CAT25640HU3IGT3E

Product Overview

The CAT25640HU3IGT3E from onsemi is a non-volatile EEPROM memory IC that provides 64 Kbit of storage organized as 8K x 8. It communicates through an SPI memory interface with a specified clock frequency of 10 MHz. The device operates from a supply voltage range of 1.8 V to 5.5 V and is intended for surface-mount assembly in an 8-UFDFN exposed-pad package, with an 8-UDFN 2x3 package designation. Its specified operating temperature range is -40°C to 85°C (TA), supporting compact embedded hardware that needs small configuration or calibration data storage.

Key Features

• 64 Kbit non-volatile EEPROM memory with an 8K x 8 organization.
• SPI memory interface specified for a 10 MHz clock frequency.
• Supply voltage range of 1.8 V to 5.5 V.
• 5 ms word/page write cycle time.
• Surface-mount 8-UFDFN exposed-pad package with 8-UDFN 2x3 package designation.
• Operating temperature range of -40°C to 85°C (TA).

Applications

• Embedded control boards storing user settings and configuration data.
• Instrumentation modules retaining calibration values or operating parameters.
• Compact sensor interfaces requiring small non-volatile data storage.
• Host systems using SPI-connected memory for parameter tables or identifiers.

Design & Procurement Notes

For design planning, match the host microcontroller or SPI master to the specified 10 MHz clock frequency and verify that the chosen supply voltage remains within 1.8 V to 5.5 V under system conditions. The 8K x 8 organization and 5 ms word/page write cycle time should be considered when allocating buffer space and scheduling write operations, especially in firmware that must wait for write completion before reading updated values. The 8-UFDFN exposed-pad package requires a compatible surface-mount footprint and pad layout for the 8-UDFN 2x3 package designation. The -40°C to 85°C (TA) operating range should be checked against the final assembly environment before selection.