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XRA1402IL16TR-F PDF预览

XRA1402IL16TR-F

更新时间： 2024-11-19 00:53:35
品牌 Logo 应用领域
艾科嘉 - EXAR /
页数 文件大小 规格书
14页 409K
描述
8-BIT SPI GPIO EXPANDER

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XRA1402IL16TR-F 数据手册

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XRA1402  
8-BIT SPI GPIO EXPANDER  
SEPTEMBER 2011  
REV. 1.0.0  
FEATURES  
GENERAL DESCRIPTION  
• 1.65V to 3.6V operating voltage  
• 8 General Purpose I/Os (GPIOs)  
• 5V tolerant inputs  
The XRA1402 is an 8-bit GPIO expander with an SPI  
interface. After power-up, the XRA1402 has internal  
100K ohm pull-up resistors on each I/O pin that can  
be individually enabled.  
• Maximum stand-by current of 1uA at +1.8V  
• SPI bus interface  
In addition, the GPIOs on the XRA1402 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.  
■ SPI Clock Frequency up to 26MHz  
• 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  
The XRA1402 is available in 16-pin QFN and 16-pin  
TSSOP packages.  
• Open-drain active low interrupt output  
• Active-low reset input  
• 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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XRA1402IL16TR-F 替代型号

型号 品牌 替代类型 描述 数据表
XRA1402IG16TR-F EXAR

完全替代

 8-BIT SPI GPIO EXPANDER
XRA1402IG16-F EXAR

完全替代

 8-BIT SPI GPIO EXPANDER

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