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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 11257
http://forums.xgecu.com/attachment.php?aid=474&k=013f853386497885ad6d689863de1dee&t=1747625921&sid=v93WV9

图片附件: 74490 - Logic Test.jpg (2021-4-28 20:06, 318.5 KB) / 下载次数 11375
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图片附件: T74LS490B1.jpg (2021-4-28 20:06, 230.4 KB) / 下载次数 11111
http://forums.xgecu.com/attachment.php?aid=476&k=c9b5e11feea943a178b3d59131bc4696&t=1747625921&sid=v93WV9

附件: 74490.pdf (2021-4-28 20:06, 222.38 KB) / 下载次数 39912
http://forums.xgecu.com/attachment.php?aid=477&k=c70c752832ec88b742d1180e271bb6ee&t=1747625921&sid=v93WV9

附件: 74490.lgc (2021-4-28 20:06, 2.39 KB) / 下载次数 42005
http://forums.xgecu.com/attachment.php?aid=478&k=1dbcd4af1eb915787a782afc376b3d99&t=1747625921&sid=v93WV9

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