| 54LS257J/883B | | part details | | RAYTH | | | Avail | | 718 |
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| DM54LS257J/883B | | part details | | NSC | | | Avail | | 321 |
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| SN54LS257J-B | | part details | | AMD | | | Avail | | 270 |
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| 54LS257J | | part details | | | NEW | | Avail | | 225 |
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| DM54LS257J | | part details | | National | | NEW | | Avail | | 225 |
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| DM54LS257J/883C | | part details | | National Semiconductor Co | | 9021 | | Avail | | 168 |
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| DM54LS257J/883B | | part details | | NATIONAL SEMI | | 7636 | | Avail | | 131 |
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| SN54LS257J-B | | part details | | AMD | | 76 | | Avail | | 126 |
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| 54LS257J/883B | | part details | | Raytheon Semiconductor Di | | 8024 | | Avail | | 100 |
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| DM54LS257J/883C | | part details | | NATIONAL SEMI | | 86 | | Avail | | 100 |
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| SNC54LS257J | | part details | | T-I | | | Avail | | 87 |
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| 54LS257J-B | | part details | | ICS | | | Avail | | 76 |
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