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NM93C56EN from NS,National Semiconductor

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NM93C56EN

Manufacturer: NS, NSC

Electrically Erasable Programmable Memories

Partnumber Manufacturer Quantity Availability
NM93C56EN NS, NSC 61 In Stock

Description and Introduction

Electrically Erasable Programmable Memories # Introduction to the NM93C56EN Electronic Component  

The **NM93C56EN** is a serial Electrically Erasable Programmable Read-Only Memory (EEPROM) integrated circuit designed for non-volatile data storage in electronic systems. With a capacity of **2K bits (256 x 8 or 128 x 16)**, it provides reliable and flexible storage for configuration settings, calibration data, and other critical parameters in embedded applications.  

This EEPROM operates over a wide voltage range, typically **1.8V to 5.5V**, making it suitable for both low-power and standard-voltage systems. It features a **3-wire serial interface (Microwire-compatible)**, ensuring straightforward integration with microcontrollers and other digital logic circuits. The NM93C56EN supports **byte and word-level read/write operations**, along with a built-in **write protection** feature to prevent accidental data corruption.  

Key characteristics include **high endurance (1 million write cycles)** and **data retention of up to 100 years**, ensuring long-term reliability. Its compact **8-pin package (SOIC, DIP, etc.)** allows for space-efficient PCB designs.  

Common applications include **automotive electronics, industrial control systems, consumer electronics, and IoT devices**, where small-scale, persistent memory is essential. The NM93C56EN balances performance, durability, and ease of use, making it a practical choice for engineers requiring dependable non-volatile storage.

Application Scenarios & Design Considerations

Electrically Erasable Programmable Memories

Alternative Part Number

  • M93C56-WMN6TP --: Pin-compatible 2Kbit Microwire serial EEPROM with the same 93C56 organization and similar voltage range, widely available from ST.
  • CAT93C56VI-GT3 --: Direct functional equivalent 2Kbit Microwire EEPROM in SOIC-8, commonly used as a drop-in replacement for 93C56 devices.
  • BR93L56RF-WE2 --: Rohm 2Kbit Microwire serial EEPROM with compatible command set and pinout, suitable alternative when the original NS part is unavailable.
  • 93LC56B-I/P --: Same 2Kbit Microwire serial EEPROM with 128x16 organization; widely available and pin-compatible replacement for the NM93C56EN.
  • AT93C56B-PU --: 2Kbit 3-wire serial EEPROM with equivalent 128x16 organization and similar command set, suitable drop-in alternative.

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