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PRODUCT INFORMATION
Vol. 80
Microcontroller with On-Chip LCD Dot Matrix Function Developed Low current drain achieved despite inclusion of the largest (64KB) on-chip ROM in the industry
LC868364A
Overview
Portable battery-operated electronic products are now available in a wide range of variations and the demand for these products continues to grow. Since even longer battery operating times are now a major market trend, there are now even stronger desires for reduced current drain devices for these products. To extend battery life, LCDs are now used almost exclusively as the display device in these products. One trend in this market has been the increasing use of products that provide character display. When character display is provided, graphics display becomes necessary to move from the earlier segment displays to dot matrix displays. Although graphics display allows systems to display arbitrary images, it also increases system memory requirements. Thus there are now strong desires for increased capacities in graphics storage memory. To respond to these market needs, Sanyo has developed the LC868364A 8-bit microcontroller with an on-chip LCD dot matrix function. (Such devices are referred to in the remainder of this document as a "dot matrix microcontrollers.") To achieve the low current drain required in portable applications, the LC868364A allows LCD operation with only the 32-kHz LCD oscillator operating. This reduces the current drain when the LCD is operated continuously to 1/7 that of earlier Sanyo products. This low current drain operation makes it possible for portable equipment to provide a wider range of functions. The LC868364A's LCD dot matrix display function supports both 32 x 32 dot displays and 16 x 48 dot displays. Furthermore, this capability can be expanded in 80-segment units when used in combination with the LC868920A LCD driver, which was developed at the same time. The LC868364A includes an on-chip 64KB mask ROM for character and other display data, and allows applications to provide a wide variety of display data. By using this data, and combinations of different data items, applications can provide far more diverse display variations than was possible previously. Thus the LC868364A is the optimal microcontroller for portable products that handle large amounts of display data and other information, particularly products that provide rich and complex character displays.
SANYO Electric Co., Ltd. Semiconductor Company Overseas Marketing Division
TOKYO OFFICE: Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 1
PRODUCT INFORMATION
Sanyo is committed to providing an extensive product line of dot matrix microcontrollers designed for applications that can take advantage of dot matrix microcontrollers, such as games and PDAs. The recently developed dot matrix microcontroller described here was developed and is now being released as part of this product line expansion. Sanyo will continue to respond to the needs of the expanding portable equipment market and will be aggressively developing new products that take advantage of the low current drain system technology used in this product.
Features
* Low current drain operation: 1/7 that of earlier Sanyo products when the LCD is operating * 64KB mask ROM on chip * Implements a 32 x 32 (or 16 x 48) dot display in a single chip * Supports expansion of the display area in 80-segment units by use of one or more external LC868920A chips.
Specifications
* Sanyo 8-bit CPU core (Minimum bus cycle: 0.5 s, minimum instruction cycle: 1 s) * 64KB mask ROM, 640-byte RAM on chip * On-chip LCD dot matrix controller/driver * External memory access function * Delivery form: bare chip
Sample Availability
Sample of the LC868364A will be available in June 1999; production quantities will be anticipated in the end of 1999.
JUNE 10, 1999
SANYO Electric Co., Ltd. Semiconductor Company Overseas Marketing Division
2
PRODUCT INFORMATION
s Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. s SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein. s Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. s SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. s In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. s No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. s Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
SANYO Electric Co., Ltd. Semiconductor Company Overseas Marketing Division
PS 61099/80
3

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