XR16L580 Exar Corporation, XR16L580 Datasheet
XR16L580
Manufacturer Part Number
XR16L580
Description
Smallest 2.25 to 5.5V Uart With 16-Byte Fifo And Power-save
Manufacturer
Exar Corporation
Datasheet
1.XR16L580.pdf
(47 pages)
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Part Number:
XR16L580IL-F
Manufacturer:
EXAR/艾科嘉
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20 000
Part Number:
XR16L580IL-FN
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XR16L580IL24-F
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Part Number:
XR16L580IM-F
Manufacturer:
Exar Corporation
Quantity:
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Part Number:
XR16L580IM-F
Manufacturer:
EXAR/艾科嘉
Quantity:
20 000
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Part Number:
XR16L580IMTR-F
Manufacturer:
Exar Corporation
Quantity:
10 000
JANUARY 2004
GENERAL DESCRIPTION
The XR16L580 (L580) is a 2.25 to 5.5 volt Universal
Asynchronous Receiver and Transmitter (UART) with
5 volt tolerant inputs and a reduced pin count. It is
pin-to-pin and software compatible to industry
standard 16C450, 16C550, ST16C580, ST16C650A
and XR16C850 UARTs. It has 16 bytes of TX and RX
FIFOs and is capable of operating up to serial data
rate of 1 Mbps at 2.25 volt supply voltage. The
internal registers is compatible to the 16C550
register set plus enhanced registers for additional
features to support today’s high bandwidth data
communication needs. The
include Intel or Motorola data bus interface to match
your
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 the 48-TQFP and a very small 32-QFN packages in
industrial temperature range.
APPLICATIONS
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
CPU
1. B
IOW# (R/W#)
INT (IRQ#)
PwrSave
(RESET#)
LOCK
RESET
interface,
D7:D0
IOR#
A2:A0
16/68#
CS#
D
IAGRAM
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
automatic
Data Bus
Motorola
Interface
Intel or
enhanced
hardware
features
UART
and
BRG
Regs
Crystal Osc/Buffer
•
*5 V Tolerant Inputs
(510) 668-7000
TX & RX
16 Byte RX FIFO
16 Byte TX FIFO
FEATURES
UART
Industry Smallest Full Featured UART
2.25V to 5.5V Operation
5V Tolerant Inputs
Intel/Motorola Bus Select
’0 ns’ Address Hold Time (T
Pin and Software Compatible to industry standard
16C450, 16C550, ST16C580, ST16C650A and
XR16C850 in the 48-TQFP package.
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 3.125 Mbps Data Rate at 5V and 2 Mbps at
3.3V and 1 Mbps at 2.25V Operation with External
Clock Input
Infrared (IrDA) Encoder/Decoder
Complete Modem Interface
Power-Save Mode to conserve battery power
Sleep Mode with Wake-up Interrupt
Small 32-QFN (5x5x0.9mm) package
Compatible to standard 48-TQFP packages
without the following redundant signals: IOR,
IOW, CS1, CS2, TXRDY#, RXRDY#, RCLK,
BAUDOUT#, OP1# and OP2#
Industrial Temperature Grade(-40 to +85
ENDEC
IR
•
FAX (510) 668-7017
(2.25 to 5.5 V)
XTAL1
XTAL2
TX, RX,
RTS#, CTS#,
DTR#, DSR#,
RI#, CD#
VCC
GND
XR16L580
•
AH
www.exar.com
and T
GNugget_BLK
ADH
REV. 1.2.0
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