74LVT126PW,112

Overview

The Nexperia 74LVT126PW,112 is a quad buffer and line driver featuring three-state outputs controlled by active LOW enable inputs. It operates within a supply voltage range of 2.7 V to 3.6 V and accepts overvoltage tolerant inputs up to 5.5 V. The device utilizes BiCMOS technology for high-speed performance and provides an output drive capability of +64 mA in the low state and -32 mA in the high state. It includes bus-hold data inputs to eliminate external pull-up resistors and IOFF circuitry for partial power-down applications.

Feature Summary

• Quad bus interface with three-state buffers
• Overvoltage tolerant inputs compatible with 5 V systems
• Bus-hold data inputs prevent undefined states without external components
• IOFF circuitry prevents backflow current during partial power-down

Applications

• Partial power-down mode operation
• Live insertion and extraction on buses
• Interface between 3.3 V and 5 V logic systems

Procurement Notes

Verify the specific ordering code 74LVT126PW,112 against the manufacturer's latest documentation to confirm package type and availability status. Ensure that the TSSOP14 package variant matches the design requirements. Cross-reference the revision history to confirm compliance with current JEDEC standards for ESD protection and latch-up performance before finalizing procurement.

Selection Notes

Select this component when interfacing 3.3 V logic with 5 V systems requiring high drive strength and overvoltage tolerance. The inclusion of bus-hold inputs simplifies PCB layout by removing the need for external pull-up resistors on unused lines. Consider the BiCMOS technology for applications demanding faster propagation delays compared to standard CMOS alternatives while maintaining compatibility with TTL input levels.

Part Context

The 74LVT126 series belongs to Nexperia's Low Voltage Transceiver (LVT) family, designed specifically for 3.3 V applications. This particular model represents the quad buffer variant with three-state outputs. It is part of a broader lineup that includes various package options such as SO14 and DHVQFN14, catering to different space and thermal constraints in electronic designs.

Replacement Considerations

Direct pin-compatible replacements include other variants of the 74LVT126 series, such as the 74LVT126D or 74LVT126BQ, depending on the required package format. Verify that any substitute maintains the same BiCMOS characteristics, output drive capabilities, and IOFF functionality to ensure circuit compatibility.