CAT34C02HU4I-GTK

Product Overview

The CAT34C02HU4I-GTK from onsemi is a 2-Kbit serial memory device with an I2C interface. It is intended for embedded systems that need to store small amounts of configuration, calibration, or device data while minimizing host interface complexity. The part is a memory IC associated with the CAT34C02 designation, and the full manufacturer part number is CAT34C02HU4I-GTK.

Key Features

• 2-Kbit memory capacity for small data sets.
• I2C serial interface for connection to common microcontroller buses.
• Memory IC designation for embedded data storage.
• Manufacturer part number CAT34C02HU4I-GTK.

Applications

• Embedded systems storing small configuration parameters.
• Sensor modules retaining calibration values or device identifiers.
• Control boards using I2C memory for lookup tables or status data.
• Instrumentation electronics storing compact operating profiles.

Design & Procurement Notes

For design use, the 2-Kbit capacity suits small parameter blocks rather than bulk data storage. The I2C interface should be checked against the host controller's bus voltage, address range, and timing requirements before schematic capture, because multiple devices on the same bus can require address planning. Since the part is a serial memory device, board layout should account for signal integrity on the I2C lines, including trace length, pull-up values, and bus loading. Procurement should verify the exact package, pinout, temperature range, and ordering code from the manufacturer documentation, as these details are not part of the basic device designation. This helps avoid mismatches between the selected memory density and the firmware data structure.