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參數資料
| 型號： | XR20M1170L28-0A-EB |
| 廠商： | Exar Corporation |
| 文件頁數： | 1/56頁 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR20M1170 28QFN |
| 標準包裝： | 1 |
| 主要目的： | 接口，UART |
| 嵌入式： | 否 |
| 已用 IC / 零件： | XR20M1170 |
| 次要屬性： | I²C & SPI 接口 |
| 已供物品： | 板 |
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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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相關代理商/技術參數 |
參數描述 |
|---|---|
| XR20M1170L28-0B-EB | 功能描述:界面開發工具 Supports M1170 28pin QFN, SPI Interface RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR20M1172 | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO |
| XR20M1172_09 | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO |
| XR20M1172G28-0A-EB | 功能描述:UART 接口集成電路 Supports M1172 28 ld TSSOP, I2C Interface RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR20M1172G28-0B-EB | 功能描述:界面開發工具 Supports M1172 28 ld TSSOP, SPI Interface RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
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