CD74HC147 高速 CMOS 逻辑 10 至 4 线优先级编码器
The ’HC147 and CD74HCT147 are high speed silicon-gate CMOS devices and are pin-compatible with low power Schottky TTL (LSTTL).
The ’HC147 and CD74HCT147 9-input priority encoders accept data from nine active LOW inputs (l1 to l9) and provide binary representation on the four active LOW inputs (Y0\ to Y3\). A priority is assigned to each input so that when two or more inputs are simultaneously active, the input with the highest priority is represented on the output, with input line l9 having the highest priority.
These devices provide the 10-line to 4-line priority encoding function by use of the implied decimal "zero". The "zero" is encoded when all nine data inputs are HIGH, forcing all four outputs HIGH
| CD74HC147 | |
| Rating | Catalog |
| Technology Family | HC |
CD74HC147 特性
- Buffered Inputs and Outputs
- Typical Propagation Delay: 13ns at VCC = 5V, CL = 15pF, TA = 25°C
- Fanout (Over Temperature Range)
- Standard Outputs...10 LSTTL Loads
- Bus Driver Outputs...15 LSTTL Loads
- Wide Operating Temperature Range... –55°C to 125°C
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
- HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il
1uA at VOL, VOH
CD74HC147 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 |
| CD74HC147E | ACTIVE | -55 to 125 | 0.37 | 1ku | PDIP (N) | 16 | 25 | TUBE | |
| CD74HC147EE4 | ACTIVE | -55 to 125 | 0.37 | 1ku | PDIP (N) | 16 | 25 | TUBE | |
| CD74HC147M | ACTIVE | -55 to 125 | 0.34 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| CD74HC147M96 | ACTIVE | -55 to 125 | 0.29 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| CD74HC147M96E4 | ACTIVE | -55 to 125 | 0.29 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| CD74HC147M96G4 | ACTIVE | -55 to 125 | 0.29 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| CD74HC147ME4 | ACTIVE | -55 to 125 | 0.34 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| CD74HC147MG4 | ACTIVE | -55 to 125 | 0.34 | 1ku | SOIC (D) | 16 | 40 | TUBE |
CD74HC147 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 |
| CD74HC147E | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | CD74HC147E | CD74HC147E |
| CD74HC147EE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | CD74HC147EE4 | CD74HC147EE4 |
| CD74HC147M | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74HC147M | CD74HC147M |
| CD74HC147M96 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74HC147M96 | CD74HC147M96 |
| CD74HC147M96E4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74HC147M96E4 | CD74HC147M96E4 |
| CD74HC147M96G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74HC147M96G4 | CD74HC147M96G4 |
| CD74HC147ME4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74HC147ME4 | CD74HC147ME4 |
| CD74HC147MG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74HC147MG4 | CD74HC147MG4 |
CD74HC147 应用技术支持与电子电路设计开发资源下载
- CD74HC147 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)