SN74LS640-1NG4

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The SN74LS640-1NG4 is a logic device belonging to the category of Buffers, Drivers, Receivers, and Transceivers. This device offers a complete system solution for buffering, amplifying, and level shifting between any number of different voltage systems.

The SN74LS640-1NG4 is rated for a supply voltage range between 4.5V - 0V and also applies a Vcc- unregulated voltage. The maximum operating frequency of this device is 12MHz, and it is capable of providing up to three outputs with a load capacitance of 20pF.

This device is used in a variety of applications, including power supplies, circuit protection, and analog-to-digital converter interfaces. It is most commonly used in systems that require buffering between different signal levels, such as digital signal processing (DSP) and discretes.

The SN74LS640-1NG4 is a three-state device, which means that it has three signal states: high, low, and disabled. When a signal is enabled, the device is activated and it can then drive its output high or low depending on the input signal. When the signal is disabled, the output will remain in a high impedance state and the device will not interfere with other circuitry.

The SN74LS640-1NG4 is capable of driving either narrow-pulse or wide-pulse signals. It is designed for logic level conversions between two different voltage systems (Vcc+ to Vcc-), as well as for buffering, driving, and level shifting multiplexers, latches, and shift registers.

This device has multiple levels of protection against noise, transient voltage levels, and power surges. It includes an internal protective diode that prevents reverse voltage, a low power quiescent current circuit, and a Schmitt trigger, which has hysteresis characteristics that help mitigate noise sensitivity.

The SN74LS640-1NG4 can be used in a wide variety of applications, offering a reliable, high speed solution for level conversion between different voltage systems. Its low power consumption and functional safety features make it an ideal choice when reliability and safety are key considerations.

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