XR16L651 Datasheet, PDF (39/56 Pages) Exar Corporation – 2.25V TO 5.5V UART WITH 32-BYTE FIFO

áç
REV. 1.3.0
XR16L651
2.25V TO 5.5V UART WITH 32-BYTE FIFO
ABSOLUTE MAXIMUM RATINGS
Power Supply Range
7 Volts
Voltage at Any Pin
-0.5 to 7V
Operating Temperature
-40^o to +85^oC
Storage Temperature
-65^o to +150^oC
Package Dissipation
500 mW
Thermal Resistance (7x7x1 mm 48-TQFP)
theta-ja = 59^oC/W, theta-jc = 16^oC/W
ELECTRICAL CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED: TA=0^O TO 70^OC (-40^O TO +85^OC FOR INDUSTRIAL GRADE PACKAGE), VCC IS 2.25V TO
5.5V
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
Input Low Leakage Current
I_IH
Input High Leakage Current
C_IN Input Pin Capacitance
I_CC Power Supply Current
I_SLEEP Sleep Current
LIMITS
2.5V
MIN
MAX
-0.3 0.6
LIMITS
3.3V
MIN
MAX
-0.3 0.6
LIMITS
5.0V
MIN
MAX
-0.5 0.6
UNITS
V
CONDITION
2.0 VCC 2.4 VCC 3.0 VCC
V
-0.3 0.6 -0.3 0.8 -0.5 0.8
V
2.0
6.0
2.0
6.0
2.0
6.0
V
See
Table
14
See
Table
14
See
V
Table
14
See
See
See
V
Table
Table
Table
15
15
15
+/-10
+/-10
+/-10 uA
+/-10
+/-10
+/-10 uA
5
5
5
pF
1.0
1.0
1.3
mA Crystal or
external clock
of 16 MHz
20
20
30
uA See Test 1
Test 1: The following inputs should remain steady at VCC or GND state to minimize sleep current: A0-A2, D0-D7, IOR#,
IOW#, CS# and modem inputs. Also, RX input must idle at logic 1 state while in sleep mode. In mixed voltage
environments, where the voltage at any of the inputs of the 651 is lower than its VCC supply voltage, the sleep current will
be higher than the maximum values given here.
39