| Manufacturer 厂家 | 简体中文 | English |
|---|---|---|
| ti | SN74LS640-1NSR | SN74LS640-1NSR |
| ti | SN74LS640-1NE4 | SN74LS640-1NE4 |
| ti | SN74LS640-1N | SN74LS640-1N |
| ti | SN74LS640-1DWR | SN74LS640-1DWR |
| ti | SN74LS640-1DWG4 | SN74LS640-1DWG4 |
| ti | SN74LS640-1DWE4 | SN74LS640-1DWE4 |
| ti | SN74LS640-1DW | SN74LS640-1DW |
