XR16L570 Exar Corporation, XR16L570 Datasheet
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XR16L570
Manufacturer Part Number
XR16L570
Description
SMALLEST 1.62V TO 5.5V UART
Manufacturer
Exar Corporation
Datasheet
1.XR16L570.pdf
(46 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
XR16L570IL24-F
Manufacturer:
EXAR/艾科嘉
Quantity:
20 000
Company:
Part Number:
XR16L570IL32-F
Manufacturer:
CYPRESS
Quantity:
101
Part Number:
XR16L570IL32-F
Manufacturer:
EXAR/艾科嘉
Quantity:
20 000
www.DataSheet4U.com
xr
DECEMBER 2005
GENERAL DESCRIPTION
The XR16L570 (L570) is a 1.62 to 5.5 volt Universal
Asynchronous Receiver and Transmitter (UART) with 5 volt
tolerant inputs and a reduced pin count. It is software
compatible
ST16C580, ST16C650A, XR16C850 and XR16L580
UARTs. It has 16 bytes of TX and RX FIFOs and is capable
of operating with a serial data rate of up to 4 Mbps at 5V, 3
Mbps at 3.3V,1 Mbps at 2.5V and 750 Kbps at 1.8V. The
internal registers are compatible to the 16C550 register set
plus enhanced registers for additional features to support
today’s high bandwidth data communication needs. The
enhanced features include
software flow control to prevent data loss, selectable RX
and TX trigger levels for more efficient interrupt service,
wireless infrared (IrDA) encoder/decoder for wireless
applications and a unique Power-Save mode to increase
battery operating time. The device comes in 32-QFN and
24-QFN packages in industrial temperature range.
APPLICATIONS
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Exar
F
IGURE
Handheld Terminals and Tablets
Handheld Computers
Wireless Portable Point-of-Sale Terminals
Cellular Phones DataPort
GPS Devices
Personal Digital Assistants Modules
Battery Operated Instruments
Corporation 48720 Kato Road, Fremont CA, 94538
PwrSave
1. B
RESET
A2:A0
D7:D0
IOR#
IOW#
CS#
INT
to
LOCK
industry
D
IAGRAM
SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
standard
Data Bus
Interface
automatic hardware and
16C450,
16C550,
•
(510) 668-7000
UART
Regs
BRG
FEATURES
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Smallest Full Featured UART
1.62V to 5.5V Supply Voltage
5V Tolerant Inputs (except XTAL1/CLK)
’0 ns’ Address Hold Time (T
Software Compatible to industry standard 16C450,
16C550, ST16C580, ST16C650A, XR16C850 and
XR16L580
16-byte Transmit FIFO
16-byte Receive FIFO with Errors Flags
Selectable RX and TX FIFO Trigger Levels
Automatic Hardware (RTS/CTS) Flow Control
Automatic Software (Xon/Xoff) Flow Control
Up to 4 Mbps data rate at 5.0V Operation
Up to 3 Mbps data rate at 3.3V Operation
Up to 1 Mbps data rate at 2.5V Operation
Up to 750 Kbps data rate at 1.8V Operation
Infrared (IrDA) Encoder/Decoder
Complete Modem Interface
Power-Save Mode to conserve battery power
Sleep Mode with Wake-up Interrupt
Very small packages: 24-QFN (4x4x0.9mm) and 32-QFN
(5x5x0.9mm)
Industrial Temperature Grade(-40 to +85
*5 V Tolerant Inputs
Clock Buffer
16 Byte TX FIFO
(Except for CLK)
16 Byte RX FIFO
TX & RX
UART
•
FAX (510) 668-7017
ENDEC
IR
AH
and T
•
(1.62 to 5.5 V)
TX
RX
RTS#
CTS#
DTR#
DSR#
CD#
RI#
www.exar.com
XTAL2
XTAL1 (CLK)
ADH
VCC
GND
)
o
C)
REV. 1.0.0