Datasheet > XR20M1280IL24TR-F

XR20M1280IL24TR-F

更新时间： 2024-01-05 07:40:42

品牌	Logo	应用领域
艾科嘉 - EXAR		通信时钟数据传输外围集成电路
页数	文件大小	规格书
63页	2355K
描述
IC UART I2C/SPI 128 BYTE 24QFN

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中文翻译

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数据手册

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XR20M1280

I2C/SPI UART with 128-byte FIFO and Integrated Level Shifters

July 5, 2021

Rev. 1.0.1

FEATURES

GENERAL DESCRIPTION

 Integrated Level Shifters on CPU interface, 

The XR20M1280 is

single-channel I C/SPI

UART and GPIO signals

Universal Asynchronous Receiver and Transmitter

(UART) with integrated level shifters and 128 bytes of

transmit and receive FIFOs.

 Selectable I C/SPI bus interface

 26MHz maximum SPI clock

For flexibility in a mixed voltage environment, the

XR20M1280 has 4 VCC pins. There is a VCC pin for

the core, a VCC pin for the UART signals, a VCC pin

for the CPU interface signals and a VCC pin for the

GPIO signals. The VCC pins for the UART, GPIO and

 24Mbps maximum UART data rate

 Up to 8 GPIOs

 128-Bytes TX and RX FIFOs

 Programmable TX/RX trigger levels

 TX/RX FIFO Level Counters

I C/SPI interface signals allow for the XR20M1280 to

interface with devices operating at different voltage

levels eliminating the need for external voltage level

shifters. The VCC pin for the core voltage helps lower

the overall power consumption of applications that

use slower data rates.

 Independent TX/RX Baud Rate Generator

 Fractional Baud Rate Generator

 Auto RTS/CTS Hardware Flow Control

 Auto XON/XOFF Software Flow Control

 Auto RS-485 Half-Duplex Direction Control

 Multidrop mode w/ Auto Address Detect (RX)

 Multidrop mode w/ Address Byte Control (TX)

 Sleep Mode with Automatic Wake-up

 Infrared (IrDA 1.0 and 1.1) mode

 1.62V to 3.63V supply operation

 5V tolerant inputs

The Auto RS-485 Half-Duplex Direction control

feature simplifies both the hardware and software for

half-duplex RS-485 applications. In addition, the

Multidrop mode with Auto Address detection and

Address Byte Control features increase the

performance by simplifying the software routines.

The Independent TX/RX Baud Rate Generator

feature allows the transmitter and receiver to operate

at different baud rates. In addition, the Fractional

Baud Rate Generator feature provides flexibility for

crystal/clock frequencies for generating standard and

non-standard baud rates.

 Crystal oscillator or external clock input

APPLICATIONS

The XR20M1280 has programmable transmit and

receive FIFO trigger levels, automatic hardware and

software flow control, and data rates of up to 24

Mbps. Power consumption of the XR20M1280 can be

minimized by enabling the sleep mode.

 Personal Digital Assistants (PDA)

 Cellular Phones/Data Devices

 Battery-Operated Devices

The XR20M1280 has a 16550 compatible register set

that provide users with operating status and control,

receiver error indications, and modem serial interface

controls. An internal loopback capability allows

 Global Positioning System (GPS)

 Bluetooth

onboard diagnostics. The XR20M1280 has

selectable I C/SPI bus interface.

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

12 3 4 5 6 7...63

中文翻译

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与XR20M1280IL24TR-F相关器件

型号	品牌	获取价格	描述	数据表
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
XR20M1280L32-0A-EB	EXAR	获取价格	EVAL BOARD FOR XR20M1280L32
XR20M1280L32-0B	EXAR	获取价格	I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
XR20M1280L32-0B-EB	EXAR	获取价格	EVAL BOARD FOR XR20M1280L32
XR20V2170	EXAR	获取价格	I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER

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