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Configurable universal small-scale integrated ASIC chip

An ASIC chip, small-scale integrated circuit technology, applied in aerospace electronics integration and aviation fields, to achieve the effects of high versatility, reduced types, and high chip compatibility

Active Publication Date: 2019-05-10
NAT SPACE SCI CENT CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the cost problem caused by the many types of 54 series chips in the existing aerospace circuit design technology, thereby providing a kind of chip with high versatility, high flexibility, high compatibility and no need for software design to replace the general 54 series chips ASIC chip

Method used

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Embodiment Construction

[0038] The present invention will be further described now in conjunction with accompanying drawing.

[0039] figure 1 The pin description of the ASIC chip that replaces the general-purpose 54 series chips for aerospace applications is given. The pin definition and package of the chip follow the bus driver 54AC164245, and the package is CFP48. and 54AC162245 for an unmodified replacement.

[0040] Different from the conventional bus driver, the ASIC chip of the present invention designs 4 function configuration pins CFG[3:0], which are respectively 10, 15, 34, and 39. The corresponding logic functions inside the chip are output to the chip pins.

[0041] The internal logic of the ASIC chip of the present invention integrates bus driver 54AC164245, D flip-flop 54ACS374, 38 decoder 54ACS138, NAND gate 54ACS00, OR gate 54ACS32, AND gate 54ACS08, inverter 54ACS14, XOR gate 54ACS86, counter, Shift register, latch 54ACS373 and other commonly used functions of 54 series military s...

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Abstract

The invention discloses a configurable universal small-scale integrated ASIC chip. A plurality of 54-series military small-scale integrated circuits with different functions are integrated on the ASICchip, and the function selection of the chip is realized by pulling up and down the exteriors of the four function configuration pins, so that one ASIC chip can be universally applied to various small-scale integrated circuit application occasions. The ASIC chip disclosed by the invention can replace the conventional 54-series military small-scale integrated circuit which is commonly used for import or domestic use, and has the characteristics of high universality, configurability, high reliability and low cost.

Description

technical field [0001] The invention relates to the technical field of aviation and aerospace electronics integration, in particular to a configurable general small-scale integrated ASIC chip. Background technique [0002] Due to the mass use of programmable devices, the amount of small-scale integrated circuits is shrinking. However, there is still a certain demand for the application of small-scale integrated circuits. The main reason is that the power supply voltage of large-scale devices is low, while the power supply voltage of the interface is generally high, requiring some device transitions. In addition, the large-scale use of ASIC also requires small-scale integrated circuits as a supplement. [0003] The 54 series is a military small-scale integrated circuit corresponding to the 74 series. The 74 series of small-scale integrated circuits has two technical paths. One is the 74XX of the TTL series, on which different series such as 74S, 74M, 74L, 74LS, and 74F ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F15/78
CPCY02D10/00
Inventor 安军社周莉
Owner NAT SPACE SCI CENT CAS
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