AT93C46W-10SI-1.8

Memory IC Overview

The AT93C46W-10SI-1.8 is a 1K-bit serial electrically erasable programmable read-only memory (EEPROM) manufactured by Microchip Technology, formerly Atmel. It operates within a supply voltage range of 1.8V to 5.5V and supports a clock frequency up to 2 MHz at 5V. The device features an 8-lead JEDEC SOIC package and provides user-selectable internal organization of either 128 x 8 or 64 x 16 bits. It utilizes a three-wire serial interface for data access.

Memory IC Feature Summary

• Supports low-voltage operation from 1.8V to 5.5V
• Features a self-timed write cycle with no separate erase requirement
• Provides high reliability with one million write cycle endurance
• Includes user-selectable internal memory organization

Memory IC Applications

• Industrial applications requiring low-power operations
• Commercial applications needing non-volatile storage
• Systems utilizing three-wire serial communication interfaces

Memory IC Procurement Notes

Verify the manufacturer origin as this component was originally produced by Atmel before acquisition by Microchip Technology. Confirm that the specific ordering suffix matches the required voltage range and package type. Ensure compliance with current environmental regulations such as RoHS standards applicable to the production batch.

Memory IC Selection Notes

Select this component when a 1K-bit EEPROM capacity is required in an 8-lead SOIC package. It is suitable for designs operating between 1.8V and 5.5V. Consider the three-wire interface compatibility with the host processor. Verify if the industrial temperature range meets the system requirements.

Memory IC Part Context

This part belongs to the AT93C46/56/66 family of serial EEPROMs. The 'AT93C46' designation indicates a 1K-bit density. The 'W' suffix denotes a rotated pinout option, while '10' specifies the speed grade. The 'SI' indicates the 8-lead JEDEC SOIC package, and '1.8' confirms the low-voltage variant.

Memory IC Replacement Considerations

Direct replacements include other variants within the AT93C46 series such as AT93C46-10SI-1.8 or AT93C46-10SU-1.8. Cross-brand equivalents may be available but require verification of pinout and electrical characteristics against the original datasheet specifications.