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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 16988
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图片附件: 74490 - Logic Test.jpg (2021-4-28 20:06, 318.5 KB) / 下载次数 17122
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图片附件: T74LS490B1.jpg (2021-4-28 20:06, 230.4 KB) / 下载次数 16483
http://forums.xgecu.com/attachment.php?aid=476&k=e880ddf55cb51cc93ad181d760ecdf76&t=1785905727&sid=mH8IM7

附件: 74490.pdf (2021-4-28 20:06, 222.38 KB) / 下载次数 43718
http://forums.xgecu.com/attachment.php?aid=477&k=6b4e02670ca6e635746f2f4a12b1356e&t=1785905727&sid=mH8IM7

附件: 74490.lgc (2021-4-28 20:06, 2.39 KB) / 下载次数 67000
http://forums.xgecu.com/attachment.php?aid=478&k=16ff00d4a3ec18f9a699a7796ca19f69&t=1785905727&sid=mH8IM7

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