CD74HC640MIC TRANSCEIVER 3-ST 8BIT 20SOIC|TEXAS INSTRUMENTS|Lead free|RoHS Compliant 74HC74D,653 74HC74N,652 74HC75N,652 CD74HC640MIC TRANSCEIVER 3-ST 8BIT 20SOIC|TEXAS INSTRUMENTS|Lead free|RoHS Compliant 74HC74D,653 74HC74N,652 74HC75N,652