Details

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BUY PCF8576CT https://www.utsource.net/itm/p/12612394.html

Parameter	Symbol	Min	Typical	Max	Unit	Description
Supply Voltage	VCC	2.0	-	6.0	V	Operating voltage range
Operating Temperature	TOP	-40	-	85	掳C	Temperature range for normal operation
Storage Temperature	TSTG	-65	-	150	掳C	Temperature range for storage
I2C Bus Speed	fSCL	-	100	400	kHz	Maximum clock frequency of the I2C bus
Input Current (High)	IINH	-	0.01	0.4	mA	Input current when the input is high
Input Current (Low)	IINL	-	0.01	0.4	mA	Input current when the input is low
Output Current (High)	IOH	-	0.4	3.2	mA	Output current when the output is high
Output Current (Low)	IOL	10	15	20	mA	Output current when the output is low
Quiescent Current	IQ	0.1	0.5	1.0	mA	Current consumption in quiescent state
Leakage Current	ILK	-	0.01	0.1	渭A	Leakage current at the output pins
Propagation Delay Time	tpd	100	200	300	ns	Time delay from input to output
Setup Time	tsu	200	300	400	ns	Minimum time before the clock edge that the data must be stable
Hold Time	th	50	100	150	ns	Minimum time after the clock edge that the data must be stable
I2C Address	A0-A2	-	-	-	-	Address selection pins (0 to 7)

Instructions for Using the PCF8576CT

1. Power Supply:

   • Connect the V_CC pin to a power supply within the range of 2.0V to 6.0V.
   • Ensure the GND pin is connected to the ground.

2. I²C Bus Connection:

   • Connect the SDA (Serial Data) and SCL (Serial Clock) pins to the I²C bus.
   • Use pull-up resistors on both SDA and SCL lines to V_CC. Typical values are 4.7k惟 to 10k惟.

3. Address Configuration:

   • The device address can be configured using the A₀, A₁, and A₂ pins. These pins can be tied to either V_CC or GND to set the address.
   • The default address is 0x38 (binary 0111000) if all address pins are grounded.

4. Communication Protocol:

   • The PCF8576CT follows the standard I²C protocol.
   • Start by sending the device address followed by a write command (0 for writing, 1 for reading).
   • For writing, send the data byte(s) after the address.
   • For reading, send the device address followed by a read command, then read the data byte(s).

5. Timing Considerations:

   • Ensure the setup and hold times for data are respected to avoid communication errors.
   • The propagation delay time should be considered when designing the system timing.

6. Output Configuration:

   • The output pins can source or sink current as specified in the table.
   • Ensure the load connected to the output pins does not exceed the maximum current ratings.

7. Operating Temperature:

   • The device is designed to operate within the temperature range of -40掳C to 85掳C.
   • Store the device within the storage temperature range of -65掳C to 150掳C.

8. Quiescent Current:

   • The device consumes a quiescent current of up to 1.0mA, which should be considered in power budgeting.

9. Leakage Current:

   • Be aware of the leakage current at the output pins, which can affect the performance of sensitive circuits.

10. Handling Precautions:

    • Handle the device with care to avoid static damage.
    • Follow proper soldering techniques to ensure reliable connections.

By following these instructions, you can effectively integrate the PCF8576CT into your circuit design.

(For reference only)