SN54LS279
QUAD SET-RESET LATCH (Motorola)
SN54LS27
Triple 3-Input Positive-NOR Gates (Texas Instruments)
SN54LS273
OCTAL D-TYPE FLIP-FLOP (Texas Instruments)
SN54LS273
OCTAL D FLIP-FLOP (Motorola)
SN54LS20
DUAL 4-INPUT NAND GATE (Motorola Inc)
SN54LS20
Dual 4-Input Positive-NAND Gate (Texas Instruments)
SN54LS21
DUAL 4-INPUT AND GATE (Motorola Inc)
SN54LS21
DUAL 4-INPUT POSITIVE-AND GATE (Texas Instruments)
SN54LS22
DUAL 4-INPUT NAND GATE (Motorola Inc)
SN54LS221
DUAL MONOSTABLE MULTIVIBRATORS (Motorola Inc)