Datasheet > XR20M1172L32-0A-EB

XR20M1172L32-0A-EB

更新时间： 2024-10-02 22:59:19

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
58页	3315K
描述
EVAL BOARD FOR XR20M1172 32QFN

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XR20M1172

TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO

REV. 1.2.1

JULY 2018

FEATURES

GENERAL DESCRIPTION

 1.62 to 3.6 Volt Operation

 Selectable I²C/SPI Interface

The XR20M1172 is a high performance two channel

universal asynchronous receiver and transmitter

(UART) with 64 byte TX and RX FIFOs and a

 SPI clock frequency up to

selectable I²C/SPI slave interface. The XR20M1172

operates from 1.62 to 3.63 volts. 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

■ 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

internal

loopback

capability

allows

system

■ Data rate of up to 12.5 Mbps at 2.5 V

■ Data rate of up to 8 Mbps at 1.8 V

diagnostics. Additional enhanced features includes a

programmable fractional baud rate generator and 8X

and 4X sampling rate that allows for a maximum baud

rate of 16 Mbps at 3.3V. The XR20M1172 is available

in the 32-pin QFN and 28-pin TSSOP packages. The

32-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.

■ 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

NOTE: 1 Covered by U.S. Patent #5,649,122

■ Automatic RS-485 Half-duplex Direction

APPLICATIONS

Control Output via RTS#

 Portable Appliances

■ Wireless Infrared (IrDA 1.0 and 1.1) Encoder/

Decoder

 Battery-Operated Devices

 Cellular Data Devices

■ Automatic sleep mode (< 30 uA at 3.3V)

■ General Purpose I/Os

 Factory Automation and Process Controls

■ Full modem interface

 Crystal oscillator (up to 24MHz) or external clock

(up to 64MHz) input

 32-QFN and 28-TSSOP packages

FIGURE 1. XR20M1172 BLOCK DIAGRAM

V C C

1 . 6 2 V – 3 . 6 3 V

C h a n n e l 1

T X A

R X A

6 4 B y te

T X F IF O

E N IR #

E N 4 8 5 #

IR Q #

U A R T

R e g s

R T S A #

C T S A #

6 4 B y te

R X F IF O

R E S E T #

S D A

B R G

I²C / S P I

In te rfa c e

S C K

A 0 / C S #

A 1 / S I

S O

[

]

G P IO 7:0

G P IO s

T X B

R X B

U A R T C h a n n e l 2

(S im ila r to C h a n n e l1 )

R T S B #

C T S B #

C ry s ta l

O s c

B u ffe r

I2 C / S P I

12 3 4 5 6 7...58

中文翻译

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与XR20M1172L32-0A-EB相关器件

型号	品牌	获取价格	描述	数据表
XR20M1172L32-0B-EB	ETC	获取价格	EVAL BOARD FOR XR20M1172 32QFN
XR20M1280	EXAR	获取价格	I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
XR20M1280IL24-F	EXAR	获取价格	IC UART I2C/SPI 128 BYTE 24QFN
XR20M1280IL24TR-F	EXAR	获取价格	IC UART I2C/SPI 128 BYTE 24QFN
XR20M1280IL32-F	EXAR	获取价格	I2C Bus Controller, 1 Channel(s), 3MBps, CMOS, 5 X 5 MM, 0.90 MM HEIGHT, GREEN, QFN-32
XR20M1280IL32TR-F	EXAR	获取价格	I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
XR20M1280IL40-F	EXAR	获取价格	I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
XR20M1280IL40TR-F	EXAR	获取价格	I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
XR20M1280L24-0A-EB	EXAR	获取价格	EVAL BOARD FOR XR20M1280
XR20M1280L24-0B-EB	EXAR	获取价格	EVAL BOARD FOR XR20M128024

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