What this part is and where it fits
The Texas Instruments SN74ABT240APWR is a dual 4-bit inverting buffer with 3-state outputs, part of the 74ABT BiCMOS logic family. It operates from a 4.5 V to 5.5 V supply. Output drive is rated at 32 mA sourcing and 64 mA sinking per channel, enough to drive heavily loaded parallel buses or long backplane traces without external line drivers. The industrial temperature range of -40°C to 85°C covers factory-floor and outdoor telecom enclosures.
Lifecycle and sourcing
The SN74ABT240APWR is listed as Active with ROHS3 compliance. No end-of-life notice or last-time-buy window is in effect.
