93C46CT-I/MS

Memory IC Overview

The Microchip Technology 93C46CT-I/MS is a 1-kbit Microwire serial EEPROM housed in an 8-MSOP surface-mount package. It features a 3-wire interface with a maximum clock frequency of 3 MHz and an access time of 200 ns. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports memory organizations of 128 x 8 or 64 x 16 bits. It is rated for industrial temperatures from -40°C to +85°C, offers 200-year data retention, and includes write protection capabilities.

Memory IC Feature Summary

• Supports Microwire 3-wire serial communication protocol
• Provides hardware write protection via dedicated pin
• Delivers high-speed serial access with 200 ns latency
• Ensures long-term non-volatile data storage

Memory IC Applications

• Industrial control system parameter storage
• Consumer appliance configuration memory
• Automotive sensor calibration data logging
• Embedded controller backup memory

Memory IC Procurement Notes

Verify the specific suffix 'I/MS' confirms the industrial temperature grade (-40°C to +85°C) and MSOP-8 package variant. Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure design compatibility with the 3-wire Microwire interface timing requirements. Validate that the 2.5 V to 5.5 V operating voltage aligns with the target system power rails.

Memory IC Selection Notes

Select this component when a compact surface-mount EEPROM with Microwire interface is required. It serves as a suitable alternative to parallel EEPROMs where pin count reduction is critical. Consider the 3 MHz clock speed for applications needing faster serial data transfer than standard SPI devices. Verify that the 1 kbit capacity meets the specific data storage needs without excessive overhead.

Memory IC Part Context

This part belongs to the 93(AA,LC,C)46x series of serial EEPROMs from Microchip Technology. The series provides various density options and package styles for embedded memory applications. The 'C' designation typically indicates specific organizational flexibility within the family. The 'T' suffix denotes tape and reel packaging for automated assembly processes.

Memory IC Replacement Considerations

Direct substitutes include other 93C46 variants with compatible interfaces, such as 93C46A or 93C46B, provided voltage and speed specifications match. Cross-reference package-specific equivalents like 93C46CT-I/MC for DFN packages if footprint changes are permissible.