SN74LS253 具有三态输出的双路 4 线路至 1 线路数据选择器/多路复用器
Each of these Schottky-clamped data selectors/multiplexers contains inverters and drivers to supply fully complementary, on-chip, binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two four-line sections.
The three-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state) the low-impedance of the single enabled output will drive the bus line to a high or low logic level
| SN74LS253 | |
| Rating | Catalog |
| Technology Family | LS |
SN74LS253 特性
- Three-State Version of SN54/74LS153, SN54/74S153
- Schottky-Diode-Clamped Transistors
- Permits Multiplexing from N Lines to 1 Line
- Performs Parallel-to Serial Conversion
- Fully Compatible with Most TTL Circuits
- Low Power Dissipation
- 'LS253 … 35 mW Typical
- 'S253 … 225 mW Typical
SN74LS253 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 |
| SN74LS253D | ACTIVE | 0 to 70 | 0.95 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS253DE4 | ACTIVE | 0 to 70 | 0.95 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS253DG4 | ACTIVE | 0 to 70 | 0.95 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS253DR | ACTIVE | 0 to 70 | 0.80 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS253DRE4 | ACTIVE | 0 to 70 | 0.80 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS253DRG4 | ACTIVE | 0 to 70 | 0.80 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS253N | ACTIVE | 0 to 70 | 0.90 | 1ku | PDIP (N) | 16 | 25 | TUBE | |
| SN74LS253NE4 | ACTIVE | 0 to 70 | 0.90 | 1ku | PDIP (N) | 16 | 25 | TUBE |
SN74LS253 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 |
| SN74LS253D | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS253D | SN74LS253D |
| SN74LS253DE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS253DE4 | SN74LS253DE4 |
| SN74LS253DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS253DG4 | SN74LS253DG4 |
| SN74LS253DR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS253DR | SN74LS253DR |
| SN74LS253DRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS253DRE4 | SN74LS253DRE4 |
| SN74LS253DRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS253DRG4 | SN74LS253DRG4 |
| SN74LS253N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS253N | SN74LS253N |
| SN74LS253NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS253NE4 | SN74LS253NE4 |
SN74LS253 应用技术支持与电子电路设计开发资源下载
- SN74LS253 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)