xr82c684 Exar Corporation, xr82c684 Datasheet - Page 11

• Manufacturer Part Number: xr82c684
• Description: Cmos Quad Channel Uart Quart
• Manufacturer: Exar Corporation

DC ELECTRICAL CHARACTERISTICS
Test Conditions:
Notes
1
2
3
4
Parameters are valid over the specified temperature and operating supply ranges. Typical values are 25
C, V
processing parameters.
All voltages are referenced to ground (GND). For testing, input signal levels are 0.4V and 2.4V with a transition time of 20ns
maximum. All time measurements are referenced at input voltages of 0.8V and 2.0V as appropriate. See NO TAG.
Measured operating with a 3.6864 MHz crystal and with all outputs open.
The minimum high time must be at least 1.5 times the X1/CLK period and the minimum low time must be at least equal to the X1/CLK
period if either channel’s Receiver is operating in external 1X clock mode.
Symbol
Parameter



1, 2
Min.
Typ.
Max.
Unit
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•
•
•
•
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Conditions
XR82C684
•
CC
= 5V and typical