ST3222EB ST3222EC ± 15 kV ESD protected, 3 to 5.5.
STMicroelectronics
ST3222EC - RS-232 drivers/receivers
ST3222EB ST3222EC ± 15 kV ESD protected, 3 to 5.5 V low power, up to 250 Kbps, RS-232 drivers and receivers Features ■ ESD protection for RS-232 I/O .