SN74LVC574A-Q1 汽车类具有三态输出的八路边沿 D 类触发器

The SN74LVC574A octal edge-triggered D-type flip-flop is designed for 2.7-V to 3.6-V VCC operation.

This device features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. It is 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 at the data (D) inputs.

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. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of thIs device as a translator in a mixed 3.3-V/5-V system environment

SN74LVC574A-Q1
Voltage Nodes(V) 3.3, 2.7  
Vcc range(V) 2.0 to 3.6  
Input Level TTL/CMOS  
Output Level LVTTL  
Output Drive(mA) -24/24  
No. of Outputs 8  
Static Current 0.01  
th(ns) 2  
tpd max(ns) 8  
tsu(ns) 2  
Logic True  
Technology Family LVC  
Rating Automotive
SN74LVC574A-Q1 特性
SN74LVC574A-Q1 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
CLVC574AQDWRG4Q1 ACTIVE -40 to 125 0.28 | 1ku SOIC (DW) | 20 2000  
CLVC574AQPWRG4Q1 ACTIVE -40 to 125 0.28 | 1ku TSSOP (PW) | 20 2000  
SN74LVC574AQDWRQ1 ACTIVE -40 to 125 0.28 | 1ku SOIC (DW) | 20 2000  
SN74LVC574AQPWRQ1 ACTIVE -40 to 125 0.28 | 1ku TSSOP (PW) | 20 2000  
SN74LVC574A-Q1 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
CLVC574AQDWRG4Q1 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CLVC574AQDWRG4Q1 CLVC574AQDWRG4Q1
CLVC574AQPWRG4Q1 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM CLVC574AQPWRG4Q1 CLVC574AQPWRG4Q1
SN74LVC574AQDWRQ1 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LVC574AQDWRQ1 SN74LVC574AQDWRQ1
SN74LVC574AQPWRQ1 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74LVC574AQPWRQ1 SN74LVC574AQPWRQ1
SN74LVC574A-Q1 应用技术支持与电子电路设计开发资源下载
  1. SN74LVC574A-Q1 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器触发器/锁存器/寄存器产品选型与价格 . xls
  3. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  4. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
  5. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
  6. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
  7. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
  8. Designing With Logic (PDF 186 KB)
  9. Live Insertion (PDF 150 KB)
  10. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
  11. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
  12. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  13. LOGIC Pocket Data Book (PDF 6001 KB)
  14. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  15. Logic Cross-Reference (PDF 2938 KB)