xr
XR17D154
REV. 1.2.0
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
ABSOLUTE MAXIMUM RATINGS
Power Supply Range (VCC)
Voltage at any PCI Bus Pin
Voltage at any non-PCI Bus Pin
Operating Temperature
7 volts
-0.5 to (VIO+0.5) volts
-0.5 to 7 volts
-40o to +85o C
-65o to +150o C
500 mW
Storage Temperature
Package Dissipation
Thermal Resistance (20x20x1.4mm 144-TQFP)
theta-ja = 42, theta-jc = 8
ELECTRICAL CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS FOR 5V PCI BUS INTERFACE (VIO = 4.75-5.25V, VCC = 4.5-5.5V)
TA=0o to 70oC (-40o to +85oC for industrial grade package).
SYMBOL
PARAMETER
MIN
MAX
UNITS
CONDITION
NOTES
VIL
VIH
Input Low Voltage
-0.5
0.8
V
All inputs
Input High Voltage
Input High Voltage
2.0
2.0
VIO + 0.5
V
V
PCI bus and
External Clock
inputs
VIH
6.0
Non-PCI bus
inputs
VOL
VOH
Output Low Voltage
Output High Voltage
0.55
V
V
Iout=6 mA
All outputs
All outputs
2.4
Iout=-2 mA
IIL
Input Low Leakage Current
Input High Leakage Current
Input Clock Leakage
-10
10
10
10
12
8
uA
uA
uA
pF
pF
pF
mA
IIH
ICL
CIN
CCLK
CIDSEL
ICC
Input Pin Capacitance
CLK Pin Capacitance
IDSEL Pin Capacitance
Power Supply Current
5
4
PCI Bus CLK and
Ext. Clock=2MHz, all
inputs are at VCC or
GND and all outputs
are unloaded
ISLEEP
Sleep Current
20
uA
All four UARTs
asleep. AD[31:0] at
GND, all inputs at
VCC or GND.
VCC must equal
VIO. See Sleep
Mode section on
page 19
53
EXAR [ EXAR CORPORATION ]
