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AT88SA102S-SH-T

更新时间： 2024-01-29 04:43:29

品牌	Logo	应用领域
爱特美尔 - ATMEL		电信集成电路电信电路光电二极管异步传输模式 ATM
页数	文件大小	规格书
24页	256K
描述
Atmel CryptoAuthentication

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技术参数
数据手册

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AT88SA102S-SH-T 技术参数

生命周期：	Obsolete	零件包装代码：	SOT-23
包装说明：	TSSOP,	针数：	3
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.8	JESD-30 代码：	R-PDSO-G3
长度：	2.9 mm	功能数量：	1
端子数量：	3	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	认证状态：	Not Qualified
座面最大高度：	1.12 mm	标称供电电压：	2.7 V
表面贴装：	YES	电信集成电路类型：	TELECOM CIRCUIT
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	0.95 mm	端子位置：	DUAL
宽度：	1.3 mm	Base Number Matches：	1

AT88SA102S-SH-T 数据手册

The chip includes 128-single bit one time programmable fuses that can be used for personalization, status or

consumption logging. Atmel^®programs 40 of these bits prior to the chip leaving the factory, leaving 88 for user

purposes. Refer to Section 1.3 for more information.

Note:

The chip implements a failsafe internal watchdog timer that forces it into a very low power mode after a certain time

interval regardless of any command execution or IO transfers that may be happening at the time the timer expires.

System programming must take this into consideration. Refer to Section 4.5 for more details

1.1. Usage

There are many different ways in which Atmel AT88SA102S can add an authentication capability to a system. For

more information, refer to the “Atmel CryptoAuthentication Usage Examples” Applications Note.

In general, however, all these security models usually employ one of two general key management strategies:

• Fixed challenge response number pair stored in the host. In this case, the host sends its particular challenge

and only an authentic AT88SA102S can generate the correct response. Since no secret is stored on the host,

there is no security cost on the host. Depending on the particulars of the system, each host may have a

different challenge response pair and/or each client may have the same key.

• Host computes the response that should be provided for a particular client against a random challenge and/or

include the client ID number in the calculation. In this case, the host needs to have the capability to securely

store the secret from which diversified response will be computed. One way to do this is to use a

CryptoAuthentication host chip. Since each client is unique, the host can maintain a dynamic black list of

clients that have been found to be fraudulent.

1.2. Memory Resources

Fuse

Block of 128-fuse bits that can be written through the one wire interface. Fuse[1] and

Fuse[87] have special meanings, refer to Section 1.3 for more details. Fuse[88:95] are part of

the manufacturing ID value fixed by Atmel. Fuse[96:127] are part of the serial number

programmed by Atmel which is guaranteed to be unique. See Section 1.4 for more details on

the Manufacturing ID and Serial Number.

ROM

Metal mask programmed memory. Unrestricted reads are permitted on the first 64-bits of this

array. The physical ROM will be larger and will contain other information that cannot be read.

ROM MfrID

2-bytes of ROM that specifies part of the manufacturing ID code. This value is assigned by

Atmel and is always the same for all chips of a particular model number. For the

AT88SA102S, this value is 0x23 01. (Appears on the bus: 0x01 23) ROM MfrID can be read

by accessing ROM bytes zero and one of Address zero.

ROM SN

RevNum

2-bytes of ROM that can be used to identify chips among others on the wafer. These bits

reduce the number of fuses necessary to construct a unique serial number. The ROM SN is

read by accessing ROM bytes two and three of Address zero. ROM SN can always be read

by the system and is optionally included in the message digested by the MAC command.

4-bytes of ROM that are used by Atmel to identify the model mask and/or design revision of

the AT88SA102S chip. These bytes can be freely read as the four bytes returned ROM

address one, however system code should not depend on this value as it may change from

time to time.

Atmel AT88SA102S

8584F–SMEM–8/10

123 4 5 6 7...24

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与AT88SA102S-SH-T相关器件

型号	品牌	描述	获取价格	数据表
AT88SA102S-TH-T	ATMEL	Atmel CryptoAuthentication	获取价格
AT88SA102S-TSU-T	ATMEL	Atmel CryptoAuthentication	获取价格
AT88SA10HS	ATMEL	CryptoAuthentication™ Host Security Chip	获取价格
AT88SA10HS_10	ATMEL	Atmel CryptoAuthentication Host Security Chip	获取价格
AT88SA10HS_11	ATMEL	Atmel CryptoAuthentication Host Security Chip	获取价格
AT88SA10HS-SH-T	ATMEL	Atmel CryptoAuthentication Host Security Chip	获取价格

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