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XR16M2750

Exar Corporation
Part Number XR16M2750
Manufacturer Exar Corporation
Description HIGH PERFORMANCE DUART
Published Aug 3, 2007
Detailed Description www.DataSheet4U.com JUNE 2007 PRELIMINARY XR16M2750 REV. P1.0.0 HIGH PERFORMANCE DUART WITH 64-BYTE FIFO GENERAL DES...
Datasheet PDF File XR16M2750 PDF File

XR16M2750
XR16M2750

Overview
www.
DataSheet4U.
com JUNE 2007 PRELIMINARY XR16M2750 REV.
P1.
0.
0 HIGH PERFORMANCE DUART WITH 64-BYTE FIFO GENERAL DESCRIPTION The XR16M27501 (M2750) is a high performance dual universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs.
The device operates from 1.
62 to 3.
6 volts and is pin-to-pin compatible to Exar’s ST16C2550 and XR16V2750.
The M2750 register set is identical to the XR16V2750 and is compatible to the ST16C2550 and the XR16C2850 enhanced features.
It supports the Exar’s enhanced features of programmable FIFO trigger level and FIFO level counters, automatic hardware (RTS/CTS) and software flow control, automatic RS-485 half duplex direction control output and a complete modem interface.
Onboard registers provide the user with operational status and data error flags.
An internal loopback capability allows system diagnostics.
Independent programmable baud rate generators are provided in each channel to select data rates up to 8 Mbps at 3.
3 Volt and 8X sampling clock.
The M2750 is available in 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 compatible to Exar’s XR16V2750 and TI’s TL16C752B in the 48-TQFP package • Two independent UART channels ■ ■ Register set compatible to XR16V2750 Data rate of up to 8 Mbps at 3.
3 V, 6.
25 Mbps at 2.
5 V and 4 Mbps at 1.
8 V with 8X sampling rate Fractional Baud Rate Generator Transmit and Receive FIFOs of 64 bytes Programmable TX and RX FIFO Trigger Levels Transmit and Receive FIFO Level Counters Automatic Hardware (RTS/CTS) Flow Control Selectable Auto RTS Flow Control Hysteresis Automatic Software (Xon/Xoff) Flow Control Automatic RS-485 Half-duplex Control Output via RTS# Automatic sleep mode Full modem interface Direction ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Wireless Infrared (IrDA 1.
0) Encoder/Decoder APPLICATIONS • Portable Appliances • Telecommunication Network Routers • Ethernet Network Routers • Cellular Data ...


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