5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs and 68 mode uP interface

5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.) with 32-byte FIFOs, IrDA encoder/decoder, and 68 mode uP interface

5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs and 68 mode μP interface

50 Mbps, 3.3 V / 5 V full-duplex RS485 transceiver with ±12 kV IEC 61000-4-2 contact ESD protection

硬件 TCP/IP 协议栈以太网控制器，SPI 接口

1.8 V dual UART, 5 Mbit/s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface

Low power RS-485/RS-422 transceiver

Very high speed low power RS-485/RS-422 transceiver

Parallel bus to I2C-bus controller

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

Clock and calendar with 240 x 8-bit RAM

5 V powered multi-channel RS-232 drivers and receivers