XR68C681JTR-F Overview
UART is available in the cost-effective PLCC package.There are 2 channels used for transmission.In terms of packaging, Tape & Reel (TR) is adopted.The operating temperature should not exceed -40°C to ensure normal work for a long time.The operating temperature should be in excess of 85°C to ensure the normal work for a long time.44 pins are designed to form the basis of its configuration.UART is mounted in the way of Surface Mount.Reliability can be ensured when the supply voltage is kept below 5.25V.Reliability can be ensured when the supply voltage is kept above 4.75V.The supply voltage of 5V is provided for its high-efficiency operation.
XR68C681JTR-F Features
Operating supply voltage of 5V

XR68C681JTR-F Applications
There are a lot of Exar Corporation
XR68C681JTR-F UARTs applications.

Factory automation and process control
Portable and battery operated devices
Cellular data devices
Industrial computing
Communications equipment
White goods
Battery Operated Electronics
Handheld Terminal
Personal Digital Assistants
Cellular Phones DataPort

Mount	Surface Mount
Package / Case	PLCC
Number of Pins	44
Packaging	Tape & Reel (TR)
Max Operating Temperature	85°C
Min Operating Temperature	-40°C
Operating Supply Voltage	5V
Number of Channels	2
Max Supply Voltage	5.25V
Min Supply Voltage	4.75V
Nominal Supply Current	15mA
Data Rate	1 Mbps
Radiation Hardening	No
RoHS Status	RoHS Compliant
Lead Free	Lead Free
Mounting Type	Surface Mount
Package / Case	44-LCC (J-Lead)
Feature	Internal Oscillator, Timer/Counter
Part Status	Discontinued
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Voltage - Supply	5V
Number of Channels	2, DUART
Data Rate (Max)	1Mbps