SN74LS157 四路 2 线路至 1 线路数据选择器/多路复用器
These monolithic data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four output gates. A separate strobe input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The ’157, ’LS157, and ’S157 present true data whereas the ’LS158 and ’S158 present inverted data to minimize propagation delay time.
| SN74LS157 | |
| Rating | Catalog |
| Technology Family | LS |
SN74LS157 特性
- Buffered Inputs and Outputs
- Three Speed/Power Ranges Available
- Applications
- Expand Any Data Input Point
- Multiplex Dual Data Buses
- Generate Four Functions of Two Variables (One Variable Is Common)
- Source Programmable Counters
SN74LS157 芯片订购指南
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74LS157D | ACTIVE | 0 to 70 | 0.95 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS157DE4 | ACTIVE | 0 to 70 | 0.95 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS157DG4 | ACTIVE | 0 to 70 | 0.95 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS157DR | ACTIVE | 0 to 70 | 0.80 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS157DRE4 | ACTIVE | 0 to 70 | 0.80 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS157DRG4 | ACTIVE | 0 to 70 | 0.80 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS157N | ACTIVE | 0 to 70 | 0.90 | 1ku | PDIP (N) | 16 | 25 | TUBE | |
| SN74LS157NE4 | ACTIVE | 0 to 70 | 0.90 | 1ku | PDIP (N) | 16 | 25 | TUBE |
SN74LS157 质量与无铅数据
| 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 |
| SN74LS157D | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS157D | SN74LS157D |
| SN74LS157DE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS157DE4 | SN74LS157DE4 |
| SN74LS157DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS157DG4 | SN74LS157DG4 |
| SN74LS157DR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS157DR | SN74LS157DR |
| SN74LS157DRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS157DRE4 | SN74LS157DRE4 |
| SN74LS157DRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS157DRG4 | SN74LS157DRG4 |
| SN74LS157N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS157N | SN74LS157N |
| SN74LS157NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS157NE4 | SN74LS157NE4 |
SN74LS157 应用技术支持与电子电路设计开发资源下载
- SN74LS157 数据资料 dataSheet 下载.PDF
- TI 德州仪器MSI 功能产品选型与价格 . xls
- Logic Guide 2009 (PDF 4263 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
- TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
- Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
- CMOS Power Consumption and CPD Calculation (PDF 89 KB)
- Designing With Logic (PDF 186 KB)
- Live Insertion (PDF 150 KB)
- Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
- Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)