SN74AS74A 具有清零和预设功能的双路上升沿 D 类触发器
These devices contain two independent positive-edge-triggered D-type flip-flops. A low level at the preset (
) or clear (
) inputs sets or resets the outputs regardless of the levels of the other inputs. When and are inactive (high), data at the data (D) input meeting the setup-time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs.
The SN54ALS74A and SN54AS74A are characterized for operation over the full military temperature range of -55°C to 125°C
| SN74AS74A | |
| Voltage Nodes(V) | 5 |
| Rating | Catalog |
SN74AS74A 特性
- Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs
SN74AS74A 芯片订购指南
| 器件 | 状态 | 温度 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74AS74ADBLE | OBSOLETE | -40 to 85 | SSOP (DB) | 14 | |||
| SN74AS74ADBR | ACTIVE | -40 to 85 | 0.40 | 1ku | SSOP (DB) | 14 | 2000 | LARGE T&R | |
| SN74AS74ADBRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SSOP (DB) | 14 | 2000 | LARGE T&R | |
| SN74AS74ADW | ACTIVE | -40 to 85 | 0.43 | 1ku | SOIC (D) | 14 | 25 | TUBE | |
| SN74AS74ADWE4 | ACTIVE | -40 to 85 | 0.43 | 1ku | SOIC (D) | 14 | 25 | TUBE | |
| SN74AS74ADWG4 | ACTIVE | -40 to 85 | 0.43 | 1ku | SOIC (D) | 14 | 25 | TUBE | |
| SN74AS74ADWR | ACTIVE | -40 to 85 | 0.36 | 1ku | SOIC (D) | 14 | 2000 | LARGE T&R | |
| SN74AS74ADWRE4 | ACTIVE | -40 to 85 | 0.36 | 1ku | SOIC (D) | 14 | 2000 | LARGE T&R | |
| SN74AS74ADWRG4 | ACTIVE | -40 to 85 | 0.36 | 1ku | SOIC (D) | 14 | 2000 | LARGE T&R | |
| SN74AS74AN | ACTIVE | -40 to 85 | 0.40 | 1ku | PDIP (N) | 14 | 20 | TUBE | |
| SN74AS74ANE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | PDIP (N) | 14 | 20 | TUBE | |
| SN74AS74ANSR | ACTIVE | -40 to 85 | 0.40 | 1ku | SO (NS) | 14 | 2000 | LARGE T&R | |
| SN74AS74ANSRE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SO (NS) | 14 | 2000 | LARGE T&R | |
| SN74AS74ANSRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SO (NS) | 14 | 2000 | LARGE T&R | |
| SN74AS74APW | ACTIVE | -40 to 85 | 0.43 | 1ku | TSSOP (PW) | 14 | 70 | TUBE | |
| SN74AS74APWE4 | ACTIVE | -40 to 85 | 0.43 | 1ku | TSSOP (PW) | 14 | 70 | TUBE | |
| SN74AS74APWG4 | ACTIVE | -40 to 85 | 0.43 | 1ku | TSSOP (PW) | 14 | 70 | TUBE | |
| SN74AS74APWLE | OBSOLETE | -40 to 85 | TSSOP (PW) | 14 | |||
| SN74AS74APWR | ACTIVE | -40 to 85 | 0.36 | 1ku | TSSOP (PW) | 14 | 2000 | LARGE T&R | |
| SN74AS74APWRE4 | ACTIVE | -40 to 85 | 0.36 | 1ku | TSSOP (PW) | 14 | 2000 | LARGE T&R | |
| SN74AS74APWRG4 | ACTIVE | -40 to 85 | 0.36 | 1ku | TSSOP (PW) | 14 | 2000 | LARGE T&R |
SN74AS74A 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 |
| SN74AS74ADBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ADBR | SN74AS74ADBR |
| SN74AS74ADBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ADBRG4 | SN74AS74ADBRG4 |
| SN74AS74ADW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ADW | SN74AS74ADW |
| SN74AS74ADWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ADWE4 | SN74AS74ADWE4 |
| SN74AS74ADWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ADWG4 | SN74AS74ADWG4 |
| SN74AS74ADWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ADWR | SN74AS74ADWR |
| SN74AS74ADWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ADWRE4 | SN74AS74ADWRE4 |
| SN74AS74ADWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ADWRG4 | SN74AS74ADWRG4 |
| SN74AS74AN | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74AS74AN | SN74AS74AN |
| SN74AS74ANE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74AS74ANE4 | SN74AS74ANE4 |
| SN74AS74ANSR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ANSR | SN74AS74ANSR |
| SN74AS74ANSRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ANSRE4 | SN74AS74ANSRE4 |
| SN74AS74ANSRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74ANSRG4 | SN74AS74ANSRG4 |
| SN74AS74APW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74APW | SN74AS74APW |
| SN74AS74APWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74APWE4 | SN74AS74APWE4 |
| SN74AS74APWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74APWG4 | SN74AS74APWG4 |
| SN74AS74APWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74APWR | SN74AS74APWR |
| SN74AS74APWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74APWRE4 | SN74AS74APWRE4 |
| SN74AS74APWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AS74APWRG4 | SN74AS74APWRG4 |
SN74AS74A 应用技术支持与电子电路设计开发资源下载
- SN74AS74A 数据资料 dataSheet 下载.PDF
- TI 德州仪器触发器/锁存器/寄存器产品选型与价格 . xls
- 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)