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ApplicationsEnergy and Power Systems
T74LS74AB1 Information
T74LS74AB1 by STMicroelectronics is an FF/Latch.
FF/Latches are under the broader part category of Logic Components.
Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.
US Tariff Estimator: T74LS74AB1 by STMicroelectronics
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
This table gives cross-reference parts and alternative options found for T74LS74AB1. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of T74LS74AB1, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
The recommended operating voltage range for the T74LS74AB1 is 4.5V to 5.5V, with a typical voltage of 5V.
The asynchronous reset input (CLR) should be tied to VCC through a pull-up resistor (typically 1kΩ to 10kΩ) to ensure proper operation. A low signal on CLR resets the flip-flop.
The maximum clock frequency that the T74LS74AB1 can handle is typically around 100 MHz, but this can vary depending on the specific application and operating conditions.
To ensure proper operation, the T74LS74AB1 should be powered from a clean, stable 5V supply, and decoupling capacitors (typically 0.1μF to 1μF) should be placed close to the device to filter out noise and voltage spikes.
While the T74LS74AB1 is specified for 5V operation, it can be used in a 3.3V system with some limitations. However, the device's performance and noise immunity may be compromised, and the output voltage levels may not be compatible with 3.3V logic.
