PCA9670BS,118

I/o Expanders Overview

The PCA9670BS,118 is an 8-bit remote I/O expander for Fast-mode Plus (Fm+) I2C-bus applications. It features quasi-bidirectional ports with a 30 mA SDA sink capability and latched outputs providing 25 mA high current sink drive. The device operates on a supply voltage range of 2.3 V to 5.5 V, with 5.5 V tolerant I/Os. It supports up to 64 programmable slave addresses via three hardware address pins. Typical static standby current consumption is 2.5 µA. The component includes an active LOW reset input and internal Power-On Reset functionality.

I/o Expanders Feature Summary

• Supports 1 MHz Fast-mode Plus I2C-bus interface
• Provides 8-bit remote I/O expansion with independent input/output assignment
• Features software reset and readable device ID capabilities
• Includes active LOW hardware reset pin and internal Power-On Reset

I/o Expanders Applications

• LED signs and displays
• Servers
• Keypads
• Industrial control systems
• Medical equipment

I/o Expanders Procurement Notes

Verify the specific ordering suffix ',118' corresponds to the HVQFN16 package and reel packing method as documented in the official NXP datasheet. Confirm that the manufacturer identification matches NXP Semiconductors or its authorized distribution channels to ensure component authenticity and traceability.

I/o Expanders Selection Notes

Select this component when system design requires expanding I/O capacity over an I2C bus without using bus buffers. The high SDA drive capability allows connecting multiple devices to the same bus. Ensure the operating voltage range aligns with the system power supply and verify that the HVQFN16 package dimensions fit the PCB layout constraints.

I/o Expanders Part Context

This part belongs to the PCA9670 family of remote I/O expanders designed for Fm+ I2C-bus communication. The 'BS' designation indicates the HVQFN16 plastic thermal enhanced very thin quad flat package variant. The ',118' suffix specifies the standard marking and reel packing configuration for surface mount assembly.

I/o Expanders Replacement Considerations

Direct replacements within the same family include PCA9670D and PCA9670PW, which offer identical electrical characteristics but utilize SO16 and TSSOP16 packages respectively. Verify package footprint compatibility before substitution.