74LVT574D,112

Overview

The SN74LVT574D,112 is an octal D-type flip-flop manufactured by NXP USA Inc., belonging to the LVT logic series. It features eight positive-edge-triggered D-type flip-flops with 3-state outputs in a 20-pin SOIC package. The device operates within a supply voltage range of 2.7 V to 3.6 V and supports single-ended inputs. Key electrical parameters include a propagation delay of 4.3 ns and a high-level output current capability of -32 mA. It functions as a non-inverting buffer with a maximum operating temperature of +85°C.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops for parallel data storage
• Positive-edge triggering mechanism ensures precise data capture on clock transitions
• 3-state output architecture allows direct connection to multiplexed data buses
• Low-voltage operation compatible with 3.3 V systems while maintaining robust drive strength

Applications

• Parallel-to-serial data conversion circuits
• I/O port expansion in embedded microcontroller systems
• Buffering and latching of digital control signals
• Memory address register implementations

Procurement Notes

Verify the specific manufacturer designation, as Texas Instruments produces the identical SN74LVT574DWR variant. Confirm that the NXP USA Inc. part number matches the required 20-SOIC package dimensions and pinout compatibility. Ensure the 2.7 V to 3.6 V operating range aligns with the target system's power supply specifications before finalizing procurement.

Selection Notes

Select this component when designing systems requiring multiple synchronized data latches at low voltages. The 3-state outputs facilitate bus sharing, reducing trace count compared to standard logic families. Consider the 4.3 ns propagation delay for timing-critical applications. Verify thermal requirements against the specified operating temperature range to ensure reliability under varying environmental conditions.

Part Context

This component belongs to the 74LVT family, designed for low-voltage CMOS applications. It serves as a digital storage element within complex logic networks. The octal structure consolidates eight individual flip-flops into a single integrated circuit, optimizing board space. It complements other LVT series devices like buffers and inverters in mixed-signal designs.

Replacement Considerations

The SN74LVT574DWR from Texas Instruments is a confirmed functional substitute with identical logical operations and pinout compatibility. Both parts share the same octal D-type flip-flop architecture and 3-state output characteristics. Verify package tolerance alignment between the NXP SOIC and TI variants during physical integration.