DM74S51 Datasheet - Fairchild Semiconductor
MFG CO.

Fairchild Semiconductor
General Description
This device contains two independent combinations of gates each of which performs the logic AND-OR-INVERT function.
Part Name
Description
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MFG CO.
Dual 2-wide 2-input AND-OR-invert gate
Philips Electronics
DUAL 2 WIDE 2 INPUT AND/OR INVERT GATE ( Rev : 1992 )
STMicroelectronics
DUAL 2 WIDE 2 INPUT AND/OR INVERT GATE
STMicroelectronics
DUAL 2 WIDE 2 INPUT AND/OR INVERT GATE
STMicroelectronics
Dual 2-Wide 2-Input; 2-Wide 3-Input AND-OR-Invert Gate
Fairchild Semiconductor
Dual 2-wide 2-input Expandable AND-OR-INVERT Gate
Hitachi -> Renesas Electronics
Dual 2-Wide 2-Input, 2-Wide 3-Input AND-OR-INVERT Gate
Fairchild Semiconductor
DUAL 2-WIDE 2-INPUT, 2-WIDE 3-INPUT AND-OR-INVERT GATE
Motorola => Freescale
CMOS Dual 2 Wide 2 Input AND-OR-INVERT Gate
Intersil
2-wide 2-input, 2-wide 3-input AND-OR-INVERT Gate
Hitachi -> Renesas Electronics