CAT25040HU4I-GT3

Product Overview

The CAT25040HU4I-GT3 from onsemi is a surface-mount EEPROM memory IC organized as 512 x 8 for a total capacity of 4Kbit. It uses a 10 MHz SPI interface and operates over a supply range of 1.8V to 5.5V, for systems that need small, nonvolatile data retention in a compact 8-UFDFN exposed-pad package (8-UDFN-EP, 2x3).

Key Features

• 4Kbit EEPROM memory with a 512 x 8 organization
• SPI serial interface with 10 MHz operation
• Nonvolatile EEPROM memory type
• 1.8V to 5.5V supply voltage range
• -40°C to 85°C (TA) operating temperature range
• 5ms write cycle time for word and page operations
• Surface-mount 8-UFDFN exposed-pad package (8-UDFN-EP, 2x3)

Applications

• Nonvolatile storage of device configuration settings in embedded controllers
• Retention of calibration constants or measurement parameters in instrumented equipment
• Storage of serial numbers or device identifiers in networked equipment

Design & Procurement Notes

For system design, the 4Kbit capacity and 512 x 8 organization define the addressable data space, while the 5ms write cycle time should be considered in firmware timing and write operations. The 1.8V to 5.5V supply range supports systems powered within that range, and the 10 MHz SPI interface supports direct connection to SPI-capable host controllers. Layout planning should account for the 8-UDFN-EP (2x3) exposed-pad surface-mount footprint. Because the device is nonvolatile, it can retain stored data across power cycles, which is useful for settings that must survive shutdown.