TCA9535RTWR

TEXAS INSTRUMENTS  TCA9535RTWR  输入/输出扩展, 16bit, 400 kHz, I2C, SMBus, 1.65 V, 5.5 V, WQFN

The is a 16-bit I²C and SMBus I/O Expander with interrupt output and configurable registers provides 16-bits of general purpose parallel input/output I/O expansion for the two-line bidirectional I²C bus or SMBus protocol. The device can operate with a power supply voltage ranging from 1.65 to 5.5V. I/O expanders, such as the TCA9535, provide general-purpose remote I/O expansion for most microcontroller families via the I²C interface, providing a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans and other similar devices. It consists of two 8-bit configuration input or output selection, input port, output port and polarity inversion active-high or active-low operation registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits.

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Open-drain active-low interrupt INT\ output

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Polarity inversion register

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Address by 3 hardware address pins for use of up to 8 devices

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Latched outputs with high-current drive capability for directly driving LEDs

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Latch-up performance exceeds 100mA per JESD 78, class II

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3µA Maximum low standby-current consumption

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400kHz Fast I²C bus

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Green product and no Sb/Br

Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.