|
|
PDF XRA1207 Data sheet ( Hoja de datos )
| Número de pieza | XRA1207 | |
| Descripción | 16-BIT I2C/SMBUS GPIO EXPANDER | |
| Fabricantes | Exar | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de XRA1207 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
|
No Preview Available !
XRA1207
16-BIT I2C/SMBUS GPIO EXPANDER WITH INTEGRATED LEVEL SHIFTERS
SEPTEMBER 2011
REV. 1.0.0
GENERAL DESCRIPTION
The XRA1207 is a 16-bit GPIO expander with an I2C/
SMBus interface. After power-up, the XRA1207 has
internal 100K ohm pull-up resistors on each I/O pin
that can be individually enabled.
In addition, the GPIOs on the XRA1207 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 XRA1207 is an enhanced version of the
TCA6416. The XRA1207 is pin and software
compatible with the TCA6416.
The XRA1207 is available in 24-pin QFN and 24-pin
TSSOP packages.
FEATURES
• 1.65V to 3.6V operating voltage
• Integrated Level Shifters
• 16 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 4 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
• Active-low reset input
• Pin and software compatible with TCA6416
• 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
1 page  
XRA1207
REV. 1.0.0
16-BIT I2C/SMBUS GPIO EXPANDER WITH INTEGRATED LEVEL SHIFTERS
1.1.1 I2C-bus Addressing
There could be many devices on the I2C-bus. To distinguish itself from the other devices on the I2C-bus, the
XRA1207 has up to 4 I2C slave addresses using the A0 address line. Table 1 below shows the different
addresses that can be selected.
TABLE 1: I2C ADDRESS MAP
A0
GND
VCC
SCL
SDA
I2C ADDRESS
0x40 (0100 000X)
0x42 (0100 001X)
0x50 (0101 000X)
0x52 (0101 001X)
1.1.2 I2C Read and Write
A read or write transaction is determined by bit-0 of the slave address. If bit-0 is ’0’, then it is a write
transaction. If bit-0 is ’1’, then it is a read transaction.
5
5 Page 
REV. 1.0.0
XRA1207
16-BIT I2C/SMBUS GPIO EXPANDER WITH INTEGRATED LEVEL SHIFTERS
ABSOLUTE MAXIMUM RATINGS
Power supply voltage
Supply current
Ground current
External current limit of each GPIO
Total current limit for GPIO[15:8] and GPIO[7:0]
Total current limit for GPIO[15:0]
Total supply current sourced by all GPIOs
Operating Temperature
Storage Temperature
Power Dissipation
3.6 Volts
160 mA
200 mA
25 mA
100 mA
200 mA
160 mA
-40o to +85oC
-65o to +150oC
200 mW
TYPICAL PACKAGE THERMAL RESISTANCE DATA (MARGIN OF ERROR: ± 15%)
Thermal Resistance (24-QFN)
Thermal Resistance (24-TSSOP)
theta-ja = 38oC/W, theta-jc = 26oC/W
theta-ja = 84oC/W, theta-jc = 16oC/W
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet XRA1207.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| XRA1200 | 8-BIT I2C/SMBUS GPIO EXPANDER | Exar |
| XRA1200P | 8-BIT I2C/SMBUS GPIO EXPANDER | Exar |
| XRA1201 | 16-BIT I2C/SMBUS GPIO EXPANDER | Exar |
| XRA1201P | 16-BIT I2C/SMBUS GPIO EXPANDER | Exar |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |