| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| IDT54257DTPB | Fast CMOS quad 2-input multiplexer | Integrated-Device-Technology-Inc- | PDIP | - | -55°C | 125°C | 135 K |
| MC74HC257D | Quad 2-input data selector/multiplexer wirh 3-state outputs | Motorola | SOIC | 16 | -55°C | 125°C | 175 K |
| MC74LCX257D | Low-voltage CMOS quad 2-input multiplexer | Motorola | - | 16 | -40°C | 85°C | 155 K |
| MC74LCX257DT | Low-voltage CMOS quad 2-input multiplexer | Motorola | plastic TSSOP | 16 | -40°C | 85°C | 155 K |
| MM1257DM | High-precision three-pin regulator | distributor | - | 4 | -20°C | 75°C | 62 K |
| MM1257DT | High-precision three-pin regulator | distributor | - | 3 | -20°C | 75°C | 62 K |
| MSC2343257D-60BS8 | 4,194,304-word x 32-bit dynamic RAM module | distributor | SIMM | 72 | 0°C | 70°C | 46 K |
| MSC2343257D-60DS8 | 4,194,304-word x 32-bit dynamic RAM module | distributor | SIMM | 72 | 0°C | 70°C | 46 K |
| MSC2343257D-70BS8 | 4,194,304-word x 32-bit dynamic RAM module | distributor | SIMM | 72 | 0°C | 70°C | 46 K |
| MSC2343257D-70DS8 | 4,194,304-word x 32-bit dynamic RAM module | distributor | SIMM | 72 | 0°C | 70°C | 46 K |
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