| 型号 | 厂商 | 描述 |
| sn74ls293dr | Texas Instruments | IC 4BIT BINARY COUNTER 14-SOIC |
| sn74ls293dre4 | Texas Instruments | IC 4BIT BINARY COUNTER 14-SOIC |
| sn74ls293drg4 | Texas Instruments | IC COUNTER BINARY 4BIT 14SOIC |
| sn74ls293n | Texas Instruments | IC COUNTER BINARY 4BIT 14-DIP |
| sn74ls293ne4 | Texas Instruments | IC COUNTER BINARY 4BIT 14-DIP |
| sn74ls294n | Texas Instruments | IC PROG FREQ DIV/TIMER 16-DIP |
| sn74ls294ne4 | Texas Instruments | IC PROG FREQ DIV/TIMER 16-DIP |
| sn74ls297n | Texas Instruments | IC DIG PLL FILTER 16-DIP |
| sn74ls297ne4 | Texas Instruments | IC DIG PLL FILTER 16-DIP |
| sn74ls298d | Texas Instruments | IC QUAD 2IN MUX W/STORAGE 16SOIC |
| sn74ls298de4 | Texas Instruments | IC QUAD 2IN MUX W/STORAGE 16SOIC |
| sn74ls298dg4 | Texas Instruments | IC MULTIPLEXER SINGLE 16SOIC |
| sn74ls298dr | Texas Instruments | IC QUAD 2IN MUX W/STORAGE 16SOIC |
| sn74ls298dre4 | Texas Instruments | IC QUAD 2IN MUX W/STORAGE 16SOIC |
| sn74ls298drg4 | Texas Instruments | IC MULTIPLEXER SINGLE 16SOIC |
| sn74ls298n | Texas Instruments | IC QUAD 2-IN MUX W/STORAGE 16DIP |
| sn74ls298ne4 | Texas Instruments | IC QUAD 2-IN MUX W/STORAGE 16DIP |
| sn74ls299dw | Texas Instruments | IC UNIV SHIFT/STOR REG 20-SOIC |
| sn74ls299dwe4 | Texas Instruments | IC 8BIT UNV SHFT/STOR REG 20SOIC |
| sn74ls299dwg4 | Texas Instruments | IC REGISTER, MULTIPLEXED 20SOIC |
| sn74ls299dwr | Texas Instruments | IC UNIV SHIFT/STOR REG 20-SOIC |
| sn74ls299dwre4 | Texas Instruments | IC 8BIT UNV SHFT/STOR REG 20SOIC |
| sn74ls299dwrg4 | Texas Instruments | IC REGISTER, MULTIPLEXED 20SOIC |
| sn74ls299n | Texas Instruments | IC UNIV SHIFT/STOR REG 20-DIP |
| sn74ls299ne4 | Texas Instruments | IC UNIV SHIFT/STOR REG 20-DIP |
| sn74ls30d | Texas Instruments | IC 8-IN POS-NAND GATE 14-SOIC |
| sn74ls30de4 | Texas Instruments | IC 8-IN POS-NAND GATE 14-SOIC |
| sn74ls30dg4 | Texas Instruments | IC 8-IN POS-NAND GATE 14-SOIC |
| sn74ls30dr | Texas Instruments | IC GATE NAND 8-INP 14SOIC |
| sn74ls30dr | Texas Instruments | IC GATE NAND 8-INP 14SOIC |
| sn74ls30dr | Texas Instruments | IC GATE NAND 8-INP 14SOIC |
| sn74ls30dre4 | Texas Instruments | IC 8-IN POS-NAND GATE 14-SOIC |
| sn74ls30drg4 | Texas Instruments | IC 8-IN POS-NAND GATE 14-SOIC |
| sn74ls30n | Texas Instruments | IC 8-IN NAND GATE 14-DIP |
| sn74ls30ne4 | Texas Instruments | IC 8-IN NAND GATE 14-DIP |
| sn74ls30nsr | Texas Instruments | IC GATE NAND 8-INP 14SOP |
| sn74ls30nsr | Texas Instruments | IC GATE NAND 8-INP 14SOP |
| sn74ls30nsr | Texas Instruments | IC GATE NAND 8-INP 14SOP |
| sn74ls30nsre4 | Texas Instruments | IC 8-IN POS-NAND GATE 14-SOP |
| sn74ls30nsrg4 | Texas Instruments | IC 8-IN POS-NAND GATE 14-SO |
| sn74ls31d | Texas Instruments | IC HEX DELAY ELEMENT 16-SOIC |
| sn74ls31de4 | Texas Instruments | IC HEX DELAY ELEMENT 16-SOIC |
| sn74ls31dg4 | Texas Instruments | IC DELAY ELEMENT 16SOIC |
| sn74ls31dr | Texas Instruments | IC HEX DELAY ELEMENT 16-SOIC |
| sn74ls31dre4 | Texas Instruments | IC HEX DELAY ELEMENT 16-SOIC |
| sn74ls31drg4 | Texas Instruments | IC DELAY ELEMENT 16SOIC |
| sn74ls31n | Texas Instruments | IC HEX DELAY ELEMENT 16-DIP |
| sn74ls31ne4 | Texas Instruments | IC HEX DELAY ELEMENT 16-DIP |
| sn74ls31nsr | Texas Instruments | IC HEX DELAY ELEMENT 16-SOP |
| sn74ls31nsre4 | Texas Instruments | IC HEX DELAY ELEMENT 16-SOP |