CAT93C56YGI-T3

Memory IC Overview

The CAT93C56YI-GT3 is a 2-kbit Microwire serial CMOS EEPROM manufactured by onsemi. It offers memory organization of either 256 x 8 or 128 x 16 bits, selectable via the ORG pin. The device supports a maximum clock frequency of 2 MHz and operates within a supply voltage range of 1.8 V to 5.5 V. It features sequential read capabilities, software write protection, and power-up inadvertent write protection. The component is housed in an 8-pin TSSOP package and ensures data retention for 100 years with 1 million program/erase cycles.

Memory IC Feature Summary

• Microwire serial interface supporting high-speed operation up to 2 MHz
• Configurable memory organization for 8-bit or 16-bit word access
• Integrated power-on reset circuitry to prevent incorrect state initialization
• Software and hardware-based write protection mechanisms

Memory IC Applications

• Non-volatile data storage in industrial control systems
• Configuration parameter storage in embedded controllers
• Calibration data retention in sensor interfaces
• Device identification and security code storage

Memory IC Procurement Notes

Verify the exact suffix 'YI' against official onsemi documentation to confirm package type and temperature grade. Confirm RoHS compliance status through current datasheets as manufacturing processes may evolve. Check for end-of-life notices or obsolescence alerts prior to procurement planning. Ensure compatibility with existing PCB footprints for the TSSOP-8 package.

Memory IC Selection Notes

Select this component when a low-pin-count serial EEPROM is required for space-constrained designs. The wide supply voltage range allows direct interfacing with various logic levels without level shifters. Consider the 2 MHz speed for applications requiring faster configuration updates compared to standard I2C alternatives. Verify that the Microwire protocol is supported by the host microcontroller.

Memory IC Part Context

This part belongs to the CAT93C56 family of 2-Kb Microwire Serial CMOS EEPROMs from onsemi. The family provides non-volatile memory solutions for applications needing reliable data retention. Variants within the series differ primarily in package options and operating temperature ranges while maintaining core electrical specifications.

Memory IC Replacement Considerations

Direct substitutes include other 2K-bit Microwire EEPROMs from manufacturers such as Microchip (e.g., 24LC02B variants if protocol compatible) or STMicroelectronics. Verify pinout compatibility and voltage thresholds before substitution.