N74F244D,623 Integrated Circuits (ICs)

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The N74F244D, 623 are fast, low-power and low-input-current logic buffers, drivers, receivers, and transceivers, popularly known as F244D. This type of components is commonly used in communications, networking, industrial, and other applications.

The N74F244D, 623 is a logic buffer that provides a two-stage, open-drain, 3-state output. The outputs are capable of sinking up to 10mA of current, and are driven by a low-power TTL-compatible logic drive (Vohm=3.0V). The inputs are TTL compatible, and typically require 2.5V for a logic low and 0.8V for a logic high. The component is capable of operating at temperatures up to 125C.

The N74F244D, 623 is designed to drive three-state logic buses, or to isolate and protect a 3-state output. It can be used as a single-bit buffer, normally used in communications and networking applications. It can also be used as a logic transceiver, providing low-voltage compatibility for 3-state busses on long-distance cables or multi-level systems. The component is also used for multiplexing and bus arbitration systems.

In addition to its many uses, the N74F244D, 623 is also known for its speed and low power consumption. It can be operated up to a 25MHz maximum clock rate and is rated at a power supply voltage between Vcc=2.7V to Vcc=6.0V. It also has an impressive power dissipation rating – up to 1.2 watts at 25MHz.

The N74F244D, 623 is available in a variety of packages, including SOIC, TSOP, QSOP, and DIP. For applications involving long lines and/or fast switching speeds, N74F244D, 623 is also available in a version with internal Schottky diode clamping on all eight outputs.

The working principle of the N74F244D, 623 is simple. The component consists of eight 2-input buffers, each with a TTL-compatible input and an open-drain, 3-state output. The inputs are connected to different logic levels, which determines the logic state at the output. The logic state of a particular output is determined by the logic levels at the inputs. When both inputs are low, the output is low; when both inputs are high, the output is high; and when one input is high and one is low, the output is disabled (tri-stated).

This simple but versatile device has made the N74F244D, 623 very popular for its many applications in communications, networking, industrial, and other applications. It is used as a logic buffer to drive 3-state busses, to isolate and protect a 3-state output, or to multiplex and control the logic states of multiple channels in a circuit. Its low power consumption and high speed make it ideal for high-speed, low-power applications.

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