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本文简要地介绍了一种集成电路测试仪的结构、原理、应用.它以Z80微处理器为中心,将标准逻辑功能表存储在EPROM中.被测器件的输入状态由Z80通过PIO6821提供,测试结果经PIO6821送入RAM6116进行逻辑比较判别,判别结果相同时显示正确标志“P”,反之显示“F”.该仪器是一种智能化自动测试仪器,准确迅速,使用方便,在实际应用中取得良好效果.
This article briefly introduces the structure, principle and application of an integrated circuit tester, which stores the standard logic function table in the EPROM centering on the Z80 microprocessor.The input status of the device under test is provided by the Z80 through the PIO6821, The result is sent to RAM6116 through PIO6821 for logical comparison judgment. When the discrimination result is the same, the correct mark “P” is displayed and “F” is displayed instead. "The instrument is an intelligent automatic test instrument, which is accurate, rapid and easy to use and is obtained in practical application Good effect.