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.