74HCT9115D,112

Overview

The 74HCT9115D,112 is a high-speed CMOS logic component manufactured by NXP USA Inc., belonging to the 74HCT series. It functions as an octal transparent latch with 3-state outputs, designed for operation within a supply voltage range of 4.5V to 5.5V. The device utilizes a 20-pin Small Outline Package (SOP) and supports a wide operating temperature range from -40°C to +125°C. Key electrical characteristics include a load capacitance of 50 pF and a maximum low-level output current of 4 mA. Propagation delay is specified at 31 ns under nominal supply conditions.

Feature Summary

• Octal transparent latch architecture providing eight independent data storage elements
• 3-state outputs enabling direct interface with system buses without external buffers
• CMOS technology ensuring low power consumption and high noise immunity
• Wide operating temperature range suitable for demanding industrial environments

Applications

• Data buffering in microprocessor-based systems
• Temporary storage of digital signals in communication interfaces
• Parallel-to-serial conversion circuits
• I/O port expansion in embedded control systems

Procurement Notes

Verify the complete part number including the suffix '112' to ensure correct packaging configuration. Confirm RoHS compliance status through official NXP documentation prior to procurement. Check for any specific handling requirements related to electrostatic discharge protection during storage and assembly processes.

Selection Notes

Select this component when an octal latch with tri-state capability is required for 5V logic systems. Ensure the input voltage levels are compatible with TTL standards due to the HCT designation. Consider the SOP package dimensions and pin count for PCB layout constraints compared to alternative DIP packages.

Part Context

This component is part of NXP's extensive 74HCT logic family, which bridges the gap between standard HC logic and older TTL technologies. The 74HCT9115 specifically addresses applications requiring multiple latched outputs with bus isolation capabilities, serving as a critical interface element in complex digital designs.

Replacement Considerations

Cross-reference with other manufacturers offering equivalent 74HCT9115 devices. Verify pin compatibility and electrical specifications before substitution. Ensure that any replacement maintains the same 3-state output functionality and SOP-20 package form factor.