SN74ALS244CNG4

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SN74ALS244CNG4 is an integrated circuit (IC) belonging to the Logic - Buffers, Drivers, Receivers and Transceivers category and is manufactured by Texas Instruments. It is a bipolar buffer and driver IC and provides a low-power output from a variety of input voltage sources. It has low threshold input and high-current outputs.

The SN74ALS244CNG4 is used for a variety of applications in a wide range of industries, including automotive, aerospace and military, industrial, consumer, and medical. It can be used to drive multiple loads, providing low-noise transmission of digital signals in buffering, bidirectional voltage translation, multiplex data bus selection, parity checking, and logic level conversion applications.

The SN74ALS244CNG4 is made up of four drivers which control an active output current of up to 20 mA allowing the transceiving of full TTL levels. The driver has an open collector which requires a pull-up resistor to supply a valid HIGH level on the output. The pull-up resistor may be external or on board. The chip features an active-low Output Enable input which can be used to disable all four drivers. The impedance of the Output Enable pin is relatively low and so the input does not need to be pulled up.

The device is composed of four individual sections, each with its own power supply pin: 3 VCC and 1 GND. The power supply range for VCC is between 2.7 to 6V and for GND it is between 0 to 0.3V. The power supply pins must be large enough to support the current required by the VCC and GND pins. The output mode has two states, push-pull and open-drain. In the push-pull mode the outputs are enabled when the enable input is HIGH and in the open-drain mode the outputs are enabled when the enable input is LOW. The outputs are always disabled when the enable input is HIGH.

The SN74ALS244CNG4 features Schmitt trigger inputs and hysteresis to prevent glitches. It utilizes a two-stage technique to reduce noise and reduce the timing jitter of the signals. The input and output circuit design is made such that the input and output impedance matched over all voltages, allowing high reliability and low power dissipation. It also includes a three-state option which is used to disable all of the outputs in the open-drain mode.

Due to its high reliability, low power dissipation, and wide voltage range the SN74ALS244CNG4 is an ideal device for multiple applications. Its small size and wide power supply range make it an excellent choice for space-constrained and low-power applications. It is also ideal for applications requiring fan-out, such as automotive and aerospace. In addition, its Schmitt trigger inputs and hysteresis make it a great choice for environments with high noise levels.

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