The CD74FCT374 is an octal, edge-triggered, D-type flip-flop that uses a small-geometry BiCMOS technology and features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. This device is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The output stage is a combination of bipolar and CMOS transistors that limits the output high level to two diode drops below V_CC. This resultant lowering of output swing (0 V to 3.7 V) reduces power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes V_CC bounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 48 mA.

The eight flip-flops enter data into their registers on the low-to-high transition of the clock (CLK). The output-enable (OE\) input controls the 3-state outputs and is independent of the register operation. When OE\ is high, the outputs are in the high-impedance state.

A buffered OE\ input can be used to place 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.

OE\ does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

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

The CD74FCT374 is characterized for operation from 0°C to 70°C.

• BiCMOS Technology With Low Quiescent Power
• 3-State Outputs Drive Bus Lines Directly
• Buffered Inputs
• Noninverted Outputs
• Input/Output Isolation From VCC
• Controlled Output Edge Rates
• 48-mA Output Sink Current
• Output Voltage Swing Limited to 3.7 V
• SCR Latch-Up-Resistant BiCMOS Process and Circuit Design
• Package Options Include Plastic Small-Outline (M) and Shrink Small-Outline (SM) Packages and Standard Plastic (E) DIP

• Number of channels (#)
• 8
• Technology Family
• FCT
• Supply voltage (Min) (V)
• 4.75
• Supply voltage (Max) (V)
• 5.25
• Input type
• TTL-Compatible CMOS
• Output type
• 3-State
• Clock Frequency (Max) (MHz)
• 70
• IOL (Max) (mA)
• 48
• IOH (Max) (mA)
• -15
• ICC (Max) (uA)
• 80
• Features
• Very high speed (tpd 5-10ns)

CD74FCT374的完整型号有：CD74FCT374M，以下是这些产品的关键参数及官网采购报价：

CD74FCT374M，工作温度：0 to 70，封装：SOIC (DW)-20，包装数量MPQ：25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CD74FCT374M的批量USD价格：.42（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。