CAT1640YI-30

Supervisors Overview

The CAT1640YI-30 is a voltage supervisory circuit manufactured by onsemi, featuring an integrated 64K I2C serial EEPROM. It operates within a supply voltage range of 3 V to 5.5 V, with specific under-voltage and over-voltage thresholds set at 3 V and 3.15 V respectively. The device provides a manual reset function with a fixed reset delay time of 270 ms. It draws a typical operating supply current of 3 mA and supports power dissipation up to 1 W. The component is available in an SOIC-8 surface-mount package and is designed for industrial temperature ranges from -40°C to +85°C.

Supervisors Feature Summary

• Integrates 64K non-volatile memory accessible via I2C serial interface
• Provides active low open-drain output for system supervision
• Supports manual reset functionality with defined delay timing

Supervisors Applications

• CPU monitoring systems requiring integrated data storage
• Industrial control units needing voltage supervision
• IoT devices utilizing I2C communication protocols

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels due to potential availability constraints. Confirm RoHS compliance status and check for end-of-life notices before procurement. Ensure packaging specifications match design requirements. Validate electrical parameters against latest datasheet revisions to guarantee compatibility with existing system architectures.

Supervisors Selection Notes

Select this component when simultaneous voltage supervision and persistent data logging are required in a single package. The I2C interface simplifies PCB routing compared to parallel memory solutions. Consider the SOIC-8 footprint for space-constrained designs. Evaluate the 3 mA current consumption against battery life requirements if applicable. Verify that the 270 ms reset delay aligns with system startup timing needs.

Supervisors Part Context

This part belongs to the CAT1640 series of supervisory circuits which combine power management functions with embedded memory. The series targets applications where system state retention during power events is critical. The 'YI' suffix typically denotes specific package and temperature grade variations within the product line. This integration reduces bill-of-materials count by combining two distinct functional blocks.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official replacement guides or contact manufacturer support directly for validated alternatives.