Internal register read – Power saving mode • LCD drive power circuit – Built-in booster circuit : Two, three or four times voltage boost is possible – Built-in voltage converter : Generates LCD drive voltages (V0, V1, V2, V3 and V4) based on the boosted voltage – Built-in power bias ratio : 1/7 or 1/9 bias (selectable by command) – Built-in electronic volume : Controllable in 16 steps – Supply voltages Logic system : +1.
8 to +5.
5 V LCD drive system : +4.
0 to +14.
0 V • Operating temperature : –30 to +85 ˚C • Package : 260-pin TCP (Tape Carrier Package) FEATURES • • • • Graphic display output pin : 64 x 128 pins Segment display output pin : 3 x 12 pins Icon display output pin : 1 x 1 pin LCD display by graphic display RAM – Normal mode : RAM data "0"/not lighted, RAM data "1"/lighted...


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