RS-232 port with 5 drivers and 3 receivers — the non-standard ratio that fits DTE with full handshaking
Data rate is rated at 400 kbps. The receiver hysteresis is specified at 300 mV. The 28-TSSOP footprint is a common 4.40 mm body width, compatible with standard SOIC-28 land patterns after adjusting for the finer pitch.
Supply flexibility — one part for 3.3V and 5V rails
The wide supply tolerance also helps with unregulated rails.
Active lifecycle — no end-of-life pressure for new designs
ROHS3 compliance is confirmed, so it passes EU and global material restrictions without an exemption expiry concern.