It handles data rates up to 116 kbps over a 4.5 V to 5.5 V supply rail, with 500 mV of receiver hysteresis for noise rejection on the line.
Through-hole DIP — field-swappable without a hot-air station
The 28-DIP package (0.600" wide, 15.24 mm pitch) is a field-service win: it fits a standard socket, so you can swap it on site with a puller and a fresh part — no lab bench, no hot air. Orientation is obvious from the notch, and the through-hole leads are robust against handling without ESD precautions beyond the usual wrist strap.
No last-time-buy, no end-of-life notice to plan around.