XR20M1170IL16 EXAR [Exar Corporation], XR20M1170IL16 Datasheet
![no-image](/images/no-image-200.jpg)
XR20M1170IL16
Manufacturer Part Number
XR20M1170IL16
Description
I2C/SPI UART WITH 64-BYTE FIFO
Manufacturer
EXAR [Exar Corporation]
Datasheet
1.XR20M1170IL16.pdf
(60 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XR20M1170IL16-F
Manufacturer:
EXAR
Quantity:
2 243
Part Number:
XR20M1170IL16-F
Manufacturer:
EXAR/艾科嘉
Quantity:
20 000
MAY 2007
GENERAL DESCRIPTION
The XR20M1170
universal asynchronous receiver and transmitter
(UART) with 64 byte TX and RX FIFOs and a
selectable I
operates from 1.62 to 3.63 volts. The enhanced
features in the M1170 include a programmable
fractional baud rate generator, an 8X and 4X
sampling rate that allows for a maximum baud rate of
16 Mbps at 3.3V. The standard features include 16
selectable TX and RX FIFO trigger levels, automatic
hardware (RTS/CTS) and software (Xon/Xoff) flow
control, and a complete modem interface. Onboard
registers provide the user with operational status and
data error flags. An internal loopback capability
allows system diagnostics. The M1170 is available in
the 28-pin QFN, 24-pin QFN, 16-pin QFN, 24-pin
TSSOP and 16-pin TSSOP packages. The 28-pin
QFN package has the EN485# and ENIR# pins to
allow the UART to power-up in the Auto RS485 mode
or the Infrared mode.
N
APPLICATIONS
•
•
•
•
Exar
F
OTE
IGURE
Portable Appliances
Battery-Operated Devices
Cellular Data Devices
Factory Automation and Process Controls
:
I2C/SPI#
Corporation 48720 Kato Road, Fremont CA, 94538
EN485#
A0/CS#
1 Covered by U.S. Patent #5,649,122
ENIR#
1. XR20M1170 B
A1/SI
IRQ#
VCC
SDA
SCL
SO
2
C/SPI slave interface. The M1170
1
(M1170) is a high performance
LOCK
1.62V – 3.63V
Interface
I
2
C/SPI
D
IAGRAM
•
(510) 668-7000
FEATURES
•
•
•
•
•
1.62 to 3.6 Volt Operation
Selectable I
Full-featured UART
Crystal oscillator (up to 24MHz) or external clock
(up to 64MHz) input
28-QFN, 24-QFN, 16-QFN, 24-TSSOP, 16-TSSOP
packages
Crystal Osc/Buffer
UART
Regs
BRG
■
■
■
■
■
■
■
■
■
■
■
■
■
■
Data rate of up to 16 Mbps at 3.3 V
Data rate of up to 12.5 Mbps at 2.5 V
Data rate of up to 8 Mbps at 1.8 V
Fractional Baud Rate Generator
Transmit and Receive FIFOs of 64 bytes
16 Selectable TX and RX FIFO Trigger Levels
Automatic Hardware (RTS/CTS) Flow Control
Automatic Software (Xon/Xoff) Flow Control
Halt and Resume Transmission Control
Automatic
Control Output via RTS#
Wireless Infrared (IrDA 1.0 and 1.1) Encoder/
Decoder
Automatic sleep mode (< 15 uA at 3.3V)
General Purpose I/Os
Full modem interface
I2C/SPI UART WITH 64-BYTE FIFO
•
FAX (510) 668-7017
RX FIFO
TX FIFO
2
64 Byte
64 Byte
GPIOs
C/SPI Interface
RS-485
Half-duplex
•
www.exar.com
XR20M1170
TX
RX
RTS#
CTS#
GPIO[7:0]
XTAL1
XTAL2
REV. 1.0.0
Direction