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DS2502S+T&R

Name: DS2502S+T&R
Rating: 4.7 (12 reviews)

IC EPROM 1KBIT 1-WIRE 8SOIC

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Mfr。パート #DS2502S+T&R
パッケージ SOIC-8
データシート
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仕様

Package	Tape & Reel (TR)
ProductStatus	Active
MemoryType	Non-Volatile
MemoryFormat	EPROM
Technology	EPROM - OTP
MemorySize	1Kb (128 x 8)
MemoryInterface	1-Wire®
Voltage-Supply	2.8V ~ 6V
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概要

Description

The DS2502S+T&R is a digital temperature sensor and humidity sensor designed for precise environmental monitoring. It features a digital interface, facilitating easy integration with microcontrollers and other digital systems. The sensor provides real-time data on temperature and humidity, making it ideal for applications in HVAC systems, weather stations, and smart homes.
Key specifications include a wide measurement range, high accuracy, and low power consumption, enabling its use in battery-powered devices. The DS2502S+T&R typically communicates via I2C or SPI protocols, allowing multiple sensors to be connected on a single bus. Its compact form factor ensures versatility in various design applications.
Overall, the DS2502S+T&R is a reliable choice for engineers seeking efficient and accurate environmental sensing solutions in their projects.

Features

The DS2502S+T&R is a 1-Wire® EEPROM from Maxim Integrated (now part of Analog Devices). Key features include:
- Memory Capacity: 2K bits (256 bytes) of EEPROM.
- 1-Wire Interface: Allows communication over a single data line, reducing wiring complexity.
- Low Power Consumption: Operates with low power requirements, making it suitable for battery-powered applications.
- Unique 64-bit Serial Number: Each device has a unique identifier for easy network identification.
- Temperature Range: Operating range from -40°C to +85°C.
- Data Retention: Supports data retention for up to 10 years.
- Write Cycle Endurance: Typically withstands at least 100,000 write cycles per byte.
- Multi-Drop Capability: Can be connected to a single 1-Wire bus, allowing multiple devices to be addressed individually.
This makes the DS2502S+T&R ideal for applications such as inventory control, asset tracking, and system identification in various environments.

Package

The DS2502S+T&R is packaged in a small, 8-pin SOIC (Small Outline Integrated Circuit) format. This surface-mount package is designed for easy integration into electronic circuits while saving space on the PCB.

Pinout

The DS2502S+T&R is a 1-Wire® EEPROM device with a pin count of 8. Its primary functions include:
1. Data Storage: It provides 256 bits (32 bytes) of EEPROM memory, allowing for data storage and retrieval.
2. 1-Wire Interface: The device utilizes a 1-Wire communication protocol, enabling a single data line for communication, which simplifies wiring in multi-device applications.
3. Unique Identifier: Each DS2502S has a unique 64-bit ROM serial number for device identification.
4. Read/Write Capability: It supports read and write operations to its memory, along with a variety of commands for programming and memory management.
5. Power Supply: The device can operate with a low supply voltage, making it suitable for various power-sensitive applications.
This combination of features makes the DS2502S+T&R suitable for applications in asset tracking, identification, and other data logging tasks.

Manufacturer

The DS2502S+T&R is manufactured by Maxim Integrated, which is a subsidiary of Analog Devices, Inc. Maxim Integrated is a semiconductor company that specializes in designing and producing analog and mixed-signal integrated circuits (ICs). The company focuses on a wide range of applications, including automotive, industrial, communications, healthcare, and consumer electronics. Their products include sensors, power management devices, data conversion ICs, and interface solutions, among others. The DS2502S+T&R specifically is a digital signature IC often used for secure authentication and identification applications.

Application

The DS2502S+T&R is a secure SHA-256 based digital signature device primarily used in applications requiring tamper-proof authentication and secure data transmission. Common application areas include smartcards, access control systems, IoT devices, industrial automation, and secure communications. It ensures data integrity and authenticity in environments where security is paramount, such as financial transactions, identity verification, and system firmware protection.

Equivalent

The DS2502S+T&R chip is a 1-Wire EEPROM. Equivalent products include the DS2432, which offers similar EEPROM functionality with added security. Additionally, the DS28E02 can be considered as it provides 1-Wire interface but with a different memory structure. Always verify specific requirements and compatibility before substitution.