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XR16M570IL32

Description
1.62V to 3.63V Single UART with 16-Byte FIFO
Categorysemiconductor    Analog mixed-signal IC   
File Size384KB,52 Pages
ManufacturerExar [Exar Corporation]
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XR16M570IL32 Overview

1.62V to 3.63V Single UART with 16-Byte FIFO

XR16M570
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 16-BYTE FIFO
SEPTEMBER 2008
REV. 1.0.0
GENERAL DESCRIPTION
The XR16M570
1
(M570) is an enhanced Universal
Asynchronous Receiver and Transmitter (UART) with
16 bytes of transmit and receive FIFOs, selectable
transmit and receive FIFO trigger levels, automatic
hardware and software flow control, and data rates of
up to 16 Mbps at 3.3V, 12.5 Mbps at 2.5V and 7.5
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
M570 can be minimized by enabling the sleep mode
and PowerSave mode.
The M570 has a 16550 compatible 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 M570 is available in 24-pin
QFN, 32-pin QFN and 25-pin BGA packages. All
three packages offer the 16 mode (Intel bus) interface
only.
N
OTE
:
1 Covered by U.S. Patent #5,649,122.
FEATURES
Pin-to-pin compatible with XR16L570 in 24-QFN
and 32-QFN packages
Intel data bus Interface
16 Mbps maximum data rate
Selectable 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
PowerSave mode in 24-pin QFN package
Infrared (IrDA 1.0 and 1.1) mode
1.62V to 3.63V supply operation
Crystal oscillator or external clock input
APPLICATIONS
Personal Digital Assistants (PDA)
Cellular Phones/Data Devices
Battery-Operated Devices
Global Positioning System (GPS)
Bluetooth
F
IGURE
1. XR16M570 B
LOCK
D
IAGRAM
P w rS ave
A 2:A 0
D 7:D 0
IO R #
IO W #
C S#
IN T
R ES E T
U AR T
R egs
UART
16 B yte TX FIFO
TX &
RX
IR
E N D EC
VCC
(1.62 to 3.63 V )
GND
TX, R X ,
R TS #, C TS #,
D TR #, D S R #,
R I#, C D #
Intel
D ata B us
Interface
BRG
16 B yte R X FIFO
C rystal O sc/Buffer
X TA L1
X TA L2
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com

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