Datasheet > DS2465_13

DS2465_13

更新时间： 2022-05-05 00:53:50

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
30页	2154K
描述
DeepCover Secure Authenticator with SHA-256 Coprocessor and 1-Wire Master Function

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DS2465_13 数据手册

ABRIDGED DATA SHEET

DS2465

DeepCover Secure Authenticator with

SHA-256 Coprocessor and 1-Wire Master Function

General Description

Features

DeepCover™ embedded security solutions cloak sensi-

tive data under multiple layers of advanced physical

security to provide the most secure key storage possible.

S SHA-256 Engine to Operate a Symmetric-Key-

Based Bidirectional Secure Authentication Model

S Two 32-Byte Pages of User EEPROM with Multiple

The DeepCover Secure Authenticator (DS2465) is a

SHA-256 coprocessor with built-in 1-Wire master that

Programmable Protection Options

S 1-Wire Master Port with Selectable Active or

provides the SHA-256 and memory functionality required

by a host system to communicate with and operate a

1-Wire SHA-256 slave. In addition, it performs protocol

Passive 1-Wire Pullup

S Strong 1-Wire Pullup Provided by an Internal Low-

Impedance Signal Path

conversion between the I C master and any attached

S 1-Wire Port Can Be Powered Down Under

1-Wire SHA-256 slaves. For 1-Wire line driving, internal

user-adjustable timers relieve the system host processor

from generating time-critical 1-Wire waveforms, support-

ing both standard and overdrive 1-Wire communication

speeds. The 1-Wire line can be powered down under

software control. Strong pullup features support 1-Wire

power delivery to 1-Wire devices such as EEPROMs.

When not in use, the DS2465 can be put in sleep mode

where power consumption is minimal.

Software Control

S I C Operating (Pullup) Voltage: 3.3V 1ꢀ0

S Operating Range: 3.3V 1ꢀ0% -ꢁꢀNC to +85NC

S 6-Pin TSOC Package

Applications

Authentication of Consumables

Secure Feature Control

Ordering Information appears at end of data sheet.

Typical Application Circuit

R = 1.1kΩ

MAXIMUM I C BUS CAPACITANCE 320pF

SDA

SCL

(I C PORT)

DS2465

µC

1-Wire LINE

SLPZ

DS28E15

DeepCover is a trademark and 1-Wire is a registered trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct at

1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

219-0017; Rev 2; 1/13

12 3 4 5 6 7...30

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