These Schottky TTL eight-bit universal registers feature multiplexed inputs/outputs to achieve full eight-bit data handling in a single 20-pin package. Two function-select inputs and two output-control inputs can be used to choose the modes of operation listed in the function table.
Synchronous parallel loading is accomplished by taking both function-select lines, S0 and S1, high. This places the three-state outputs in a high-impedance state, which permits data that is applied on the input/output lines to be clocked into the register. Reading out of the register can be accomplished while the outputs are enabled in any mode. A direct overriding input is provided to clear the register whether the outputs are enabled or off
| SN74LS293 | |
| Technology Family | LS |
| Rating | Catalog |
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74LS293DW | ACTIVE | 0 to 70 | 3.20 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS293DWE4 | ACTIVE | 0 to 70 | 3.20 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS293DWG4 | ACTIVE | 0 to 70 | 3.20 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS293N | ACTIVE | 0 to 70 | 2.90 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN74LS293NE4 | ACTIVE | 0 to 70 | 2.90 | 1ku | PDIP (N) | 20 | 20 | TUBE |
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| SN74LS293DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS293DW | SN74LS293DW |
| SN74LS293DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS293DWE4 | SN74LS293DWE4 |
| SN74LS293N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS293N | SN74LS293N |
| SN74LS293N3 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS293NE3 | SN74LS293N3 |
| SN74LS293NE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS293NE4 | SN74LS293NE4 |
