74HC1G126GW,165

Overview

The Nexperia 74HC1G126GW,165 is a single bus buffer and line driver featuring three-state outputs. It operates within a supply voltage range of 2.0 V to 6.0 V and supports an ambient temperature range from -40 °C to +125 °C. The device utilizes a TSSOP5 (SOT353-1) package with five leads and a body width of 1.25 mm. Input levels are defined by CMOS standards for the HC variant.

Feature Summary

• Features three-state outputs controlled by an output enable input to manage high-impedance states.
• Includes clamp diodes on inputs to allow interfacing with voltages exceeding the supply voltage using current limiting resistors.
• Provides balanced propagation delays and symmetrical output impedance for signal integrity.

Applications

• Bus-oriented transmissions
• Clock buffering and distribution
• Memory data bus drivers

Procurement Notes

Verify the specific ordering suffix against official Nexperia documentation to confirm package type and temperature grade. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure the selected distributor provides traceable component history consistent with manufacturer specifications.

Selection Notes

Select this component when a single-channel buffer with three-state capability is required for CMOS logic interfaces. Consider the wide supply voltage range for mixed-voltage system designs. Evaluate the thermal derating characteristics for the TSSOP5 package if operating near maximum temperature limits.

Part Context

This part belongs to the Nexperia 74HC/HCT1G126 family of single bus buffers. It shares functional similarities with other members like the 74HCT1G126 but differs in input threshold levels. The GW suffix indicates the TSSOP5 plastic thin shrink small outline package configuration.

Replacement Considerations

Direct replacements include the 74HCT1G126GW,125 for TTL-compatible input levels or the 74AHCT1G126GW,125 for advanced high-speed CMOS performance. Verify pinout compatibility and electrical parameters before substitution.

FAQ

How does the device handle input voltages higher than VCC?

The inputs include clamp diodes, which enable the use of current-limiting resistors to interface inputs to voltages in excess of VCC without damaging the device.

What determines the output state when the OE input is low?

When the output enable (OE) input is low, the output assumes a high-impedance OFF-state regardless of the data input level.