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74F151ASCX Specifications
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TypeParameter
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Supplier Device Package16-SOIC
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Package / Case16-SOIC (0.154", 3.90mm Width)
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Mounting TypeSurface Mount
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Operating Temperature0°C ~ 70°C
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Voltage - Supply4.5V ~ 5.5V
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Voltage Supply SourceSingle Supply
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Current - Output High, Low1mA, 20mA
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Independent Circuits1
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Circuit1 x 8:1
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TypeMultiplexer
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PackagingTape & Reel (TR)
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Product StatusObsolete
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Series74F
The TC74VHC138F(EL,K,F) is a 3-to-8 line decoder/demultiplexer integrated circuit chip. It has several advantages and application scenarios:1. Advantages: a. High-Speed Operation: The TC74VHC138F can operate at a high clock frequency, making it suitable for applications that require fast signal processing. b. Low Power Consumption: This chip consumes low power, making it ideal for battery-operated devices or applications where power efficiency is a concern. c. Wide Operating Voltage Range: The TC74VHC138F can operate within a wide voltage range, typically between 2.0V and 5.5V, allowing it to be compatible with various systems. d. High Output Drive Capability: It has a high output drive current that can provide sufficient drive strength to directly interface with other digital circuits or devices.2. Application Scenarios: a. Address Decoding: The TC74VHC138F is commonly used in microcontroller-based systems where multiple devices share a common bus. It decodes the input address to select a specific device or memory module, ensuring that the correct device responds to the microcontroller's requests. b. Data Demultiplexing: It can be used to demultiplex a single data input line into multiple output lines, where each output line corresponds to a specific select input. This is useful in applications like memory expansion, where a single data line is decoded to enable multiple memory modules. c. Keyboard Scanning: In keyboard-based systems, the TC74VHC138F can be used to scan multiple keys through row and column addressing. Each key press is encoded into a unique binary value that is then decoded by this chip to identify which key is pressed. d. Display Control: This chip can be used for enabling specific segments or common anodes/cathodes in a multi-digit display. By decoding a binary input, it selects the appropriate output line to control a specific digit or segment in the display.Overall, the TC74VHC138F is a versatile decoder/demultiplexer chip with advantages such as high speed, low power consumption, wide voltage range, and high output drive capability, making it suitable for various applications requiring address decoding, data demultiplexing, keyboard scanning, and display control.
74F151ASCX Relevant information