SN54HC574 具有三态输出的八路 D 类边沿触发器
These octal edge-triggered D-type flip-flops feature 3-state outputs designed specifically for bus driving. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The eight flip-flops enter data on the low-to-high transition of the clock (CLK) input.
A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) 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 increased drive provide the capability to drive bus lines without interface or pullup components.
OE\ does not affect the internal operations of the flip-flops
| SN54HC574 | |
| Voltage Nodes(V) | 6, 5, 2 |
| Rating | Military |
SN54HC574 特性
- Wide Operating Voltage Range of 2 V to 6 V
- High-Current 3-State Noninverting Outputs Drive Bus Lines Directly or Up To 15 LSTTL Loads
- Low Power Consumption, 80-µA Max ICC
- Typical tpd = 22 ns
- ±6-mA Output Drive at 5 V
- Low Input Current of 1 µA Max
- Bus-Structured Pinout
SN54HC574 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 |
| SNJ54HC574FK | ACTIVE | -55 to 125 | 9.75 | 1ku | LCCC (FK) | 20 | 1 | TUBE | |
| SNJ54HC574J | ACTIVE | -55 to 125 | 5.95 | 1ku | CDIP (J) | 20 | 1 | TUBE | |
| SNJ54HC574WD | ACTIVE | -55 to 125 | 10.35 | 1ku | CFP (W) | 20 | 1 | TUBE |
SN54HC574 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 |
| SNJ54HC574FK | TBD | POST-PLATE | N/A for Pkg Type | SNJ54HC574FK | SNJ54HC574FK |
| SNJ54HC574J | TBD | A42 | N/A for Pkg Type | SNJ54HC574J | SNJ54HC574J |
| SNJ54HC574WD | TBD | Call TI | N/A for Pkg Type | SNJ54HC574WD | SNJ54HC574WD |
SN54HC574 应用技术支持与电子电路设计开发资源下载
- SN54HC574 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)
