ą SN65C3223, SN75C3223 3ĆV TO 5.5ĆV MULTICHAN.
SN75C3223 - 3-V to 5-V Multichannel RS-232 Compatible Line Driver/Receiver
SN75C3223E - 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS