SN74AHC574 具有三态输出的八路边沿 D 类触发器
The ’AHC574 devices are octal edge-triggered D-type flip-flops that feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. These devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels of the data (D) inputs.
A buffered output-enable (OE)\ input places the eight outputs in either a normal logic state (high or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without interface or pullup components
| SN74AHC574 | |
| Voltage Nodes(V) | 5, 3.3 |
| Rating | Catalog |
SN74AHC574 特性
- Operating Range 2-V to 5.5-V VCC
- 3-State Outputs Drive Bus Lines Directly
- Latch-Up Performance Exceeds 250 mA Per JESD 17
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
SN74AHC574 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 |
| SN74AHC574DBLE | OBSOLETE | -40 to 85 | SSOP (DB) | 20 | |||
| SN74AHC574DBR | ACTIVE | -40 to 85 | 0.44 | 1ku | SSOP (DB) | 20 | 2000 | LARGE T&R | |
| SN74AHC574DBRE4 | ACTIVE | -40 to 85 | 0.44 | 1ku | SSOP (DB) | 20 | 2000 | LARGE T&R | |
| SN74AHC574DBRG4 | ACTIVE | -40 to 85 | 0.44 | 1ku | SSOP (DB) | 20 | 2000 | LARGE T&R | |
| SN74AHC574DW | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74AHC574DWE4 | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74AHC574DWG4 | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74AHC574DWR | ACTIVE | -40 to 85 | 0.40 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74AHC574DWRE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74AHC574DWRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74AHC574N | ACTIVE | -40 to 85 | 0.44 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN74AHC574NE4 | ACTIVE | -40 to 85 | 0.44 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN74AHC574NSR | ACTIVE | -40 to 85 | 0.44 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74AHC574NSRE4 | ACTIVE | -40 to 85 | 0.44 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74AHC574NSRG4 | ACTIVE | -40 to 85 | 0.44 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74AHC574PW | ACTIVE | -40 to 85 | 0.48 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74AHC574PWE4 | ACTIVE | -40 to 85 | 0.48 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74AHC574PWG4 | ACTIVE | -40 to 85 | 0.48 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74AHC574PWLE | OBSOLETE | -40 to 85 | TSSOP (PW) | 20 | |||
| SN74AHC574PWR | ACTIVE | -40 to 85 | 0.40 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R | |
| SN74AHC574PWRE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R | |
| SN74AHC574PWRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R |
SN74AHC574 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 |
| SN74AHC574DBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DBR | SN74AHC574DBR |
| SN74AHC574DBRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DBRE4 | SN74AHC574DBRE4 |
| SN74AHC574DBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DBRG4 | SN74AHC574DBRG4 |
| SN74AHC574DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DW | SN74AHC574DW |
| SN74AHC574DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DWE4 | SN74AHC574DWE4 |
| SN74AHC574DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DWG4 | SN74AHC574DWG4 |
| SN74AHC574DWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DWR | SN74AHC574DWR |
| SN74AHC574DWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DWRE4 | SN74AHC574DWRE4 |
| SN74AHC574DWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574DWRG4 | SN74AHC574DWRG4 |
| SN74AHC574N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74AHC574N | SN74AHC574N |
| SN74AHC574NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74AHC574NE4 | SN74AHC574NE4 |
| SN74AHC574NSR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574NSR | SN74AHC574NSR |
| SN74AHC574NSRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574NSRE4 | SN74AHC574NSRE4 |
| SN74AHC574NSRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574NSRG4 | SN74AHC574NSRG4 |
| SN74AHC574PW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574PW | SN74AHC574PW |
| SN74AHC574PWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574PWE4 | SN74AHC574PWE4 |
| SN74AHC574PWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574PWG4 | SN74AHC574PWG4 |
| SN74AHC574PWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574PWR | SN74AHC574PWR |
| SN74AHC574PWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574PWRE4 | SN74AHC574PWRE4 |
| SN74AHC574PWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74AHC574PWRG4 | SN74AHC574PWRG4 |
SN74AHC574 应用技术支持与电子电路设计开发资源下载
- SN74AHC574 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)