RS232 transceiver in 18-SOIC
The MAX222CWN+T is a full-duplex RS232 transceiver from Analog Devices, integrating two drivers and two receivers in an 18-SOIC package. It handles serial communication at 250kbps over the RS232 protocol, operating from a single 4.5V to 5.5V supply rail.
Data rate and signal integrity
Rated at 250kbps, this transceiver supports standard RS232 baud rates up to 250kbit/s — sufficient for legacy serial ports, industrial terminal interfaces, and point-of-sale equipment where the RS232 line length stays within 15 meters. The 500 mV receiver hysteresis filters noise on the incoming line, reducing the chance of false edges on a long cable run.
Package and footprint
Housed in an 18-SOIC with 7.50 mm body width (0.295"), the MAX222CWN+T uses the standard wide SOIC footprint. Surface-mount assembly with tape-and-reel packaging — the reel quantity suits medium-volume pick-and-place runs without a reel change.