CAT1641WI-30-GT3

Supervisors Overview

The CAT1641WI-30-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It integrates a 64 kbit serial EEPROM memory with I2C interface capabilities. The device operates within a supply voltage range of 3 V to 5.5 V and features a minimum reset threshold voltage of 3 V. It utilizes an open-drain output type and supports manual reset functionality. The component is housed in an 8-SOIC package (150 mils) and is supplied in a reel format with a quantity of 3000 units. It functions reliably across an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates 64 kbit serial EEPROM memory with I2C communication interface
• Provides voltage supervision with manual reset capability
• Features open-drain output configuration for flexible system integration

Supervisors Applications

• CPU power supply monitoring systems
• Embedded controller reset circuits
• Data storage backup systems requiring non-volatile memory

Supervisors Procurement Notes

Verify the specific suffix 'GT3' indicates tape-and-reel packaging when sourcing components. Confirm the manufacturer is onsemi and check RoHS compliance status through official datasheets or authorized distributor documentation. Ensure the part number matches the exact electrical specifications required for your design, particularly the 3V threshold and SOIC-8 package dimensions.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and non-volatile memory solution is required for space-constrained designs. The I2C interface allows for efficient data logging without additional GPIO pins. Consider the 3V threshold and 5.5V maximum rating to ensure compatibility with the target system's power rail. The SOIC-8 package offers a compact footprint suitable for surface-mount assembly processes.

Supervisors Part Context

This part belongs to the CAT1641 series of supervisory circuits from onsemi. The series typically combines voltage monitoring with varying amounts of EEPROM memory. The 'W' suffix denotes the SOIC-8 package, while '30' specifies the 3.0V threshold voltage. The 'GT3' suffix indicates the reel packaging option, distinguishing it from tube-packaged variants like the '-G' suffix parts.

Supervisors Replacement Considerations

Direct replacements include other CAT1641 variants with matching 3V thresholds and 64K EEPROM, such as CAT1641WI-30-G. Verify pinout compatibility and I2C address configurations before substitution. Cross-reference with similar onsemi supervisor-memory ICs if package or memory size differences are acceptable.