Details

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BUY TCA9555PWR TSSOP https://www.utsource.net/itm/p/12610707.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD	Operating Range	1.65	-	5.5	V
Input Leakage Current	IIH	VDD = 3.3V, VI = VDD	-	1	-	渭A
Input Leakage Current	IIL	VDD = 3.3V, VI = 0V	-	1	-	渭A
Output Source Current	IOH	VOH = VDD - 0.4V	1	-	8	mA
Output Sink Current	IOL	VOL = 0.4V	2	-	16	mA
Input Low to High Threshold	VIH	ICC = 1渭A	0.7	-	0.9	V
Input High to Low Threshold	VIL	ICC = -1渭A	0.2	-	0.4	V
Propagation Delay Time	tPLH	VI = 0V to VO = VDD/2	0.2	-	6	渭s
Propagation Delay Time	tPHL	VI = VDD to VO = VDD/2	0.2	-	6	渭s

Instructions for TCA9555PWR TSSOP

1. Power Supply Connection:

   • Connect the supply voltage (VDD) within the operating range of 1.65V to 5.5V.
   • Ensure a stable power supply to avoid malfunction.

2. Input Handling:

   • Inputs should be kept within the specified voltage thresholds to prevent damage.
   • Use pull-up or pull-down resistors as necessary to ensure stable logic levels.

3. Output Handling:

   • Do not exceed the maximum output source and sink current ratings.
   • External components connected to the outputs should have appropriate current limiting resistors if needed.

4. Signal Timing:

   • Account for propagation delays in your design to ensure reliable signal transmission.
   • Verify that the timing parameters meet the requirements of the system.

5. Environmental Considerations:

   • Store and operate the device within recommended temperature and humidity ranges.
   • Protect against electrostatic discharge (ESD) during handling.

6. PCB Layout:

   • Place decoupling capacitors close to the power pins to reduce noise.
   • Follow best practices for PCB layout to minimize interference and improve performance.

(For reference only)