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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 6843
http://forums.xgecu.com/attachment.php?aid=474&k=019426774417ffd7380ce5b9052ea748&t=1714967262&sid=VGVB31

图片附件: 74490 - Logic Test.jpg (2021-4-28 20:06, 318.5 KB) / 下载次数 6923
http://forums.xgecu.com/attachment.php?aid=475&k=e48149a36e723eca37341f6f6ad9947c&t=1714967262&sid=VGVB31

图片附件: T74LS490B1.jpg (2021-4-28 20:06, 230.4 KB) / 下载次数 6730
http://forums.xgecu.com/attachment.php?aid=476&k=ada14d70578559fae05938841edda5fb&t=1714967262&sid=VGVB31

附件: 74490.pdf (2021-4-28 20:06, 222.38 KB) / 下载次数 23441
http://forums.xgecu.com/attachment.php?aid=477&k=c50675c4e9b746770b91801d5e25ca25&t=1714967262&sid=VGVB31

附件: 74490.lgc (2021-4-28 20:06, 2.39 KB) / 下载次数 23768
http://forums.xgecu.com/attachment.php?aid=478&k=47dc10773f82a568bb711d9ec871542b&t=1714967262&sid=VGVB31

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