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參數(shù)資料
| 型號(hào)： | AT88SC0204C-Y4I |
| 廠商： | Atmel Corp. |
| 英文描述： | SWITCH, ILLUM AMBER; Switch function type:SPNO; Voltage, contact DC max:24V; Temp, op. max:70(degree C); Temp, op. min:-30(degree C); Diameter, panel cut-out:19.2mm; Length / Height, external:31mm; Depth, external:28.2mm; RoHS Compliant: Yes |
| 中文描述： | CryptoMemoryR 2千位 |
| 文件頁(yè)數(shù)： | 8/14頁(yè) |
| 文件大小： | 381K |
| 代理商： | AT88SC0204C-Y4I |
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AT88SC0204C
2022ES–SMEM–07/04
Encryption
The data exchanged between the device and the host during read, write and verify
password commands may be encrypted to ensure data confidentiality.
The issuer may choose to require encryption for a user zone by settings made in the
configuration zone. Any one of four keys may be selected for use with a user zone. In
this case, activation of the encryption mode is required in order to read/write data in the
zone and only encrypted data will be transmitted. Even if not required, the host may
elect to activate encryption provided the proper keys are known.
Supervisor Mode
Enabling this feature allows the holder of one specific password to gain full access to all
eight password sets, including the ability to change passwords.
Modify Forbidden
No write access is allowed in a user zone protected with this feature at any time. The
user zone must be written during device personalization prior to blowing the security
fuses.
Program Only
For a user zone protected by this feature, data within the zone may be changed from a
“1” to a “0”, but never from a “0” to a “1”.
Initial Device
Programming
To enable the security features of CryptoMemory, the device must first be personalized
to set up several registers and load in the appropriate passwords and keys. This is
accomplished through programming the configuration zone of CryptoMemory using sim-
ple write and read commands. To gain access to the configuration zone, the secure
code must first be successfully presented. For the AT88SC0204C device, the secure
code is $E5 47 47. After writing and verfiying data in the configuration zone, the security
fuses must be blown to lock this information in the device. For additional information on
personalizing CryptoMemory, please see the application notes
Programming CryptoM-
emory for Embedded Applications
and
Initializing CryptoMemory for Smart Card
Applications
(at www.Atmel.com).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT88SC0204C-WI | CryptoMemoryR 2 Kbit |
| AT88SC0204C-SU | CryptoMemoryR 2 Kbit |
| AT88SC0404C-MJ | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT02; No. of Contacts:5; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle |
| AT88SC0404C-MP | Circular Connector; Body Material:Aluminum; Series:PT02; No. of Contacts:5; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle; Circular Contact Gender:Socket; Insert Arrangement:18-5 |
| AT88SC0404C-PI | PT02A SERIES (MS3112) GENERAL DUTY BOX MOUNT RECEPTACLES, STRAIGHT BODY STYLE, SOLDER TERMINATION, 20 SHELL SIZE, 20-16 INSERT ARRANGEMENT, RECEPTACLE GENDER, 16 CONTACTS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT88SC0204C-Y4U | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:CryptoMemoryR 2 Kbit |
| AT88SC0404C | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:CryptoMemory 4 Kbit |
| AT88SC0404C_09 | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:CryptoMemory 4 Kbit |
| AT88SC0404C-09CT-XX | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:EEPROM |
| AT88SC0404C-09CT-XX-2.7 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:EEPROM |
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