PCA9655EDTR2G

I/o Expanders Overview

The PCA9655EDTR2G is a dual-channel I2C-bus and SMBus-compatible bus switch manufactured by onsemi. It operates within a supply voltage range of 1.65 V to 5.5 V and supports data transfer rates up to 400 kHz. The device features low on-resistance and bidirectional signal capability, allowing flexible level translation between different voltage domains. Packaged in a TSSOP-16 format, it includes ESD protection rated at 3 kV HBM. The component is designed for applications requiring efficient signal routing and isolation in mixed-voltage systems.

I/o Expanders Feature Summary

• Dual-channel configuration for independent signal path control
• Bidirectional operation supporting multiple voltage domain translations
• Integrated electrostatic discharge protection for enhanced reliability

I/o Expanders Applications

• Level shifting between different logic families
• Signal routing in multi-drop bus architectures
• Isolation of sensitive circuits from noisy environments

I/o Expanders Procurement Notes

Verify the specific suffix 'EDTR2G' against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary based on production cycles and regional stock levels.

I/o Expanders Selection Notes

Select this component when dual-channel isolation or level translation is required within the 1.65 V to 5.5 V range. Ensure the application does not exceed the maximum clock frequency of 400 kHz. Verify that the TSSOP-16 package dimensions fit the PCB layout constraints and that the ESD protection rating meets the environmental requirements.

I/o Expanders Part Context

This part belongs to the PCA9655 family of bus switches, which are designed for high-speed signal switching and level shifting. It complements other interface ICs by providing isolated pathways for I2C and SMBus signals, ensuring signal integrity across varying voltage levels in complex electronic systems.

I/o Expanders Replacement Considerations

Check for direct pin-to-pin replacements such as the PCA9655E or variants from other manufacturers like NXP Semiconductors. Ensure electrical parameters including on-resistance, capacitance, and operating voltage ranges match the original design requirements before substitution.