| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| DM74S20CW | Dual 4-Input NAND Gate | Fairchild-Semiconductor | - | - | - | - | 33 K |
| DM74S20N | Dual 4-Input NAND Gate | Fairchild-Semiconductor | MDIP | 14 | - | - | 33 K |
| DM74S240N | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild-Semiconductor | MDIP | 20 | - | - | 46 K |
| DM74S241N | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild-Semiconductor | MDIP | 20 | - | - | 46 K |
| DM74S244CW | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild-Semiconductor | - | - | - | - | 46 K |
| DM74S244N | Octal 3-STATE Buffer/Line Driver/Line Receiver | Fairchild-Semiconductor | MDIP | 20 | - | - | 46 K |
| DM74S253N | Dual 3-STATE 1-of-4 Line Data Selector/Multiplexer | Fairchild-Semiconductor | MDIP | 16 | - | - | 49 K |
| DM74S257CW | Quad 3-STATE 2-to-1 Line Data Selector/Multiplexer | Fairchild-Semiconductor | - | - | - | - | 47 K |
| DM74S257N | Quad 3-STATE 2-to-1 Line Data Selector/Multiplexer | Fairchild-Semiconductor | MDIP | 16 | - | - | 47 K |
| DM74S280M | 9-Bit Parity Generator/Checker | Fairchild-Semiconductor | SOIC | 14 | - | - | 62 K |
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