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标题: New Logic Test - 74490 Vector Table [打印本页]

作者: yovish 时间: 2021-4-28 20:06 标题: New Logic Test - 74490 Vector Table

Enclosed is the new layout to be added to the logic tests.
The test was performed on the T74LS490B1 (dual 4-bit decade counters) chip from STMicroelectronics.

图片附件: 74490 - Logic Vector.jpg (2021-4-28 20:05, 314.99 KB) / 下载次数 16764
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图片附件: 74490 - Logic Test.jpg (2021-4-28 20:06, 318.5 KB) / 下载次数 16905
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图片附件: T74LS490B1.jpg (2021-4-28 20:06, 230.4 KB) / 下载次数 16256
http://forums.xgecu.com/attachment.php?aid=476&k=93fb16ae241b2e0997c35a16f9656fa3&t=1781684119&sid=cJUIfu

附件: 74490.pdf (2021-4-28 20:06, 222.38 KB) / 下载次数 43546
http://forums.xgecu.com/attachment.php?aid=477&k=dcd40e9f73427413c0345aa3df26a4b9&t=1781684119&sid=cJUIfu

附件: 74490.lgc (2021-4-28 20:06, 2.39 KB) / 下载次数 66771
http://forums.xgecu.com/attachment.php?aid=478&k=8af4560e789972c7a745e7d8c5742a53&t=1781684119&sid=cJUIfu

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