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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 14801
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图片附件: 74490 - Logic Test.jpg (2021-4-28 20:06, 318.5 KB) / 下载次数 14914
http://forums.xgecu.com/attachment.php?aid=475&k=4b30cb570d325ff1fd835b7105da36f1&t=1768518307&sid=p18118

图片附件: T74LS490B1.jpg (2021-4-28 20:06, 230.4 KB) / 下载次数 14361
http://forums.xgecu.com/attachment.php?aid=476&k=f058cd6a6d471f7145a87c0178e40d45&t=1768518307&sid=p18118

附件: 74490.pdf (2021-4-28 20:06, 222.38 KB) / 下载次数 41960
http://forums.xgecu.com/attachment.php?aid=477&k=6de99afadf4d17ef5a7a730c26f54cd0&t=1768518307&sid=p18118

附件: 74490.lgc (2021-4-28 20:06, 2.39 KB) / 下载次数 56731
http://forums.xgecu.com/attachment.php?aid=478&k=7de65762790911d2cb9477732aa44c5a&t=1768518307&sid=p18118

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