Datasheet > AT88SC0404CRF-WA1

AT88SC0404CRF-WA1

更新时间： 2024-01-15 18:41:19

品牌	Logo	应用领域
爱特美尔 - ATMEL		存储可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
9页	249K
描述
13.56 MHz CryptoRF EEPROM Memory 4 Kbits

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AT88SC0404CRF-WA1 数据手册

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User Memory

The EEPROM user memory is divided into four user zones as shown in the memory

map in Table 1. Multiple zones allow for different types of data or files to be stored in

different zones. Access to the user zones is allowed only after security requirements

have been met. These security requirements are defined by the user in the configuration

memory during personalization of the device. The EEPROM memory page length is 16

bytes.

Table 1. Memory Map

Zone

$00

–

128 Bytes

User 0

–

$78

$00

–

User 1

User 2

User 3

–

$78

$00

–

$78

$00

–

$78

Configuration

Memory

The configuration memory consists of 2048 bits of EEPROM memory used for storing

system data, passwords, keys, codes, and security-level definitions for each user zone.

Access rights to the configuration zone are defined in the control logic and may not be

altered by the user. These access rights include the ability to program certain portions of

the configuration memory and then lock the data written through use of the security

fuses.

Security Fuses

There are three fuses on the device that must be blown during the device personaliza-

tion process. Each fuse locks certain portions of the configuration memory as OTP

memory. Fuses are designated for the module manufacturer, card manufacturer and

card issuer and must be blown in sequence.

AT88SC0404CRF

5023CS–CRRF–12/06

1 2 345 6 7...9

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