Details

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BUY TCA9535PWR https://www.utsource.net/itm/p/5251946.html
LOW VOLTAGE 16-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

Parameter	Description	Value/Range	Unit
Supply Voltage (VDD)	Operating supply voltage range	1.65 to 5.5	V
I/O Voltage	Input/output voltage	VIL: -0.3 to VDD-0.8, VIH: VDD+0.3 to 5.5	V
Output Current	Maximum output current per pin	±20	mA
Operating Temperature	Recommended operating temperature range	-40 to +85	°C
Storage Temperature	Storage temperature range	-65 to +150	°C
Data Rate	Maximum data rate	400	kHz
Package	Package type	TSSOP

Instructions for Use:

1. Power Supply Connection: Connect the VDD pin to a power supply within the specified voltage range (1.65V to 5.5V) and GND pin to ground.

2. I2C Bus Configuration: Ensure that the SDA (data) and SCL (clock) lines are connected to the I2C bus with appropriate pull-up resistors typically in the range of 4.7kΩ to 10kΩ depending on bus length and speed.

3. Address Setting: The device address is set by connecting the A0, A1, and A2 pins to either VDD or GND. Refer to the datasheet for the binary combination corresponding to each address setting.

4. Port Configuration: The TCA9535PWR has two 8-bit configurable ports (Port 0 and Port 1). Configure these ports as inputs or outputs using the configuration register commands via the I2C interface.

5. Reading/Writing Data: To read from or write to the I/O ports, use the appropriate I2C command sequences as detailed in the datasheet. Writing involves sending the port address followed by the data byte. Reading involves sending the port address and then reading back the data byte.

6. Interrupt Handling: If using the interrupt feature, connect the INT pin to your microcontroller's interrupt input. Configure the polarity and enable the interrupt as needed.

7. Handling Electrostatic Discharge (ESD): Take necessary precautions to prevent ESD damage when handling the component. Use proper grounding and anti-static equipment.

8. Storage and Handling: Store in a dry environment within the specified storage temperature range to avoid damage. Handle with care to prevent mechanical damage to the package and leads.

(For reference only)