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标题: New Logic Test - 74249 Vector Table [打印本页]

作者: yovish 时间: 2021-5-24 02:54 标题: New Logic Test - 74249 Vector Table

Enclosed is the new layout to be added to the logic tests.
The test was performed on the HD74LS249P (BCD-to-Seven-Segment Decoder/Driver, open-collector outputs) chip from Hitatchi.

图片附件: 74249 - Logic Vector.jpg (2021-5-24 02:52, 340.81 KB) / 下载次数 12849
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图片附件: 74249 - Logic Test.jpg (2021-5-24 02:53, 315.25 KB) / 下载次数 12842
http://forums.xgecu.com/attachment.php?aid=598&k=598b4e1ed6605f0e8f4141459627f968&t=1728998563&sid=b5Qe6J

图片附件: HD74LS249P.jpg (2021-5-24 02:53, 327.2 KB) / 下载次数 12933
http://forums.xgecu.com/attachment.php?aid=599&k=588566e469029f8231d659327b8846bd&t=1728998563&sid=b5Qe6J

附件: SN74LS247, SN74LS248, SN74LS249.pdf (2021-5-24 02:53, 283.58 KB) / 下载次数 9119
http://forums.xgecu.com/attachment.php?aid=600&k=338193bbfa0d498d8dda6a087152adb0&t=1728998563&sid=b5Qe6J

附件: 74249.lgc (2021-5-24 02:53, 2.48 KB) / 下载次数 45060
http://forums.xgecu.com/attachment.php?aid=601&k=866b726dd65fb3bde957cde187e6e037&t=1728998563&sid=b5Qe6J

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