HTR3355,HTR3335,HTR3339 具有中断功能的16位I²C和SMBus IO扩展器(HTR3355,HTR3335,HTR3339 16-bit I²C-bus and SMBus IO expander with Interrupt )
●通电后，16个IO端口配置默认为输入，并可通过I²C进行相关配置，如输入或输出选择、反极性等配置
●所有配置为输入的IO端口都会持续监控状态变化，IO口的变化由INTN输出指示。当IO状态通过I²C接口被读取时，INTN输出被清除。
●HTR3339具有RSTN引脚，其拉低时所有寄存器恢复到默认状态。HTR3335和HTR3339的IO内部没有上拉电阻，因此当其配置为输入且未使用时，需要外部的上下拉。
●HTR3339具 有4个器件地 址 ，HTR3355和HTR3335则有8个。
●HTR33xx提供QFN4×4-24L封装。
●HTR33xx is a 16-bit I²C-bus and SMBus IO expander with 2.2V~5.5V power supply.Any of the 16 IOs can be configured as an input or an output independently.Meanwhile,any IO are capable of driving LEDs directly.
●At power on,the IOs are configured as inputs by default.Configurations are set through I²C interface, such as input or output selection,Polarity Inversion, and so on.
●When the IOs are configured as inputs,they are continuously monitored for state changes.State changes are indicated at the INTN output.Once the IO state are read through the I²C interface,the INTN output is cleared.HTR3339 has RSTN pin to set the registers to their default values.
●HTR3335 and HTR3339 don't include internal IO pullup resistor,so that they require external pull-ups and pull-downs on unused IOs when they are configured as inputs.
●HTR3339 has 4 programmable device addresses,while HTR3355 and HTR3335 have 8.
●HTR33xx is available in QFN4×4-24L package.
●供电范围：2.2V~5.5V
●支持LED驱动
●16个IO, 可任意置为独立的输入或输出
●中断功能，低电平有效
●标准I2C接口，8个I2C器件地址可选(HTR3339为4个)
●支持反极性配置 ・支持低功耗待机
●QFN4×4-24L，无铅封装
●Power supply range:2.5V~5.5V
●Capable of Directly Driving LEDs
●16 IOs can be configured as an input or an output independently
●Support interrupt,active low
●Standard I2C interface,8 programmable device addresses (4 for HTR3339)
●Support Inverse Polarity Configuration
●Low Standby-Current Consumption
●Pb-free Packages,QFN4×4-24L
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HTR3355 、 HTR3335 、 HTR3339 、 HTR3355SQER 、 HTR3335SQER 、 HTR3339SQER |
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IO Expander 、 I²C 、 SMBus IO扩展器 、 16-bit I2C-bus 、 SMBus IO expander |
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[ I2C总线控制的GPIO扩展应用 ][ GPIO expansion for I2C-bus applications ] |
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Datasheet |
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Please see the document for details |
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QFN4×4-24L |
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English Chinese Chinese and English Japanese |
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2/2022 |
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V0.1 |
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790 KB |
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