M87C257 系列
| 製造商零件# | 描述 | 製造商 | 有存貨 | 手術 |
| M87C257-12F1 | IC EPROM 256KBIT PARALLEL 28CDIP | STMicroelectronics | 7307 |
|
| M87C257-15C1 | IC EPROM 256KBIT PARALLEL 32PLCC | STMicroelectronics | 9760 |
|
| M87C257-15C6 | IC EPROM 256KBIT PARALLEL 32PLCC | STMicroelectronics | 8298 |
|
| M87C257-15F6 | IC EPROM 256KBIT PARALLEL 28CDIP | STMicroelectronics | 3640 |
|
| M87C257-90C1 | IC EPROM 256KBIT PARALLEL 32PLCC | STMicroelectronics | 5679 |
|
| M87C257-90C1TR | IC EPROM 256KBIT PARALLEL 32PLCC | STMicroelectronics | 7531 |
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