DS1961S

所属类别：传感器
产品名称：1024位EEPROM
厂商：Maxim
生产批号：12+
封装：SOIC-6
库存状态：有库存
库存量：8000
最低订购量：1
详细资料：

Product Introduction

DS1961S 1024-bit EEPROM

Key features:

The 1128-bit 5V EEPROM memory is divided into four-page, 256-bit, 64-bit write-only keys and up to five general-purpose read/write registers
Write access to the secret you need to know and the computing power and transfer authorization of the 160-bit MAC
Can be secretly and data memory write-protected (all or 0) or EPROM emulation mode ("write 0", page 1)
The on-chip 512-bit SHA-1 engine computes the 160-bit MAC and generated secrets
A wide 2.8V voltage range from -40°C to 5.25V to +85°C is read and written
Communicate with a single digital signal, host 14.1kb per second using the 1-Wire protocol
On-chip 16-bit CRC generator to ensure data transmission
High-speed mode increases communication speed to 125kbps
Operating temperature range from -40°C to +85°C
Data for a minimum of 10 years is stored at 85°C

Universal I-button functionality

Uniquely, the factory-lithography and tested 64-bit registration number (8-digit family code + 48-bit serial number + 8-bit CRC check code) guarantees absolute traceability because no two devices are the same
Multipoint controller for 1-Wire networks
Digital recognition and instantaneous contact with information
The chip-based data carrier stores information tightly
Data can be accessed while being opposed
The button shape and cup-shaped probe are self-adjusting
The durable stainless steel case is engraved with a registration number to withstand harsh environments
Easily apply self-adhesive backing with its flange latching, or lock with a ring on the edge that presses it
When detecting an answer, the reader is applied to the voltage for the first time

description

DS1961S combines 1024-bit EEPROM, 64-bit keys, an 8-byte register/control page for up to five user read/write bytes, a 512-bit SHA-1 engine, and a full-featured 1-Wire® interface with a rugged I-button ®. With the 1-Wire protocol, only one data cable and a ground loop are required to transmit data serially. An additional memory area DS1961S called a register acts as a buffer when written to the main memory, register page, or when a new secret is installed. The data is first written to the register, from where it can be read back. Once the data has been verified, the copy register command transmits the data to the final storage location, DS1961S specified, receiving a matching 160-bit message authentication code (MAC). MAC computing involves secret and additional data stored in the DS1961S, including the identity registration of the device. Loadable No need to provide MAC only a new secret. The SHA-1 engine can also activate the MAC to compute 160-bit when reading a stored page or computing a new secret instead of loading it.

DS1961S understands a unique command "Refresh staging." ” Proper use of the refresh order after the copy register operation (see Write Verification section) reduces weak bit failures in the touch environment. The refresh sequence also provides a means to restore the functionality of the weak state bit device.

Each DS1961S has its own 64-bit ROM registration code, which is provided by the factory lithography chip to ensure absolute traceability. Rugged stainless steel enclosure with high resistance to environmental hazards such as dust, moisture and impact. Its compact coin-operated profile self-mating socket mates make it DS1961S easy to use manually. Accessories allow DS1961S to be mounted on almost any surface, including plastic keychains and photo ID badges.

ICs related to DS1961S include:

Model	Manufacturers	lot number	encapsulation	illustrate
DS1961S	Maxim	12+	SOIC-6	1024-bit EEPROM

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