Intersil CD74FCT244M

缓冲器，非反向15mA，64mA4.75V ~ 5.25V

Overview

The CD74FCT244M 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.

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.

Features

74FCT Series
High Level Output: 64mA
Low Level Output: -15mA

4 Number of Bits per Element

Applications

There are a lot of Texas Instruments
CD74FCT244M Buffers & Transceivers applications.

• Satellite communications networks
• Ethernet circuitry
• Wired telephone
• Cordless telephone
• Desktop PC
• Notebook
• Pocket PC
• Desktop radio
• Clock radio
• Tuner