Package and mounting
The 8-DIP (0.300-inch row spacing) is a through-hole package that takes well to hand-soldering and rework. The 7.62 mm body width fits standard 0.3-inch DIP sockets and perfboard. If you need to swap it on a prototype board, a desoldering iron or hot-air preheat from the bottom side lifts the part clean without lifting pads. No thermal pad underneath, so no hidden solder joint to worry about.
Supply voltage and current — what the numbers mean
The 1V to 15V supply range covers everything from a single alkaline cell to a 12V rail. The 360 µA quiescent current is roughly one-tenth what a bipolar 555 pulls at the same voltage, so battery-powered designs get real runtime benefit. That low supply current also means less self-heating in the DIP — the part stays cool even in a cramped enclosure.
Lifecycle and sourcing
The TLC551CP carries an Active product status with ROHS3 compliance. No LTB risk for ongoing builds.