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Internal storage structure and its controller

A controller and memory technology, used in static memory, memory address/allocation/relocation, instruments, etc., to solve problems such as different overall pin counts, compatibility issues, printed circuit board re-layout, etc.

Inactive Publication Date: 2008-04-09
MACRONIX INT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Due to the difference in the overall number of pins, there are compatibility problems, so that the printed circuit board needs to be re-layouted
[0006] 2. Due to the difference between the control signal and the power signal, the software must be rewritten

Method used

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  • Internal storage structure and its controller
  • Internal storage structure and its controller
  • Internal storage structure and its controller

Examples

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Embodiment Construction

[0050] Before describing the embodiment, it must be noted that in the following embodiments, although only flash memory and masked read-only memory (Mask ROM) are used as examples for the sake of convenience, those who are familiar with this technology should know that as long as the Two different kinds of memory are combined into one memory structure, and the situation that the overall pin number of one kind of memory is the overall pin number of this memory structure is suitable for the present invention. The overall number of pins is the sum of the number of used pins and the number of unused pins. The number of pins used includes the number of pins used by signals such as address, data, control, power, and ground. The number of unused pins is the number of pins that do not need to be connected to other places. In other words, for those skilled in the art, the present invention is applicable to the situation where two different memories are combined into one memory structu...

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Abstract

The present invention relates to an internal memory structure and its used controller. The internal storage range in the internal memory structure which can be fetched once is called total internal memory capacity, and said internal memory structure includes first internal memory whose capacity is first internal memory capacity and second internal memory whose capacity is second internal memory capacity, and when the internal memory capacity of first internal memory is a specific fixed capacity, its actual used pin position memory capacity of second internal memory is fixed capacity, its actual used pin position number is pin position of second application pin position number in which first application pin position number is greater than second application pin position number.

Description

technical field [0001] The present invention relates to a memory structure and a controller used therein, and in particular to a memory structure integrating multiple memories and a controller used therein. Background technique [0002] High-density flash memory (FLASH memory) has been used in many applications, such as portable phones (Mobile phone) and personal digital assistants (PDA). Among them, flash memory is mainly used to store program codes, data codes (such as text fonts, images, sounds, etc.) and personal data (such as telephone numbers). Since the program code and data code are already fixed after the system is stabilized, it is not economical to use high-density flash memory to store the program code and data code. By reducing the capacity requirement of the flash memory and only using the flash memory to store personal data that may change, the cost of the entire device can be reduced. Therefore, a memory structure including both flash memory and masked read...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/06G11C5/00
Inventor 阎庆芳徐晓阳倪福隆
Owner MACRONIX INT CO LTD