NXP Semiconductors.
Hex inverter
System Logic Semiconductor
Hex Inverter with Open-Drain Outputs
Philips Electronics
Quad 2-input NOR gate
NXP Semiconductors.
Quad 2-input NAND gate
Hitachi -> Renesas Electronics
Quad. 2-input NAND Gates (with open drain outputs)
ON Semiconductor
Quad 2−Input AND Gate
Unspecified
QUAD 2-INPUT AND GATE (OPEN DRAIN)
ON Semiconductor
Hex Inverter
NXP Semiconductors.
Hex inverter with open-drain outputs