CD74HCT640E Logic - Buffers, Drivers, Receivers, Transceivers от Texas Instruments

Lifecycle status of the part, such as active or obsolete. Indicates availability and long-term support from the manufacturer. Check this before design-in to avoid last-time buys or supply disruptions. Verify with the datasheet or distributor for current status.

Specifies how the component is attached to the PCB, such as through-hole or surface mount. This affects assembly processes, thermal performance, and mechanical strength. Buyers should verify compatibility with their manufacturing capabilities and design requirements.

Current stage in the product's lifecycle, such as Active, Obsolete, or End of Life. This indicates availability and long-term supply risk. Check this before designing in a part to ensure it will be available for your product's production lifetime.

Indicates whether the component is manufactured without lead, complying with RoHS and similar regulations. Check this attribute to ensure environmental compliance for your market. Verify against the datasheet for exact material declarations.

Indicates the form of delivery for the component, such as tape and reel, tube, or tray. This affects handling, storage, and assembly processes. Verify the packaging type matches your production requirements and equipment compatibility.

Indicates the typical duration from order confirmation to shipment from the manufacturer's facility. This helps you plan production schedules and inventory. Verify current lead times with your distributor or supplier, as they may vary based on order quantity, product availability, and market conditions.

Lists the product categories or classifications assigned to this component, such as connectors, capacitors, or modules. This helps in filtering and comparing similar parts. Review the categories to ensure the component fits your application and to find alternative parts in the same class.

Position of the terminals on the package, such as dual-in-line, gull-wing, or J-lead. This affects PCB layout, soldering, and thermal performance. Engineers must ensure the terminal position matches the footprint and assembly capabilities of their manufacturing line.

Specifies the nominal operating voltage that must be applied to the component for proper function. Verify this value against your system's power rail and the datasheet's absolute maximum ratings to ensure reliable operation and avoid damage.

Manufacturing technology or process used for the component, such as thin film, thick film, or semiconductor process. Affects performance, stability, and cost. Confirm the technology matches your application requirements and environmental conditions.

Identifies the company that designed and produced the component. Buyers often filter by manufacturer to ensure brand reliability, quality standards, and supply chain consistency. Verify the manufacturer against the datasheet and official packaging to avoid counterfeit parts.

Specifies the ambient temperature range within which the component reliably functions. Compare this with your application's thermal environment to ensure proper operation. Always verify against the datasheet for derating curves and maximum ratings.

Specifies the physical length of the component body, typically in millimeters. This dimension is critical for PCB layout and mechanical fit. Verify against the datasheet to ensure proper clearance and alignment in your design.

Physical package or case type of the component, defining its dimensions, mounting style, and thermal characteristics. Common types include SMD, through-hole, BGA, and QFN. Choose the package that fits your PCB layout and assembly process. Verify the exact package code in the datasheet for footprint compatibility.

Specifies the physical weight of the electronic component, important for logistics, shipping cost, and mechanical design. Verify the exact weight in the datasheet or packaging information, as it may vary with packaging type and quantity.

Quiescent current is the current drawn by the device when it is in standby or no-load condition. It affects battery life in portable applications. Compare this value across similar components to ensure low power consumption. Always verify against the datasheet for your specific operating conditions.

Specifies whether the component or signal has a defined positive and negative orientation, such as for diodes, electrolytic capacitors, or connectors. Incorrect polarity can cause failure or unsafe operation. Always check the datasheet and board markings before installation.

A more specific classification within the main product category, such as 'Ceramic Capacitor' under 'Capacitors'. This helps narrow down search results and compare similar components. Use it to filter products with similar characteristics and intended applications.

Indicates the specific product subcategories or classifications within the broader component family. Helps narrow down search results and identify the exact type of component needed for your design. Review the subcategory to ensure compatibility with your application.

Specifies the metal coating applied to the contact surfaces of connectors, switches, or relays. This finish affects conductivity, corrosion resistance, and durability. Engineers should verify the plating material and thickness against the datasheet to ensure reliable performance in the intended environment.

Specifies the count of independent functions or channels integrated into a single component package. This helps engineers determine if the part can handle multiple signal paths or operations simultaneously. Verify against the datasheet to ensure the device meets your circuit's functional requirements.

Specifies the voltage range within which the component operates correctly. Check the datasheet to ensure your power supply meets the minimum and maximum limits, as exceeding them can damage the device or cause malfunction.

Indicates if the component is designed to withstand ionizing radiation in space, nuclear, or high-energy physics applications. Compare radiation-tolerant vs. radiation-hardened parts for mission-critical designs. Verify the total ionizing dose (TID) and single-event effect (SEE) ratings in the datasheet.

Indicates the total number of electrical connection points on the component, such as pins or pads. This is critical for PCB footprint design and assembly. Verify it matches the package specification to ensure proper soldering and connectivity.

Total number of pins or contacts on the component. This determines the footprint and mating connector requirements. Always match the pin count to your PCB layout and connector specification to ensure proper electrical and mechanical connection.

Total number of pins or terminals on the component package. Essential for footprint design, PCB layout, and connector mating. Verify against the datasheet to ensure compatibility with your board and assembly process.

Bit width of digital data processed by a converter, processor, or memory. Higher bits mean better resolution or precision. Verify against datasheet to match your system's data width and accuracy needs.

Indicates whether the component is lead-free per RoHS or other directives. Buyers use this to verify environmental compliance and avoid restricted substances. Always confirm with the datasheet or certificate of compliance.

Specifies how the component attaches to the PCB or assembly, such as surface mount, through-hole, or chassis mount. This affects soldering process, mechanical stability, and thermal performance. Verify compatibility with your board layout and assembly capabilities.

Physical height of the component, measured from the mounting surface to the topmost point. This dimension is critical for clearance in compact assemblies and for ensuring proper fit within enclosures. Always verify against the datasheet for tolerance and mounting considerations.

Physical width of the component body, typically in millimeters. Essential for PCB footprint design and mechanical fit. Verify against the datasheet to ensure proper clearance and compatibility with your board layout and enclosure.

Terminal pitch is the center-to-center distance between adjacent leads or pads on a component. It determines PCB layout compatibility and soldering feasibility. Verify against the datasheet to ensure your footprint matches the component's actual lead spacing.

Describes the method used to connect the component to the circuit board, such as solder, press-fit, or wire wrap. This affects assembly processes, reliability, and repairability. Check the termination type against your PCB footprint and soldering process to ensure compatibility.

Specifies the orientation or mounting direction of the component, such as horizontal, vertical, or polarized. Important for correct placement on the PCB and for ensuring proper airflow or connector alignment. Always confirm the direction against the datasheet drawing.

Specifies the capacitive load the component is designed to drive, affecting signal integrity and timing. Compare this value with your circuit's trace and input capacitance to ensure stable operation. Verify against the datasheet for optimal performance.

Indicates how many independent connection points or interfaces the component provides. Compare this when selecting connectors, switches, or modules for multi-channel designs. Verify against the datasheet to ensure the port count matches your system's required I/O configuration.

Specifies the electrical form of the output signal, such as digital, analog, or open collector. This determines how the component interfaces with your circuit. Verify the output type against your system requirements and the datasheet to ensure proper signal compatibility and avoid logic level mismatches.

Indicates the product series or family, grouping components with similar design and specifications. Helps identify compatible parts and compare within a product line. Verify the series against the datasheet to ensure correct application.

Lists any extra characteristics or capabilities beyond the standard specifications, such as built-in protection, special mounting options, or enhanced performance. Review these features to ensure they meet your application's specific needs and compare them across similar parts.

Indicates the rate at which the power device toggles between on and off states. Higher frequencies allow smaller magnetics but increase switching losses. Verify this parameter against your application's requirements and the datasheet's recommended operating conditions.

Specifies the maximum power the component can safely dissipate under defined operating conditions. Compare this value with your circuit's power requirements to prevent overheating and ensure reliable operation. Always verify against the datasheet for derating curves and ambient temperature limits.

Identifies the core product family without package, grade, or option suffixes. Use this to compare equivalent components across manufacturers and to locate the primary datasheet. Verify the full ordering code against the manufacturer's specification before design-in.

The unique part number assigned by the original component manufacturer. Use this to cross-reference datasheets, verify specifications, and ensure the exact component matches your design requirements. Always confirm the number against the manufacturer's official documentation.

Indicates whether the component complies with the EU RoHS directive restricting hazardous substances. Buyers should verify this status for regulatory compliance and market access. Check the datasheet or certificate for exact compliance details.

Indicates whether the product contains substances of very high concern as per the REACH regulation. Buyers should verify this for compliance with EU environmental standards, especially when exporting to Europe. Check the manufacturer's declaration or datasheet for accurate SVHC status.

Indicates the floor life of a component before it must be baked prior to soldering. Higher levels require stricter handling and shorter exposure times. Verify the MSL rating in the datasheet to ensure proper storage and assembly conditions.

This code indicates the terminal finish material per JESD-609 standard. It helps identify the plating type for soldering compatibility and environmental compliance. Check the datasheet for the exact code and its meaning.

Export Control Classification Number assigned by the U.S. Commerce Department. It determines export licensing requirements for electronic components. Verify the ECCN against the manufacturer's datasheet or export compliance documentation before shipping internationally.

Specifies the direction of voltage level translation for level shifters or translators. Choose unidirectional or bidirectional based on your bus architecture. Verify compatibility with the logic levels and signal direction requirements of your design.

Specifies the Boolean operation performed by the logic IC, such as AND, OR, NAND, or XOR. Engineers compare this to match the required signal processing in their circuit. Verify the exact function against the datasheet to ensure correct logic behavior.

Specifies the required power supply voltages for the component. Engineers use this to ensure the board's power rails match the device's needs. Verify against the datasheet's recommended operating conditions to avoid undervoltage or overvoltage issues.

Indicates how many independent functional sections are integrated into a single component package. This matters when comparing multi-channel devices or resistor networks. Always verify the exact element count against the datasheet to ensure it matches your circuit design requirements.

Specifies how many independent signal paths or outputs the component provides. Compare this value with your circuit requirements to ensure each channel can be used separately. Verify the channel configuration in the datasheet, as some devices may share pins or have internal connections.

Specifies the range of DC or AC input voltage the component requires for proper operation. Engineers compare this to the system power rail to ensure compatibility. Always verify against the datasheet's absolute maximum ratings to prevent damage.

Specifies the maximum current the output can source or sink in high and low logic states. Compare with the load requirements to ensure reliable logic levels. Verify against the datasheet for absolute maximum ratings and derating conditions.

Time from when the input signal crosses its threshold until the output begins to turn on. This parameter affects switching speed and power dissipation in high-frequency circuits. Verify it against the datasheet for your specific load and drive conditions.

Specifies the highest DC voltage that can be safely applied to the input terminals without damaging the component. Verify this limit against the datasheet to ensure your power supply or signal source stays within the safe operating area for reliable performance.

Specifies the logic family or functional type of the integrated circuit, such as AND, OR, inverter, or buffer. This determines voltage levels, speed, and compatibility with other logic families. Verify the exact type against the datasheet to ensure correct circuit operation and signal integrity.

Specifies the time interval between an input transition and the corresponding output transition. Critical for timing analysis in digital circuits. Verify against datasheet for specific test conditions, supply voltage, and load capacitance.

Specifies the lowest voltage at which the component begins to conduct in reverse or breakdown mode. Compare this value with the operating voltage to ensure sufficient margin. Verify against the datasheet for temperature and tolerance effects.

Total ionizing dose tolerance for radiation-hardened components. Indicates maximum cumulative radiation exposure before performance degrades. Critical for aerospace, nuclear, and medical applications. Verify against datasheet for mission-specific radiation requirements.