NM93CS46EN

Memory IC Overview

The NM93CS46EN is a 1-kbit Microwire serial EEPROM manufactured by onsemi. It features an 8-pin DIP package and supports a maximum clock frequency of 1 MHz. The device operates within a supply voltage range of 2.5 V to 5.5 V. Data retention is specified at 100 years, with a minimum endurance of 1 million write cycles. The memory organization is configured as 128 x 8 bits.

Memory IC Feature Summary

• Supports Microwire 3-wire serial interface for compact system design
• Provides high data retention reliability over extended operational periods
• Operates across standard industrial voltage levels without external level shifting

Memory IC Applications

• Industrial control systems requiring non-volatile parameter storage
• Consumer electronics needing configuration data preservation
• Automotive modules utilizing AEC-Q100 qualified components

Memory IC Procurement Notes

Verify the specific suffix EN corresponds to the 8-pin DIP package variant when sourcing. Confirm the manufacturer origin, as historical listings may reference AMI Semiconductor due to corporate acquisitions. Ensure the requested quantity matches the available distribution channels, as availability fluctuates based on production cycles and regional stock levels.

Memory IC Selection Notes

Select this component when a through-hole DIP package is required for legacy board designs or prototyping. Compare against the CAT93C46B series if surface mount solutions or higher clock speeds are necessary. Verify that the 1 MHz interface speed meets the system timing requirements, as newer variants may offer faster performance.

Memory IC Part Context

This part belongs to the NM93C family of serial EEPROMs from onsemi. It serves as a direct replacement for older AMI Semiconductor parts following industry consolidation. The device provides a cost-effective solution for small-scale data storage in applications where space constraints favor integrated circuits over discrete memory chips.

Memory IC Replacement Considerations

The CAT93C46BVI-GT3 offers similar functionality but utilizes a surface-mount SOIC-8 package instead of DIP. Designers must account for footprint differences during substitution. Verify pin compatibility and voltage specifications before integrating alternative packages into existing hardware layouts.