SN74LS42 4 线路 BCD 至 10 线路十进制解码器
These monolithic BCD-to-decimal decoders consist of eight inverters and ten four-input NAND gates. The inverters are connected in pairs to make BCD input data available for decoding by the NAND gates. Full decoding of valid input logic ensures that all outputs remain off for all invalid input conditions.
The '42A and 'LS42 feature inputs and outputs that are compatible for use with most TTL and other saturated low-level logic circuits. DC noise margins are typically one volt.
The SN5442A and SN54LS42 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN7442A and SN74LS42 are characterized for operation from 0°C to 70°C
| SN74LS42 | |
| Rating | Catalog |
| Technology Family | LS |
SN74LS42 特性
- All Outputs Are High for Invalid Input Conditions
- Also for Application as
- 4-Line-to-16-Line Decoders
- 3-Line-to-8-Line Decoders
- Diode-Clamped Inputs
SN74LS42 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 |
| SN74LS42D | ACTIVE | -40 to 85 | 0.21 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS42DE4 | ACTIVE | -40 to 85 | 0.21 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS42DG4 | ACTIVE | -40 to 85 | 0.21 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| SN74LS42DR | ACTIVE | -40 to 85 | 0.17 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS42DRE4 | ACTIVE | -40 to 85 | 0.17 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS42DRG4 | ACTIVE | -40 to 85 | 0.17 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| SN74LS42N | ACTIVE | -40 to 85 | 0.18 | 1ku | PDIP (N) | 16 | 25 | TUBE | |
| SN74LS42NE4 | ACTIVE | -40 to 85 | 0.18 | 1ku | PDIP (N) | 16 | 25 | TUBE |
SN74LS42 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 |
| SN74LS42D | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS42D | SN74LS42D |
| SN74LS42DE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS42DE4 | SN74LS42DE4 |
| SN74LS42DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS42DG4 | SN74LS42DG4 |
| SN74LS42DR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS42DR | SN74LS42DR |
| SN74LS42DRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS42DRE4 | SN74LS42DRE4 |
| SN74LS42DRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS42DRG4 | SN74LS42DRG4 |
| SN74LS42N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS42N | SN74LS42N |
| SN74LS42NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS42NE4 | SN74LS42NE4 |
SN74LS42 应用技术支持与电子电路设计开发资源下载
- SN74LS42 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)
