CAT93C46BYI-G

Memory IC Overview

The CAT93C46BYI-G is a 1 kbit Microwire serial EEPROM manufactured by onsemi, housed in an 8-pin TSSOP package. It supports a supply voltage range of 1.8 V to 5.5 V and operates at clock frequencies up to 4 MHz. The memory organization is selectable between 128 x 8 bits and 64 x 16 bits via the ORG pin. Key electrical specifications include a maximum active read current of 500 uA and a standby current of 2 uA. The device ensures data retention for 100 years and withstands -40 °C to +85 °C operating temperatures.

Memory IC Feature Summary

• Supports high-speed serial communication with a maximum clock frequency of 4 MHz.
• Features self-timed internal write cycles with auto-clear functionality.
• Includes on-chip power-on reset circuitry to prevent incorrect logic states during startup.
• Offers software-based write protection to safeguard stored data.

Memory IC Applications

• Non-volatile data storage in industrial control systems
• Configuration parameter storage in embedded microprocessor designs
• Calibration data retention in low-power sensor modules

Memory IC Procurement Notes

Verify the specific suffix 'Y' corresponds to the TSSOP-8 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets. Ensure the ordering part number matches the required voltage and speed grades. Cross-reference the manufacturer's latest product change notification for any packaging or specification updates prior to procurement.

Memory IC Selection Notes

Select this component for applications requiring small footprint memory with Microwire interface compatibility. The TSSOP-8 package suits space-constrained surface-mount designs. Verify that the system voltage falls within the 1.8 V to 5.5 V range. Consider the 4 MHz clock speed if higher throughput is needed compared to standard 1 MHz variants. Ensure the ORG pin configuration aligns with the required memory word size.

Memory IC Part Context

This device belongs to the CAT93C46B series of 1 Kbit serial EEPROMs from onsemi. It shares functional similarities with other members like the CAT93C46WI-GT3 but differs in package type. The series is designed for general-purpose non-volatile memory needs in consumer and industrial electronics, offering reliability and low power consumption.

Memory IC Replacement Considerations

Direct replacements include CAT93C46BYI-GT3. Verify pinout and electrical characteristics against CAT93C46VI-G or CAT93C46RLI-G if package changes are acceptable.