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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 16733
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图片附件: 74490 - Logic Test.jpg (2021-4-28 20:06, 318.5 KB) / 下载次数 16878
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图片附件: T74LS490B1.jpg (2021-4-28 20:06, 230.4 KB) / 下载次数 16229
http://forums.xgecu.com/attachment.php?aid=476&k=1a9ec2fd0ed306fb07d3c304d61999a0&t=1781400020&sid=88J2KQ



附件: 74490.pdf (2021-4-28 20:06, 222.38 KB) / 下载次数 43516
http://forums.xgecu.com/attachment.php?aid=477&k=e28430562925a4a4dc6d66fe73fe9b45&t=1781400020&sid=88J2KQ

附件: 74490.lgc (2021-4-28 20:06, 2.39 KB) / 下载次数 66745
http://forums.xgecu.com/attachment.php?aid=478&k=393a6d34f000ce7cb779c377cc8f3d5c&t=1781400020&sid=88J2KQ




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