XR16V2751 Datasheet, PDF (40/52 Pages) Exar Corporation – HIGH PERFORMANCE DUART WITH 64-BYTE FIFO AND POWERSAVE FEATURE

XR16V2751
PRELIMINARY
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO AND POWERSAVE FEATURE
xr
REV. P1.0.0
ABSOLUTE MAXIMUM RATINGS
Power Supply Range
Voltage at Any Pin
Operating Temperature
Storage Temperature
Package Dissipation
7 Volts
GND-0.3V to 7V
-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
ELECTRICAL CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS
TA=0^O TO 70^OC (-40^O TO +85^OC FOR INDUSTRIAL GRADE PACKAGE), VCC IS 2.25V TO 3.6V
SYMBOL
PARAMETER
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
V_OH
Output High Voltage
I_IL
I_IH
C_IN
I_CC
I_SLEEP
Input Low Leakage Current
Input High Leakage Current
Input Pin Capacitance
Power Supply Current
Sleep Current
LIMITS
2.5V
MIN
MAX
-0.3
0.2
2.0
VCC
-0.3
0.6
2.0
5.5
0.4
1.8
±10
±10
5
1.2
6
LIMITS
3.3V
MIN
MAX
-0.3
0.6
2.4
VCC
-0.3
0.8
2.0
5.5
0.4
2.0
±10
±10
5
2
15
UNITS
CONDITIONS
V
V
V
V
V
I_OL = 4 mA
V
I_OL = 2 mA
V
I_OH = -1 mA
V
I_OH = -400 uA
uA
uA
pF
mA
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
HIGH while asleep. Floating inputs may result in sleep currents in the mA range.
For PowerSave, the UART internally isolates all of these inputs (except the modem inputs) therefore
eliminating any unnecessary external buffers to keep the inputs steady. SEE ”POWERSAVE FEATURE” ON
PAGE 20.
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