DS1977

DS1977 chip is a secure, battery-backup SRAM with a unique 64-bit serial number and tamper detection features.
5,776 有效庫存

DS1977

有效庫存5,776

DS1977 chip is a secure, battery-backup SRAM with a unique 64-bit serial number and tamper detection features.

  • 製造商零件號 # : DS1977

  • 包裝/封裝: W.SO

  • 製造商: MAXIM

  • 產品分類 : EEPROMs

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DS1977 數據表
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詳細說明

The DS1977 is a high-security, password-protected memory storage device manufactured by Maxim Integrated. It features a unique 64-bit serial number for identification, along with 32KB of EEPROM memory for storing sensitive data. The device offers a flexible user-programmable password protection mechanism to prevent unauthorized access to the stored information.The DS1977 operates using the 1-Wire interface, allowing it to communicate with a host device through a single data line. This interface simplifies integration into a wide range of applications, providing secure, reliable data storage in a compact form factor.In addition to password protection, the DS1977 includes advanced security features such as tamper detection and anti-cloning measures to safeguard the stored data from potential threats. The device is designed for use in applications that require high levels of security, such as medical devices, authentication systems, and secure data logging.

主要特徵

  • 64-bit unique serial number
  • Used for secure authentication
  • 256-bit EEPROM memory
  • High read/write endurance
  • Operating temperature range -40°C to +85°C
  • Low voltage operation: 2.8V to 5.25V
  • 4137 bytes available for user data storage

應用

  • Industrial automation
  • Asset tracking and management
  • Temperature monitoring in cold chain logistics
  • Security access control systems
  • Healthcare monitoring devices
  • Environmental monitoring and control
  • Identification and authentication systems
  • Data logging and timestamping applications
  • Supply chain management
  • Smart agriculture and farming

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 DS1977 PDF 下載

常見問題解答

What is DS1977?

The DS1977 is a unique, high-capacity, low-power iButton® with a built-in 32KB secure memory designed by Maxim Integrated. It is ideal for applications requiring secure data logging, authentication, and tamper detection, such as asset tracking, electronic access control, and secure data storage.

How Does DS1977 Work?

The DS1977 functions as a secure memory device with built-in tamper detection capabilities. It features cryptographic functions, secure data logging, and a unique 64-bit serial number for authentication. The device communicates over a 1-Wire® interface, enabling easy integration into various systems and environments.

How Many Pins does DS1977 have and What are the Functions of the Pinout Configuration?

The DS1977 is housed in a 2-pin TO-92 package. The pinout configuration includes:

  • Pin 1: Data pin for 1-Wire communication.
  • Pin 2: Ground pin for device operation.

What are the Pros and Cons of DS1977?

Pros:

  • Secure Memory: Features built-in cryptographic functions for secure data storage.
  • Tamper Detection: Includes tamper response features for enhanced security.
  • Small Form Factor: Compact TO-92 package for easy integration into various devices.
  • 1-Wire Interface: Simplifies communication and control with a single wire interface.

Cons:

  • Memory Limitation: Limited to 32KB of secure memory capacity.
  • Application Specific: Designed for specialized applications requiring secure data storage and authentication.
  • External Components: May require additional components for complete system integration.

Are There Any Equivalents/Alternatives to DS1977 for Recommendation?

  • The DS28E17 from Maxim Integrated is a similar secure memory device with additional features.
  • Alternatives to the DS1977 include the DS28E80 from Maxim Integrated and the DS24B33 from Maxim Integrated.

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