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XRA1200 Datasheet Preview

XRA1200 Datasheet

8-BIT I2C/SMBUS GPIO EXPANDER

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XRA1200/1200P
8-BIT I2C/SMBUS GPIO EXPANDER
SEPTEMBER 2011
REV. 1.0.0
GENERAL DESCRIPTION
The XRA1200/1200P is an 8-bit GPIO expander with
an I2C/SMBus interface. After power-up, the
XRA1200 has internal 100K ohm pull-up resistors on
each I/O pin that can be individually enabled. The
XRA1200P have the internal pull-up resistors
enabled upon power-up in case it is necessary for the
inputs to be in a known state.
In addition, the GPIOs on the XRA1200/1200P can
individually be controlled and configured. As outputs,
the GPIOs can be outputs that are high, low or in
three-state mode. The three-state mode feature is
useful for applications where the power is removed
from the remote devices, but they may still be
connected to the GPIO expander.
As inputs, the internal pull-up resistors can be
enabled or disabled and the input polarity can be
inverted. The interrupt can be programmed for
different behaviors. The interrupts can be
programmed to generate an interrupt on the rising
edge, falling edge or on both edges. The interrupt
can be cleared if the input changes back to its original
state or by reading the current state of the inputs.
The XRA1200/1200P are enhanced versions of other
8-bit GPIO expanders with an I2C/SMBus interface.
The XRA1200 is pin and software compatible with the
CAT9534 and PCA9534. The XRA1200P is pin and
software compatible with the CAT9554 and
PCA9554. The XRA1200/1200P are also pin
compatible with the PCA9554A and TCA9554A.
The XRA1200/1200P are available in 16-pin QFN
and 16-pin TSSOP packages.
FEATURES
1.65V to 3.6V operating voltage
8 General Purpose I/Os (GPIOs)
5V tolerant inputs
Maximum stand-by current of 1uA at +1.8V
I2C/SMBus bus interface
I2C clock frequency up to 400kHz
Noise filter on SDA and SCL inputs
Up to 32 I2C Slave Addresses
Individually programmable inputs
Internal pull-up resistors
Polarity inversion
Individual interrupt enable
Rising edge and/or Falling edge interrupt
Input filter
Individually programmable outputs
Output Level Control
Output Three-State Control
Open-drain active low interrupt output
Pin and software compatible with CAT9534,
CAT9554, PCA9534, and PCA9554
3kV HBM ESD protection per JESD22-A114F
200mA latch-up performance per JESD78B
APPLICATIONS
Personal Digital Assistants (PDA)
Cellular Phones/Data Devices
Battery-Operated Devices
Global Positioning System (GPS)
Bluetooth
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com




Exar

XRA1200 Datasheet Preview

XRA1200 Datasheet

8-BIT I2C/SMBUS GPIO EXPANDER

No Preview Available !

XRA1200/1200P
8-BIT I2C/SMBUS GPIO EXPANDER
FIGURE 1. XRA1200 BLOCK DIAGRAM
VCC
(1.65V – 3.6V)
SCL
SDA
A2
A1
A0
IRQ#
GND
I2C/
SMBus
Interface
GPIO
Control
Registers
GPIOs
REV. 1.0.0
P0
P1
P2
P3
P4
P5
P6
P7
ORDERING INFORMATION
PART NUMBER
XRA1200IL16-F
XRA1200IL16TR-F
XRA1200PIL16-F
XRA1200PIL16TR-F
XRA1200IG16-F
XRA1200IG16TR-F
XRA1200PIG16-F
XRA1200PIG16TR-F
PACKAGE
QFN-16
QFN-16
QFN-16
QFN-16
TSSOP-16
TSSOP-16
TSSOP-16
TSSOP-16
NUMBER OF
GPIOS
8
8
8
8
8
8
8
8
NOTE: TR = Tape and Reel, F = Green / RoHS
OPERATING TEMPERATURE
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
DEVICE STATUS
Active
Active
Active
Active
Active
Active
Active
Active
FIGURE 2. PIN OUT ASSIGNMENTS
16 15 14 13
A2 1
12 SCL
P0
2
XRA1200/ 11 IRQ#
XRA1200P
P1 3 16-Pin QFN 10 P7
P2
45
6
7
9 P6
8
A0 1
A1 2
A2 3
P0 4
P1 5
P2 6
P3 7
GND 8
XRA1200/
XRA1200P
16-Pin TSSOP
16 VCC
15 SDA
14 SCL
13 IRQ#
12 P7
11 P6
10 P5
9 P4
2


Part Number XRA1200
Description 8-BIT I2C/SMBUS GPIO EXPANDER
Maker Exar
Total Page 16 Pages
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