Details

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BUY PCA9536DP https://www.utsource.net/itm/p/11250307.html

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VDD)	Operating supply voltage	1.7	-	5.5	V
Output Low Voltage (VOL)	Output low level voltage at IO0-IO3	-0.4	-	0.4	V
Input Low Voltage (VIL)	Input low level voltage at IO0-IO3	-0.5	-	1.2	V
Input High Voltage (VIH)	Input high level voltage at IO0-IO3	2.0	-	5.5	V
Output High Voltage (VOH)	Output high level voltage at IO0-IO3	2.4	-	VDD-0.4	V
Leakage Current (IOL, IOH)	Leakage current at IO0-IO3	-1	-	1	μA
Operating Temperature	Operating temperature range	-40	-	85	°C
Storage Temperature	Storage temperature range	-65	-	150	°C
Maximum Junction Temperature	Maximum junction temperature	-	-	150	°C
Output Drive Current (IOL, IOH)	Output drive current at IO0-IO3	-20	-	20	mA

Instructions for Using PCA9536DP

1. Power Supply:

   • Connect the VDD pin to the appropriate power supply within the range of 1.7V to 5.5V.
   • Ensure that the GND pin is connected to the ground.

2. Pin Configuration:

   • IO0-IO3: These are the input/output pins. They can be configured as inputs or outputs using the configuration registers.
   • A0-A2: Address selection pins. These pins are used to set the I2C address of the device. They can be tied to VDD, GND, or left floating to select different addresses.
   • SCL: Serial clock line for I2C communication.
   • SDA: Serial data line for I2C communication.

3. I2C Communication:

   • The PCA9536DP communicates via the I2C protocol. The default I2C address is determined by the states of A0, A1, and A2.
   • Use the I2C master to send commands to the device to configure the input/output direction, read input states, and control output states.

4. Configuration Registers:

   • Input Port Register (0x00): Reads the status of the input pins.
   • Output Port Register (0x01): Sets the state of the output pins.
   • Polarity Inversion Register (0x02): Inverts the polarity of the input/output pins.
   • Configuration Register (0x03): Configures the direction of the pins (input or output).

5. Example Configuration:

   • To set all pins as outputs:

     Write 0x00 to Configuration Register (0x03)
     

   • To set all pins as inputs:

     Write 0xFF to Configuration Register (0x03)
     

   • To set specific pins as outputs and others as inputs:

     Write the desired configuration byte to Configuration Register (0x03)
     

6. Reading and Writing:

   • To read the status of the input pins:

     Read from Input Port Register (0x00)
     

   • To set the state of the output pins:

     Write the desired state byte to Output Port Register (0x01)
     

7. Polarity Inversion:

   • To invert the polarity of the pins:

     Write the desired inversion byte to Polarity Inversion Register (0x02)
     

8. Handling:

   • Ensure that the device is not exposed to temperatures outside the specified operating and storage ranges.
   • Avoid exceeding the maximum ratings for supply voltage, output drive current, and leakage current.

By following these instructions, you can effectively use the PCA9536DP in your projects.

(For reference only)