xr20m1172 Exar Corporation, xr20m1172 Datasheet - Page 42

• Manufacturer Part Number: xr20m1172
• Description: Two Channel I2c/spi Uart With 64-byte Fifo
• Manufacturer: Exar Corporation

XR20M1172
TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO
ABSOLUTE MAXIMUM RATINGS
TYPICAL PACKAGE THERMAL RESISTANCE DATA (
DC ELECTRICAL CHARACTERISTICS
TA= -40
Test 1: The following inputs must remain steady at VCC or GND state to minimize Sleep current: serial data,
serial clock and all modem inputs are idle. Also, RX input must idle HIGH while asleep. Floating inputs will
result in sleep currents in the mA range.
Power Supply Range
Voltage at Any Pin
Operating Temperature
Storage Temperature
Package Dissipation
Thermal Resistance (32-QFN)
Thermal Resistance (28-TSSOP)
5.0 ELECTRICAL CHARACTERISTICS
S
I
V
V
YMBOL
SLEEP
V
V
V
C
I
V
IHCK
ILCK
I
I
CC
OH
IH
OL
IL
IH
IN
IL
o
to +85
Clock Input Low Level
Clock Input High Level
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Input Low Leakage Current
Input High Leakage Current
Input Pin Capacitance
Power Supply Current
Sleep Current
o
C, Vcc is 1.62V to 3.63V
P
ARAMETER
M
-0.3
-0.3
1.4
1.4
1.4
IN
L
1.8V
IMITS
VCC
VCC
M
±10
±10
250
0.3
0.2
0.4
15
5
AX
42
M
-0.3
-0.3
1.8
1.8
1.8
IN
MARGIN OF ERROR: ± 15%
L
2.5V
IMITS
VCC
VCC
M
±10
±10
250
0.6
0.5
0.4
20
5
AX
theta-ja = 33
theta-ja = 76
M
-0.3
-0.3
2.4
2.0
2.0
IN
L
3.3V
IMITS
GND-0.3V to 4V
-65
-40
o
o
C/W, theta-jc = 22
C/W, theta-jc = 14
VCC
VCC
M
±10
±10
500
o
0.6
0.8
0.4
500 mW
30
o
4 Volts
5
AX
to +150
to +85
)
U
o
uA
uA
pF
uA
uA
o
NITS
C
V
V
V
V
V
V
V
V
V
V
C
I
I
I
I
I
I
XTAL1 = 2 MHz
See Test 1
OL
OL
OL
OH
OH
OH
o
o
C/W
C/W
C
= 4 mA
= 2 mA
= 1.5 mA
= -1 mA
= -400 uA
= -200 uA
ONDITIONS
REV. 1.0.0