CAT25040VI-GT3

Product Overview

The CAT25040VI-GT3 is an onsemi EEPROM memory integrated circuit that provides 4Kbit of non-volatile storage in an 8-SOIC surface-mount package. The device is organized as 512 x 8 bits and communicates through an SPI interface. It operates from a supply range of 1.8V to 5.5V and has an ambient temperature range of -40°C to 85°C. The 5ms word or page write cycle supports firmware and application routines that need to store small amounts of configuration, calibration, or identification data across power cycles.

Key Features

• 4Kbit EEPROM memory with a 512 x 8 organization
• Non-volatile EEPROM storage format
• SPI memory interface
• Word or page write cycle time of 5ms
• Supply voltage range of 1.8V to 5.5V
• Operating temperature range of -40°C to 85°C (TA)
• Surface-mount 8-SOIC package with 0.154 in (3.90 mm) width

Applications

• Configuration storage for embedded controllers that must retain settings after power removal.
• Calibration constant retention for measurement or control equipment.
• Persistent identification data for serial numbers or asset tags.
• Small lookup tables or operational thresholds in firmware-controlled systems.

Design & Procurement Notes

When integrating the CAT25040VI-GT3, verify that the host controller supports SPI timing and that the system supply is within the 1.8V to 5.5V range. The 5ms word or page write cycle should be considered in firmware that performs frequent updates, as write operations may require polling or delay handling. The 512 x 8 organization should be reflected in firmware address calculations, and data structures must fit within the 4Kbit capacity. The surface-mount 8-SOIC package requires an SMT assembly flow, and the ambient temperature range should be checked against the enclosure or PCB thermal environment.