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SN74LS51N is listed in the Gates And Inverters - Multi-Function, Configurable range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC 2-IN AND-OR-INV GATE 14-DIP. Review the specifications below when checking this part for your BOM.
The SN74LS51N is a dual AND-OR-INVERT gate integrated circuit manufactured by Texas Instruments, belonging to the 74LS logic family. It features two independent circuits with a total of ten inputs configured as three-input and two-input combinations. The device operates on a single supply voltage ranging from 4.75V to 5.25V. It utilizes a 14-pin Mini-DIP package designed for through-hole mounting. The output type is single-ended, providing standard TTL-compatible logic levels.
Verify the specific manufacturer marking and date code upon receipt, as this component may be sourced from third-party distributors or surplus channels. Confirm that the physical package matches the 14-Mini-DIP specification and inspect pins for damage. Ensure the part number suffix aligns exactly with the requested model to avoid functional discrepancies in legacy systems.
Select this component when a compact solution for complex AND-OR-INVERT logic is required within a standard TTL environment. It serves as a direct replacement for other manufacturers' equivalents in the 74LS51 family. Consider the through-hole packaging requirement and verify that the operating temperature range meets the application's environmental constraints before finalizing the design.
This device is part of the widely adopted 74LS (Low-power Schottky) logic family, known for balancing speed and power consumption. The SN74LS51 provides a versatile logic function often used to simplify Boolean expressions in digital designs. Its availability from major semiconductor manufacturers ensures broad ecosystem support and interchangeability across various electronic equipment platforms.
Direct substitutes include the DM74LS51N from onsemi and the SN74LS51D variant. Verify pinout compatibility and electrical specifications against the original design requirements before substitution.
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