| 型号 | 厂商 | 描述 |
| sn74ls279ansr | Texas Instruments | IC QUAD S-R LATCHES 16-SOP |
| sn74ls279ansr | Texas Instruments | IC QUAD S-R LATCHES 16-SOP |
| sn74ls279ansre4 | Texas Instruments | IC QUAD S-R LATCHES 16-SOP |
| sn74ls279ansrg4 | Texas Instruments | IC S-R LATCH QUAD TRI-ST 16SOP |
| sn74ls27d | Texas Instruments | IC TRPL 3-IN POS-NOR GATE 14SOIC |
| sn74ls27de4 | Texas Instruments | IC TRPL 3-IN POS-NOR GATE 14SOIC |
| sn74ls27dg4 | Texas Instruments | IC TRPL 3-IN POS-NOR GATE 14SOIC |
| sn74ls27dr | Texas Instruments | IC TRIP 3-IN NOR GATE 14-SOIC |
| sn74ls27dr | Texas Instruments | IC TRIP 3-IN NOR GATE 14-SOIC |
| sn74ls27dr | Texas Instruments | IC TRIP 3-IN NOR GATE 14-SOIC |
| sn74ls27dre4 | Texas Instruments | IC TRPL 3-IN POS-NOR GATE 14SOIC |
| sn74ls27drg4 | Texas Instruments | IC TRPL 3-IN POS-NOR GATE 14SOIC |
| sn74ls27n | Texas Instruments | IC TRPL 3-IN POS-NOR GATE 14DIP |
| sn74ls27ne4 | Texas Instruments | IC TRIP 3-IN NOR GATE 14-DIP |
| sn74ls27nsr | Texas Instruments | IC GATE NOR TRIPPLE 3INP 14SOP |
| sn74ls27nsr | Texas Instruments | IC GATE NOR TRIPPLE 3INP 14SOP |
| sn74ls27nsr | Texas Instruments | IC GATE NOR TRIPPLE 3INP 14SOP |
| sn74ls27nsre4 | Texas Instruments | IC TRPL 3-IN POS-NOR GATE 14-SOP |
| sn74ls27nsrg4 | Texas Instruments | IC TRPL 3-IN POS-NOR GATE 14-SO |
| sn74ls280d | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOIC |
| sn74ls280de4 | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOIC |
| sn74ls280dg4 | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOIC |
| sn74ls280dr | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOIC |
| sn74ls280dre4 | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOIC |
| sn74ls280drg4 | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOIC |
| sn74ls280n | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14DIP |
| sn74ls280ne4 | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14DIP |
| sn74ls280nsr | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOP |
| sn74ls280nsr | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOP |
| sn74ls280nsr | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOP |
| sn74ls280nsre4 | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOP |
| sn74ls280nsrg4 | Texas Instruments | IC PARITY GEN/CHKER 9BIT 14SOP |
| sn74ls283d | Texas Instruments | IC BIN FULL 4BIT ADD CAR 16-SOIC |
| sn74ls283de4 | Texas Instruments | IC BIN FULL 4BIT ADD CAR 16-SOIC |
| sn74ls283dg4 | Texas Instruments | IC BINARY FULL ADDER 16SOIC |
| sn74ls283dr | Texas Instruments | IC BIN FULL 4BIT ADD CAR 16-SOIC |
| sn74ls283dre4 | Texas Instruments | IC BIN FULL 4BIT ADD CAR 16-SOIC |
| sn74ls283drg4 | Texas Instruments | IC BINARY FULL ADDER 16SOIC |
| sn74ls283n | Texas Instruments | IC 4BIT BINARY FULL ADDER 16-DIP |
| sn74ls283ne4 | Texas Instruments | IC 4BIT BINARY FULL ADDER 16-DIP |
| sn74ls283nsr | Texas Instruments | IC BINARY FULL ADDERS 4BIT 16SOP |
| sn74ls283nsr | Texas Instruments | IC BINARY FULL ADDERS 4BIT 16SOP |
| sn74ls283nsr | Texas Instruments | IC BINARY FULL ADDERS 4BIT 16SOP |
| sn74ls283nsre4 | Texas Instruments | IC BIN FULL 4BIT ADD CAR 16-SOP |
| sn74ls283nsrg4 | Texas Instruments | IC BINARY FULL ADDER 16SOIC |
| sn74ls292n | Texas Instruments | IC PROG FREQ DIV/TIMER 16-DIP |
| sn74ls292ne4 | Texas Instruments | IC PROG FREQ DIV/TIMER 16-DIP |
| sn74ls293d | Texas Instruments | IC 4BIT BINARY COUNTER 14-SOIC |
| sn74ls293de4 | Texas Instruments | IC 4BIT BINARY COUNTER 14-SOIC |
| sn74ls293dg4 | Texas Instruments | IC COUNTER BINARY 4BIT 14SOIC |