Details

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BUY TCA9539QPWRQ1 https://www.utsource.net/itm/p/12612188.html

Parameter	Symbol	Min	Typical	Max	Unit
Supply Voltage	VCC	2.3	-	5.5	V
Operating Temperature	TOPR	-40	-	85	°C
Storage Temperature	TSTG	-65	-	150	°C
Input Leakage Current	IIH, IIL	-	1	10	μA
Output Leakage Current	IOH, IOL	-	1	10	μA
Input Capacitance	CIN	-	10	-	pF
Output Capacitance	COUT	-	10	-	pF
Propagation Delay Time	tPLH, tPHL	-	1.7	4.0	μs (VCC=5V)
High-Level Output Current	IOH	-	-	16	mA
Low-Level Output Current	IOL	-	-	16	mA

Instructions for Using TCA9539QPWRQ1

1. Power Supply:

   • Ensure the supply voltage (VCC) is within the range of 2.3V to 5.5V.
   • Connect the ground (GND) pin to the system ground.

2. Address Configuration:

   • The device has two address pins (A0 and A1) that can be used to set the I2C address. The address can be configured as follows:
     • A0 = 0, A1 = 0: Address = 0x20
     • A0 = 0, A1 = 1: Address = 0x21
     • A0 = 1, A1 = 0: Address = 0x22
     • A0 = 1, A1 = 1: Address = 0x23

3. I2C Communication:

   • Use the SDA (data) and SCL (clock) pins to interface with the I2C bus.
   • The device supports standard I2C speeds up to 400 kHz.

4. Register Configuration:

   • Input Port Registers (0x00 and 0x01):
     • Read the state of the input pins.
   • Output Port Registers (0x02 and 0x03):
     • Set the state of the output pins.
   • Polarity Inversion Registers (0x04 and 0x05):
     • Invert the polarity of the input/output pins.
   • Configuration Registers (0x06 and 0x07):
     • Configure each pin as input or output. Set to 1 for input, 0 for output.

5. Example I2C Commands:

   • Read Input Port 0:
     • Send: 0x20 (address), 0x00 (register)
     • Receive: Data from input port 0
   • Write to Output Port 1:
     • Send: 0x20 (address), 0x03 (register), 0xFF (data)

6. Handling ESD:

   • The device includes ESD protection, but handle it with care to avoid damage.

7. Storage and Handling:

   • Store the device in a dry, cool place.
   • Follow proper handling procedures to prevent static discharge.

8. Package Information:

   • The TCA9539QPWRQ1 is available in a 16-pin TSSOP package.

For detailed specifications and additional information, refer to the datasheet provided by Texas Instruments.

(For reference only)