74LVT126D,118

Overview

The Nexperia 74LVT126D,118 is a quad buffer and line driver featuring 3-state outputs controlled by nOE inputs. It operates within a supply voltage range of 2.7 V to 3.6 V. The device provides an output capability of +64 mA and -32 mA. Inputs are overvoltage tolerant up to 5.5 V. Propagation delays range from 1.0 ns to 4.5 ns depending on the transition direction and voltage. The component is housed in an SO14 package (SOT108-1) and supports an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Bus-hold data inputs eliminate the need for external pull-up resistors to define unused inputs.
• IOFF circuitry disables outputs during partial power-down to prevent damaging backflow current.
• Direct interface with TTL levels allows compatibility with systems at 5 V supply.
• Live insertion and extraction permitted without causing bus current loading.

Applications

• Quad bus interface applications
• Partial power-down mode operation
• Systems requiring live insertion and extraction

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the 74LVT126 family includes TSSOP and DHVQFN variants. Confirm that the -40 °C to +85 °C temperature range aligns with system requirements. Ensure input voltages do not exceed the 5.5 V tolerance limit to maintain device integrity. Check for any recent Product Change Notifications regarding packaging or material updates.

Selection Notes

Select this component when a 3.3 V logic buffer requires high drive strength and overvoltage tolerance. The inclusion of bus-hold inputs simplifies design by removing external pull-up components. Consider the IOFF feature if the application involves hot-swapping or partial power states. Verify that the propagation delay specifications meet the timing constraints of the target bus interface.

Part Context

This part belongs to the 74LVT logic family, designed for low-voltage CMOS applications. It serves as a buffer/line driver within Nexperia's portfolio of standard logic ICs. The device complements other level-shifting and buffering solutions by offering BiCMOS speed and drive capabilities in a 14-lead small outline package.

Replacement Considerations

74LVT126PW, 74LVT126BQ