3 to 5.5V, 250Kbps, RS-232 Transceiver with stand-by

+/- 15 kV ESD protected, 1 A, 3 to 5.5 V, 250 kbps RS-232 transceiver with stand-by

±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto-power-down

256 x 8-bit static low-voltage RAM with I²C-bus interface

Clock and calendar with 240 x 8-bit RAM