| 74HCTLS640N | | part details | | | | Avail | | 955 |
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| ZX74HCTLS640N | | part details | | ZYTR | | | Avail | | 912 |
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| ZX74HCTLS640N | | part details | | | | Avail | | 369 |
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| 74HCTLS640N | | part details | | ZX | | 8624 | | Avail | | 172 |
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| KS74HCTLS640N | | part details | | SAMSUNG | | 712/819 | | Avail | | 140 |
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| 74HCTLS640N | | part details | | | | Avail | | 88 |
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| ZX74HCTLS640N | | part details | | ZYTREX | | | Avail | | 78 |
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| KS74HCTLS640N | | part details | | SAMSUNG | | 9650 | | Avail | | 24 |
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| 74HCTLS640N | | part details | | | 86/24 | | Avail | | 18 |
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| KS74HCTLS640N | | part details | | SAMSUNG ELECTRONICS | | 'N/A | | Avail | | 17 |
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