PCA9535ECDTR2G

I/o Expanders Overview

The PCA9535ECDTR2G is a 16-bit I/O expander manufactured by onsemi, designed for I2C and SMBus interfaces. It operates within a supply voltage range of 1.65 V to 5.5 V and supports a maximum clock frequency of 1 MHz. The device features interrupt output capabilities and includes ESD protection rated at 3 kV. It is housed in a TSSOP-24 package suitable for surface mount installation. The component draws a typical operating current of 100 uA and provides an output current capability of 50 mA per pin. It functions across an extended temperature range from -55 C to +125 C with a power dissipation limit of 600 mW.

I/o Expanders Feature Summary

• Supports high-speed I2C and SMBus communication with interrupt output functionality
• Wide operating voltage range compatible with low-power systems
• Enhanced ESD protection for robust signal integrity

I/o Expanders Applications

• Embedded systems requiring expanded GPIO capabilities
• Industrial control interfaces
• Consumer electronics with limited microcontroller pins

I/o Expanders Procurement Notes

Verify the specific manufacturer designation as this part number is associated with onsemi, while the base model may appear under other vendors. Confirm the RoHS status and lead time requirements directly with authorized distributors. Ensure the TSSOP-24 package matches your PCB footprint design constraints before ordering.

I/o Expanders Selection Notes

Select this component when a wide industrial temperature range and low voltage operation are required. Compare against Texas Instruments equivalents if higher speed or different packaging is needed. Verify that the 1 MHz clock rate meets your system bus timing requirements.

I/o Expanders Part Context

This component belongs to the PCA9535E series of I/O expanders. It shares architectural similarities with other 16-bit expanders but distinguishes itself through its specific voltage range and onsemi manufacturing specifications. It serves as a peripheral interface solution for microcontrollers.

I/o Expanders Replacement Considerations

The PCA9535RGER from Texas Instruments offers similar functionality but differs in voltage range (2.3 V minimum) and package type (VQFN). Software adjustments may be necessary due to potential differences in configuration registers or interrupt handling logic between manufacturers.