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Product Detailed Parameters
- Description：74LS574N
- Series：*
- Mfr：Rochester Electronics, LLC
- Package：Bulk
- Function：-
- Type：-
- Output Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Clock Frequency：-
- Max Propagation Delay @ V, Max CL：-
- Trigger Type：-
- Current - Output High, Low：-
- Voltage - Supply：-
- Current - Quiescent (Iq)：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The SN74LS574N is an octal D-type flip-flop manufactured by Rochester Electronics, LLC. It features a single clock input and eight complementary outputs. The device operates within the standard TTL logic family specifications. It utilizes a 20-pin DIP package for through-hole mounting. The component is designed for high-speed digital applications requiring parallel data storage. It includes direct clear functionality for immediate output reset. The part number indicates compliance with LS series electrical characteristics.
Feature Summary
- Octal configuration providing eight independent D-type flip-flops in a single package
- Positive-edge triggered clocking mechanism for precise data synchronization
- Complementary outputs available for each flip-flop stage
- Direct clear input allows immediate resetting of all outputs regardless of clock state
Applications
- Parallel data storage registers in digital systems
- Shift register configurations for serial-to-parallel conversion
- Timing control circuits requiring synchronized data latching
- Memory buffer interfaces in microprocessor-based systems
Procurement Notes
Verify the specific manufacturer source code and date code markings on the component body to ensure authenticity from Rochester Electronics. Confirm that the package leads are intact and free from corrosion before installation. Check for any physical damage to the ceramic or plastic housing. Ensure compatibility with existing PCB footprint dimensions. Review official documentation for any updates regarding lead-free status or environmental compliance declarations associated with this specific lot.
Selection Notes
Select this component when an octal storage solution is required within a TTL-compatible design environment. Consider the 20-pin DIP form factor for legacy board layouts or prototyping needs. Evaluate the propagation delay characteristics against system timing requirements. Compare power consumption levels with other logic families if energy efficiency is critical. Verify voltage level compatibility with driving and receiving circuitry to ensure reliable signal integrity across the operating temperature range.
Part Context
This part belongs to the SN74LS574 family of octal D-type flip-flops. It is produced under license or as a surplus source by Rochester Electronics, LLC. The device serves as a fundamental building block for sequential logic circuits. It replaces original manufacturer parts in maintenance and repair scenarios. The component maintains functional equivalence with industry-standard LS logic specifications.
Replacement Considerations
SN74LS574PC is a compatible alternative offering identical logical functionality. SN74LS574N from other authorized distributors may serve as a direct substitute. Verify pinout compatibility and package dimensions before substitution. Ensure electrical parameters match the original design requirements.
