- 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
- 点击这里打开及下载CD74FCT244AT的技术文档资料
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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 VCC. 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 VCC 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 VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
- 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
- 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
CD74FCT244AT的完整型号有：CD74FCT244ATE、CD74FCT244ATM、CD74FCT244ATM96，以下是这些产品的关键参数及官网采购报价：
CD74FCT244ATE，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CD74FCT244ATE的批量USD价格：0.328（1000+）
CD74FCT244ATM，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CD74FCT244ATM的批量USD价格：0.371（1000+）
CD74FCT244ATM96，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CD74FCT244ATM96的批量USD价格：0.314（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。
