SN74LVTZ244DBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTZ244DBR is an octal buffer and line driver utilizing Advanced BiCMOS Technology (ABT) for 3.3-V operation. It features two 4-bit drivers with separate output-enable inputs, providing a TTL interface to 5-V systems. The device supports mixed-mode signal operation, allowing 5-V input and output voltages with a 3.3-V VCC supply. It maintains high-impedance states during power-up and power-down and includes active bus-hold circuitry on data inputs. The component operates within a supply voltage range of 2.7 V to 3.6 V and is characterized for temperatures from -40°C to 85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 5-V tolerant I/O while operating at 3.3 V
• Active bus-hold circuitry eliminates the need for external pullup resistors on floating inputs
• Maintains high-impedance state during power-up and power-down sequences

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal environments requiring 5-V to 3.3-V translation
• Unregulated battery operation down to 2.7 V
• High-density PCB designs utilizing shrink small-outline packages

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DBR' corresponds to the Shrink Small-Outline Package (SSOP) with tape-and-reel packaging containing 2000 units. Confirm that the RoHS compliance status and lead finish match project requirements. Ensure the temperature grade aligns with the specified commercial range of -40°C to 85°C rather than the military-grade SN54 variant.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing for 3.3-V logic families requiring eight buffered channels with independent control. The ABT technology offers low static power dissipation compared to standard CMOS. Consider the SSOP package for applications where board space is limited but through-hole or larger surface-mount options are unsuitable. Verify that the 5-V input tolerance meets the driving source specifications.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTZ244 family of octal buffers/drivers. The 'Z' designation indicates radiation-hardened or specialized processing in some contexts, though here it denotes the specific ABT process variant. The 'DB' suffix identifies the Shrink Small-Outline Package, while 'R' specifies tape-and-reel delivery. It is distinct from the non-Z variants which may lack specific environmental or processing characteristics.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTZ244DW: Same functionality in SOIC package. SN74LVTZ244PWR: Same functionality in TSSOP package. SN74LVTH244ADBR: Similar function but different electrical characteristics and series.