XR16M752 Datasheet | Exar

.. MAY 2007 XR16M752/XR68M752 HIGH PERFORMANCE DUART WITH 64-BYTE FIFO REV. 1.0.2 GENERAL DESCRIPTION The XR16M752/XR68M7521 (M752) is a high performance dual universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs. The M752 operates from 1.62 to 3.63 volts. It is pin-to-pin and software patible to the TL16C752B and SC16C752B, but with additional Features such as a programmable fractional baud rate generator, automatic RS-485 half-duplex direction control, infrared mode and 8X and 4X sampling rate. The standard Features include 16 selectable TX and RX FIFO trigger levels, automatic hardware (RTS/ CTS) and software (Xon/Xoff) flow control, and a plete modem interface. Onboard registers provide the user with operational status and data error flags. An internal loopback capability allows system diagnostics. Each channel is independently programmable for data rates up to 16 Mbps at 3.3 Volt with a 4X sampling rate. The XR68M752 has an additional 16/68# pin to select between the Intel and Motorola bus interface. The M752 is available in the 48-pin TQFP and 32-pin QFN packages. NOTE: 1 Covered by U.S. Patent #5,649,122 Features - 1.62 to 3.6 Volt Operation - Pin-to-pin and software patible to TI’s TL16C752B and Philips’ SC16C752B in the 48TQFP package - Two independent UART channels - - - - - - - - - - - Data rate of up to 16 Mbps at 3.3 V Data rate of up to 12.5 Mbps at 2.5 V Data rate of up to 8 Mbps at 1.8 V Fractional Baud Rate Generator Data sampling rates of 16X, 8X and 4X Transmit and Receive FIFOs of 64 bytes Programmable TX and RX FIFO Trigger Levels Automatic Hardware (RTS/CTS) Flow Control Automatic Software (Xon/Xoff) Flow Control Halt and Resume Transmission Control Automatic RS-485 Half-duplex Control Output via RTS# Automatic sleep mode Full modem interface Direction - - - Wireless Infrared (Ir DA 1.0) Encoder/Decoder APPLICATIONS - Portable Appliances - Telemunication Network Routers -...