74LVT126BQ,115

Overview

The Nexperia 74LVT126BQ,115 is a quad buffer and line driver featuring three-state outputs controlled by dedicated output enable inputs. It operates within a supply voltage range of 2.7 V to 3.6 V and utilizes BiCMOS technology for high-speed performance. The device provides an output capability of +64 mA in the low state and -32 mA in the high state. It incorporates bus-hold data inputs to eliminate external pull-up resistors and includes IOFF circuitry for partial power-down applications.

Feature Summary

• Features overvoltage tolerant inputs capable of interfacing with systems operating at 5 V supply levels while maintaining compatibility with TTL logic levels.
• Includes integrated IOFF circuitry that disables outputs during power-down conditions to prevent potentially damaging backflow currents through the device.
• Supports live insertion and extraction operations without causing bus current loading when outputs are tied to a 5 V bus.

Applications

• Bus interface buffering for memory modules
• Clock distribution networks
• Data bus drivers

Procurement Notes

Verify the specific ordering suffix '115' corresponds to the DHVQFN14 package (SOT762-1) as indicated in the manufacturer's documentation. Confirm that the required temperature range aligns with the specified -40 °C to +85 °C operational limits before finalizing procurement orders.

Selection Notes

Select this component when a quad buffer with three-state control is required for 3.3 V logic systems. Ensure the design accommodates the 2.7 V to 3.6 V supply voltage constraints and utilizes the available 64 mA low-level drive capability for appropriate load matching.

Part Context

This part belongs to the 74LVT series of logic devices manufactured by Nexperia. It is specifically designed for low-voltage applications requiring high-speed signal transmission. The BQ variant denotes the DHVQFN14 package type, which offers a compact form factor suitable for space-constrained printed circuit board layouts.

Replacement Considerations

Direct replacements include other 74LVT126 variants such as the SO14 or TSSOP14 packages if pinout compatibility is maintained. Verify electrical specifications against the original datasheet requirements to ensure functional equivalence in the target application.