Mfr Part #:

XR20M1172IG28TR-F

Mfr Name: Exar

The Exar XR20M1172IG28TR-F is a high-performance two-channel universal asynchronous receiver and transmitter (UART) with 64-byte FIFOs. It features a selectable I2C/SPI slave interface and operates from 1.62 to 3.63 volts.

✓ Total Stock: 338 pcs

$ Price Range: $1.92

XR20M1172IG28TR-F Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Rayichip ✓ Non-Authorised Inventory information	338 pcs On Request	338 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

XR20M1172IG28TR-F Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Exar
Interface	I2C/SPI
Mounting Type	Surface Mount
Operating Temperature	-40°C to 85°C
Tape & Reel	Yes
Voltage	1.62 to 3.63 V

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XR20M1172IG28TR-F Description

Short technical summary and product information.

The XR20M1172IG28TR-F from Exar (MaxLinear) is a versatile two-channel UART designed for high-performance applications. It supports both I2C and SPI slave interfaces, offering flexibility in system integration. The device features 64-byte transmit and receive FIFOs, along with 16 selectable trigger levels, to enhance data throughput and reduce CPU overhead.

Operating within a voltage range of 1.62V to 3.63V, the XR20M1172IG28TR-F can achieve data rates of up to 16 Mbps at 3.3V. It includes standard UART features such as automatic hardware (RTS/CTS) and software (Xon/Xoff) flow control, a complete modem interface, and a programmable fractional baud rate generator. Enhanced features include automatic RS-485 half-duplex direction control and wireless infrared encoding/decoding capabilities.

This UART is available in a 28-pin TSSOP package, suitable for surface mount applications. Its robust feature set makes it ideal for portable appliances, battery-operated devices, cellular data devices, and factory automation systems requiring reliable serial communication.

XR20M1172IG28TR-F Quick Information

Product Type: UART

Canonical Name: XR20M1172IG28TR-F Two Channel I2C/SPI UART with 64-Byte FIFO

Subcategory: Interface Controllers

XR20M1172IG28TR-F Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

XR20M1172IG28TR-F Estimated Pricing

Qty	Low	High
1+	$1.92	$1.92

Estimated market price range - modelled values for guidance only, not live distributor offers.

XR20M1172IG28TR-F Features

Two-channel UART with I2C/SPI interface.
64-byte transmit and receive FIFOs.
Data rates up to 16 Mbps at 3.3V.
Operates from 1.62V to 3.63V.
Automatic hardware and software flow control.

XR20M1172IG28TR-F Applications

Ideal for portable appliances.
Suitable for battery-operated devices.
Used in cellular data devices.
Applicable to factory automation.

XR20M1172IG28TR-F FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range for the XR20M1172IG28TR-F?

The XR20M1172IG28TR-F operates from 1.62V to 3.63V.

What interface types does the XR20M1172IG28TR-F support?

The XR20M1172IG28TR-F supports selectable I2C/SPI slave interfaces.

What is the maximum SPI clock frequency supported by the XR20M1172IG28TR-F at 3.3V?

The maximum SPI clock frequency is 18 MHz at 3.3V.

What is the maximum data rate for the XR20M1172IG28TR-F at 3.3V?

The maximum data rate is 16 Mbps at 3.3V.

What is the FIFO size for the XR20M1172IG28TR-F?

The XR20M1172IG28TR-F has 64-byte transmit and receive FIFOs.

What are the flow control options available on the XR20M1172IG28TR-F?

It supports automatic hardware (RTS/CTS) and automatic software (Xon/Xoff) flow control.

What is the operating temperature range for the XR20M1172IG28TR-F?

The operating temperature range is -40°C to 85°C.