MM57409 и другие
| Компонент | Описание | Производитель | |
| EM57400 | TINY CONTROLLER-BASED SOUND PROCESSOR |
List of Unclassifed Manufacturers |
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| MM5740 | KEYBOARD ENCODER CIRCUITS |
List of Unclassifed Manufacturers |
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| MM57409 | SUPER NUMBER GRUNCHER |
National Semiconductor |
|
| MM57409N | SUPER NUMBER GRUNCHER |
National Semiconductor |
|
| MM5740N | KEYBOARD ENCODER CIRCUITS |
List of Unclassifed Manufacturers |
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