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XRA1202IL16TR-F

更新时间： 2024-11-19 00:56:03
品牌 Logo 应用领域
艾科嘉 - EXAR /
页数 文件大小 规格书
16页 155K
描述
8-BIT I2C/SMBUS GPIO EXPANDER WITH RESET

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XRA1202IL16TR-F 数据手册

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XRA1202/1202P  
8-BIT I2C/SMBUS GPIO EXPANDER WITH RESET  
APRIL 2013  
REV. 1.0.1  
FEATURES  
GENERAL DESCRIPTION  
•
•
•
•
•
1.65V to 3.6V operating voltage  
8 General Purpose I/Os (GPIOs)  
5V tolerant inputs  
The XRA1202/1202P is an 8-bit GPIO expander with  
an I2C/SMBus interface.  
After power-up, the  
XRA1202 has internal 100K ohm pull-up resistors on  
each I/O pin that can be individually enabled. The  
XRA1202P has the internal pull-up resistors enabled  
upon power-up in case it is necessary for the inputs  
to be in a known state.  
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  
In addition, the GPIOs on the XRA1202/1202P 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.  
■
Up to 16 I2C Slave Addresses  
•
Individually programmable inputs  
■
■
■
■
■
Internal pull-up resistors  
Polarity inversion  
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  
Individual interrupt enable  
Rising edge and/or Falling edge interrupt  
Input filter  
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.  
•
Individually programmable outputs  
■
■
Output Level Control  
Output Three-State Control  
•
•
•
•
•
Open-drain active low interrupt output  
Active-low reset input  
The XRA1202/1202P are enhanced versions of the  
PCA9538. The XRA1202 is pin and software  
compatible with the PCA9538 (note: software  
registers are compatible to the PCA9538, but the I2C  
slave address is different).  
Pin and software compatible with PCA9538  
3kV HBM ESD protection per JESD22-A114F  
200mA latch-up performance per JESD78B  
The XRA1202 is available in 16-pin QFN and 16-pin  
TSSOP packages. The XRA1202P is available in the  
16-pin QFN package.  
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  
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XRA1202IL16TR-F 替代型号

型号 品牌 替代类型 描述 数据表
XRA1202IG16-F EXAR

完全替代

 8-BIT I2C/SMBUS GPIO EXPANDER WITH RESET
XRA1202IL16-F EXAR

功能相似

 8-BIT I2C/SMBUS GPIO EXPANDER WITH RESET

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