CD74FCT244_TI 具有 TTL 兼容型 CMOS 输入和三态输出的 8 通道 4.75V 至 5.25V 缓冲器

CD74FCT244的基本参数

制造厂商：TI
产品类别：逻辑和电压转换
技术类目：缓冲器、驱动器和收发器 - 同相缓冲器和驱动器
功能描述：具有 TTL 兼容型 CMOS 输入和三态输出的 8 通道 4.75V 至 5.25V 缓冲器
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CD74FCT244的产品详情：

The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below V_CC. This resultant lowering of output swing (0 V to 3.7 V) reduces the 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 64 mA.

These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, 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_CCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

CD74FCT244的优势和特性：

BiCMOS Technology With Low Quiescent Power
Buffered Inputs
Noninverted Outputs
Input/Output Isolation From VCC
Controlled Output Edge Rates
64-mA Output Sink Current
Output Voltage Swing Limited to 3.7 V
SCR Latch-Up-Resistant BiCMOS Process and Circuit Design

CD74FCT244的参数（英文）：

Technology Family
FCT
Supply voltage (Min) (V)
4.75
Supply voltage (Max) (V)
5.25
Number of channels (#)
8
IOL (Max) (mA)
64
ICC (Max) (uA)
80
IOH (Max) (mA)
-15
Input type
TTL-Compatible CMOS
Output type
3-State
Features
Very high speed (tpd 5-10ns), Over-voltage tolerant inputs
Rating
Catalog

CD74FCT244具体的完整产品型号参数及价格（美元）：

CD74FCT244的完整型号有：CD74FCT244E、CD74FCT244M、CD74FCT244M96，以下是这些产品的关键参数及官网采购报价：

CD74FCT244E，工作温度：0 to 70，封装：PDIP (N)-20，包装数量MPQ：20个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网CD74FCT244E的批量USD价格：.328（1000+）

CD74FCT244M，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CD74FCT244M的批量USD价格：.371（1000+）

CD74FCT244M96，工作温度：0 to 70，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CD74FCT244M96的批量USD价格：.314（1000+）

CD74FCT244的评估套件：

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。

CD74FCT244的电路图解：

CD74FCT244的评估套件：