| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| HD74LS14 | Hex schmitt trigger inverters | distributor | - | 14 | -20°C | 75°C | 48 K |
| HD74LS14P | Hex schmitt trigger inverters | distributor | PDIP | 14 | -20°C | 75°C | 48 K |
| HD74LS641-1 | Octal Bus Transceivers with non-inverted open-collector outputs | distributor | - | - | - | - | 52 K |
| HD74LS642 | Octal Bus Transceivers with inverted open-collector outputs | distributor | - | - | - | - | 65 K |
| HD74LS642-1 | Octal Bus Transceivers with inverted open-collector outputs | distributor | - | - | - | - | 52 K |
| HD74LS645 | Octal Bus Transceivers with non-inverted 3-state outputs | distributor | - | - | - | - | 71 K |
| HD74LS645-1 | Octal Bus Transceivers with non-inverted 3-state outputs | distributor | - | - | - | - | 59 K |
| HD74LS668 | Synchronous Up/Down Decade Counter | distributor | - | - | - | - | 103 K |
| HD74LS669 | Synchronous Up/Down 4-bit Binary Counter | distributor | - | - | - | - | 102 K |
| HD74LS670 | 4-by-4 Register File with 3-state outputs | distributor | - | - | - | - | 102 K |
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