XR16M781
XR16M781 is 1.62V TO 3.63V UART manufactured by Exar.
1.62V TO 3.63V UART WITH 64-BYTE FIFO AND VLIO INTERFACE
AUGUST 2009 REV. 1.0.1
GENERAL DESCRIPTION
The XR16M7811 (M781) is an enhanced Universal Asynchronous Receiver and Transmitter (UART) with a VLIO bus interface and has 64 bytes of transmit and receive FIFOs, programmable transmit and receive FIFO trigger levels, automatic hardware and software flow control, and data rates of up to 20 Mbps at 3.3V, 16 Mbps at 2.5V and 10 Mbps at 1.8V with 4X data sampling rate. The Auto RS-485 Half-Duplex Direction control feature simplifies both the hardware and software for half-duplex RS-485 applications. In addition, the Multidrop mode with Auto Address detection increases the performance by simplifying the software routines. The Independent TX/RX Baud Rate Generator feature allows the transmitter and receiver to operate at different baud rates. Power consumption of the M781 can be minmized by enabling the sleep mode and Power Save mode. The M781 has a 16550 patible register set that provide users with operating status and control, receiver error indications, and modem serial interface controls. An internal loopback capability allows onboard diagnostics. The M781 is available in 24-pin QFN, 32-pin QFN and 25-pin BGA packages.
NOTE:
1 Covered by U.S. Patent #5,649,122.
Features
- VLIO bus interface
- Pin-to-pin patible with SC16C850V and
SC16C850SV in 32-QFN package
- 20 Mbps maximum data rate
- Programmable TX/RX FIFO Trigger Levels
- TX/RX FIFO Level Counters
- Independent TX/RX Baud Rate Generator
- Fractional Baud Rate Generator
- Auto RTS/CTS Hardware Flow Control
- Auto XON/XOFF Software Flow Control
- Auto RS-485 Half-Duplex Direction Control
- Multidrop mode w/ Auto Address Detect
- Sleep Mode with Automatic Wake-up
- Power Save mode
- Infrared (Ir DA 1.0 and 1.1) mode
- 1.62V to 3.63V supply operation
- Crystal oscillator or external clock input
APPLICATIONS
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- Personal Digital Assistants (PDA)
- Cellular Phones/Data Devices
-...
