NEW PRODUCT INFORMATION LH15A1 LCD driver with built-in RAM for 256-color STN-LCDs Outline LH15A1 is one of the industry’s most advanced wide-screen STN-LCD drivers for 256-color display. The industry’s first subscreen display function makes it possible to display different images and data in a subscreen inside the main LCD screen. It also has a built-in display RAM, a power supply circuit for LCD drive, and an LCD controller circuit, therefore contributing to compact system design. Its partial display function* realizes low power consumption. *Partial display function: A function that utilizes only part of the screen, thus reducing power consumption. Main specifications 256-color display Bus connection with 80-family/68-family MPU Outputs Segment: 384 outputs Logic power supply voltage: Common: 82 outputs 1.7 to 3.3 V LCD driving voltage: 5.0 to 15.0 V Display RAM capacity: 83 968 bits Booster: 2 to 5 times Built-in display RAM and power supply circuit Write system cycle: 140 ns Partial display functions Package: TCP Switchable display in black and white mode System configuration (Master/slave method) LH15A1 MPU BUS Control Logic Display data RAM LCD driving voltage/ Booster circuit Segment driver Common driver MPU 384/82 Color STN-LCD panel 128×RGB×164 dots 384/82 Segment driver Display data RAM Common driver LCD driving voltage/ Booster circuit Control logic LH15A1 In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. Specifications are subject to change without notice for improvement. As of March, 2001. IC-033