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参数资料
型号： XR20M1170L16-0A-EB
厂商： Exar Corporation
文件页数： 1/56页
文件大小： 0K
描述： EVAL BOARD FOR XR20M1170 16QFN
标准包装： 1
主要目的： 接口，UART
嵌入式： 否
已用 IC / 零件： XR20M1170
次要属性： I²C & SPI 接口
已供物品： 板
其它名称： 1016-1618
XR20M1170L16-0A-EB-ND
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR20M1170
I2C/SPI UART WITH 64-BYTE FIFO
JULY 2012
REV. 1.1.0
GENERAL DESCRIPTION
The XR20M11701 (M1170) is a high performance
universal asynchronous receiver and transmitter
(UART) with 64 byte TX and RX FIFOs and a
selectable I2C/SPI slave interface. The M1170
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 24-pin QFN, 16-pin QFN, 24-pin TSSOP and 16-
pin TSSOP packages.
NOTE: 1 Covered by U.S. Patent #5,649,122
APPLICATIONS
Portable Appliances
Battery-Operated Devices
Cellular Data Devices
Factory Automation and Process Controls
FEATURES
1.62 to 3.6 Volt Operation
Selectable I2C/SPI Interface
SPI clock frequency up to
■ 18 MHz at 3.3 V
■ 16 MHz at 2.5 V
■ 8 MHz at 1.8 V
Full-featured UART
■ 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
RS-485
Half-duplex
Direction
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
Crystal oscillator (up to 24MHz) or external clock
(up to 64MHz) input
24-QFN,
16-QFN,
24-TSSOP,
16-TSSOP
packages
FIGURE 1. XR20M1170 BLOCK DIAGRAM
I2C/SPI
Interface
I2C/SPI#
SO
A1/SI
A0/CS#
SCL
SDA
IRQ#
Crystal Osc/Buffer
BRG
UART
Regs
XTAL2
XTAL1
64 Byte
TX FIFO
GPIOs
TX
RX
CTS#
RTS#
GPIO[7:0]
1.62V – 3.63V
VCC
64 Byte
RX FIFO
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相关代理商/技术参数
参数描述
XR20M1170L16-0B-EB 功能描述:UART 接口集成电路 Supports M1170 16pin QFN, SPI Interface RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR20M1170L24-0A-EB 功能描述:UART 接口集成电路 Supports M1170 24pin QFN, I2C Interface RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR20M1170L24-0B-EB 功能描述:UART 接口集成电路 Supports M1170 28pin QFN, SPI Interface RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR20M1170L28-0A-EB 功能描述:UART 接口集成电路 Supports M1170 28pin QFN, I2C Interface RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR20M1170L28-0B-EB 功能描述:界面开发工具 Supports M1170 28pin QFN, SPI Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V
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