Active production, wide-temperature octal buffer
The Texas Instruments SN74LVC240APW is an octal inverting buffer with 3-state outputs from the 74LVC logic family, packaged in a 20-pin TSSOP. It operates from a 1.65V to 3.6V supply, making it a drop-in for both 1.8V and 3.3V digital systems.
The 1.65V to 3.6V supply range is the headline spec: it lets you use this single part across a 1.8V core logic rail and a 3.3V peripheral bus without a level translator, as long as the input thresholds are compatible. The 24 mA symmetric output drive is the standard 74LVC figure — it handles the fan-out of a typical address or data bus but won't drive a 50 ohm backplane without external buffering. The 3-state outputs are controlled per-element, so you can isolate a bus segment or share a bidirectional line with other 3-state devices.
Package and temperature — layout and environment
The 20-TSSOP package (4.40mm body width) is a common footprint shared across the 74LVC family and many other logic series, so a layout designed for one 20-pin TSSOP buffer usually accepts this part without a board spin.
The 74LVC family is a mature, widely second-sourced logic platform, which reduces single-source risk.