SN74LV244APWG4

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The SN74LV244APWG4 (sub-family code: 74LV244A) is a part of the low voltage logic series from Texas Instruments. It is a high-performance, non-inverting, Octal drive and receiver buffer with tristate outputs. SN74LV244APWG4, like most other devices in Texas Instruments’ LV series, has the ability to operate at very low voltage levels while maintaining outstanding signal integrity.

The devices in the SN74LV244APWG4 family are designed to meet AC and DC specifications up to 3.6V and feature very low power consumption. It is an ideal choice for applications that require the transmission of data at high speeds while consuming minimal power. SN74LV244APWG4 devices are capable of providing up to 24mA of continuous current and are immune to latch-up.

SN74LV244APWG4 is also available in several packages, including SOIC and TSOP, for use in a variety of applications. It is also available with special features such as EIA/TIA-232 Compliance, Bus Hold for Hot Plugging, High Impedance State for Outputs, and Bus Oriented Various Voltage Interface USARTs.

Application Field

SN74LV244APWG4 provides an affordable, high performance solution for a variety of applications, including:

• General-purpose buffering
• Transmission of data at high speeds
• Bus oriented applications
• ADC and DAC drivers
• Interfacing of various voltage logic levels
• EIA/TIA-232 applications

Working Principle

SN74LV244APWG4 is an octal driver and receiver buffer with tristate outputs. It is used to drive a bus or line such that no more than one output of the chip is enabled at any given time. All signals connected to the driver’s outputs are driven to their complementary logic levels when the corresponding Enable input (ENA) is FALSE. When the connected Enable input is TRUE, all of the outputs are in the High Impedance State.

The device also has built-in output pull-ups to reduce bus voltage fluctuations. These are especially useful when using the circuit in bus-oriented applications such as EIA/TIA-232.

The device also includes internal Bus Hold circuitry for Hot Plugging applications. If the voltage of the input is less than the device’s lower logic threshold, the output does not go low, but remains in its previous state. This feature is particularly useful in EIA/TIA-232 applications, in which case the device will switch from its high logic output state to its low logic output state without requiring external pull-ups.

SN74LV244APWG4 has very low power consumption, making it ideal for applications with tight power budgets. It is available in various packages, including SOIC and TSOP, making it suitable for many different types of applications.

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