RS-232 interface IC with 2/2 driver/receiver count
The receiver hysteresis of 300 mV provides noise immunity on the bus without external filtering.
At 250 kbps this transceiver handles standard RS-232 rates for legacy peripherals, barcode scanners, and serial debug ports. The 300 mV receiver hysteresis is a practical guard against noise on longer cable runs inside a cabinet.
The ROHS3 compliance (lead-free) is current for global shipping.
20-TSSOP footprint — what it connects to
The 20-TSSOP package (4.40 mm width, 0.65 mm pitch) is a standard fine-pitch surface-mount footprint shared across many RS-232 transceivers in this family.