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XRA1201PIL24-F

更新时间： 2024-11-19 00:53:35
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艾科嘉 - EXAR /
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17页 493K
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16-BIT I2C/SMBUS GPIO EXPANDER

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XRA1201/1201P  
16-BIT I2C/SMBUS GPIO EXPANDER  
SEPTEMBER 2011  
REV. 1.0.0  
FEATURES  
GENERAL DESCRIPTION  
• 1.65V to 3.6V operating voltage  
• 16 General Purpose I/Os (GPIOs)  
• 5V tolerant inputs  
The XRA1201/1201P is a 16-bit GPIO expander with  
2
an I C/SMBus interface.  
After power-up, the  
XRA1201 has internal 100K ohm pull-up resistors on  
each I/O pin that can be individually enabled. The  
XRA1201P 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  
2
• I C/SMBus bus interface  
2
■ I C clock frequency up to 400kHz  
In addition, the GPIOs on the XRA1201/1201P 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.  
■ Noise filter on SDA and SCL inputs  
2
■ Up to 32 I C 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  
The XRA1201/1201P are enhanced versions of other  
2
16-bit GPIO expanders with an I C/SMBus interface.  
• Pin and software compatible with PCA9535,  
TCA9535, MAX7312 (XRA1201)  
The XRA1201 is pin and software compatible with the  
PCA9535, TCA9535 and MAX7312. The XRA1201P  
is pin and software compatible with the CAT9555,  
PCA9555, TCA9555, MAX7311 and MAX7318.  
• Pin and software compatible with CAT9555,  
PCA9555, TCA9555, MAX7311 and MAX7318  
(XRA1201P)  
The XRA1201/1201P are available in 24-pin QFN  
and 24-pin TSSOP packages.  
• 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  
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XRA1201PIL24-F 替代型号

型号 品牌 替代类型 描述 数据表
XRA1201PIG24TR-F EXAR

完全替代

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XRA1201IL24TR-F EXAR

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