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PDF AT88SC0808C Data sheet ( Hoja de datos )
| Número de pieza | AT88SC0808C | |
| Descripción | (AT88SCxxxxxC) CryptoMemory Specification For Standard Mode of Operation | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• A Family of 9 Devices with User Memories from 1-Kbit to 256-Kbit
• EEPROM User Memory
– Four, Eight or Sixteen Zones
– Self-timed Write Cycles
– Single-Byte or Multiple-Byte Page-Write Modes
– Programmable Access Rights for Each Zone
• 2-Kbit Configuration Memory
– 37-byte OTP Area for User-defined Codes
– 160-byte Area for User-defined Keys and Passwords
• High Security Features
– 64-bit Mutual Authentication Protocol (under license of ELVA)
– Encrypted Checksum
– Stream Encryption
– Four Key Sets for Authentication and Encryption
– Eight Sets of Two 24-bit Passwords
– Anti-tearing Function
– Voltage and Frequency Monitor
• Embedded Application Features
– Low Voltage Operation: 2.7V to 5.5V
– Secure Nonvolatile Storage for Sensitive System or User Information
– 2-wire Serial Interface
– 1.0 MHz Compatibility for Fast Operation
– Standard 8-lead Plastic Packages
– Same Pinout as 2-wire Serial EEPROM's
• Smart Card Features
– ISO 7816 Class A (5V) or Class B (3V) Operation
– ISO 7816-3 Asynchronous T = 0 Protocol (Gemplus® Patent)
– Multiple Zones, Key Sets and Passwords for Multi-application Use
– Synchronous 2-wire Serial Interface for Faster Device Initialization
– Programmable 8-byte Answer-To-Reset Register
– ISO 7816-2 Compliant Modules
• High Reliability
– Endurance: 100,000 Cycles
– Data Retention: 10 years
– ESD Protection: 4,000V
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CryptoMemory
Specification
For Standard
Mode of
Operation
AT88SC0104C
AT88SC0204C
AT88SC0404C
AT88SC0808C
AT88SC1616C
AT88SC3216C
AT88SC6416C
AT88SC12816C
AT88SC25616C
5210B–SMIC–11/08
1 page  
www.DataSheet4U.com
2.1 Embedded Applications
A 2-wire serial interface running at 1.0 MHz is used for fast and efficient communications with up
to 15 devices that may be individually addressed. CryptoMemory is available in industry stan-
dard 8-lead packages with the same familiar pinout as 2-wire serial EEPROM’s supporting only
the synchronous communications protocol.
2.2 Smart Card Applications
CryptoMemory offers the ability to communicate with virtually any smart card reader using the
asynchronous T=0 protocol defined in ISO 7816-3. For devices with 32K bits of user memory
and larger, communication speeds up to 153,600 baud are supported by utilizing ISO 7816-3
Protocol and Parameter Selection. All CryptoMemory devices in smart card module form will
also communicate using a synchronous 2-wire serial interface.
Figure 2-1. Block Diagram
VCC
GND
Power
Management
Authentication,
Encryption and
Certification Unit
SCL/CLK
SDA/IO
Synchronous
Interface
Asynchronous
ISO Interface
Data Transfer
Password
Verification
EEPROM
RST
Reset Block
Answer to Reset
2.3 Scope and Purpose of This Document
This document covers only the Standard Mode of operation of CryptoMemory. The other modes
of operation are the Authentication and Encryption Modes. This document provides all the infor-
mation needed to utilize CryptoMemory in the Standard Mode. The scoping of this document
allows for free distribution without formal requirements of any user agreements and serves the
purpose of developing applications using only the Standard Mode of operation. Documents con-
taining detailed description of the cryptographic technology, operation and function of the
Authentication and Encryption Modes of CryptoMemory are secure and so only available under
Non-Disclosure and Limited Licensing Agreements (NDA and LLA). Contact your regional
Atmel sales office to obtain these secure documents.
2 AT88SC0104/0204/0404/0808/1616/3216/6416/12816/25616C
5210B–SMIC–11/08
5 Page 
www.DataSheet4U.com
Figure 4-8. AT88SC12816C User Memory
ZONE
$0 $1 $2 $3 $4 $5 $6 $7
$000
User 0
-
-
1024 Bytes
$3F8
User 1
$000
--
--
--
User 14
$3F8
$000
User 15
-
-
1024 Bytes
$3F8
Note: Page size= 128 bytes
Figure 4-9. AT88SC25616C User Memory
ZONE
$0 $1 $2 $3 $4 $5 $6 $7
$000
User 0
-
-
2024 Bytes
$7F8
User 1
$000
--
--
--
User 14
$7F8
$000
User 15
-
-
2024 Bytes
$7F8
Note: Page size= 128 bytes
4.1.1
Control Logic
Access to the user zones occurs only through the device’s control logic. This logic is configu-
rable through proper programming of access, passwords and keys registers of the configuration
8 AT88SC0104/0204/0404/0808/1616/3216/6416/12816/25616C
5210B–SMIC–11/08
11 Page | ||
| Páginas | Total 58 Páginas | |
| PDF Descargar | [ Datasheet AT88SC0808C.PDF ] | |
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