74HC9115D/S400118

Overview

The NXP USA Inc. 74HC9115D/S400118 is a nine-wide Schmitt trigger buffer featuring open drain outputs and input clamp diodes, housed in an SO20 (SOT163-1) package. It operates within a supply voltage range of 2.0 V to 6.0 V and supports ambient temperatures from -40 °C to +125 °C. The device provides high noise immunity with unlimited input rise and fall times, ensuring jitter-free output signals. Static characteristics include low power dissipation typical of CMOS technology, while dynamic performance specifies propagation delays ranging from 10 ns to 165 ns depending on voltage and temperature conditions.

Feature Summary

• Schmitt trigger action on all data inputs for signal conditioning
• Open drain outputs allowing flexible interfacing
• Input clamp diodes enabling interface to voltages exceeding VCC
• High noise immunity with unlimited input transition times

Applications

• Signal buffering in noisy environments
• Interface circuits requiring voltage level translation beyond VCC
• Applications demanding jitter-free digital signal conversion

Procurement Notes

Verify the component matches the official Nexperia datasheet specifications for the 74HC9115 family. Confirm the package type corresponds to the SO20 plastic small outline variant. Ensure the manufacturer designation aligns with NXP USA Inc. or Nexperia B.V. as indicated in the product documentation. Validate that the ordering suffix does not alter the functional parameters defined in the standard specification.

Selection Notes

Select this component when a wide bus buffer with Schmitt trigger inputs is required for noise-sensitive applications. The open drain configuration necessitates external pull-up resistors for proper logic high levels. Consider the operating voltage range and temperature specifications to ensure compatibility with the target system environment. Verify that the input clamp diode capability meets the interface voltage requirements.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by Nexperia. The 74HC9115 specifically functions as a nine-bit buffer, distinguishing it from standard single or dual buffers. It utilizes the SO20 package format common for wider logic families. The device adheres to JEDEC standards for operation and ESD protection, ensuring reliability in industrial and commercial electronic designs.

Replacement Considerations

Direct replacements must maintain the nine-channel width, Schmitt trigger inputs, and open drain output structure. Verify pinout compatibility with the SO20 package. Check that alternative sources specify identical electrical characteristics for voltage ranges and temperature stability.