XR16L2551 Datasheet, PDF (37/48 Pages) Exar Corporation – LOW VOLTAGE DUART WITH POWERSAVE

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REV. 1.0.0
ABSOLUTE MAXIMUM RATINGS
Power Supply Range
Voltage at Any Pin
Operating Temperature
Storage Temperature
Package Dissipation
XR16L2551
LOW VOLTAGE DUART WITH POWERSAVE
7 Volts
GND-0.3 V to VCC+0.3 V
-40^o to +85^oC
-65^o to +150^oC
500 mW
TYPICAL PACKAGE THERMAL RESISTANCE DATA (MARGIN OF ERROR: ± 15%)
Thermal Resistance (48-TQFP)
theta-ja =59^oC/W, theta-jc = 16^oC/W
Thermal Resistance (32-QFN)
theta-ja = ^oC/W, theta-jc = ^oC/W
ELECTRICAL CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED: TA=-40^O TO +85^OC, VCC IS 2.25 TO 5.5V
SYMBOL
PARAMETER
2.5V LIMITS
MIN
MAX
3.3V LIMITS
MIN
MAX
V_ILCK
V_IHCK
V_IL
V_IH
V_OL
Clock Input Low Level
Clock Input High Level
Input Low Voltage
Input High Voltage
Output Low Voltage
-0.3 0.2 -0.3 0.6
2.0
5.5
2.4
5.5
-0.3 0.6 -0.3 0.8
2.0
5.5
2.0
5.5
0.4
0.4
V_OH Output High Voltage
2.0
1.8
I_IL
Input Low Leakage Current
±10
±10
I_IH
Input High Leakage Current
±10
±10
C_IN Input Pin Capacitance
5
5
I_CC Power Supply Current
1
1.3
I_SLEEP Sleep Current/
I_PWRSV ^{Powersave Current}
6
15
5.0V LIMITS
MIN
MAX
-0.5 0.6
UNITS
V
CONDITIONS
3.0
5.5
V
-0.5 0.8
V
2.2
5.5
V
0.4
V I_OL = 6 mA
V I_OL = 4 mA
V I_OL = 2 mA
2.4
V I_OH = -6 mA
V I_OH = -1 mA
V I_OH = -400 uA
±10 uA
±10 uA
5
pF
3
mA
30
uA See Test 1
Test 1: The following inputs must remain steady at VCC or GND state to minimize sleep current: A0-A2, D0-D7,
IOR#, IOW# (R/W#), CSA# (CS#), CSB# (A3) and all modem inputs. Also, RXA and RXB inputs must idle at
logic 1 state while asleep. Floating inputs may result in sleep currents in the mA range. For Powersave, the
UART internally isolates all of these inputs therefore not requiring them to remain steady.
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