CAT25320YI-GT3

Product Overview

The CAT25320YI-GT3 from onsemi is a 32Kbit non-volatile EEPROM memory IC organized as 4K x 8. It uses a serial peripheral interface (SPI) with a clock frequency of 10 MHz and operates from a 1.8V to 5.5V supply. The device is offered in an 8-TSSOP surface-mount package, with a 4.40 mm body width, and operates over a temperature range of -40°C to 85°C (TA). The write cycle time is 5ms for word and page operations. This configuration supports embedded designs that require serially accessible, byte-oriented non-volatile storage.

Key Features

• 32Kbit EEPROM memory with a 4K x 8 organization.
• SPI serial interface supporting a 10 MHz clock frequency.
• 1.8V to 5.5V supply voltage range.
• 5ms word and page write cycle time.
• Operating temperature range of -40°C to 85°C (TA).
• Surface-mount 8-TSSOP package with 4.40 mm width.

Applications

• Embedded systems that retain configuration parameters through power cycling.
• Microcontroller-based modules that store calibration data or measurement offsets.
• Consumer devices that preserve user settings in a serial non-volatile memory.
• Equipment control boards using SPI memory for lookup tables or parameter records.

Design & Procurement Notes

When integrating the CAT25320YI-GT3, confirm that the host controller provides an SPI interface and that the selected clock rate does not exceed 10 MHz. The 1.8V to 5.5V supply range should be matched to the system power architecture, and board-level power sequencing and input compatibility should still be verified against the system design. The 4K x 8 organization supports byte-addressed storage, while the 5ms word and page write cycle time should be included in firmware timing budgets and write-acknowledgment handling. Layout should account for the 8-TSSOP surface-mount footprint and 4.40 mm package width. Thermal margin should be considered for operation within the -40°C to 85°C (TA) range.