XR16L2552
36
2.25V TO 5.5V DUART WITH 16-BYTE FIFO REV. 1.1.2
ELECTRICAL CHARACTERISTICS
Test 1: The following inputs must remain steady at VCC or GND state to minimize Sleep current: A0-A2, D0-
D7, IOR#, IOW#, CS#, CHSEL, and all modem inputs. Also, RXA and RXB inputs must idle at logic 1 state
while asleep. Floating inputs will result in sleep currents in the mA range. For PowerSave feature that isolates
address, data and control signals, please see the XR16L2551 datasheet.
ABSOLUTE MAXIMUM RATINGS
Power Supply Range 7 Volts
Voltage at Any Pin GND-0.3 V to +5.5 V
Operating Temperature
-40
o
to +85
o
C
Storage Temperature
-65
o
to +150
o
C
Package Dissipation 500 mW
DC ELECTRICAL CHARACTERISTICS
Unless otherwise noted: 40
o
to +85
o
C for industrial grade package, Vcc is 2.25 to 5.5V
SYMBOL PARAMETER
LIMITS
2.5V
M
IN MAX
LIMITS
3.3V
M
IN MAX
LIMITS
5.0V
M
IN MAX
UNITS CONDITIONS
V
ILCK
Clock Input Low Level -0.3 0.2 -0.3 0.6 -0.5 0.6 V
V
IHCK
Clock Input High Level 2.0 5.5 2.4 5.5 3.0 5.5 V
V
IL
Input Low Voltage -0.3 0.6 -0.3 0.8 -0.5 0.8 V
V
IH
Input High Voltage 2.0 5.5 2.0 5.5 2.2 5.5 V
V
OL
Output Low Voltage
0.4
0.4
0.4 V
V
V
I
OL
= 6 mA
I
OL
= 4 mA
I
OL
= 2 mA
V
OH
Output High Voltage
1.8
2.0
2.4 V
V
V
I
OH
= -6 mA
I
OH
= -1 mA
I
OH
= -400 uA
I
IL
Input Low Leakage Current ±10 ±10 ±10 uA
I
IH
Input High Leakage Current ±10 ±10 ±10 uA
C
IN
Input Pin Capacitance 5 5 5 pF
I
CC
Power Supply Current 1 1.3 3 mA
I
SLEEP
Sleep Current 6 15 30 uA See Test 1
