ICL3217IB
Low Power, +3V to +5.5V, 250kbps, RS-232 Transm..
ICL3221
1 Microamp Supply-Current, +3V to +5.5V, 250kbp..
ICL3221E
+,-15kV ESD Protected, +3V to +5.5V, 1Microamp,..
ICL3221ECA
+,-15kV ESD Protected, +3V to +5.5V, 1Microamp,..
ICL3221ECA-T
+,-15kV ESD Protected, +3V to +5.5V, 1Microamp,..