| M54HC643 | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM54HC640 | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM54HC640J | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM54HC643 | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM54HC643J | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM74HC640 | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM74HC640J | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM74HC640N | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM74HC643 | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM74HC643J | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
| MM74HC643N | Inverting Octal TRI-STATE Transceiver | Datasheet*) |
There are other manufacturers for this components. For more information please check
M54HC643 (SGS-Thomson Microelectronics)
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