| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| DM74AS640N | Octal 3-STATE Octal Bus Transceiver | Fairchild-Semiconductor | MDIP | 20 | - | - | 52 K |
| DM74AS640WM | Octal 3-STATE Octal Bus Transceiver | Fairchild-Semiconductor | SOIC | 20 | - | - | 52 K |
| DM74AS640WMX | Octal 3-STATE Octal Bus Transceiver | Fairchild-Semiconductor | SOIC | 20 | - | - | 52 K |
| DM74AS646NT | Octal 3-STATE Bus Transceiver Register | Fairchild-Semiconductor | MDIP | 24 | - | - | 82 K |
| DM74AS646WM | Octal 3-STATE Bus Transceiver Register | Fairchild-Semiconductor | SOIC | 24 | - | - | 82 K |
| DM74AS646WMX | Octal 3-STATE Bus Transceiver Register | Fairchild-Semiconductor | SOIC | 24 | - | - | 82 K |
| DM74AS648NT | Octal 3-STATE Inverting Bus Transceiver Register | Fairchild-Semiconductor | MDIP | 24 | - | - | 82 K |
| DM74AS648WM | Octal 3-STATE Inverting Bus Transceiver Register | Fairchild-Semiconductor | SOIC | 24 | - | - | 82 K |
| DM74AS648WMX | Octal 3-STATE Inverting Bus Transceiver Register | Fairchild-Semiconductor | SOIC | 24 | - | - | 82 K |
| DM74AS651WMX | Octal Bus Transceiver and Register | Fairchild-Semiconductor | SOIC | 24 | - | - | 70 K |
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