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Onsemi MM74HCT244WM Environmental and export classification status description

The OnsemiMM74HCT244WM is a high-speed CMOS octal bus buffer featuring tri-state outputs, designed to provide high performance and compatibility with TTL interfaces. It comes in a 20-pin wide SOIC package and is commonly used in electronic circuits requiring signal buffering and line driving capabilities. Functions: 1. Octal Buffer: Provides buffering for up to eight input lines with high-speed operation. 2. Tri-state Output: Allows the device to disconnect from the bus, enabling multiple devices to share a common bus without interference. 3. Compatibility: Designed to be compatible with TTL inputs and outputs for ease of integration into existing designs. Applications: - Digital Systems: Used for buffering and line driving in digital circuits such as microcontrollers, FPGAs, and memory interfaces. - Bus Communication: Facilitates data transfer between multiple components on a bus system. - Level Shifting: Allows for interfacing between components operating at different voltage levels. Alternative Components: 1. SN74HCT244N: Another octal bus buffer with tri-state outputs from Texas Instruments. 2. 74HC244: A similar octal buffer IC from various manufacturers like NXP, STMicroelectronics, and others. Embedded Modules: - Level Shifters: Some versions of the OnsemiMM74HCT244WM may include level shifting capabilities for interfacing between different voltage domains. - Overvoltage Protection: Embedded circuitry for protecting the device from voltage spikes or overvoltage conditions. Related Q&A: 1. Can the OnsemiMM74HCT244WM drive LEDs directly? - The OnsemiMM74HCT244WM can drive LEDs indirectly by providing the necessary signal buffering and current sourcing capabilities. A current-limiting resistor should be used in series with the LED to protect both the LED and the IC. 2. What is the maximum operating frequency supported by the OnsemiMM74HCT244WM? - The maximum operating frequency of the OnsemiMM74HCT244WM is typically in the range of tens to hundreds of megahertz, depending on the specific operating conditions and load capacitance. 3. Can multiple OnsemiMM74HCT244WM chips be connected in parallel on the same bus? - Yes, multiple OnsemiMM74HCT244WM chips can be connected in parallel on the same bus, thanks to their tri-state output feature, allowing multiple devices to share the bus without causing contention issues. 4. Does the OnsemiMM74HCT244WM require external decoupling capacitors for proper operation? - It is recommended to add decoupling capacitors near the power supply pins of the OnsemiMM74HCT244WM to filter out noise and ensure stable operation, especially in high-speed applications. 5. How does the OnsemiMM74HCT244WM compare to similar buffer ICs in terms of power consumption? - The OnsemiMM74HCT244WM, being a CMOS device, typically consumes low power compared to equivalent TTL buffers, making it suitable for applications requiring power efficiency.