| Компонент | Описание | Производитель | |
| EN27C51290I | 512KBIT EPROM (64K x 8) |
List of Unclassifed Manufacturers |
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| EN27C51290II | 512KBIT EPROM (64K x 8) |
List of Unclassifed Manufacturers |
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| EN27C51290J | 512KBIT EPROM (64K x 8) |
List of Unclassifed Manufacturers |
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| EN27C51290JI | 512KBIT EPROM (64K x 8) |
List of Unclassifed Manufacturers |
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| EN27C51290P | 512KBIT EPROM (64K x 8) |
List of Unclassifed Manufacturers |
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| EN27C51290PI | 512KBIT EPROM (64K x 8) |
List of Unclassifed Manufacturers |
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| EN27C51290T | 512Kbit EPROM (64K x 8). Speed 90ns. Single 5V power supply. |
Eon Silicon Solution Inc. |
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| EN27C51290TI | 512Kbit EPROM (64K x 8). Speed 90ns. Single 5V power supply. |
Eon Silicon Solution Inc. |