CD74AC161 具有异步复位的同步可预设的二进制计数器
The ’AC161 devices are 4-bit binary counters. These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting These devices are fully programmable; that is, they can be preset to any number between 0 and 9 or 15. Presetting is synchronous; therefore, setting up a low level at the load input disables the counter and causes the outputs to agree with the setup data after the next clock pulse, regardless of the levels of the enable inputs.
The clear function is asynchronous. A low level at the clear (CLR)\ input sets all four of the flip-flop outputs low, regardless of the levels of the CLK, load (LOAD)\, or enable inputs.
The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications without additional gating
| CD74AC161 | |
| Rating | Catalog |
| Technology Family | AC |
CD74AC161 特性
- Internal Look-Ahead for Fast Counting
- Carry Output for n-Bit Cascading
- Synchronous Counting
- Synchronously Programmable
- SCR-Latchup-Resistant CMOS Process and Circuit Design
- Exceeds 2-kV ESD Protection per MIL-STD-883, Method 3015
CD74AC161 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 |
| CD74AC161E | ACTIVE | -55 to 125 | 0.39 | 1ku | PDIP (N) | 16 | 25 | TUBE | |
| CD74AC161EE4 | ACTIVE | -55 to 125 | 0.39 | 1ku | PDIP (N) | 16 | 25 | TUBE | |
| CD74AC161M | ACTIVE | -55 to 125 | 0.42 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| CD74AC161M96 | ACTIVE | -55 to 125 | 0.35 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| CD74AC161M96E4 | ACTIVE | -55 to 125 | 0.35 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| CD74AC161M96G4 | ACTIVE | -55 to 125 | 0.35 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| CD74AC161ME4 | ACTIVE | -55 to 125 | 0.42 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| CD74AC161MG4 | ACTIVE | -55 to 125 | 0.42 | 1ku | SOIC (D) | 16 | 40 | TUBE |
CD74AC161 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 |
| CD74AC161E | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | CD74AC161E | CD74AC161E |
| CD74AC161EE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | CD74AC161EE4 | CD74AC161EE4 |
| CD74AC161M | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74AC161M | CD74AC161M |
| CD74AC161M96 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74AC161M96 | CD74AC161M96 |
| CD74AC161M96E4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74AC161M96E4 | CD74AC161M96E4 |
| CD74AC161M96G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74AC161M96G4 | CD74AC161M96G4 |
| CD74AC161ME4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74AC161ME4 | CD74AC161ME4 |
| CD74AC161MG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CD74AC161MG4 | CD74AC161MG4 |
CD74AC161 应用技术支持与电子电路设计开发资源下载
- CD74AC161 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)