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NM93C46LN from NS,National Semiconductor

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NM93C46LN

Manufacturer: NS, NSC

256-/1024-/2048-/4096-Bit Serial EEPROM with Extended Voltage (2.7V to 5.5V) (MICROWIRE Bus Interface)

Partnumber Manufacturer Quantity Availability
NM93C46LN NS, NSC 740 In Stock

Description and Introduction

256-/1024-/2048-/4096-Bit Serial EEPROM with Extended Voltage (2.7V to 5.5V) (MICROWIRE Bus Interface) # Introduction to the NM93C46LN Electronic Component  

The NM93C46LN is a serial Electrically Erasable Programmable Read-Only Memory (EEPROM) designed for non-volatile data storage in a wide range of electronic applications. With a capacity of 1K-bit (128 x 8 or 64 x 16 organization), it provides reliable and efficient storage for configuration settings, calibration data, and other critical parameters that must persist even when power is removed.  

This component features a simple 3-wire serial interface (Microwire-compatible), making it easy to integrate into microcontroller-based systems. It supports both sequential and random read operations, as well as byte or word-level write and erase functions. The NM93C46LN operates over a wide voltage range (typically 2.5V to 5.5V), ensuring compatibility with various power supply conditions.  

Key characteristics include low power consumption, high endurance (up to 1 million write cycles), and extended data retention (over 100 years). Its compact package (typically an 8-pin DIP or SOIC) makes it suitable for space-constrained designs.  

Common applications include automotive electronics, industrial control systems, consumer electronics, and embedded devices where small-scale, reliable non-volatile memory is essential. The NM93C46LN offers a cost-effective solution for applications requiring persistent data storage with minimal interface complexity.

Application Scenarios & Design Considerations

256-/1024-/2048-/4096-Bit Serial EEPROM with Extended Voltage (2.7V to 5.5V) (MICROWIRE Bus Interface)

Alternative Part Number

  • 93C46-E/P --: Pin-compatible 1Kbit serial EEPROM in DIP-8 with similar organization and interface; widely available and well documented.
  • AT93C46D-PU --: 1Kbit 3-wire serial EEPROM in DIP-8, functionally equivalent to the NM93C46 with compatible command set and timing.
  • CAT93C46LI-G --: 1Kbit Microwire serial EEPROM in DIP-8, drop-in functional replacement with comparable voltage range and pinout.
  • M93C46-WMN6TP --: 1Kbit serial EEPROM with the same 93C46 command set and pinout, suitable as a cross-manufacturer drop-in alternative.

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