The CD74HCT574 is an octal D-type flip-flop with 3-state outputs and the capability to drive 15 LSTTL loads. The eight edge-triggered flip-flops enter data into their registers on the low-to-high transition of the clock (CP). The output enable (OE) controls the 3-state outputs and is independent of the register operation. When OE is high, the outputs are in the high-impedance state.

• Qualified for Automotive Applications
• Buffered Inputs
• Common 3-State Output-Enable Control
• 3-State Outputs
• Bus-Line Driving Capability
• Typical Propagation Delay (Clock to Q): 15 ns at VCC = 5 V, CL = 15 pF, TA = 25°C
• Fanout (Over Temperature Range)
  • Standard Outputs . . . 10 LSTTL Loads
  • Bus Driver Outputs . . . 15 LSTTL Loads
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL Logic ICs
• VCC Voltage = 4.5 V to 5.5 V
• Direct LSTTL Input Logic Compatibility, VIL = 0.8 V (Max), VIH = 2 V (Min)
• CMOS Input Compatibility, Il ≤ 1 μA at VOL, VOH

• Number of channels (#)
• 8
• Technology Family
• HCT
• Supply voltage (Min) (V)
• 4.5
• Supply voltage (Max) (V)
• 5.5
• Input type
• TTL-Compatible CMOS
• Output type
• 3-State
• Clock Frequency (Max) (MHz)
• 25
• IOL (Max) (mA)
• 6
• IOH (Max) (mA)
• -6
• ICC (Max) (uA)
• 80
• Features
• Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode

CD74HCT574-Q1的完整型号有：CD74HCT574QM96G4Q1、CD74HCT574QPWRG4Q1，以下是这些产品的关键参数及官网采购报价：

CD74HCT574QM96G4Q1，工作温度：-40 to 125，封装：SOIC (DW)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD74HCT574QM96G4Q1的批量USD价格：.239（1000+）

CD74HCT574QPWRG4Q1，工作温度：-40 to 125，封装：TSSOP (PW)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD74HCT574QPWRG4Q1的批量USD价格：.222（1000+）

14-24-LOGIC-EVM — 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。