SN54LS54
3-2-2-3-INPUT AND-OR-INVERT GATE (Motorola Inc)
SN54LS54
4-Wide AND-OR-Invert Gate (Texas Instruments)
SN54LS540
OCTAL BUFFER/LINE DRIVER (Motorola Inc)
SN54LS540
Octal Buffers And Line Driver (Texas Instruments)
SN54LS541
Octal Buffers And Line Driver (Texas Instruments)
SN54LS51
DUAL 2-WIDE 2-INPUT/ 3-INPUT AND-OR-INVERT GATE (Motorola Inc)
SN54LS51
AND-OR-INVERT GATE (Texas Instruments)
SN54LS55
2-WIDE 4-INPUT AND-OR-INVERT GATE (Motorola Inc)
SN54LS569A
FOUR-BIT UP/DOWN COUNTER (Motorola Inc)
SN54LS590
8-Bit Binary Counters (Texas Instruments)