| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| BC557BRL1 | Amplifier Transistors | ON-Semiconductor | - | 3 | - | - | 158 K |
| BC857BLT1 | General Purpose Transistor PNP | ON-Semiconductor | - | 3 | - | - | 181 K |
| BC857BLT3 | General Purpose Transistor PNP | ON-Semiconductor | - | 3 | - | - | 181 K |
| BC857BWT1 | General Purpose Transistor PNP | ON-Semiconductor | - | 3 | - | - | 178 K |
| SN74LS257BD | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | Texas-Instruments | D | 16 | 0°C | 70°C | 248 K |
| SN74LS257BDR | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | Texas-Instruments | D | 16 | 0°C | 70°C | 248 K |
| SN74LS257BN | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | Texas-Instruments | N | 16 | 0°C | 70°C | 248 K |
| SN74LS257BN3 | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS | Texas-Instruments | N | 16 | 0°C | 70°C | 248 K |
| SNJ54LS257BJ | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS | Texas-Instruments | J | 16 | -55°C | 125°C | 248 K |
| SNJ54LS257BW | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS | Texas-Instruments | W | 16 | -55°C | 125°C | 248 K |
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